/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:46:00,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:46:00,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:46:00,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:46:00,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:46:00,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:46:00,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:46:00,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:46:00,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:46:00,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:46:00,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:46:00,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:46:00,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:46:00,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:46:00,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:46:00,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:46:00,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:46:00,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:46:00,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:46:00,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:46:00,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:46:00,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:46:00,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:46:00,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:46:00,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-20 21:46:00,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:46:00,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:46:00,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:46:00,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:46:00,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:46:00,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:46:00,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:46:00,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:46:00,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:46:00,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:46:00,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:46:00,185 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf [2021-01-20 21:46:00,240 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:46:00,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:46:00,245 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:46:00,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:46:00,246 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:46:00,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:46:00,246 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:46:00,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:46:00,246 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:46:00,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:46:00,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:46:00,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:46:00,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:46:00,248 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:46:00,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:46:00,249 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:46:00,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:46:00,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:46:00,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:46:00,250 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:46:00,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:46:00,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:46:00,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:46:00,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:46:00,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:46:00,251 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:46:00,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:46:00,251 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:46:00,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:46:00,252 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:46:00,252 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:46:00,252 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:46:00,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:46:00,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:46:00,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:46:00,775 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:46:00,776 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:46:00,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-01-20 21:46:00,864 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7350d6fe/f732502502b64a49a82c8035f95c4e77/FLAG68389cc23 [2021-01-20 21:46:01,600 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:46:01,600 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-01-20 21:46:01,645 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7350d6fe/f732502502b64a49a82c8035f95c4e77/FLAG68389cc23 [2021-01-20 21:46:01,802 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7350d6fe/f732502502b64a49a82c8035f95c4e77 [2021-01-20 21:46:01,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:46:01,811 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:46:01,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:46:01,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:46:01,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:46:01,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:46:01" (1/1) ... [2021-01-20 21:46:01,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e12edee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:46:01, skipping insertion in model container [2021-01-20 21:46:01,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:46:01" (1/1) ... [2021-01-20 21:46:01,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:46:01,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:46:02,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:46:02,892 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:46:02,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:46:03,452 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:46:03,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:46:03 WrapperNode [2021-01-20 21:46:03,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:46:03,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:46:03,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:46:03,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:46:03,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:46:03" (1/1) ... [2021-01-20 21:46:03,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:46:03" (1/1) ... [2021-01-20 21:46:03,552 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:46:03,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:46:03,553 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:46:03,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:46:03,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:46:03" (1/1) ... [2021-01-20 21:46:03,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:46:03" (1/1) ... [2021-01-20 21:46:03,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:46:03" (1/1) ... [2021-01-20 21:46:03,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:46:03" (1/1) ... [2021-01-20 21:46:03,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:46:03" (1/1) ... [2021-01-20 21:46:03,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:46:03" (1/1) ... [2021-01-20 21:46:03,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:46:03" (1/1) ... [2021-01-20 21:46:03,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:46:03,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:46:03,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:46:03,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:46:03,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:46:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:46:03,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:46:03,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-20 21:46:03,702 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-01-20 21:46:03,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-01-20 21:46:03,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:46:03,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:46:03,703 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-01-20 21:46:03,703 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-01-20 21:46:03,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:46:03,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:46:03,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:46:03,705 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 21:46:04,405 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:46:04,406 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2021-01-20 21:46:04,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:46:04 BoogieIcfgContainer [2021-01-20 21:46:04,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:46:04,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:46:04,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:46:04,416 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:46:04,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:46:01" (1/3) ... [2021-01-20 21:46:04,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec16646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:46:04, skipping insertion in model container [2021-01-20 21:46:04,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:46:03" (2/3) ... [2021-01-20 21:46:04,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec16646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:46:04, skipping insertion in model container [2021-01-20 21:46:04,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:46:04" (3/3) ... [2021-01-20 21:46:04,419 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2021-01-20 21:46:04,436 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:46:04,437 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:46:04,441 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-01-20 21:46:04,442 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:46:04,487 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,487 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,487 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,487 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,488 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,488 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,488 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,488 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,489 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,489 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,489 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,489 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,490 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,490 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,490 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,490 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,491 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,491 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,491 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,491 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,491 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,492 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,492 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,492 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,492 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,493 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,493 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,493 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,493 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,493 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,494 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,494 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,494 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,494 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,495 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,495 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,495 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,495 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,496 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,496 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,496 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,496 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,497 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,497 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,497 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,497 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,498 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,498 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,498 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,498 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,499 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,499 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,499 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,499 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,499 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,500 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,500 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,500 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,501 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,501 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,501 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,501 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,501 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,501 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,502 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,502 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,502 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,502 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,502 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,503 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,503 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,503 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,503 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,503 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,504 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,504 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,504 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,504 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,504 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,505 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,505 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,505 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,505 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,505 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,506 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,506 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,506 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,506 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,506 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,507 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,507 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,507 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,507 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,508 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,508 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,508 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,508 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,509 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,509 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,509 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,509 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,509 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,509 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,510 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,510 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,510 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,511 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,511 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,511 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,511 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,512 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,512 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,512 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,512 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,512 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,513 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,515 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,515 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,515 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,516 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,516 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,516 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,516 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,516 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,517 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,517 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,523 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,523 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,523 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,524 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,524 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,524 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,524 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,524 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,525 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,525 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:46:04,536 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-01-20 21:46:04,549 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-01-20 21:46:04,577 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:46:04,577 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:46:04,577 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:46:04,577 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:46:04,577 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:46:04,577 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:46:04,578 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:46:04,578 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:46:04,594 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 178 places, 188 transitions, 398 flow [2021-01-20 21:46:05,099 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9136 states, 9125 states have (on average 2.8808767123287673) internal successors, (26288), 9135 states have internal predecessors, (26288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:05,145 INFO L276 IsEmpty]: Start isEmpty. Operand has 9136 states, 9125 states have (on average 2.8808767123287673) internal successors, (26288), 9135 states have internal predecessors, (26288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:05,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-01-20 21:46:05,154 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:05,155 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:46:05,155 INFO L429 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]=== [2021-01-20 21:46:05,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:05,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1810721684, now seen corresponding path program 1 times [2021-01-20 21:46:05,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:05,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550419412] [2021-01-20 21:46:05,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:05,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:05,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550419412] [2021-01-20 21:46:05,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:05,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:46:05,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163012767] [2021-01-20 21:46:05,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:46:05,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:05,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:46:05,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:46:05,774 INFO L87 Difference]: Start difference. First operand has 9136 states, 9125 states have (on average 2.8808767123287673) internal successors, (26288), 9135 states have internal predecessors, (26288), 0 states have call successors, (0), 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 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:06,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:06,214 INFO L93 Difference]: Finished difference Result 8341 states and 23240 transitions. [2021-01-20 21:46:06,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:46:06,216 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-01-20 21:46:06,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:06,219 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:46:06,219 INFO L78 Accepts]: Start accepts. Automaton has 8341 states and 23240 transitions. Word has length 38 [2021-01-20 21:46:06,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:06,221 INFO L481 AbstractCegarLoop]: Abstraction has 8341 states and 23240 transitions. [2021-01-20 21:46:06,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:06,222 INFO L276 IsEmpty]: Start isEmpty. Operand 8341 states and 23240 transitions. [2021-01-20 21:46:06,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-20 21:46:06,224 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:06,224 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:46:06,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:46:06,225 INFO L429 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]=== [2021-01-20 21:46:06,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:06,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1691754833, now seen corresponding path program 1 times [2021-01-20 21:46:06,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:06,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800626796] [2021-01-20 21:46:06,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:06,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:06,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800626796] [2021-01-20 21:46:06,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:06,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:46:06,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918435514] [2021-01-20 21:46:06,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:46:06,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:06,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:46:06,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:46:06,483 INFO L87 Difference]: Start difference. First operand 8341 states and 23240 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:06,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:06,753 INFO L93 Difference]: Finished difference Result 8340 states and 23239 transitions. [2021-01-20 21:46:06,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 21:46:06,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-01-20 21:46:06,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:06,755 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-01-20 21:46:06,756 INFO L78 Accepts]: Start accepts. Automaton has 8340 states and 23239 transitions. Word has length 44 [2021-01-20 21:46:06,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:06,756 INFO L481 AbstractCegarLoop]: Abstraction has 8340 states and 23239 transitions. [2021-01-20 21:46:06,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:06,757 INFO L276 IsEmpty]: Start isEmpty. Operand 8340 states and 23239 transitions. [2021-01-20 21:46:06,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-01-20 21:46:06,761 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:06,761 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:46:06,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:46:06,762 INFO L429 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]=== [2021-01-20 21:46:06,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:06,763 INFO L82 PathProgramCache]: Analyzing trace with hash 2068266895, now seen corresponding path program 1 times [2021-01-20 21:46:06,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:06,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4163383] [2021-01-20 21:46:06,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:06,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:06,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4163383] [2021-01-20 21:46:06,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:06,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:46:06,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053693131] [2021-01-20 21:46:06,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:46:06,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:07,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:46:07,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:46:07,043 INFO L87 Difference]: Start difference. First operand 8340 states and 23239 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:07,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:07,491 INFO L93 Difference]: Finished difference Result 11962 states and 33385 transitions. [2021-01-20 21:46:07,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:46:07,492 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-01-20 21:46:07,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:07,493 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:46:07,493 INFO L78 Accepts]: Start accepts. Automaton has 11962 states and 33385 transitions. Word has length 62 [2021-01-20 21:46:07,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:07,494 INFO L481 AbstractCegarLoop]: Abstraction has 11962 states and 33385 transitions. [2021-01-20 21:46:07,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:07,494 INFO L276 IsEmpty]: Start isEmpty. Operand 11962 states and 33385 transitions. [2021-01-20 21:46:07,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-01-20 21:46:07,500 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:07,500 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:46:07,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:46:07,500 INFO L429 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]=== [2021-01-20 21:46:07,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:07,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1199812273, now seen corresponding path program 1 times [2021-01-20 21:46:07,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:07,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108573271] [2021-01-20 21:46:07,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:07,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:07,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:07,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108573271] [2021-01-20 21:46:07,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:07,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:46:07,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774064219] [2021-01-20 21:46:07,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:46:07,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:07,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:46:07,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:46:07,655 INFO L87 Difference]: Start difference. First operand 11962 states and 33385 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:08,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:08,184 INFO L93 Difference]: Finished difference Result 15556 states and 43300 transitions. [2021-01-20 21:46:08,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:46:08,185 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-01-20 21:46:08,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:08,186 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:46:08,186 INFO L78 Accepts]: Start accepts. Automaton has 15556 states and 43300 transitions. Word has length 68 [2021-01-20 21:46:08,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:08,187 INFO L481 AbstractCegarLoop]: Abstraction has 15556 states and 43300 transitions. [2021-01-20 21:46:08,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:08,190 INFO L276 IsEmpty]: Start isEmpty. Operand 15556 states and 43300 transitions. [2021-01-20 21:46:08,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-01-20 21:46:08,200 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:08,200 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:46:08,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:46:08,202 INFO L429 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]=== [2021-01-20 21:46:08,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:08,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1278281470, now seen corresponding path program 1 times [2021-01-20 21:46:08,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:08,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139168479] [2021-01-20 21:46:08,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:08,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:08,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139168479] [2021-01-20 21:46:08,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:08,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-20 21:46:08,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729757823] [2021-01-20 21:46:08,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-20 21:46:08,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:08,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-20 21:46:08,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-20 21:46:08,342 INFO L87 Difference]: Start difference. First operand 15556 states and 43300 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:08,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:08,424 INFO L93 Difference]: Finished difference Result 2860 states and 7566 transitions. [2021-01-20 21:46:08,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 21:46:08,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-01-20 21:46:08,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:08,426 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-20 21:46:08,426 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 7566 transitions. Word has length 76 [2021-01-20 21:46:08,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:08,427 INFO L481 AbstractCegarLoop]: Abstraction has 2860 states and 7566 transitions. [2021-01-20 21:46:08,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:08,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 7566 transitions. [2021-01-20 21:46:08,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:46:08,435 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:08,435 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:46:08,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 21:46:08,435 INFO L429 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]=== [2021-01-20 21:46:08,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:08,436 INFO L82 PathProgramCache]: Analyzing trace with hash -797869625, now seen corresponding path program 1 times [2021-01-20 21:46:08,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:08,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601130355] [2021-01-20 21:46:08,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:09,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:09,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601130355] [2021-01-20 21:46:09,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:09,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:46:09,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137806289] [2021-01-20 21:46:09,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:46:09,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:09,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:46:09,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:46:09,179 INFO L87 Difference]: Start difference. First operand 2860 states and 7566 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:11,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:11,897 INFO L93 Difference]: Finished difference Result 7231 states and 19139 transitions. [2021-01-20 21:46:11,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-01-20 21:46:11,900 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:46:11,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:11,902 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=702, Invalid=1460, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 21:46:11,902 INFO L78 Accepts]: Start accepts. Automaton has 7231 states and 19139 transitions. Word has length 109 [2021-01-20 21:46:11,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:11,907 INFO L481 AbstractCegarLoop]: Abstraction has 7231 states and 19139 transitions. [2021-01-20 21:46:11,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:11,907 INFO L276 IsEmpty]: Start isEmpty. Operand 7231 states and 19139 transitions. [2021-01-20 21:46:11,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:46:11,940 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:11,940 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:46:11,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 21:46:11,940 INFO L429 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]=== [2021-01-20 21:46:11,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:11,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1599994753, now seen corresponding path program 1 times [2021-01-20 21:46:11,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:11,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660027542] [2021-01-20 21:46:11,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:12,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:12,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660027542] [2021-01-20 21:46:12,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:12,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-01-20 21:46:12,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257428325] [2021-01-20 21:46:12,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-20 21:46:12,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:12,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-20 21:46:12,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:46:12,840 INFO L87 Difference]: Start difference. First operand 7231 states and 19139 transitions. Second operand has 15 states, 15 states have (on average 7.266666666666667) internal successors, (109), 15 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:14,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:14,121 INFO L93 Difference]: Finished difference Result 9190 states and 23724 transitions. [2021-01-20 21:46:14,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-01-20 21:46:14,124 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.266666666666667) internal successors, (109), 15 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:46:14,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:14,125 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=230, Invalid=526, Unknown=0, NotChecked=0, Total=756 [2021-01-20 21:46:14,128 INFO L78 Accepts]: Start accepts. Automaton has 9190 states and 23724 transitions. Word has length 109 [2021-01-20 21:46:14,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:14,129 INFO L481 AbstractCegarLoop]: Abstraction has 9190 states and 23724 transitions. [2021-01-20 21:46:14,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.266666666666667) internal successors, (109), 15 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:14,129 INFO L276 IsEmpty]: Start isEmpty. Operand 9190 states and 23724 transitions. [2021-01-20 21:46:14,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:46:14,150 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:14,150 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:46:14,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 21:46:14,151 INFO L429 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]=== [2021-01-20 21:46:14,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:14,152 INFO L82 PathProgramCache]: Analyzing trace with hash -72871819, now seen corresponding path program 2 times [2021-01-20 21:46:14,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:14,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735489724] [2021-01-20 21:46:14,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:14,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:14,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735489724] [2021-01-20 21:46:14,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:14,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-01-20 21:46:14,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866372321] [2021-01-20 21:46:14,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-20 21:46:14,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:14,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-20 21:46:14,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:46:14,868 INFO L87 Difference]: Start difference. First operand 9190 states and 23724 transitions. Second operand has 15 states, 15 states have (on average 7.266666666666667) internal successors, (109), 15 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:16,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:16,294 INFO L93 Difference]: Finished difference Result 10377 states and 26084 transitions. [2021-01-20 21:46:16,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-01-20 21:46:16,295 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.266666666666667) internal successors, (109), 15 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:46:16,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:16,296 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2021-01-20 21:46:16,296 INFO L78 Accepts]: Start accepts. Automaton has 10377 states and 26084 transitions. Word has length 109 [2021-01-20 21:46:16,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:16,297 INFO L481 AbstractCegarLoop]: Abstraction has 10377 states and 26084 transitions. [2021-01-20 21:46:16,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.266666666666667) internal successors, (109), 15 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:16,297 INFO L276 IsEmpty]: Start isEmpty. Operand 10377 states and 26084 transitions. [2021-01-20 21:46:16,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:46:16,317 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:16,317 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:46:16,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-20 21:46:16,320 INFO L429 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]=== [2021-01-20 21:46:16,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:16,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1536768341, now seen corresponding path program 3 times [2021-01-20 21:46:16,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:16,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916834322] [2021-01-20 21:46:16,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:17,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:17,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916834322] [2021-01-20 21:46:17,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:17,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:46:17,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707044504] [2021-01-20 21:46:17,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:46:17,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:17,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:46:17,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:46:17,285 INFO L87 Difference]: Start difference. First operand 10377 states and 26084 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:18,194 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2021-01-20 21:46:18,433 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2021-01-20 21:46:18,844 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2021-01-20 21:46:19,204 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-01-20 21:46:19,368 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2021-01-20 21:46:19,506 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-01-20 21:46:19,663 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-01-20 21:46:19,799 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2021-01-20 21:46:20,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:20,002 INFO L93 Difference]: Finished difference Result 14052 states and 34915 transitions. [2021-01-20 21:46:20,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-01-20 21:46:20,003 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:46:20,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:20,004 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=307, Invalid=749, Unknown=0, NotChecked=0, Total=1056 [2021-01-20 21:46:20,004 INFO L78 Accepts]: Start accepts. Automaton has 14052 states and 34915 transitions. Word has length 109 [2021-01-20 21:46:20,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:20,005 INFO L481 AbstractCegarLoop]: Abstraction has 14052 states and 34915 transitions. [2021-01-20 21:46:20,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:20,005 INFO L276 IsEmpty]: Start isEmpty. Operand 14052 states and 34915 transitions. [2021-01-20 21:46:20,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:46:20,025 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:20,025 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:46:20,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-20 21:46:20,026 INFO L429 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]=== [2021-01-20 21:46:20,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:20,026 INFO L82 PathProgramCache]: Analyzing trace with hash -891700543, now seen corresponding path program 4 times [2021-01-20 21:46:20,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:20,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780427333] [2021-01-20 21:46:20,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:20,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:20,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780427333] [2021-01-20 21:46:20,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:20,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:46:20,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074292945] [2021-01-20 21:46:20,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:46:20,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:20,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:46:20,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:46:20,903 INFO L87 Difference]: Start difference. First operand 14052 states and 34915 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:21,949 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2021-01-20 21:46:22,380 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2021-01-20 21:46:22,564 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-01-20 21:46:22,912 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-01-20 21:46:23,073 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-01-20 21:46:23,226 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-01-20 21:46:23,388 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-01-20 21:46:23,532 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2021-01-20 21:46:23,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:23,722 INFO L93 Difference]: Finished difference Result 14102 states and 34965 transitions. [2021-01-20 21:46:23,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 21:46:23,723 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:46:23,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:23,724 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 21:46:23,724 INFO L78 Accepts]: Start accepts. Automaton has 14102 states and 34965 transitions. Word has length 109 [2021-01-20 21:46:23,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:23,725 INFO L481 AbstractCegarLoop]: Abstraction has 14102 states and 34965 transitions. [2021-01-20 21:46:23,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:23,727 INFO L276 IsEmpty]: Start isEmpty. Operand 14102 states and 34965 transitions. [2021-01-20 21:46:23,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:46:23,745 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:23,745 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:46:23,745 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-20 21:46:23,745 INFO L429 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]=== [2021-01-20 21:46:23,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:23,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1648014349, now seen corresponding path program 5 times [2021-01-20 21:46:23,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:23,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620423027] [2021-01-20 21:46:23,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:24,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:24,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620423027] [2021-01-20 21:46:24,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:24,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-01-20 21:46:24,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999057766] [2021-01-20 21:46:24,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-20 21:46:24,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:24,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-20 21:46:24,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:46:24,464 INFO L87 Difference]: Start difference. First operand 14102 states and 34965 transitions. Second operand has 15 states, 15 states have (on average 7.266666666666667) internal successors, (109), 15 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:25,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:25,963 INFO L93 Difference]: Finished difference Result 15802 states and 38414 transitions. [2021-01-20 21:46:25,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-01-20 21:46:25,964 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.266666666666667) internal successors, (109), 15 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:46:25,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:25,966 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2021-01-20 21:46:25,966 INFO L78 Accepts]: Start accepts. Automaton has 15802 states and 38414 transitions. Word has length 109 [2021-01-20 21:46:25,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:25,966 INFO L481 AbstractCegarLoop]: Abstraction has 15802 states and 38414 transitions. [2021-01-20 21:46:25,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.266666666666667) internal successors, (109), 15 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:25,968 INFO L276 IsEmpty]: Start isEmpty. Operand 15802 states and 38414 transitions. [2021-01-20 21:46:25,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:46:25,983 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:25,983 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:46:25,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-20 21:46:25,983 INFO L429 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]=== [2021-01-20 21:46:25,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:25,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1045403583, now seen corresponding path program 6 times [2021-01-20 21:46:25,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:25,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233728428] [2021-01-20 21:46:25,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:26,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:26,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233728428] [2021-01-20 21:46:26,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:26,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:46:26,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407361349] [2021-01-20 21:46:26,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:46:26,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:26,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:46:26,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:46:26,820 INFO L87 Difference]: Start difference. First operand 15802 states and 38414 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:28,012 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-01-20 21:46:28,208 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-01-20 21:46:28,638 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-01-20 21:46:28,882 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-01-20 21:46:29,119 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-01-20 21:46:29,274 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-01-20 21:46:29,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:29,497 INFO L93 Difference]: Finished difference Result 17836 states and 42407 transitions. [2021-01-20 21:46:29,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 21:46:29,497 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:46:29,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:29,499 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 21:46:29,499 INFO L78 Accepts]: Start accepts. Automaton has 17836 states and 42407 transitions. Word has length 109 [2021-01-20 21:46:29,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:29,500 INFO L481 AbstractCegarLoop]: Abstraction has 17836 states and 42407 transitions. [2021-01-20 21:46:29,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:29,500 INFO L276 IsEmpty]: Start isEmpty. Operand 17836 states and 42407 transitions. [2021-01-20 21:46:29,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:46:29,523 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:29,523 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:46:29,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-20 21:46:29,523 INFO L429 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]=== [2021-01-20 21:46:29,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:29,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1496798633, now seen corresponding path program 7 times [2021-01-20 21:46:29,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:29,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973685183] [2021-01-20 21:46:29,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:30,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:30,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973685183] [2021-01-20 21:46:30,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:30,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:46:30,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059969750] [2021-01-20 21:46:30,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:46:30,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:30,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:46:30,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:46:30,357 INFO L87 Difference]: Start difference. First operand 17836 states and 42407 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:31,200 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:46:31,554 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:46:32,015 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2021-01-20 21:46:32,183 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-01-20 21:46:32,689 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 21:46:32,845 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:46:32,983 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:46:33,140 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-01-20 21:46:33,261 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 21:46:33,396 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:46:33,557 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:46:33,722 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 21:46:34,000 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:46:34,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:34,365 INFO L93 Difference]: Finished difference Result 22025 states and 52153 transitions. [2021-01-20 21:46:34,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 21:46:34,366 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:46:34,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:34,368 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=495, Invalid=1145, Unknown=0, NotChecked=0, Total=1640 [2021-01-20 21:46:34,368 INFO L78 Accepts]: Start accepts. Automaton has 22025 states and 52153 transitions. Word has length 109 [2021-01-20 21:46:34,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:34,369 INFO L481 AbstractCegarLoop]: Abstraction has 22025 states and 52153 transitions. [2021-01-20 21:46:34,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:34,369 INFO L276 IsEmpty]: Start isEmpty. Operand 22025 states and 52153 transitions. [2021-01-20 21:46:34,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:46:34,390 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:34,390 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:46:34,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-20 21:46:34,391 INFO L429 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]=== [2021-01-20 21:46:34,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:34,391 INFO L82 PathProgramCache]: Analyzing trace with hash 2141866431, now seen corresponding path program 8 times [2021-01-20 21:46:34,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:34,392 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063162140] [2021-01-20 21:46:34,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:35,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:35,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063162140] [2021-01-20 21:46:35,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:35,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:46:35,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985813606] [2021-01-20 21:46:35,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:46:35,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:35,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:46:35,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:46:35,189 INFO L87 Difference]: Start difference. First operand 22025 states and 52153 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:36,140 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:46:36,449 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:46:36,631 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:46:37,180 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 21:46:37,361 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:46:37,528 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 21:46:38,008 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 21:46:38,168 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:46:38,308 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:46:38,470 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-01-20 21:46:38,593 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 21:46:38,731 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:46:38,886 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:46:39,036 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 21:46:39,291 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:46:39,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:39,663 INFO L93 Difference]: Finished difference Result 22075 states and 52203 transitions. [2021-01-20 21:46:39,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-20 21:46:39,664 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:46:39,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:39,665 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=482, Invalid=1240, Unknown=0, NotChecked=0, Total=1722 [2021-01-20 21:46:39,666 INFO L78 Accepts]: Start accepts. Automaton has 22075 states and 52203 transitions. Word has length 109 [2021-01-20 21:46:39,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:39,666 INFO L481 AbstractCegarLoop]: Abstraction has 22075 states and 52203 transitions. [2021-01-20 21:46:39,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:39,667 INFO L276 IsEmpty]: Start isEmpty. Operand 22075 states and 52203 transitions. [2021-01-20 21:46:39,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:46:39,690 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:39,690 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:46:39,691 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-20 21:46:39,691 INFO L429 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]=== [2021-01-20 21:46:39,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:39,691 INFO L82 PathProgramCache]: Analyzing trace with hash 159527075, now seen corresponding path program 9 times [2021-01-20 21:46:39,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:39,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842730124] [2021-01-20 21:46:39,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:39,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:40,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:40,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842730124] [2021-01-20 21:46:40,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:40,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:46:40,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280688047] [2021-01-20 21:46:40,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:46:40,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:40,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:46:40,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:46:40,496 INFO L87 Difference]: Start difference. First operand 22075 states and 52203 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:42,026 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 21:46:42,191 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:46:42,361 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 21:46:42,812 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 21:46:42,986 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:46:43,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:43,541 INFO L93 Difference]: Finished difference Result 22125 states and 52253 transitions. [2021-01-20 21:46:43,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 21:46:43,542 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:46:43,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:43,543 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=320, Invalid=870, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 21:46:43,544 INFO L78 Accepts]: Start accepts. Automaton has 22125 states and 52253 transitions. Word has length 109 [2021-01-20 21:46:43,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:43,544 INFO L481 AbstractCegarLoop]: Abstraction has 22125 states and 52253 transitions. [2021-01-20 21:46:43,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:43,545 INFO L276 IsEmpty]: Start isEmpty. Operand 22125 states and 52253 transitions. [2021-01-20 21:46:43,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:46:43,568 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:43,568 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:46:43,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-20 21:46:43,569 INFO L429 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]=== [2021-01-20 21:46:43,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:43,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1475599365, now seen corresponding path program 10 times [2021-01-20 21:46:43,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:43,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353636742] [2021-01-20 21:46:43,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:43,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:44,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:44,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353636742] [2021-01-20 21:46:44,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:44,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:46:44,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525720767] [2021-01-20 21:46:44,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:46:44,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:44,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:46:44,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:46:44,322 INFO L87 Difference]: Start difference. First operand 22125 states and 52253 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:45,505 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-01-20 21:46:45,704 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-01-20 21:46:45,946 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-01-20 21:46:46,582 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2021-01-20 21:46:46,935 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-01-20 21:46:47,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:47,175 INFO L93 Difference]: Finished difference Result 24763 states and 57518 transitions. [2021-01-20 21:46:47,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 21:46:47,176 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:46:47,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:47,178 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 21:46:47,178 INFO L78 Accepts]: Start accepts. Automaton has 24763 states and 57518 transitions. Word has length 109 [2021-01-20 21:46:47,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:47,179 INFO L481 AbstractCegarLoop]: Abstraction has 24763 states and 57518 transitions. [2021-01-20 21:46:47,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:47,179 INFO L276 IsEmpty]: Start isEmpty. Operand 24763 states and 57518 transitions. [2021-01-20 21:46:47,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:46:47,210 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:47,211 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:46:47,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-20 21:46:47,211 INFO L429 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]=== [2021-01-20 21:46:47,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:47,212 INFO L82 PathProgramCache]: Analyzing trace with hash -843484385, now seen corresponding path program 11 times [2021-01-20 21:46:47,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:47,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571982133] [2021-01-20 21:46:47,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:47,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:48,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:48,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571982133] [2021-01-20 21:46:48,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:48,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:46:48,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621771507] [2021-01-20 21:46:48,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:46:48,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:48,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:46:48,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:46:48,028 INFO L87 Difference]: Start difference. First operand 24763 states and 57518 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:49,255 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2021-01-20 21:46:49,426 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:46:49,613 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:46:50,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:50,930 INFO L93 Difference]: Finished difference Result 24759 states and 57514 transitions. [2021-01-20 21:46:50,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 21:46:50,930 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:46:50,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:50,932 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=309, Invalid=881, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 21:46:50,932 INFO L78 Accepts]: Start accepts. Automaton has 24759 states and 57514 transitions. Word has length 109 [2021-01-20 21:46:50,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:50,932 INFO L481 AbstractCegarLoop]: Abstraction has 24759 states and 57514 transitions. [2021-01-20 21:46:50,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:50,933 INFO L276 IsEmpty]: Start isEmpty. Operand 24759 states and 57514 transitions. [2021-01-20 21:46:50,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:46:50,950 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:50,950 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:46:50,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-01-20 21:46:50,950 INFO L429 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]=== [2021-01-20 21:46:50,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:50,951 INFO L82 PathProgramCache]: Analyzing trace with hash -216771827, now seen corresponding path program 12 times [2021-01-20 21:46:50,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:50,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232200231] [2021-01-20 21:46:50,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:51,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:51,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232200231] [2021-01-20 21:46:51,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:51,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:46:51,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699040739] [2021-01-20 21:46:51,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:46:51,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:51,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:46:51,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:46:51,740 INFO L87 Difference]: Start difference. First operand 24759 states and 57514 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:52,733 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:46:52,937 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:46:53,110 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:46:53,712 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2021-01-20 21:46:53,880 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-01-20 21:46:54,440 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:46:54,721 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-01-20 21:46:55,105 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:46:55,382 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 21:46:55,628 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:46:55,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:46:55,967 INFO L93 Difference]: Finished difference Result 25758 states and 59305 transitions. [2021-01-20 21:46:55,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-01-20 21:46:55,968 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:46:55,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:46:55,970 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=536, Invalid=1270, Unknown=0, NotChecked=0, Total=1806 [2021-01-20 21:46:55,970 INFO L78 Accepts]: Start accepts. Automaton has 25758 states and 59305 transitions. Word has length 109 [2021-01-20 21:46:55,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:46:55,970 INFO L481 AbstractCegarLoop]: Abstraction has 25758 states and 59305 transitions. [2021-01-20 21:46:55,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:55,971 INFO L276 IsEmpty]: Start isEmpty. Operand 25758 states and 59305 transitions. [2021-01-20 21:46:55,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:46:55,988 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:46:55,989 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:46:55,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-01-20 21:46:55,989 INFO L429 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]=== [2021-01-20 21:46:55,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:46:55,990 INFO L82 PathProgramCache]: Analyzing trace with hash 428295971, now seen corresponding path program 13 times [2021-01-20 21:46:55,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:46:55,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925436775] [2021-01-20 21:46:55,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:46:56,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:46:56,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:46:56,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925436775] [2021-01-20 21:46:56,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:46:56,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:46:56,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647810835] [2021-01-20 21:46:56,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:46:56,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:46:56,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:46:56,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:46:56,902 INFO L87 Difference]: Start difference. First operand 25758 states and 59305 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:46:57,899 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:46:58,280 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:46:58,855 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 21:46:59,051 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:46:59,233 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 21:46:59,846 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:47:00,137 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-01-20 21:47:00,385 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:47:00,647 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2021-01-20 21:47:00,801 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 21:47:01,043 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:47:01,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:01,389 INFO L93 Difference]: Finished difference Result 25750 states and 59297 transitions. [2021-01-20 21:47:01,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-01-20 21:47:01,390 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:47:01,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:01,392 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=520, Invalid=1372, Unknown=0, NotChecked=0, Total=1892 [2021-01-20 21:47:01,392 INFO L78 Accepts]: Start accepts. Automaton has 25750 states and 59297 transitions. Word has length 109 [2021-01-20 21:47:01,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:01,392 INFO L481 AbstractCegarLoop]: Abstraction has 25750 states and 59297 transitions. [2021-01-20 21:47:01,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:01,393 INFO L276 IsEmpty]: Start isEmpty. Operand 25750 states and 59297 transitions. [2021-01-20 21:47:01,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:47:01,410 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:01,410 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:47:01,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-01-20 21:47:01,410 INFO L429 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]=== [2021-01-20 21:47:01,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:01,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1554043385, now seen corresponding path program 14 times [2021-01-20 21:47:01,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:01,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240099728] [2021-01-20 21:47:01,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:02,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:02,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240099728] [2021-01-20 21:47:02,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:02,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:47:02,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598967613] [2021-01-20 21:47:02,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:47:02,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:02,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:47:02,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:47:02,181 INFO L87 Difference]: Start difference. First operand 25750 states and 59297 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:03,594 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-01-20 21:47:03,863 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 21:47:04,051 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:47:04,228 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 21:47:04,836 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 21:47:04,972 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2021-01-20 21:47:05,120 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:47:05,352 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 21:47:05,724 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:47:06,278 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 31 [2021-01-20 21:47:06,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:06,336 INFO L93 Difference]: Finished difference Result 25742 states and 59289 transitions. [2021-01-20 21:47:06,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-01-20 21:47:06,337 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:47:06,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:06,338 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=488, Invalid=1318, Unknown=0, NotChecked=0, Total=1806 [2021-01-20 21:47:06,339 INFO L78 Accepts]: Start accepts. Automaton has 25742 states and 59289 transitions. Word has length 109 [2021-01-20 21:47:06,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:06,339 INFO L481 AbstractCegarLoop]: Abstraction has 25742 states and 59289 transitions. [2021-01-20 21:47:06,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:06,339 INFO L276 IsEmpty]: Start isEmpty. Operand 25742 states and 59289 transitions. [2021-01-20 21:47:06,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:47:06,367 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:06,367 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:47:06,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-01-20 21:47:06,368 INFO L429 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]=== [2021-01-20 21:47:06,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:06,368 INFO L82 PathProgramCache]: Analyzing trace with hash 724059229, now seen corresponding path program 15 times [2021-01-20 21:47:06,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:06,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385745182] [2021-01-20 21:47:06,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:06,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:07,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:07,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385745182] [2021-01-20 21:47:07,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:07,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:47:07,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498444083] [2021-01-20 21:47:07,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:47:07,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:07,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:47:07,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:47:07,234 INFO L87 Difference]: Start difference. First operand 25742 states and 59289 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:08,862 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 21:47:09,051 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:47:09,221 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 21:47:10,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:10,308 INFO L93 Difference]: Finished difference Result 25757 states and 59304 transitions. [2021-01-20 21:47:10,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-01-20 21:47:10,309 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:47:10,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:10,310 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=333, Invalid=927, Unknown=0, NotChecked=0, Total=1260 [2021-01-20 21:47:10,310 INFO L78 Accepts]: Start accepts. Automaton has 25757 states and 59304 transitions. Word has length 109 [2021-01-20 21:47:10,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:10,311 INFO L481 AbstractCegarLoop]: Abstraction has 25757 states and 59304 transitions. [2021-01-20 21:47:10,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:10,311 INFO L276 IsEmpty]: Start isEmpty. Operand 25757 states and 59304 transitions. [2021-01-20 21:47:10,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:47:10,332 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:10,332 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:47:10,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-01-20 21:47:10,333 INFO L429 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]=== [2021-01-20 21:47:10,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:10,333 INFO L82 PathProgramCache]: Analyzing trace with hash 42705411, now seen corresponding path program 16 times [2021-01-20 21:47:10,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:10,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857117251] [2021-01-20 21:47:10,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:11,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:11,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857117251] [2021-01-20 21:47:11,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:11,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:47:11,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694244880] [2021-01-20 21:47:11,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:47:11,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:11,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:47:11,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:47:11,168 INFO L87 Difference]: Start difference. First operand 25757 states and 59304 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:12,373 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-01-20 21:47:12,553 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-01-20 21:47:12,790 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-01-20 21:47:13,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:13,903 INFO L93 Difference]: Finished difference Result 25793 states and 59340 transitions. [2021-01-20 21:47:13,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 21:47:13,904 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:47:13,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:13,905 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=273, Invalid=849, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 21:47:13,906 INFO L78 Accepts]: Start accepts. Automaton has 25793 states and 59340 transitions. Word has length 109 [2021-01-20 21:47:13,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:13,906 INFO L481 AbstractCegarLoop]: Abstraction has 25793 states and 59340 transitions. [2021-01-20 21:47:13,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:13,906 INFO L276 IsEmpty]: Start isEmpty. Operand 25793 states and 59340 transitions. [2021-01-20 21:47:13,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:47:13,926 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:13,926 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:47:13,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-01-20 21:47:13,926 INFO L429 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]=== [2021-01-20 21:47:13,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:13,927 INFO L82 PathProgramCache]: Analyzing trace with hash 674820391, now seen corresponding path program 17 times [2021-01-20 21:47:13,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:13,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643472773] [2021-01-20 21:47:13,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:14,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:14,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643472773] [2021-01-20 21:47:14,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:14,751 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:47:14,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114588575] [2021-01-20 21:47:14,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:47:14,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:14,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:47:14,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:47:14,753 INFO L87 Difference]: Start difference. First operand 25793 states and 59340 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:16,037 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2021-01-20 21:47:16,249 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:47:16,441 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:47:17,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:17,679 INFO L93 Difference]: Finished difference Result 25829 states and 59376 transitions. [2021-01-20 21:47:17,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 21:47:17,679 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:47:17,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:17,681 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=298, Invalid=892, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 21:47:17,681 INFO L78 Accepts]: Start accepts. Automaton has 25829 states and 59376 transitions. Word has length 109 [2021-01-20 21:47:17,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:17,681 INFO L481 AbstractCegarLoop]: Abstraction has 25829 states and 59376 transitions. [2021-01-20 21:47:17,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:17,682 INFO L276 IsEmpty]: Start isEmpty. Operand 25829 states and 59376 transitions. [2021-01-20 21:47:17,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:47:17,703 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:17,704 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:47:17,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-01-20 21:47:17,704 INFO L429 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]=== [2021-01-20 21:47:17,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:17,704 INFO L82 PathProgramCache]: Analyzing trace with hash 2128428479, now seen corresponding path program 18 times [2021-01-20 21:47:17,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:17,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014017317] [2021-01-20 21:47:17,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:18,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:18,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014017317] [2021-01-20 21:47:18,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:18,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:47:18,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345389463] [2021-01-20 21:47:18,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:47:18,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:18,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:47:18,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:47:18,464 INFO L87 Difference]: Start difference. First operand 25829 states and 59376 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:19,833 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2021-01-20 21:47:20,028 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:47:20,216 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:47:21,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:21,314 INFO L93 Difference]: Finished difference Result 25825 states and 59372 transitions. [2021-01-20 21:47:21,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-01-20 21:47:21,315 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:47:21,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:21,316 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=322, Invalid=938, Unknown=0, NotChecked=0, Total=1260 [2021-01-20 21:47:21,316 INFO L78 Accepts]: Start accepts. Automaton has 25825 states and 59372 transitions. Word has length 109 [2021-01-20 21:47:21,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:21,317 INFO L481 AbstractCegarLoop]: Abstraction has 25825 states and 59372 transitions. [2021-01-20 21:47:21,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:21,317 INFO L276 IsEmpty]: Start isEmpty. Operand 25825 states and 59372 transitions. [2021-01-20 21:47:21,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:47:21,337 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:21,337 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:47:21,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-01-20 21:47:21,337 INFO L429 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]=== [2021-01-20 21:47:21,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:21,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1841603383, now seen corresponding path program 2 times [2021-01-20 21:47:21,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:21,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120846003] [2021-01-20 21:47:21,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:21,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:21,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120846003] [2021-01-20 21:47:21,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:21,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:47:21,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003508009] [2021-01-20 21:47:21,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:47:21,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:21,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:47:21,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:47:21,781 INFO L87 Difference]: Start difference. First operand 25825 states and 59372 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:24,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:24,034 INFO L93 Difference]: Finished difference Result 29550 states and 67652 transitions. [2021-01-20 21:47:24,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:47:24,035 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:47:24,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:24,036 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=530, Invalid=1110, Unknown=0, NotChecked=0, Total=1640 [2021-01-20 21:47:24,036 INFO L78 Accepts]: Start accepts. Automaton has 29550 states and 67652 transitions. Word has length 109 [2021-01-20 21:47:24,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:24,037 INFO L481 AbstractCegarLoop]: Abstraction has 29550 states and 67652 transitions. [2021-01-20 21:47:24,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:24,037 INFO L276 IsEmpty]: Start isEmpty. Operand 29550 states and 67652 transitions. [2021-01-20 21:47:24,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:47:24,058 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:24,058 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:47:24,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-01-20 21:47:24,059 INFO L429 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]=== [2021-01-20 21:47:24,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:24,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1039478255, now seen corresponding path program 19 times [2021-01-20 21:47:24,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:24,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664725410] [2021-01-20 21:47:24,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:24,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:24,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664725410] [2021-01-20 21:47:24,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:24,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:47:24,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090286657] [2021-01-20 21:47:24,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:47:24,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:24,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:47:24,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:47:24,991 INFO L87 Difference]: Start difference. First operand 29550 states and 67652 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:25,725 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-01-20 21:47:25,951 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-01-20 21:47:26,354 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-01-20 21:47:26,674 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2021-01-20 21:47:26,833 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2021-01-20 21:47:26,970 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2021-01-20 21:47:27,130 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-01-20 21:47:27,285 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2021-01-20 21:47:27,468 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2021-01-20 21:47:27,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:27,499 INFO L93 Difference]: Finished difference Result 29724 states and 67958 transitions. [2021-01-20 21:47:27,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-01-20 21:47:27,499 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:47:27,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:27,500 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=309, Invalid=747, Unknown=0, NotChecked=0, Total=1056 [2021-01-20 21:47:27,501 INFO L78 Accepts]: Start accepts. Automaton has 29724 states and 67958 transitions. Word has length 109 [2021-01-20 21:47:27,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:27,501 INFO L481 AbstractCegarLoop]: Abstraction has 29724 states and 67958 transitions. [2021-01-20 21:47:27,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:27,501 INFO L276 IsEmpty]: Start isEmpty. Operand 29724 states and 67958 transitions. [2021-01-20 21:47:27,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:47:27,524 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:27,525 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:47:27,525 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-01-20 21:47:27,525 INFO L429 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]=== [2021-01-20 21:47:27,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:27,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1684546053, now seen corresponding path program 20 times [2021-01-20 21:47:27,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:27,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853071762] [2021-01-20 21:47:27,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:28,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:28,288 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853071762] [2021-01-20 21:47:28,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:28,289 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:47:28,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805616901] [2021-01-20 21:47:28,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:47:28,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:28,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:47:28,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:47:28,291 INFO L87 Difference]: Start difference. First operand 29724 states and 67958 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:29,218 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2021-01-20 21:47:29,470 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2021-01-20 21:47:29,856 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2021-01-20 21:47:30,051 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-01-20 21:47:30,444 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2021-01-20 21:47:30,621 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 21:47:30,774 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2021-01-20 21:47:30,953 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2021-01-20 21:47:31,111 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2021-01-20 21:47:31,288 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2021-01-20 21:47:31,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:31,317 INFO L93 Difference]: Finished difference Result 29720 states and 67954 transitions. [2021-01-20 21:47:31,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 21:47:31,317 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:47:31,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:31,319 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=308, Invalid=814, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 21:47:31,319 INFO L78 Accepts]: Start accepts. Automaton has 29720 states and 67954 transitions. Word has length 109 [2021-01-20 21:47:31,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:31,319 INFO L481 AbstractCegarLoop]: Abstraction has 29720 states and 67954 transitions. [2021-01-20 21:47:31,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:31,320 INFO L276 IsEmpty]: Start isEmpty. Operand 29720 states and 67954 transitions. [2021-01-20 21:47:31,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:47:31,348 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:31,348 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:47:31,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-01-20 21:47:31,349 INFO L429 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]=== [2021-01-20 21:47:31,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:31,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1530843013, now seen corresponding path program 21 times [2021-01-20 21:47:31,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:31,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476372077] [2021-01-20 21:47:31,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:32,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:32,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476372077] [2021-01-20 21:47:32,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:32,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:47:32,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273036937] [2021-01-20 21:47:32,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:47:32,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:32,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:47:32,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:47:32,151 INFO L87 Difference]: Start difference. First operand 29720 states and 67954 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:33,412 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2021-01-20 21:47:33,642 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2021-01-20 21:47:34,215 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2021-01-20 21:47:34,367 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2021-01-20 21:47:34,511 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2021-01-20 21:47:34,739 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2021-01-20 21:47:34,891 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2021-01-20 21:47:35,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:35,131 INFO L93 Difference]: Finished difference Result 29716 states and 67950 transitions. [2021-01-20 21:47:35,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 21:47:35,132 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:47:35,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:35,133 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 21:47:35,133 INFO L78 Accepts]: Start accepts. Automaton has 29716 states and 67950 transitions. Word has length 109 [2021-01-20 21:47:35,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:35,134 INFO L481 AbstractCegarLoop]: Abstraction has 29716 states and 67950 transitions. [2021-01-20 21:47:35,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:35,134 INFO L276 IsEmpty]: Start isEmpty. Operand 29716 states and 67950 transitions. [2021-01-20 21:47:35,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:47:35,152 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:35,152 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:47:35,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-01-20 21:47:35,153 INFO L429 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]=== [2021-01-20 21:47:35,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:35,153 INFO L82 PathProgramCache]: Analyzing trace with hash 226642997, now seen corresponding path program 22 times [2021-01-20 21:47:35,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:35,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389367314] [2021-01-20 21:47:35,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:35,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:35,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389367314] [2021-01-20 21:47:35,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:35,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-01-20 21:47:35,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574759942] [2021-01-20 21:47:35,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-20 21:47:35,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:35,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-20 21:47:35,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:47:35,646 INFO L87 Difference]: Start difference. First operand 29716 states and 67950 transitions. Second operand has 15 states, 15 states have (on average 7.266666666666667) internal successors, (109), 15 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:37,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:37,079 INFO L93 Difference]: Finished difference Result 30050 states and 68426 transitions. [2021-01-20 21:47:37,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-01-20 21:47:37,080 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.266666666666667) internal successors, (109), 15 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:47:37,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:37,081 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-01-20 21:47:37,081 INFO L78 Accepts]: Start accepts. Automaton has 30050 states and 68426 transitions. Word has length 109 [2021-01-20 21:47:37,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:37,082 INFO L481 AbstractCegarLoop]: Abstraction has 30050 states and 68426 transitions. [2021-01-20 21:47:37,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.266666666666667) internal successors, (109), 15 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:37,082 INFO L276 IsEmpty]: Start isEmpty. Operand 30050 states and 68426 transitions. [2021-01-20 21:47:37,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:47:37,105 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:37,105 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:47:37,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-01-20 21:47:37,105 INFO L429 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]=== [2021-01-20 21:47:37,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:37,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1447469441, now seen corresponding path program 23 times [2021-01-20 21:47:37,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:37,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927249120] [2021-01-20 21:47:37,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:37,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:37,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927249120] [2021-01-20 21:47:37,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:37,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:47:37,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396886012] [2021-01-20 21:47:37,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:47:37,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:37,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:47:37,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:47:37,913 INFO L87 Difference]: Start difference. First operand 30050 states and 68426 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:38,429 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2021-01-20 21:47:39,103 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2021-01-20 21:47:39,314 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2021-01-20 21:47:40,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:40,149 INFO L93 Difference]: Finished difference Result 31882 states and 72043 transitions. [2021-01-20 21:47:40,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 21:47:40,150 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:47:40,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:40,152 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 21:47:40,152 INFO L78 Accepts]: Start accepts. Automaton has 31882 states and 72043 transitions. Word has length 109 [2021-01-20 21:47:40,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:40,152 INFO L481 AbstractCegarLoop]: Abstraction has 31882 states and 72043 transitions. [2021-01-20 21:47:40,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:40,153 INFO L276 IsEmpty]: Start isEmpty. Operand 31882 states and 72043 transitions. [2021-01-20 21:47:40,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:47:40,176 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:40,176 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:47:40,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-01-20 21:47:40,177 INFO L429 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]=== [2021-01-20 21:47:40,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:40,177 INFO L82 PathProgramCache]: Analyzing trace with hash -853708361, now seen corresponding path program 3 times [2021-01-20 21:47:40,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:40,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242997740] [2021-01-20 21:47:40,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:40,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:40,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242997740] [2021-01-20 21:47:40,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:40,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:47:40,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704275121] [2021-01-20 21:47:40,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:47:40,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:40,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:47:40,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:47:40,611 INFO L87 Difference]: Start difference. First operand 31882 states and 72043 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:42,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:42,837 INFO L93 Difference]: Finished difference Result 31937 states and 72081 transitions. [2021-01-20 21:47:42,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 21:47:42,837 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:47:42,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:42,839 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=561, Invalid=1161, Unknown=0, NotChecked=0, Total=1722 [2021-01-20 21:47:42,839 INFO L78 Accepts]: Start accepts. Automaton has 31937 states and 72081 transitions. Word has length 109 [2021-01-20 21:47:42,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:42,840 INFO L481 AbstractCegarLoop]: Abstraction has 31937 states and 72081 transitions. [2021-01-20 21:47:42,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:42,840 INFO L276 IsEmpty]: Start isEmpty. Operand 31937 states and 72081 transitions. [2021-01-20 21:47:42,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:47:42,872 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:42,872 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:47:42,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-01-20 21:47:42,873 INFO L429 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]=== [2021-01-20 21:47:42,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:42,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1655833489, now seen corresponding path program 24 times [2021-01-20 21:47:42,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:42,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145704832] [2021-01-20 21:47:42,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:42,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:43,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:43,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145704832] [2021-01-20 21:47:43,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:43,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:47:43,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285695168] [2021-01-20 21:47:43,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:47:43,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:43,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:47:43,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:47:43,898 INFO L87 Difference]: Start difference. First operand 31937 states and 72081 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:44,700 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2021-01-20 21:47:44,948 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2021-01-20 21:47:45,369 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2021-01-20 21:47:45,734 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-01-20 21:47:45,894 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2021-01-20 21:47:46,035 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-01-20 21:47:46,205 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-01-20 21:47:46,349 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2021-01-20 21:47:46,524 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2021-01-20 21:47:46,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:46,555 INFO L93 Difference]: Finished difference Result 35334 states and 79969 transitions. [2021-01-20 21:47:46,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-01-20 21:47:46,556 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:47:46,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:46,558 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=308, Invalid=748, Unknown=0, NotChecked=0, Total=1056 [2021-01-20 21:47:46,558 INFO L78 Accepts]: Start accepts. Automaton has 35334 states and 79969 transitions. Word has length 109 [2021-01-20 21:47:46,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:46,558 INFO L481 AbstractCegarLoop]: Abstraction has 35334 states and 79969 transitions. [2021-01-20 21:47:46,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:46,558 INFO L276 IsEmpty]: Start isEmpty. Operand 35334 states and 79969 transitions. [2021-01-20 21:47:46,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:47:46,584 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:46,585 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:47:46,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-01-20 21:47:46,585 INFO L429 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]=== [2021-01-20 21:47:46,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:46,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1010765691, now seen corresponding path program 25 times [2021-01-20 21:47:46,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:46,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299979593] [2021-01-20 21:47:46,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:47,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:47,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299979593] [2021-01-20 21:47:47,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:47,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:47:47,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955763027] [2021-01-20 21:47:47,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:47:47,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:47,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:47:47,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:47:47,335 INFO L87 Difference]: Start difference. First operand 35334 states and 79969 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:47,685 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2021-01-20 21:47:48,284 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2021-01-20 21:47:48,494 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2021-01-20 21:47:48,816 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2021-01-20 21:47:49,347 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2021-01-20 21:47:49,571 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-01-20 21:47:50,115 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-01-20 21:47:50,298 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-01-20 21:47:50,463 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2021-01-20 21:47:50,650 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-01-20 21:47:50,814 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2021-01-20 21:47:51,010 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2021-01-20 21:47:51,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:51,050 INFO L93 Difference]: Finished difference Result 35384 states and 80019 transitions. [2021-01-20 21:47:51,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 21:47:51,051 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:47:51,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:51,052 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=307, Invalid=815, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 21:47:51,053 INFO L78 Accepts]: Start accepts. Automaton has 35384 states and 80019 transitions. Word has length 109 [2021-01-20 21:47:51,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:51,053 INFO L481 AbstractCegarLoop]: Abstraction has 35384 states and 80019 transitions. [2021-01-20 21:47:51,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:51,054 INFO L276 IsEmpty]: Start isEmpty. Operand 35384 states and 80019 transitions. [2021-01-20 21:47:51,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:47:51,099 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:51,100 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:47:51,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-01-20 21:47:51,100 INFO L429 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]=== [2021-01-20 21:47:51,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:51,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1164468731, now seen corresponding path program 26 times [2021-01-20 21:47:51,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:51,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891574846] [2021-01-20 21:47:51,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:52,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:52,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891574846] [2021-01-20 21:47:52,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:52,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:47:52,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779123156] [2021-01-20 21:47:52,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:47:52,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:52,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:47:52,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:47:52,137 INFO L87 Difference]: Start difference. First operand 35384 states and 80019 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:53,344 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-01-20 21:47:53,542 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-01-20 21:47:54,162 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-01-20 21:47:54,310 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-01-20 21:47:54,538 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-01-20 21:47:54,690 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-01-20 21:47:54,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:54,925 INFO L93 Difference]: Finished difference Result 35380 states and 80015 transitions. [2021-01-20 21:47:54,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 21:47:54,925 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:47:54,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:54,927 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=296, Invalid=826, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 21:47:54,927 INFO L78 Accepts]: Start accepts. Automaton has 35380 states and 80015 transitions. Word has length 109 [2021-01-20 21:47:54,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:54,927 INFO L481 AbstractCegarLoop]: Abstraction has 35380 states and 80015 transitions. [2021-01-20 21:47:54,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:54,928 INFO L276 IsEmpty]: Start isEmpty. Operand 35380 states and 80015 transitions. [2021-01-20 21:47:54,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:47:54,955 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:54,955 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:47:54,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-01-20 21:47:54,955 INFO L429 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]=== [2021-01-20 21:47:54,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:54,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1904380469, now seen corresponding path program 27 times [2021-01-20 21:47:54,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:54,956 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55684038] [2021-01-20 21:47:54,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:47:55,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:47:55,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55684038] [2021-01-20 21:47:55,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:47:55,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:47:55,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453991577] [2021-01-20 21:47:55,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:47:55,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:47:55,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:47:55,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:47:55,686 INFO L87 Difference]: Start difference. First operand 35380 states and 80015 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:56,550 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:47:56,743 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:47:56,909 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:47:57,346 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2021-01-20 21:47:57,508 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-01-20 21:47:57,963 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 21:47:58,137 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:47:58,291 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:47:58,454 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-01-20 21:47:58,585 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 21:47:58,881 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:47:59,036 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:47:59,189 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 21:47:59,458 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:47:59,765 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:47:59,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:47:59,819 INFO L93 Difference]: Finished difference Result 35738 states and 80635 transitions. [2021-01-20 21:47:59,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 21:47:59,820 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:47:59,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:47:59,822 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=496, Invalid=1144, Unknown=0, NotChecked=0, Total=1640 [2021-01-20 21:47:59,822 INFO L78 Accepts]: Start accepts. Automaton has 35738 states and 80635 transitions. Word has length 109 [2021-01-20 21:47:59,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:47:59,823 INFO L481 AbstractCegarLoop]: Abstraction has 35738 states and 80635 transitions. [2021-01-20 21:47:59,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:47:59,823 INFO L276 IsEmpty]: Start isEmpty. Operand 35738 states and 80635 transitions. [2021-01-20 21:47:59,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:47:59,845 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:47:59,845 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:47:59,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-01-20 21:47:59,845 INFO L429 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]=== [2021-01-20 21:47:59,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:47:59,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1259312671, now seen corresponding path program 28 times [2021-01-20 21:47:59,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:47:59,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385162352] [2021-01-20 21:47:59,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:47:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:00,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:00,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385162352] [2021-01-20 21:48:00,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:00,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:48:00,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451936125] [2021-01-20 21:48:00,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:48:00,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:00,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:48:00,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:48:00,603 INFO L87 Difference]: Start difference. First operand 35738 states and 80635 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:01,585 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:48:01,816 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:48:02,004 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:48:02,571 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 21:48:02,749 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:48:02,917 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 21:48:03,462 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 21:48:03,626 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:48:03,921 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:48:04,092 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-01-20 21:48:04,220 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 21:48:04,366 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:48:04,529 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:48:04,686 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 21:48:04,967 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:48:05,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:05,356 INFO L93 Difference]: Finished difference Result 35734 states and 80631 transitions. [2021-01-20 21:48:05,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-01-20 21:48:05,357 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:48:05,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:05,358 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=483, Invalid=1239, Unknown=0, NotChecked=0, Total=1722 [2021-01-20 21:48:05,359 INFO L78 Accepts]: Start accepts. Automaton has 35734 states and 80631 transitions. Word has length 109 [2021-01-20 21:48:05,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:05,360 INFO L481 AbstractCegarLoop]: Abstraction has 35734 states and 80631 transitions. [2021-01-20 21:48:05,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:05,360 INFO L276 IsEmpty]: Start isEmpty. Operand 35734 states and 80631 transitions. [2021-01-20 21:48:05,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:48:05,392 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:05,392 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:48:05,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-01-20 21:48:05,393 INFO L429 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]=== [2021-01-20 21:48:05,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:05,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1053315269, now seen corresponding path program 29 times [2021-01-20 21:48:05,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:05,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209415631] [2021-01-20 21:48:05,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:06,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:06,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209415631] [2021-01-20 21:48:06,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:06,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:48:06,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34779432] [2021-01-20 21:48:06,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:48:06,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:06,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:48:06,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:48:06,168 INFO L87 Difference]: Start difference. First operand 35734 states and 80631 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:07,208 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:48:07,643 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-01-20 21:48:07,810 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 21:48:07,985 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:48:08,165 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 21:48:08,722 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 21:48:08,875 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:48:09,139 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 21:48:09,400 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:48:09,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:09,642 INFO L93 Difference]: Finished difference Result 35730 states and 80627 transitions. [2021-01-20 21:48:09,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 21:48:09,643 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:48:09,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:09,644 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=321, Invalid=869, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 21:48:09,645 INFO L78 Accepts]: Start accepts. Automaton has 35730 states and 80627 transitions. Word has length 109 [2021-01-20 21:48:09,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:09,645 INFO L481 AbstractCegarLoop]: Abstraction has 35730 states and 80627 transitions. [2021-01-20 21:48:09,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:09,645 INFO L276 IsEmpty]: Start isEmpty. Operand 35730 states and 80627 transitions. [2021-01-20 21:48:09,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:48:09,667 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:09,667 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:48:09,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-01-20 21:48:09,667 INFO L429 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]=== [2021-01-20 21:48:09,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:09,668 INFO L82 PathProgramCache]: Analyzing trace with hash -581811171, now seen corresponding path program 30 times [2021-01-20 21:48:09,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:09,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328107676] [2021-01-20 21:48:09,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:10,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:10,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328107676] [2021-01-20 21:48:10,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:10,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:48:10,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443685359] [2021-01-20 21:48:10,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:48:10,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:10,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:48:10,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:48:10,456 INFO L87 Difference]: Start difference. First operand 35730 states and 80627 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:11,631 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-01-20 21:48:11,854 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-01-20 21:48:12,545 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2021-01-20 21:48:13,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:13,115 INFO L93 Difference]: Finished difference Result 35766 states and 80663 transitions. [2021-01-20 21:48:13,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 21:48:13,116 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:48:13,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:13,117 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=285, Invalid=837, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 21:48:13,117 INFO L78 Accepts]: Start accepts. Automaton has 35766 states and 80663 transitions. Word has length 109 [2021-01-20 21:48:13,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:13,118 INFO L481 AbstractCegarLoop]: Abstraction has 35766 states and 80663 transitions. [2021-01-20 21:48:13,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:13,118 INFO L276 IsEmpty]: Start isEmpty. Operand 35766 states and 80663 transitions. [2021-01-20 21:48:13,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:48:13,143 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:13,144 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:48:13,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-01-20 21:48:13,144 INFO L429 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]=== [2021-01-20 21:48:13,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:13,144 INFO L82 PathProgramCache]: Analyzing trace with hash 50303809, now seen corresponding path program 31 times [2021-01-20 21:48:13,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:13,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116492869] [2021-01-20 21:48:13,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:14,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:14,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116492869] [2021-01-20 21:48:14,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:14,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:48:14,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258215314] [2021-01-20 21:48:14,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:48:14,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:14,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:48:14,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:48:14,044 INFO L87 Difference]: Start difference. First operand 35766 states and 80663 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:15,136 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2021-01-20 21:48:15,311 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2021-01-20 21:48:15,501 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:48:15,696 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:48:16,466 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2021-01-20 21:48:17,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:17,060 INFO L93 Difference]: Finished difference Result 35762 states and 80659 transitions. [2021-01-20 21:48:17,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 21:48:17,061 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:48:17,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:17,062 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 21:48:17,062 INFO L78 Accepts]: Start accepts. Automaton has 35762 states and 80659 transitions. Word has length 109 [2021-01-20 21:48:17,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:17,062 INFO L481 AbstractCegarLoop]: Abstraction has 35762 states and 80659 transitions. [2021-01-20 21:48:17,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:17,063 INFO L276 IsEmpty]: Start isEmpty. Operand 35762 states and 80659 transitions. [2021-01-20 21:48:17,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:48:17,096 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:17,096 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:48:17,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-01-20 21:48:17,097 INFO L429 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]=== [2021-01-20 21:48:17,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:17,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1085951995, now seen corresponding path program 32 times [2021-01-20 21:48:17,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:17,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114877889] [2021-01-20 21:48:17,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:18,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:18,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114877889] [2021-01-20 21:48:18,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:18,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:48:18,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782701191] [2021-01-20 21:48:18,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:48:18,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:18,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:48:18,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:48:18,093 INFO L87 Difference]: Start difference. First operand 35762 states and 80659 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:19,015 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2021-01-20 21:48:19,202 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2021-01-20 21:48:19,455 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2021-01-20 21:48:20,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:20,551 INFO L93 Difference]: Finished difference Result 37476 states and 84077 transitions. [2021-01-20 21:48:20,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 21:48:20,552 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:48:20,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:20,553 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 21:48:20,553 INFO L78 Accepts]: Start accepts. Automaton has 37476 states and 84077 transitions. Word has length 109 [2021-01-20 21:48:20,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:20,554 INFO L481 AbstractCegarLoop]: Abstraction has 37476 states and 84077 transitions. [2021-01-20 21:48:20,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:20,554 INFO L276 IsEmpty]: Start isEmpty. Operand 37476 states and 84077 transitions. [2021-01-20 21:48:20,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:48:20,578 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:20,579 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:48:20,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-01-20 21:48:20,579 INFO L429 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]=== [2021-01-20 21:48:20,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:20,579 INFO L82 PathProgramCache]: Analyzing trace with hash -428295709, now seen corresponding path program 33 times [2021-01-20 21:48:20,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:20,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295153833] [2021-01-20 21:48:20,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:20,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:21,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:21,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295153833] [2021-01-20 21:48:21,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:21,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:48:21,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363046387] [2021-01-20 21:48:21,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:48:21,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:21,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:48:21,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:48:21,374 INFO L87 Difference]: Start difference. First operand 37476 states and 84077 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:22,477 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-01-20 21:48:22,711 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-01-20 21:48:23,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:23,589 INFO L93 Difference]: Finished difference Result 37512 states and 84113 transitions. [2021-01-20 21:48:23,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 21:48:23,590 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:48:23,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:23,591 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 21:48:23,591 INFO L78 Accepts]: Start accepts. Automaton has 37512 states and 84113 transitions. Word has length 109 [2021-01-20 21:48:23,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:23,592 INFO L481 AbstractCegarLoop]: Abstraction has 37512 states and 84113 transitions. [2021-01-20 21:48:23,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:23,592 INFO L276 IsEmpty]: Start isEmpty. Operand 37512 states and 84113 transitions. [2021-01-20 21:48:23,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:48:23,618 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:23,618 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:48:23,618 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-01-20 21:48:23,618 INFO L429 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]=== [2021-01-20 21:48:23,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:23,618 INFO L82 PathProgramCache]: Analyzing trace with hash 203819271, now seen corresponding path program 34 times [2021-01-20 21:48:23,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:23,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150631341] [2021-01-20 21:48:23,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:24,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:24,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150631341] [2021-01-20 21:48:24,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:24,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:48:24,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576812721] [2021-01-20 21:48:24,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:48:24,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:24,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:48:24,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:48:24,668 INFO L87 Difference]: Start difference. First operand 37512 states and 84113 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:25,577 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2021-01-20 21:48:25,746 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2021-01-20 21:48:25,935 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:48:26,114 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:48:27,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:27,014 INFO L93 Difference]: Finished difference Result 37508 states and 84109 transitions. [2021-01-20 21:48:27,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 21:48:27,015 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:48:27,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:27,016 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 21:48:27,016 INFO L78 Accepts]: Start accepts. Automaton has 37508 states and 84109 transitions. Word has length 109 [2021-01-20 21:48:27,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:27,016 INFO L481 AbstractCegarLoop]: Abstraction has 37508 states and 84109 transitions. [2021-01-20 21:48:27,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:27,016 INFO L276 IsEmpty]: Start isEmpty. Operand 37508 states and 84109 transitions. [2021-01-20 21:48:27,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:48:27,043 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:27,043 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:48:27,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-01-20 21:48:27,043 INFO L429 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]=== [2021-01-20 21:48:27,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:27,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1263144195, now seen corresponding path program 35 times [2021-01-20 21:48:27,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:27,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281720159] [2021-01-20 21:48:27,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:27,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:27,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281720159] [2021-01-20 21:48:27,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:27,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:48:27,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451165182] [2021-01-20 21:48:27,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:48:27,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:27,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:48:27,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:48:27,865 INFO L87 Difference]: Start difference. First operand 37508 states and 84109 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:29,020 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2021-01-20 21:48:29,234 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2021-01-20 21:48:29,526 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2021-01-20 21:48:30,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:30,348 INFO L93 Difference]: Finished difference Result 37504 states and 84105 transitions. [2021-01-20 21:48:30,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 21:48:30,349 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:48:30,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:30,350 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 21:48:30,351 INFO L78 Accepts]: Start accepts. Automaton has 37504 states and 84105 transitions. Word has length 109 [2021-01-20 21:48:30,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:30,351 INFO L481 AbstractCegarLoop]: Abstraction has 37504 states and 84105 transitions. [2021-01-20 21:48:30,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:30,351 INFO L276 IsEmpty]: Start isEmpty. Operand 37504 states and 84105 transitions. [2021-01-20 21:48:30,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:48:30,377 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:30,377 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:48:30,378 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-01-20 21:48:30,378 INFO L429 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]=== [2021-01-20 21:48:30,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:30,378 INFO L82 PathProgramCache]: Analyzing trace with hash -605487909, now seen corresponding path program 36 times [2021-01-20 21:48:30,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:30,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196701511] [2021-01-20 21:48:30,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:31,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:31,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196701511] [2021-01-20 21:48:31,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:31,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:48:31,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876364637] [2021-01-20 21:48:31,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:48:31,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:31,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:48:31,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:48:31,160 INFO L87 Difference]: Start difference. First operand 37504 states and 84105 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:32,100 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-01-20 21:48:32,307 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-01-20 21:48:32,589 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-01-20 21:48:33,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:33,680 INFO L93 Difference]: Finished difference Result 37540 states and 84141 transitions. [2021-01-20 21:48:33,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 21:48:33,681 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:48:33,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:33,682 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 21:48:33,682 INFO L78 Accepts]: Start accepts. Automaton has 37540 states and 84141 transitions. Word has length 109 [2021-01-20 21:48:33,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:33,682 INFO L481 AbstractCegarLoop]: Abstraction has 37540 states and 84141 transitions. [2021-01-20 21:48:33,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:33,683 INFO L276 IsEmpty]: Start isEmpty. Operand 37540 states and 84141 transitions. [2021-01-20 21:48:33,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:48:33,705 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:33,705 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:48:33,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-01-20 21:48:33,705 INFO L429 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]=== [2021-01-20 21:48:33,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:33,706 INFO L82 PathProgramCache]: Analyzing trace with hash 26627071, now seen corresponding path program 37 times [2021-01-20 21:48:33,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:33,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16814330] [2021-01-20 21:48:33,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:34,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:34,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16814330] [2021-01-20 21:48:34,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:34,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:48:34,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327411673] [2021-01-20 21:48:34,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:48:34,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:34,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:48:34,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:48:34,498 INFO L87 Difference]: Start difference. First operand 37540 states and 84141 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:35,432 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2021-01-20 21:48:35,611 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2021-01-20 21:48:35,817 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:48:36,003 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:48:37,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:37,128 INFO L93 Difference]: Finished difference Result 37536 states and 84137 transitions. [2021-01-20 21:48:37,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 21:48:37,129 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:48:37,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:37,130 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=288, Invalid=902, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 21:48:37,130 INFO L78 Accepts]: Start accepts. Automaton has 37536 states and 84137 transitions. Word has length 109 [2021-01-20 21:48:37,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:37,131 INFO L481 AbstractCegarLoop]: Abstraction has 37536 states and 84137 transitions. [2021-01-20 21:48:37,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:37,131 INFO L276 IsEmpty]: Start isEmpty. Operand 37536 states and 84137 transitions. [2021-01-20 21:48:37,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:48:37,163 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:37,163 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:48:37,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-01-20 21:48:37,164 INFO L429 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]=== [2021-01-20 21:48:37,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:37,164 INFO L82 PathProgramCache]: Analyzing trace with hash 608962849, now seen corresponding path program 38 times [2021-01-20 21:48:37,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:37,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978959886] [2021-01-20 21:48:37,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:37,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:38,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:38,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978959886] [2021-01-20 21:48:38,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:38,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:48:38,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453392646] [2021-01-20 21:48:38,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:48:38,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:38,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:48:38,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:48:38,056 INFO L87 Difference]: Start difference. First operand 37536 states and 84137 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:39,114 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-01-20 21:48:39,326 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-01-20 21:48:39,608 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-01-20 21:48:40,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:40,525 INFO L93 Difference]: Finished difference Result 37572 states and 84173 transitions. [2021-01-20 21:48:40,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 21:48:40,526 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:48:40,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:40,527 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 21:48:40,527 INFO L78 Accepts]: Start accepts. Automaton has 37572 states and 84173 transitions. Word has length 109 [2021-01-20 21:48:40,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:40,528 INFO L481 AbstractCegarLoop]: Abstraction has 37572 states and 84173 transitions. [2021-01-20 21:48:40,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:40,528 INFO L276 IsEmpty]: Start isEmpty. Operand 37572 states and 84173 transitions. [2021-01-20 21:48:40,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:48:40,557 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:40,557 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:48:40,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-01-20 21:48:40,557 INFO L429 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]=== [2021-01-20 21:48:40,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:40,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1241077829, now seen corresponding path program 39 times [2021-01-20 21:48:40,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:40,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031976856] [2021-01-20 21:48:40,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:41,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:41,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031976856] [2021-01-20 21:48:41,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:41,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:48:41,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235188107] [2021-01-20 21:48:41,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:48:41,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:41,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:48:41,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:48:41,381 INFO L87 Difference]: Start difference. First operand 37572 states and 84173 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:42,484 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2021-01-20 21:48:42,679 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2021-01-20 21:48:42,921 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:48:43,129 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:48:44,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:44,156 INFO L93 Difference]: Finished difference Result 37608 states and 84209 transitions. [2021-01-20 21:48:44,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 21:48:44,156 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:48:44,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:44,157 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 21:48:44,157 INFO L78 Accepts]: Start accepts. Automaton has 37608 states and 84209 transitions. Word has length 109 [2021-01-20 21:48:44,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:44,158 INFO L481 AbstractCegarLoop]: Abstraction has 37608 states and 84209 transitions. [2021-01-20 21:48:44,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:44,158 INFO L276 IsEmpty]: Start isEmpty. Operand 37608 states and 84209 transitions. [2021-01-20 21:48:44,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-01-20 21:48:44,188 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:44,188 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:48:44,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-01-20 21:48:44,188 INFO L429 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]=== [2021-01-20 21:48:44,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:44,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1600281379, now seen corresponding path program 40 times [2021-01-20 21:48:44,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:44,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369837398] [2021-01-20 21:48:44,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:44,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:44,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369837398] [2021-01-20 21:48:44,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:44,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 21:48:44,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992449943] [2021-01-20 21:48:44,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 21:48:44,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:44,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 21:48:44,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-01-20 21:48:44,978 INFO L87 Difference]: Start difference. First operand 37608 states and 84209 transitions. Second operand has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:46,141 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2021-01-20 21:48:46,453 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2021-01-20 21:48:46,678 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:48:46,877 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:48:47,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:47,775 INFO L93 Difference]: Finished difference Result 37604 states and 84205 transitions. [2021-01-20 21:48:47,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-01-20 21:48:47,776 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2021-01-20 21:48:47,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:47,777 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=311, Invalid=949, Unknown=0, NotChecked=0, Total=1260 [2021-01-20 21:48:47,777 INFO L78 Accepts]: Start accepts. Automaton has 37604 states and 84205 transitions. Word has length 109 [2021-01-20 21:48:47,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:47,778 INFO L481 AbstractCegarLoop]: Abstraction has 37604 states and 84205 transitions. [2021-01-20 21:48:47,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.055555555555555) internal successors, (109), 18 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:47,778 INFO L276 IsEmpty]: Start isEmpty. Operand 37604 states and 84205 transitions. [2021-01-20 21:48:47,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:48:47,805 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:47,805 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:48:47,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-01-20 21:48:47,805 INFO L429 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]=== [2021-01-20 21:48:47,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:47,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1698704721, now seen corresponding path program 1 times [2021-01-20 21:48:47,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:47,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593450369] [2021-01-20 21:48:47,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:48,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:48,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593450369] [2021-01-20 21:48:48,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:48,298 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-01-20 21:48:48,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510664872] [2021-01-20 21:48:48,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-20 21:48:48,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:48,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-20 21:48:48,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:48:48,299 INFO L87 Difference]: Start difference. First operand 37604 states and 84205 transitions. Second operand has 15 states, 15 states have (on average 7.666666666666667) internal successors, (115), 15 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:49,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:49,741 INFO L93 Difference]: Finished difference Result 40706 states and 91213 transitions. [2021-01-20 21:48:49,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-01-20 21:48:49,741 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.666666666666667) internal successors, (115), 15 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:48:49,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:49,742 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 21:48:49,742 INFO L78 Accepts]: Start accepts. Automaton has 40706 states and 91213 transitions. Word has length 115 [2021-01-20 21:48:49,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:49,743 INFO L481 AbstractCegarLoop]: Abstraction has 40706 states and 91213 transitions. [2021-01-20 21:48:49,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.666666666666667) internal successors, (115), 15 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:49,743 INFO L276 IsEmpty]: Start isEmpty. Operand 40706 states and 91213 transitions. [2021-01-20 21:48:49,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:48:49,780 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:49,780 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:48:49,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-01-20 21:48:49,780 INFO L429 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]=== [2021-01-20 21:48:49,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:49,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1397835533, now seen corresponding path program 2 times [2021-01-20 21:48:49,781 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:49,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553689719] [2021-01-20 21:48:49,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:51,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:48:51,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553689719] [2021-01-20 21:48:51,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:48:51,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:48:51,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190722098] [2021-01-20 21:48:51,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:48:51,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:48:51,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:48:51,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:48:51,772 INFO L87 Difference]: Start difference. First operand 40706 states and 91213 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:52,887 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:48:53,440 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:48:53,676 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-01-20 21:48:54,089 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2021-01-20 21:48:54,626 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-01-20 21:48:54,878 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:48:55,060 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:48:55,489 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 21:48:55,832 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:48:56,008 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:48:56,347 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:48:56,931 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 21:48:57,095 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:48:57,263 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:48:59,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:48:59,004 INFO L93 Difference]: Finished difference Result 43983 states and 98371 transitions. [2021-01-20 21:48:59,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-01-20 21:48:59,005 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:48:59,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:48:59,006 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=717, Invalid=3189, Unknown=0, NotChecked=0, Total=3906 [2021-01-20 21:48:59,006 INFO L78 Accepts]: Start accepts. Automaton has 43983 states and 98371 transitions. Word has length 115 [2021-01-20 21:48:59,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:48:59,006 INFO L481 AbstractCegarLoop]: Abstraction has 43983 states and 98371 transitions. [2021-01-20 21:48:59,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:48:59,006 INFO L276 IsEmpty]: Start isEmpty. Operand 43983 states and 98371 transitions. [2021-01-20 21:48:59,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:48:59,039 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:48:59,039 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:48:59,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-01-20 21:48:59,040 INFO L429 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]=== [2021-01-20 21:48:59,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:48:59,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1685331195, now seen corresponding path program 3 times [2021-01-20 21:48:59,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:48:59,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114098577] [2021-01-20 21:48:59,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:48:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:48:59,645 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 30 [2021-01-20 21:49:01,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:49:01,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114098577] [2021-01-20 21:49:01,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:49:01,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:49:01,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178154332] [2021-01-20 21:49:01,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:49:01,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:49:01,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:49:01,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:49:01,010 INFO L87 Difference]: Start difference. First operand 43983 states and 98371 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:02,106 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:49:02,644 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:49:02,883 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-01-20 21:49:03,175 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2021-01-20 21:49:03,705 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-01-20 21:49:03,951 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:49:04,141 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:49:04,576 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 21:49:04,920 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:49:05,100 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:49:05,303 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:49:05,451 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:49:05,673 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-01-20 21:49:06,125 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-01-20 21:49:06,314 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:49:06,503 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:49:06,702 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-01-20 21:49:06,884 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:49:08,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:49:08,675 INFO L93 Difference]: Finished difference Result 44327 states and 98963 transitions. [2021-01-20 21:49:08,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-01-20 21:49:08,676 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:49:08,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:49:08,677 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 914 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=750, Invalid=3410, Unknown=0, NotChecked=0, Total=4160 [2021-01-20 21:49:08,677 INFO L78 Accepts]: Start accepts. Automaton has 44327 states and 98963 transitions. Word has length 115 [2021-01-20 21:49:08,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:49:08,678 INFO L481 AbstractCegarLoop]: Abstraction has 44327 states and 98963 transitions. [2021-01-20 21:49:08,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:08,678 INFO L276 IsEmpty]: Start isEmpty. Operand 44327 states and 98963 transitions. [2021-01-20 21:49:08,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:49:08,709 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:49:08,709 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:49:08,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-01-20 21:49:08,709 INFO L429 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]=== [2021-01-20 21:49:08,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:49:08,709 INFO L82 PathProgramCache]: Analyzing trace with hash 488327277, now seen corresponding path program 4 times [2021-01-20 21:49:08,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:49:08,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509754963] [2021-01-20 21:49:08,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:49:08,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:49:10,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:49:10,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509754963] [2021-01-20 21:49:10,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:49:10,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:49:10,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852924239] [2021-01-20 21:49:10,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:49:10,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:49:10,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:49:10,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:49:10,592 INFO L87 Difference]: Start difference. First operand 44327 states and 98963 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:11,270 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2021-01-20 21:49:11,779 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:49:12,290 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:49:12,525 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-01-20 21:49:12,830 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2021-01-20 21:49:13,336 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-01-20 21:49:13,582 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:49:13,761 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:49:14,578 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2021-01-20 21:49:14,751 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2021-01-20 21:49:15,073 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 21:49:15,256 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2021-01-20 21:49:15,484 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:49:15,648 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-01-20 21:49:15,812 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:49:18,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:49:18,285 INFO L93 Difference]: Finished difference Result 45026 states and 100164 transitions. [2021-01-20 21:49:18,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-01-20 21:49:18,289 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:49:18,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:49:18,289 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 853 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=677, Invalid=3229, Unknown=0, NotChecked=0, Total=3906 [2021-01-20 21:49:18,290 INFO L78 Accepts]: Start accepts. Automaton has 45026 states and 100164 transitions. Word has length 115 [2021-01-20 21:49:18,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:49:18,290 INFO L481 AbstractCegarLoop]: Abstraction has 45026 states and 100164 transitions. [2021-01-20 21:49:18,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:18,290 INFO L276 IsEmpty]: Start isEmpty. Operand 45026 states and 100164 transitions. [2021-01-20 21:49:18,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:49:18,315 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:49:18,315 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:49:18,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-01-20 21:49:18,316 INFO L429 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]=== [2021-01-20 21:49:18,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:49:18,316 INFO L82 PathProgramCache]: Analyzing trace with hash 305954835, now seen corresponding path program 5 times [2021-01-20 21:49:18,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:49:18,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422987866] [2021-01-20 21:49:18,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:49:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:49:20,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:49:20,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422987866] [2021-01-20 21:49:20,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:49:20,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:49:20,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957342254] [2021-01-20 21:49:20,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:49:20,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:49:20,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:49:20,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:49:20,132 INFO L87 Difference]: Start difference. First operand 45026 states and 100164 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:21,210 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:49:21,741 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:49:21,981 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-01-20 21:49:22,267 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2021-01-20 21:49:22,781 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-01-20 21:49:23,750 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-01-20 21:49:23,904 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:49:24,087 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:49:24,587 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-01-20 21:49:24,763 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:49:24,960 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2021-01-20 21:49:25,148 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:49:25,321 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:49:27,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:49:27,182 INFO L93 Difference]: Finished difference Result 46092 states and 102089 transitions. [2021-01-20 21:49:27,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-01-20 21:49:27,183 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:49:27,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:49:27,184 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 746 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=663, Invalid=2997, Unknown=0, NotChecked=0, Total=3660 [2021-01-20 21:49:27,184 INFO L78 Accepts]: Start accepts. Automaton has 46092 states and 102089 transitions. Word has length 115 [2021-01-20 21:49:27,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:49:27,184 INFO L481 AbstractCegarLoop]: Abstraction has 46092 states and 102089 transitions. [2021-01-20 21:49:27,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:27,185 INFO L276 IsEmpty]: Start isEmpty. Operand 46092 states and 102089 transitions. [2021-01-20 21:49:27,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:49:27,217 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:49:27,217 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:49:27,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-01-20 21:49:27,217 INFO L429 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]=== [2021-01-20 21:49:27,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:49:27,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1137774965, now seen corresponding path program 6 times [2021-01-20 21:49:27,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:49:27,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724386151] [2021-01-20 21:49:27,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:49:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:49:29,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:49:29,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724386151] [2021-01-20 21:49:29,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:49:29,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:49:29,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108471838] [2021-01-20 21:49:29,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:49:29,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:49:29,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:49:29,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:49:29,033 INFO L87 Difference]: Start difference. First operand 46092 states and 102089 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:29,848 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2021-01-20 21:49:30,024 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:49:30,249 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:49:30,792 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:49:31,055 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-01-20 21:49:31,352 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2021-01-20 21:49:32,194 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-01-20 21:49:32,527 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-01-20 21:49:32,735 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:49:33,170 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:49:33,346 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-01-20 21:49:33,524 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:49:33,721 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2021-01-20 21:49:33,901 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:49:34,074 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:49:35,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:49:35,962 INFO L93 Difference]: Finished difference Result 46492 states and 102632 transitions. [2021-01-20 21:49:35,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-01-20 21:49:35,963 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:49:35,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:49:35,964 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 718 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=635, Invalid=2905, Unknown=0, NotChecked=0, Total=3540 [2021-01-20 21:49:35,964 INFO L78 Accepts]: Start accepts. Automaton has 46492 states and 102632 transitions. Word has length 115 [2021-01-20 21:49:35,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:49:35,965 INFO L481 AbstractCegarLoop]: Abstraction has 46492 states and 102632 transitions. [2021-01-20 21:49:35,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:35,965 INFO L276 IsEmpty]: Start isEmpty. Operand 46492 states and 102632 transitions. [2021-01-20 21:49:36,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:49:36,013 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:49:36,013 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:49:36,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-01-20 21:49:36,013 INFO L429 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]=== [2021-01-20 21:49:36,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:49:36,014 INFO L82 PathProgramCache]: Analyzing trace with hash -2054582485, now seen corresponding path program 7 times [2021-01-20 21:49:36,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:49:36,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75926965] [2021-01-20 21:49:36,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:49:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:49:38,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:49:38,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75926965] [2021-01-20 21:49:38,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:49:38,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:49:38,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216389297] [2021-01-20 21:49:38,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:49:38,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:49:38,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:49:38,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:49:38,277 INFO L87 Difference]: Start difference. First operand 46492 states and 102632 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:39,133 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:49:39,372 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:49:39,899 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:49:40,140 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-01-20 21:49:40,582 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-01-20 21:49:40,897 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-01-20 21:49:41,056 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:49:41,289 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-01-20 21:49:41,461 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-01-20 21:49:41,626 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:49:42,202 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:49:42,376 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:49:42,871 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:49:44,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:49:44,532 INFO L93 Difference]: Finished difference Result 49406 states and 109484 transitions. [2021-01-20 21:49:44,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-01-20 21:49:44,533 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:49:44,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:49:44,534 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=620, Invalid=2802, Unknown=0, NotChecked=0, Total=3422 [2021-01-20 21:49:44,534 INFO L78 Accepts]: Start accepts. Automaton has 49406 states and 109484 transitions. Word has length 115 [2021-01-20 21:49:44,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:49:44,534 INFO L481 AbstractCegarLoop]: Abstraction has 49406 states and 109484 transitions. [2021-01-20 21:49:44,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:44,534 INFO L276 IsEmpty]: Start isEmpty. Operand 49406 states and 109484 transitions. [2021-01-20 21:49:44,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:49:44,569 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:49:44,569 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:49:44,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-01-20 21:49:44,569 INFO L429 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]=== [2021-01-20 21:49:44,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:49:44,570 INFO L82 PathProgramCache]: Analyzing trace with hash -842781917, now seen corresponding path program 8 times [2021-01-20 21:49:44,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:49:44,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977191053] [2021-01-20 21:49:44,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:49:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:49:46,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:49:46,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977191053] [2021-01-20 21:49:46,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:49:46,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:49:46,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936637522] [2021-01-20 21:49:46,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:49:46,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:49:46,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:49:46,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:49:46,334 INFO L87 Difference]: Start difference. First operand 49406 states and 109484 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:47,228 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:49:47,588 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:49:48,156 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:49:48,401 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-01-20 21:49:48,872 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-01-20 21:49:49,192 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-01-20 21:49:49,357 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:49:49,614 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-01-20 21:49:49,789 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-01-20 21:49:49,956 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:49:50,499 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:49:51,226 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:49:51,418 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-01-20 21:49:51,816 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-01-20 21:49:53,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:49:53,248 INFO L93 Difference]: Finished difference Result 49544 states and 109704 transitions. [2021-01-20 21:49:53,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-01-20 21:49:53,249 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:49:53,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:49:53,250 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=628, Invalid=2912, Unknown=0, NotChecked=0, Total=3540 [2021-01-20 21:49:53,250 INFO L78 Accepts]: Start accepts. Automaton has 49544 states and 109704 transitions. Word has length 115 [2021-01-20 21:49:53,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:49:53,250 INFO L481 AbstractCegarLoop]: Abstraction has 49544 states and 109704 transitions. [2021-01-20 21:49:53,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:53,251 INFO L276 IsEmpty]: Start isEmpty. Operand 49544 states and 109704 transitions. [2021-01-20 21:49:53,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:49:53,482 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:49:53,483 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:49:53,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-01-20 21:49:53,483 INFO L429 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]=== [2021-01-20 21:49:53,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:49:53,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1330876555, now seen corresponding path program 9 times [2021-01-20 21:49:53,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:49:53,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932654343] [2021-01-20 21:49:53,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:49:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:49:55,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:49:55,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932654343] [2021-01-20 21:49:55,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:49:55,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:49:55,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485765222] [2021-01-20 21:49:55,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:49:55,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:49:55,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:49:55,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:49:55,275 INFO L87 Difference]: Start difference. First operand 49544 states and 109704 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:49:56,373 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:49:56,944 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:49:57,181 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-01-20 21:49:57,628 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-01-20 21:49:57,947 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-01-20 21:49:58,112 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:49:58,480 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-01-20 21:49:58,654 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-01-20 21:49:58,829 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:49:59,536 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-01-20 21:49:59,726 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2021-01-20 21:50:00,014 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2021-01-20 21:50:00,234 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-01-20 21:50:01,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:50:01,815 INFO L93 Difference]: Finished difference Result 49853 states and 110188 transitions. [2021-01-20 21:50:01,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-01-20 21:50:01,816 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:50:01,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:50:01,817 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=586, Invalid=2720, Unknown=0, NotChecked=0, Total=3306 [2021-01-20 21:50:01,817 INFO L78 Accepts]: Start accepts. Automaton has 49853 states and 110188 transitions. Word has length 115 [2021-01-20 21:50:01,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:50:01,818 INFO L481 AbstractCegarLoop]: Abstraction has 49853 states and 110188 transitions. [2021-01-20 21:50:01,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:01,818 INFO L276 IsEmpty]: Start isEmpty. Operand 49853 states and 110188 transitions. [2021-01-20 21:50:01,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:50:01,856 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:50:01,856 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:50:01,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-01-20 21:50:01,857 INFO L429 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]=== [2021-01-20 21:50:01,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:50:01,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1148504113, now seen corresponding path program 10 times [2021-01-20 21:50:01,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:50:01,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594298400] [2021-01-20 21:50:01,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:50:01,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:50:03,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:50:03,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594298400] [2021-01-20 21:50:03,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:50:03,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:50:03,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433458427] [2021-01-20 21:50:03,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:50:03,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:50:03,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:50:03,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:50:03,734 INFO L87 Difference]: Start difference. First operand 49853 states and 110188 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:04,920 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:50:05,477 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:50:05,717 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-01-20 21:50:06,182 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-01-20 21:50:06,507 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-01-20 21:50:06,670 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:50:06,886 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-01-20 21:50:07,556 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-01-20 21:50:07,775 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:50:07,996 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-01-20 21:50:08,182 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:50:08,433 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:50:08,647 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:50:10,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:50:10,417 INFO L93 Difference]: Finished difference Result 49975 states and 110357 transitions. [2021-01-20 21:50:10,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-01-20 21:50:10,418 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:50:10,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:50:10,419 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=598, Invalid=2708, Unknown=0, NotChecked=0, Total=3306 [2021-01-20 21:50:10,419 INFO L78 Accepts]: Start accepts. Automaton has 49975 states and 110357 transitions. Word has length 115 [2021-01-20 21:50:10,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:50:10,419 INFO L481 AbstractCegarLoop]: Abstraction has 49975 states and 110357 transitions. [2021-01-20 21:50:10,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:10,420 INFO L276 IsEmpty]: Start isEmpty. Operand 49975 states and 110357 transitions. [2021-01-20 21:50:10,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:50:10,453 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:50:10,453 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:50:10,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-01-20 21:50:10,453 INFO L429 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]=== [2021-01-20 21:50:10,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:50:10,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1828127119, now seen corresponding path program 11 times [2021-01-20 21:50:10,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:50:10,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516450482] [2021-01-20 21:50:10,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:50:10,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:50:12,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:50:12,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516450482] [2021-01-20 21:50:12,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:50:12,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:50:12,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189252423] [2021-01-20 21:50:12,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:50:12,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:50:12,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:50:12,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:50:12,390 INFO L87 Difference]: Start difference. First operand 49975 states and 110357 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:13,285 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:50:13,519 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:50:14,056 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:50:14,300 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-01-20 21:50:14,750 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-01-20 21:50:15,013 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:50:15,361 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2021-01-20 21:50:15,502 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:50:15,683 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2021-01-20 21:50:15,950 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:50:16,395 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2021-01-20 21:50:16,595 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:50:17,181 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:50:17,558 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-01-20 21:50:19,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:50:19,124 INFO L93 Difference]: Finished difference Result 53943 states and 119303 transitions. [2021-01-20 21:50:19,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-01-20 21:50:19,125 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:50:19,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:50:19,126 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 717 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=597, Invalid=2825, Unknown=0, NotChecked=0, Total=3422 [2021-01-20 21:50:19,127 INFO L78 Accepts]: Start accepts. Automaton has 53943 states and 119303 transitions. Word has length 115 [2021-01-20 21:50:19,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:50:19,127 INFO L481 AbstractCegarLoop]: Abstraction has 53943 states and 119303 transitions. [2021-01-20 21:50:19,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:19,128 INFO L276 IsEmpty]: Start isEmpty. Operand 53943 states and 119303 transitions. [2021-01-20 21:50:19,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:50:19,180 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:50:19,180 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:50:19,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-01-20 21:50:19,181 INFO L429 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]=== [2021-01-20 21:50:19,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:50:19,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1255039609, now seen corresponding path program 12 times [2021-01-20 21:50:19,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:50:19,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375346172] [2021-01-20 21:50:19,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:50:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:50:21,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:50:21,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375346172] [2021-01-20 21:50:21,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:50:21,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:50:21,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677853050] [2021-01-20 21:50:21,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:50:21,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:50:21,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:50:21,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:50:21,388 INFO L87 Difference]: Start difference. First operand 53943 states and 119303 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:22,336 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:50:22,592 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:50:23,181 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:50:23,450 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-01-20 21:50:23,935 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-01-20 21:50:24,220 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:50:24,478 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2021-01-20 21:50:24,636 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:50:24,827 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2021-01-20 21:50:25,132 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:50:25,613 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2021-01-20 21:50:25,832 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:50:26,429 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2021-01-20 21:50:26,660 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-01-20 21:50:27,071 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-01-20 21:50:27,757 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2021-01-20 21:50:28,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:50:28,790 INFO L93 Difference]: Finished difference Result 54081 states and 119523 transitions. [2021-01-20 21:50:28,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-01-20 21:50:28,791 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:50:28,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:50:28,792 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=609, Invalid=2931, Unknown=0, NotChecked=0, Total=3540 [2021-01-20 21:50:28,792 INFO L78 Accepts]: Start accepts. Automaton has 54081 states and 119523 transitions. Word has length 115 [2021-01-20 21:50:28,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:50:28,792 INFO L481 AbstractCegarLoop]: Abstraction has 54081 states and 119523 transitions. [2021-01-20 21:50:28,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:28,792 INFO L276 IsEmpty]: Start isEmpty. Operand 54081 states and 119523 transitions. [2021-01-20 21:50:28,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:50:28,826 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:50:28,826 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:50:28,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-01-20 21:50:28,826 INFO L429 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]=== [2021-01-20 21:50:28,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:50:28,827 INFO L82 PathProgramCache]: Analyzing trace with hash 918618863, now seen corresponding path program 13 times [2021-01-20 21:50:28,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:50:28,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940938038] [2021-01-20 21:50:28,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:50:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:50:30,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:50:30,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940938038] [2021-01-20 21:50:30,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:50:30,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:50:30,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372880657] [2021-01-20 21:50:30,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:50:30,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:50:30,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:50:30,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:50:30,794 INFO L87 Difference]: Start difference. First operand 54081 states and 119523 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:31,754 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:50:32,009 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:50:32,602 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:50:32,863 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-01-20 21:50:33,491 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-01-20 21:50:33,771 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:50:34,020 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2021-01-20 21:50:34,162 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:50:34,352 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2021-01-20 21:50:34,641 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:50:35,368 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2021-01-20 21:50:35,610 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2021-01-20 21:50:35,952 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2021-01-20 21:50:36,225 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-01-20 21:50:38,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:50:38,055 INFO L93 Difference]: Finished difference Result 54087 states and 119529 transitions. [2021-01-20 21:50:38,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-01-20 21:50:38,056 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:50:38,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:50:38,057 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=572, Invalid=2734, Unknown=0, NotChecked=0, Total=3306 [2021-01-20 21:50:38,057 INFO L78 Accepts]: Start accepts. Automaton has 54087 states and 119529 transitions. Word has length 115 [2021-01-20 21:50:38,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:50:38,057 INFO L481 AbstractCegarLoop]: Abstraction has 54087 states and 119529 transitions. [2021-01-20 21:50:38,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:38,058 INFO L276 IsEmpty]: Start isEmpty. Operand 54087 states and 119529 transitions. [2021-01-20 21:50:38,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:50:38,101 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:50:38,101 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:50:38,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-01-20 21:50:38,101 INFO L429 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]=== [2021-01-20 21:50:38,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:50:38,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1326348895, now seen corresponding path program 14 times [2021-01-20 21:50:38,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:50:38,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218289188] [2021-01-20 21:50:38,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:50:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:50:40,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:50:40,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218289188] [2021-01-20 21:50:40,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:50:40,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:50:40,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423316485] [2021-01-20 21:50:40,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:50:40,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:50:40,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:50:40,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:50:40,159 INFO L87 Difference]: Start difference. First operand 54087 states and 119529 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:41,123 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:50:41,366 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:50:41,943 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:50:42,198 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-01-20 21:50:42,676 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-01-20 21:50:42,945 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 21:50:43,419 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:50:43,914 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:50:44,069 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 21:50:44,296 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-01-20 21:50:44,480 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2021-01-20 21:50:44,873 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-01-20 21:50:45,111 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:50:47,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:50:47,529 INFO L93 Difference]: Finished difference Result 55173 states and 121506 transitions. [2021-01-20 21:50:47,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-01-20 21:50:47,531 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:50:47,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:50:47,531 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=620, Invalid=3040, Unknown=0, NotChecked=0, Total=3660 [2021-01-20 21:50:47,531 INFO L78 Accepts]: Start accepts. Automaton has 55173 states and 121506 transitions. Word has length 115 [2021-01-20 21:50:47,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:50:47,532 INFO L481 AbstractCegarLoop]: Abstraction has 55173 states and 121506 transitions. [2021-01-20 21:50:47,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:47,532 INFO L276 IsEmpty]: Start isEmpty. Operand 55173 states and 121506 transitions. [2021-01-20 21:50:47,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:50:47,574 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:50:47,574 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:50:47,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-01-20 21:50:47,574 INFO L429 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]=== [2021-01-20 21:50:47,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:50:47,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1523608363, now seen corresponding path program 15 times [2021-01-20 21:50:47,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:50:47,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901506426] [2021-01-20 21:50:47,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:50:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:50:49,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:50:49,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901506426] [2021-01-20 21:50:49,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:50:49,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:50:49,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204876551] [2021-01-20 21:50:49,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:50:49,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:50:49,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:50:49,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:50:49,491 INFO L87 Difference]: Start difference. First operand 55173 states and 121506 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:50,443 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:50:50,708 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:50:51,458 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:50:51,721 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-01-20 21:50:52,228 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-01-20 21:50:52,488 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:50:53,137 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-01-20 21:50:53,320 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:50:53,629 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-01-20 21:50:53,883 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-01-20 21:50:54,133 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-01-20 21:50:54,323 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:50:54,650 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:50:54,907 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:50:56,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:50:56,705 INFO L93 Difference]: Finished difference Result 55665 states and 122483 transitions. [2021-01-20 21:50:56,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-01-20 21:50:56,706 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:50:56,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:50:56,707 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=598, Invalid=2708, Unknown=0, NotChecked=0, Total=3306 [2021-01-20 21:50:56,707 INFO L78 Accepts]: Start accepts. Automaton has 55665 states and 122483 transitions. Word has length 115 [2021-01-20 21:50:56,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:50:56,707 INFO L481 AbstractCegarLoop]: Abstraction has 55665 states and 122483 transitions. [2021-01-20 21:50:56,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:56,707 INFO L276 IsEmpty]: Start isEmpty. Operand 55665 states and 122483 transitions. [2021-01-20 21:50:56,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:50:56,750 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:50:56,750 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:50:56,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-01-20 21:50:56,751 INFO L429 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]=== [2021-01-20 21:50:56,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:50:56,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1556536847, now seen corresponding path program 16 times [2021-01-20 21:50:56,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:50:56,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964820228] [2021-01-20 21:50:56,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:50:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:50:57,433 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2021-01-20 21:50:58,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:50:58,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964820228] [2021-01-20 21:50:58,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:50:58,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:50:58,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991562560] [2021-01-20 21:50:58,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:50:58,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:50:58,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:50:58,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:50:58,868 INFO L87 Difference]: Start difference. First operand 55665 states and 122483 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:50:59,854 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:51:00,117 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:51:00,735 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:51:01,008 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-01-20 21:51:01,516 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-01-20 21:51:01,782 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:51:02,406 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-01-20 21:51:02,570 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:51:02,780 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:51:03,035 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-01-20 21:51:03,375 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 49 [2021-01-20 21:51:03,980 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2021-01-20 21:51:04,218 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:51:06,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:51:06,132 INFO L93 Difference]: Finished difference Result 56982 states and 124691 transitions. [2021-01-20 21:51:06,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-01-20 21:51:06,133 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:51:06,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:51:06,134 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=596, Invalid=2826, Unknown=0, NotChecked=0, Total=3422 [2021-01-20 21:51:06,134 INFO L78 Accepts]: Start accepts. Automaton has 56982 states and 124691 transitions. Word has length 115 [2021-01-20 21:51:06,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:51:06,135 INFO L481 AbstractCegarLoop]: Abstraction has 56982 states and 124691 transitions. [2021-01-20 21:51:06,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:06,135 INFO L276 IsEmpty]: Start isEmpty. Operand 56982 states and 124691 transitions. [2021-01-20 21:51:06,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:51:06,175 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:51:06,175 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:51:06,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-01-20 21:51:06,175 INFO L429 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]=== [2021-01-20 21:51:06,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:51:06,176 INFO L82 PathProgramCache]: Analyzing trace with hash 411521905, now seen corresponding path program 17 times [2021-01-20 21:51:06,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:51:06,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653741638] [2021-01-20 21:51:06,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:51:06,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:51:08,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:51:08,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653741638] [2021-01-20 21:51:08,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:51:08,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:51:08,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834445666] [2021-01-20 21:51:08,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:51:08,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:51:08,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:51:08,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:51:08,125 INFO L87 Difference]: Start difference. First operand 56982 states and 124691 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:09,061 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:51:09,314 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:51:10,046 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:51:10,295 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-01-20 21:51:11,087 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-01-20 21:51:11,410 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2021-01-20 21:51:11,874 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2021-01-20 21:51:12,126 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 21:51:12,349 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:51:12,677 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-01-20 21:51:12,856 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:51:13,056 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:51:13,280 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:51:13,465 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-01-20 21:51:13,654 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 21:51:14,519 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:51:15,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:51:15,855 INFO L93 Difference]: Finished difference Result 57244 states and 125054 transitions. [2021-01-20 21:51:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-01-20 21:51:15,857 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:51:15,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:51:15,858 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 733 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=659, Invalid=3001, Unknown=0, NotChecked=0, Total=3660 [2021-01-20 21:51:15,858 INFO L78 Accepts]: Start accepts. Automaton has 57244 states and 125054 transitions. Word has length 115 [2021-01-20 21:51:15,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:51:15,858 INFO L481 AbstractCegarLoop]: Abstraction has 57244 states and 125054 transitions. [2021-01-20 21:51:15,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:15,859 INFO L276 IsEmpty]: Start isEmpty. Operand 57244 states and 125054 transitions. [2021-01-20 21:51:15,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:51:15,904 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:51:15,904 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:51:15,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-01-20 21:51:15,905 INFO L429 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]=== [2021-01-20 21:51:15,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:51:15,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1506988109, now seen corresponding path program 18 times [2021-01-20 21:51:15,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:51:15,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629861336] [2021-01-20 21:51:15,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:51:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:51:18,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:51:18,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629861336] [2021-01-20 21:51:18,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:51:18,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:51:18,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365025929] [2021-01-20 21:51:18,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:51:18,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:51:18,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:51:18,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:51:18,062 INFO L87 Difference]: Start difference. First operand 57244 states and 125054 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:19,033 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:51:19,310 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:51:19,991 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:51:20,278 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-01-20 21:51:21,184 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-01-20 21:51:21,558 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-01-20 21:51:21,946 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2021-01-20 21:51:22,143 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:51:22,398 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-01-20 21:51:22,627 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2021-01-20 21:51:22,816 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:51:23,170 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:51:23,570 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:51:25,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:51:25,378 INFO L93 Difference]: Finished difference Result 57366 states and 125223 transitions. [2021-01-20 21:51:25,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-01-20 21:51:25,379 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:51:25,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:51:25,380 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=573, Invalid=2619, Unknown=0, NotChecked=0, Total=3192 [2021-01-20 21:51:25,380 INFO L78 Accepts]: Start accepts. Automaton has 57366 states and 125223 transitions. Word has length 115 [2021-01-20 21:51:25,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:51:25,380 INFO L481 AbstractCegarLoop]: Abstraction has 57366 states and 125223 transitions. [2021-01-20 21:51:25,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:25,381 INFO L276 IsEmpty]: Start isEmpty. Operand 57366 states and 125223 transitions. [2021-01-20 21:51:25,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:51:25,422 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:51:25,422 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:51:25,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-01-20 21:51:25,422 INFO L429 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]=== [2021-01-20 21:51:25,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:51:25,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1539916593, now seen corresponding path program 19 times [2021-01-20 21:51:25,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:51:25,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487291996] [2021-01-20 21:51:25,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:51:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:51:27,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:51:27,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487291996] [2021-01-20 21:51:27,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:51:27,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:51:27,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355211121] [2021-01-20 21:51:27,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:51:27,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:51:27,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:51:27,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:51:27,512 INFO L87 Difference]: Start difference. First operand 57366 states and 125223 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:28,530 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:51:28,803 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:51:29,451 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:51:29,863 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-01-20 21:51:30,779 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-01-20 21:51:31,162 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-01-20 21:51:31,459 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 21:51:31,744 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-01-20 21:51:31,919 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:51:32,174 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2021-01-20 21:51:32,394 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:51:32,859 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-01-20 21:51:33,120 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-01-20 21:51:33,908 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-01-20 21:51:35,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:51:35,300 INFO L93 Difference]: Finished difference Result 57804 states and 125813 transitions. [2021-01-20 21:51:35,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-01-20 21:51:35,301 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:51:35,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:51:35,302 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=592, Invalid=2830, Unknown=0, NotChecked=0, Total=3422 [2021-01-20 21:51:35,302 INFO L78 Accepts]: Start accepts. Automaton has 57804 states and 125813 transitions. Word has length 115 [2021-01-20 21:51:35,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:51:35,303 INFO L481 AbstractCegarLoop]: Abstraction has 57804 states and 125813 transitions. [2021-01-20 21:51:35,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:35,303 INFO L276 IsEmpty]: Start isEmpty. Operand 57804 states and 125813 transitions. [2021-01-20 21:51:35,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:51:35,350 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:51:35,350 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:51:35,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-01-20 21:51:35,350 INFO L429 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]=== [2021-01-20 21:51:35,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:51:35,351 INFO L82 PathProgramCache]: Analyzing trace with hash -176054879, now seen corresponding path program 20 times [2021-01-20 21:51:35,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:51:35,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792062478] [2021-01-20 21:51:35,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:51:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:51:35,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:51:35,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792062478] [2021-01-20 21:51:35,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:51:35,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-01-20 21:51:35,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334445357] [2021-01-20 21:51:35,844 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-20 21:51:35,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:51:35,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-20 21:51:35,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:51:35,845 INFO L87 Difference]: Start difference. First operand 57804 states and 125813 transitions. Second operand has 15 states, 15 states have (on average 7.666666666666667) internal successors, (115), 15 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:36,878 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-01-20 21:51:37,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:51:37,789 INFO L93 Difference]: Finished difference Result 49525 states and 107496 transitions. [2021-01-20 21:51:37,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-01-20 21:51:37,790 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.666666666666667) internal successors, (115), 15 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:51:37,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:51:37,790 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=272, Invalid=918, Unknown=0, NotChecked=0, Total=1190 [2021-01-20 21:51:37,790 INFO L78 Accepts]: Start accepts. Automaton has 49525 states and 107496 transitions. Word has length 115 [2021-01-20 21:51:37,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:51:37,791 INFO L481 AbstractCegarLoop]: Abstraction has 49525 states and 107496 transitions. [2021-01-20 21:51:37,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.666666666666667) internal successors, (115), 15 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:37,791 INFO L276 IsEmpty]: Start isEmpty. Operand 49525 states and 107496 transitions. [2021-01-20 21:51:37,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:51:37,827 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:51:37,828 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:51:37,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-01-20 21:51:37,828 INFO L429 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]=== [2021-01-20 21:51:37,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:51:37,828 INFO L82 PathProgramCache]: Analyzing trace with hash -148484413, now seen corresponding path program 21 times [2021-01-20 21:51:37,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:51:37,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932924113] [2021-01-20 21:51:37,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:51:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:51:39,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:51:39,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932924113] [2021-01-20 21:51:39,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:51:39,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:51:39,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499971931] [2021-01-20 21:51:39,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:51:39,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:51:39,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:51:39,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:51:39,869 INFO L87 Difference]: Start difference. First operand 49525 states and 107496 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:40,831 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:51:41,082 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:51:41,713 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:51:41,980 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2021-01-20 21:51:42,296 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-01-20 21:51:43,099 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-01-20 21:51:43,343 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 21:51:43,488 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:51:44,103 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:51:44,285 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:51:44,561 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:51:44,804 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:51:46,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:51:46,554 INFO L93 Difference]: Finished difference Result 49697 states and 107802 transitions. [2021-01-20 21:51:46,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-01-20 21:51:46,555 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:51:46,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:51:46,556 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=539, Invalid=2541, Unknown=0, NotChecked=0, Total=3080 [2021-01-20 21:51:46,556 INFO L78 Accepts]: Start accepts. Automaton has 49697 states and 107802 transitions. Word has length 115 [2021-01-20 21:51:46,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:51:46,556 INFO L481 AbstractCegarLoop]: Abstraction has 49697 states and 107802 transitions. [2021-01-20 21:51:46,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:46,557 INFO L276 IsEmpty]: Start isEmpty. Operand 49697 states and 107802 transitions. [2021-01-20 21:51:46,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:51:46,594 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:51:46,594 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:51:46,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-01-20 21:51:46,594 INFO L429 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]=== [2021-01-20 21:51:46,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:51:46,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1601615549, now seen corresponding path program 22 times [2021-01-20 21:51:46,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:51:46,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301419419] [2021-01-20 21:51:46,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:51:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:51:48,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:51:48,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301419419] [2021-01-20 21:51:48,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:51:48,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:51:48,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371742875] [2021-01-20 21:51:48,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:51:48,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:51:48,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:51:48,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:51:48,815 INFO L87 Difference]: Start difference. First operand 49697 states and 107802 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:49,776 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:51:50,038 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:51:50,646 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:51:50,938 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2021-01-20 21:51:51,280 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-01-20 21:51:51,881 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-01-20 21:51:52,159 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:51:52,330 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:51:52,788 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:51:52,991 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:51:53,608 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:51:53,961 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-01-20 21:51:55,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:51:55,630 INFO L93 Difference]: Finished difference Result 50002 states and 108293 transitions. [2021-01-20 21:51:55,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-01-20 21:51:55,632 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:51:55,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:51:55,633 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=570, Invalid=2622, Unknown=0, NotChecked=0, Total=3192 [2021-01-20 21:51:55,633 INFO L78 Accepts]: Start accepts. Automaton has 50002 states and 108293 transitions. Word has length 115 [2021-01-20 21:51:55,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:51:55,637 INFO L481 AbstractCegarLoop]: Abstraction has 50002 states and 108293 transitions. [2021-01-20 21:51:55,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:55,637 INFO L276 IsEmpty]: Start isEmpty. Operand 50002 states and 108293 transitions. [2021-01-20 21:51:55,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:51:55,912 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:51:55,912 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:51:55,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-01-20 21:51:55,912 INFO L429 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]=== [2021-01-20 21:51:55,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:51:55,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1754253379, now seen corresponding path program 23 times [2021-01-20 21:51:55,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:51:55,913 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065239824] [2021-01-20 21:51:55,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:51:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:51:58,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:51:58,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065239824] [2021-01-20 21:51:58,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:51:58,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:51:58,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459296595] [2021-01-20 21:51:58,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:51:58,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:51:58,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:51:58,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:51:58,216 INFO L87 Difference]: Start difference. First operand 50002 states and 108293 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:51:59,270 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:51:59,543 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:52:00,212 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:52:00,507 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2021-01-20 21:52:00,975 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-01-20 21:52:01,632 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-01-20 21:52:01,921 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:52:02,078 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:52:02,575 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:52:02,775 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:52:03,336 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:52:03,606 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-01-20 21:52:04,067 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-01-20 21:52:05,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:52:05,792 INFO L93 Difference]: Finished difference Result 50125 states and 108488 transitions. [2021-01-20 21:52:05,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-01-20 21:52:05,793 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:52:05,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:52:05,794 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=580, Invalid=2726, Unknown=0, NotChecked=0, Total=3306 [2021-01-20 21:52:05,794 INFO L78 Accepts]: Start accepts. Automaton has 50125 states and 108488 transitions. Word has length 115 [2021-01-20 21:52:05,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:52:05,794 INFO L481 AbstractCegarLoop]: Abstraction has 50125 states and 108488 transitions. [2021-01-20 21:52:05,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:05,794 INFO L276 IsEmpty]: Start isEmpty. Operand 50125 states and 108488 transitions. [2021-01-20 21:52:05,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:52:05,841 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:52:05,842 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:52:05,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-01-20 21:52:05,842 INFO L429 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]=== [2021-01-20 21:52:05,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:52:05,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1994486459, now seen corresponding path program 24 times [2021-01-20 21:52:05,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:52:05,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472439334] [2021-01-20 21:52:05,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:52:05,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:52:06,535 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 27 [2021-01-20 21:52:08,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:52:08,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472439334] [2021-01-20 21:52:08,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:52:08,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:52:08,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400334797] [2021-01-20 21:52:08,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:52:08,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:52:08,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:52:08,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:52:08,010 INFO L87 Difference]: Start difference. First operand 50125 states and 108488 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:09,117 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:52:09,720 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:52:09,989 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2021-01-20 21:52:10,335 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-01-20 21:52:10,975 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-01-20 21:52:11,210 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-01-20 21:52:11,847 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-01-20 21:52:12,029 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:52:12,244 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:52:12,442 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:52:12,704 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:52:12,958 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:52:14,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:52:14,923 INFO L93 Difference]: Finished difference Result 50317 states and 108821 transitions. [2021-01-20 21:52:14,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-01-20 21:52:14,924 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:52:14,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:52:14,925 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=573, Invalid=2619, Unknown=0, NotChecked=0, Total=3192 [2021-01-20 21:52:14,925 INFO L78 Accepts]: Start accepts. Automaton has 50317 states and 108821 transitions. Word has length 115 [2021-01-20 21:52:14,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:52:14,926 INFO L481 AbstractCegarLoop]: Abstraction has 50317 states and 108821 transitions. [2021-01-20 21:52:14,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:14,926 INFO L276 IsEmpty]: Start isEmpty. Operand 50317 states and 108821 transitions. [2021-01-20 21:52:14,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:52:14,962 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:52:14,962 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:52:14,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-01-20 21:52:14,962 INFO L429 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]=== [2021-01-20 21:52:14,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:52:14,962 INFO L82 PathProgramCache]: Analyzing trace with hash 2091797413, now seen corresponding path program 25 times [2021-01-20 21:52:14,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:52:14,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545077981] [2021-01-20 21:52:14,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:52:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:52:17,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:52:17,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545077981] [2021-01-20 21:52:17,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:52:17,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:52:17,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923835399] [2021-01-20 21:52:17,171 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:52:17,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:52:17,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:52:17,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:52:17,172 INFO L87 Difference]: Start difference. First operand 50317 states and 108821 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:18,240 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:52:18,523 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:52:19,331 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:52:19,616 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2021-01-20 21:52:19,957 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-01-20 21:52:21,081 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-01-20 21:52:21,488 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 66 [2021-01-20 21:52:21,792 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:52:21,966 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:52:22,259 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:52:22,514 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:52:24,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:52:24,260 INFO L93 Difference]: Finished difference Result 50309 states and 108813 transitions. [2021-01-20 21:52:24,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-01-20 21:52:24,262 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:52:24,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:52:24,262 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=533, Invalid=2437, Unknown=0, NotChecked=0, Total=2970 [2021-01-20 21:52:24,263 INFO L78 Accepts]: Start accepts. Automaton has 50309 states and 108813 transitions. Word has length 115 [2021-01-20 21:52:24,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:52:24,263 INFO L481 AbstractCegarLoop]: Abstraction has 50309 states and 108813 transitions. [2021-01-20 21:52:24,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:24,263 INFO L276 IsEmpty]: Start isEmpty. Operand 50309 states and 108813 transitions. [2021-01-20 21:52:24,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:52:24,316 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:52:24,317 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:52:24,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-01-20 21:52:24,317 INFO L429 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]=== [2021-01-20 21:52:24,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:52:24,317 INFO L82 PathProgramCache]: Analyzing trace with hash 78127259, now seen corresponding path program 26 times [2021-01-20 21:52:24,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:52:24,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543003233] [2021-01-20 21:52:24,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:52:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:52:24,909 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2021-01-20 21:52:25,939 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 25 [2021-01-20 21:52:26,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:52:26,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543003233] [2021-01-20 21:52:26,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:52:26,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:52:26,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628915177] [2021-01-20 21:52:26,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:52:26,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:52:26,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:52:26,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=500, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:52:26,777 INFO L87 Difference]: Start difference. First operand 50309 states and 108813 transitions. Second operand has 24 states, 24 states have (on average 4.791666666666667) internal successors, (115), 24 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:28,271 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2021-01-20 21:52:28,527 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 48 [2021-01-20 21:52:29,149 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 52 [2021-01-20 21:52:29,423 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-01-20 21:52:30,225 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-01-20 21:52:30,574 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-01-20 21:52:31,055 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2021-01-20 21:52:31,321 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-01-20 21:52:31,645 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 21:52:31,929 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:52:32,180 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2021-01-20 21:52:33,264 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-01-20 21:52:34,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:52:34,032 INFO L93 Difference]: Finished difference Result 50305 states and 108809 transitions. [2021-01-20 21:52:34,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-01-20 21:52:34,034 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.791666666666667) internal successors, (115), 24 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:52:34,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:52:34,035 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=506, Invalid=2250, Unknown=0, NotChecked=0, Total=2756 [2021-01-20 21:52:34,035 INFO L78 Accepts]: Start accepts. Automaton has 50305 states and 108809 transitions. Word has length 115 [2021-01-20 21:52:34,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:52:34,035 INFO L481 AbstractCegarLoop]: Abstraction has 50305 states and 108809 transitions. [2021-01-20 21:52:34,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.791666666666667) internal successors, (115), 24 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:34,035 INFO L276 IsEmpty]: Start isEmpty. Operand 50305 states and 108809 transitions. [2021-01-20 21:52:34,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:52:34,077 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:52:34,077 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:52:34,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-01-20 21:52:34,077 INFO L429 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]=== [2021-01-20 21:52:34,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:52:34,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1868367311, now seen corresponding path program 27 times [2021-01-20 21:52:34,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:52:34,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815913415] [2021-01-20 21:52:34,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:52:34,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:52:34,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:52:34,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815913415] [2021-01-20 21:52:34,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:52:34,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-01-20 21:52:34,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114658476] [2021-01-20 21:52:34,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-01-20 21:52:34,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:52:34,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-01-20 21:52:34,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:52:34,644 INFO L87 Difference]: Start difference. First operand 50305 states and 108809 transitions. Second operand has 15 states, 15 states have (on average 7.666666666666667) internal successors, (115), 15 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:36,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:52:36,874 INFO L93 Difference]: Finished difference Result 46024 states and 98546 transitions. [2021-01-20 21:52:36,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-01-20 21:52:36,875 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.666666666666667) internal successors, (115), 15 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:52:36,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:52:36,875 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=308, Invalid=1024, Unknown=0, NotChecked=0, Total=1332 [2021-01-20 21:52:36,875 INFO L78 Accepts]: Start accepts. Automaton has 46024 states and 98546 transitions. Word has length 115 [2021-01-20 21:52:36,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:52:36,875 INFO L481 AbstractCegarLoop]: Abstraction has 46024 states and 98546 transitions. [2021-01-20 21:52:36,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.666666666666667) internal successors, (115), 15 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:36,875 INFO L276 IsEmpty]: Start isEmpty. Operand 46024 states and 98546 transitions. [2021-01-20 21:52:36,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:52:36,912 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:52:36,912 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:52:36,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-01-20 21:52:36,912 INFO L429 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]=== [2021-01-20 21:52:36,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:52:36,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1567498123, now seen corresponding path program 28 times [2021-01-20 21:52:36,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:52:36,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058887018] [2021-01-20 21:52:36,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:52:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:52:39,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:52:39,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058887018] [2021-01-20 21:52:39,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:52:39,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:52:39,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686841584] [2021-01-20 21:52:39,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:52:39,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:52:39,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:52:39,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:52:39,147 INFO L87 Difference]: Start difference. First operand 46024 states and 98546 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:40,252 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:52:40,520 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:52:41,186 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:52:41,489 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2021-01-20 21:52:41,785 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2021-01-20 21:52:42,490 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-01-20 21:52:42,799 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:52:43,030 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:52:43,911 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:52:44,115 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:52:44,676 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:52:46,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:52:46,452 INFO L93 Difference]: Finished difference Result 46332 states and 99016 transitions. [2021-01-20 21:52:46,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-01-20 21:52:46,453 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:52:46,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:52:46,454 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=580, Invalid=2612, Unknown=0, NotChecked=0, Total=3192 [2021-01-20 21:52:46,454 INFO L78 Accepts]: Start accepts. Automaton has 46332 states and 99016 transitions. Word has length 115 [2021-01-20 21:52:46,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:52:46,455 INFO L481 AbstractCegarLoop]: Abstraction has 46332 states and 99016 transitions. [2021-01-20 21:52:46,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:46,455 INFO L276 IsEmpty]: Start isEmpty. Operand 46332 states and 99016 transitions. [2021-01-20 21:52:46,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:52:46,492 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:52:46,492 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:52:46,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-01-20 21:52:46,493 INFO L429 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]=== [2021-01-20 21:52:46,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:52:46,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1515668605, now seen corresponding path program 29 times [2021-01-20 21:52:46,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:52:46,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675666746] [2021-01-20 21:52:46,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:52:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:52:48,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:52:48,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675666746] [2021-01-20 21:52:48,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:52:48,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:52:48,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587637745] [2021-01-20 21:52:48,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:52:48,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:52:48,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:52:48,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:52:48,583 INFO L87 Difference]: Start difference. First operand 46332 states and 99016 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:49,675 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:52:49,972 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:52:50,733 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:52:51,063 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2021-01-20 21:52:51,405 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2021-01-20 21:52:52,093 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-01-20 21:52:52,387 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:52:52,611 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:52:53,134 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:52:53,347 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:52:53,905 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:52:54,105 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-01-20 21:52:54,540 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-01-20 21:52:56,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:52:56,090 INFO L93 Difference]: Finished difference Result 46470 states and 99236 transitions. [2021-01-20 21:52:56,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-01-20 21:52:56,091 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:52:56,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:52:56,092 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 651 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=588, Invalid=2718, Unknown=0, NotChecked=0, Total=3306 [2021-01-20 21:52:56,093 INFO L78 Accepts]: Start accepts. Automaton has 46470 states and 99236 transitions. Word has length 115 [2021-01-20 21:52:56,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:52:56,093 INFO L481 AbstractCegarLoop]: Abstraction has 46470 states and 99236 transitions. [2021-01-20 21:52:56,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:56,093 INFO L276 IsEmpty]: Start isEmpty. Operand 46470 states and 99236 transitions. [2021-01-20 21:52:56,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:52:56,140 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:52:56,140 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:52:56,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-01-20 21:52:56,140 INFO L429 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]=== [2021-01-20 21:52:56,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:52:56,141 INFO L82 PathProgramCache]: Analyzing trace with hash 657989867, now seen corresponding path program 30 times [2021-01-20 21:52:56,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:52:56,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177824040] [2021-01-20 21:52:56,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:52:56,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:52:57,596 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 20 [2021-01-20 21:52:58,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:52:58,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177824040] [2021-01-20 21:52:58,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:52:58,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:52:58,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774550944] [2021-01-20 21:52:58,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:52:58,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:52:58,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:52:58,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:52:58,506 INFO L87 Difference]: Start difference. First operand 46470 states and 99236 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:52:59,557 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:52:59,858 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:53:00,573 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:53:00,891 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2021-01-20 21:53:01,223 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2021-01-20 21:53:01,979 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-01-20 21:53:02,408 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:53:02,650 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:53:03,359 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2021-01-20 21:53:03,551 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2021-01-20 21:53:03,854 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2021-01-20 21:53:04,074 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-01-20 21:53:05,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:53:05,812 INFO L93 Difference]: Finished difference Result 46627 states and 99475 transitions. [2021-01-20 21:53:05,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-01-20 21:53:05,812 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:53:05,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:53:05,813 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 587 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=543, Invalid=2537, Unknown=0, NotChecked=0, Total=3080 [2021-01-20 21:53:05,813 INFO L78 Accepts]: Start accepts. Automaton has 46627 states and 99475 transitions. Word has length 115 [2021-01-20 21:53:05,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:53:05,814 INFO L481 AbstractCegarLoop]: Abstraction has 46627 states and 99475 transitions. [2021-01-20 21:53:05,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:05,814 INFO L276 IsEmpty]: Start isEmpty. Operand 46627 states and 99475 transitions. [2021-01-20 21:53:05,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:53:05,859 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:53:05,859 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:53:05,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-01-20 21:53:05,860 INFO L429 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]=== [2021-01-20 21:53:05,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:53:05,860 INFO L82 PathProgramCache]: Analyzing trace with hash 475617425, now seen corresponding path program 31 times [2021-01-20 21:53:05,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:53:05,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383974413] [2021-01-20 21:53:05,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:53:05,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:53:07,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:53:07,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383974413] [2021-01-20 21:53:07,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:53:07,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:53:07,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808760180] [2021-01-20 21:53:07,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:53:07,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:53:07,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:53:07,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:53:07,793 INFO L87 Difference]: Start difference. First operand 46627 states and 99475 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:08,920 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:53:09,234 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:53:09,557 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 30 [2021-01-20 21:53:10,047 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:53:10,373 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2021-01-20 21:53:10,735 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2021-01-20 21:53:11,443 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-01-20 21:53:11,724 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-01-20 21:53:12,479 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-01-20 21:53:12,675 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:53:12,941 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 21:53:13,193 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:53:13,528 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:53:13,819 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-01-20 21:53:13,979 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-01-20 21:53:15,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:53:15,708 INFO L93 Difference]: Finished difference Result 46788 states and 99718 transitions. [2021-01-20 21:53:15,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-01-20 21:53:15,710 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:53:15,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:53:15,710 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=575, Invalid=2617, Unknown=0, NotChecked=0, Total=3192 [2021-01-20 21:53:15,711 INFO L78 Accepts]: Start accepts. Automaton has 46788 states and 99718 transitions. Word has length 115 [2021-01-20 21:53:15,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:53:15,711 INFO L481 AbstractCegarLoop]: Abstraction has 46788 states and 99718 transitions. [2021-01-20 21:53:15,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:15,711 INFO L276 IsEmpty]: Start isEmpty. Operand 46788 states and 99718 transitions. [2021-01-20 21:53:15,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:53:15,747 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:53:15,747 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:53:15,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-01-20 21:53:15,747 INFO L429 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]=== [2021-01-20 21:53:15,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:53:15,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1307437555, now seen corresponding path program 32 times [2021-01-20 21:53:15,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:53:15,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790361313] [2021-01-20 21:53:15,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:53:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:53:17,580 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 12 [2021-01-20 21:53:17,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:53:17,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790361313] [2021-01-20 21:53:17,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:53:17,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:53:17,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862489456] [2021-01-20 21:53:17,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:53:17,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:53:17,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:53:17,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:53:17,993 INFO L87 Difference]: Start difference. First operand 46788 states and 99718 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:19,029 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:53:19,349 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2021-01-20 21:53:20,052 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2021-01-20 21:53:20,420 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2021-01-20 21:53:20,748 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2021-01-20 21:53:21,970 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-01-20 21:53:22,398 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-01-20 21:53:22,696 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-01-20 21:53:22,947 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:53:23,249 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:53:23,497 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-01-20 21:53:24,801 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2021-01-20 21:53:25,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:53:25,316 INFO L93 Difference]: Finished difference Result 46798 states and 99728 transitions. [2021-01-20 21:53:25,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-01-20 21:53:25,317 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:53:25,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:53:25,318 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=535, Invalid=2435, Unknown=0, NotChecked=0, Total=2970 [2021-01-20 21:53:25,318 INFO L78 Accepts]: Start accepts. Automaton has 46798 states and 99728 transitions. Word has length 115 [2021-01-20 21:53:25,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:53:25,318 INFO L481 AbstractCegarLoop]: Abstraction has 46798 states and 99728 transitions. [2021-01-20 21:53:25,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:25,318 INFO L276 IsEmpty]: Start isEmpty. Operand 46798 states and 99728 transitions. [2021-01-20 21:53:25,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:53:25,354 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:53:25,354 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:53:25,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-01-20 21:53:25,354 INFO L429 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]=== [2021-01-20 21:53:25,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:53:25,354 INFO L82 PathProgramCache]: Analyzing trace with hash -215304097, now seen corresponding path program 33 times [2021-01-20 21:53:25,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:53:25,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120194602] [2021-01-20 21:53:25,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:53:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:53:25,953 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2021-01-20 21:53:27,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:53:27,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120194602] [2021-01-20 21:53:27,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:53:27,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:53:27,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001950512] [2021-01-20 21:53:27,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:53:27,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:53:27,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:53:27,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:53:27,751 INFO L87 Difference]: Start difference. First operand 46798 states and 99728 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:28,828 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:53:29,103 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:53:29,766 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:53:30,081 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-01-20 21:53:30,432 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2021-01-20 21:53:31,191 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-01-20 21:53:31,510 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 21:53:31,692 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:53:32,519 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:53:32,720 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:53:33,023 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:53:33,307 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:53:35,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:53:35,220 INFO L93 Difference]: Finished difference Result 47414 states and 101074 transitions. [2021-01-20 21:53:35,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-01-20 21:53:35,222 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:53:35,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:53:35,223 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=539, Invalid=2541, Unknown=0, NotChecked=0, Total=3080 [2021-01-20 21:53:35,223 INFO L78 Accepts]: Start accepts. Automaton has 47414 states and 101074 transitions. Word has length 115 [2021-01-20 21:53:35,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:53:35,223 INFO L481 AbstractCegarLoop]: Abstraction has 47414 states and 101074 transitions. [2021-01-20 21:53:35,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:35,223 INFO L276 IsEmpty]: Start isEmpty. Operand 47414 states and 101074 transitions. [2021-01-20 21:53:35,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:53:35,260 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:53:35,260 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:53:35,260 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-01-20 21:53:35,260 INFO L429 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]=== [2021-01-20 21:53:35,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:53:35,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1668435233, now seen corresponding path program 34 times [2021-01-20 21:53:35,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:53:35,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626790943] [2021-01-20 21:53:35,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:53:35,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:53:37,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:53:37,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626790943] [2021-01-20 21:53:37,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:53:37,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:53:37,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185217813] [2021-01-20 21:53:37,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:53:37,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:53:37,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:53:37,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:53:37,498 INFO L87 Difference]: Start difference. First operand 47414 states and 101074 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:38,582 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:53:38,863 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:53:39,564 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:53:40,068 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-01-20 21:53:40,427 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2021-01-20 21:53:41,206 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-01-20 21:53:41,569 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:53:41,773 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:53:42,355 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:53:42,582 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:53:43,291 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:53:43,693 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-01-20 21:53:45,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:53:45,426 INFO L93 Difference]: Finished difference Result 48141 states and 102505 transitions. [2021-01-20 21:53:45,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-01-20 21:53:45,427 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:53:45,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:53:45,428 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=570, Invalid=2622, Unknown=0, NotChecked=0, Total=3192 [2021-01-20 21:53:45,428 INFO L78 Accepts]: Start accepts. Automaton has 48141 states and 102505 transitions. Word has length 115 [2021-01-20 21:53:45,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:53:45,428 INFO L481 AbstractCegarLoop]: Abstraction has 48141 states and 102505 transitions. [2021-01-20 21:53:45,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:45,428 INFO L276 IsEmpty]: Start isEmpty. Operand 48141 states and 102505 transitions. [2021-01-20 21:53:45,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:53:45,475 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:53:45,475 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:53:45,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-01-20 21:53:45,475 INFO L429 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]=== [2021-01-20 21:53:45,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:53:45,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1687433695, now seen corresponding path program 35 times [2021-01-20 21:53:45,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:53:45,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414510647] [2021-01-20 21:53:45,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:53:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:53:46,113 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 9 [2021-01-20 21:53:48,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:53:48,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414510647] [2021-01-20 21:53:48,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:53:48,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:53:48,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085000435] [2021-01-20 21:53:48,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:53:48,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:53:48,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:53:48,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:53:48,227 INFO L87 Difference]: Start difference. First operand 48141 states and 102505 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:49,276 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:53:49,525 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:53:50,199 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:53:50,492 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-01-20 21:53:50,820 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2021-01-20 21:53:51,511 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-01-20 21:53:51,842 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:53:52,055 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:53:52,611 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:53:52,842 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:53:53,435 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:53:53,720 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-01-20 21:53:54,187 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-01-20 21:53:56,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:53:56,061 INFO L93 Difference]: Finished difference Result 48264 states and 102700 transitions. [2021-01-20 21:53:56,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-01-20 21:53:56,063 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:53:56,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:53:56,064 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=580, Invalid=2726, Unknown=0, NotChecked=0, Total=3306 [2021-01-20 21:53:56,064 INFO L78 Accepts]: Start accepts. Automaton has 48264 states and 102700 transitions. Word has length 115 [2021-01-20 21:53:56,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:53:56,064 INFO L481 AbstractCegarLoop]: Abstraction has 48264 states and 102700 transitions. [2021-01-20 21:53:56,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:56,064 INFO L276 IsEmpty]: Start isEmpty. Operand 48264 states and 102700 transitions. [2021-01-20 21:53:56,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:53:56,309 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:53:56,309 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:53:56,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-01-20 21:53:56,309 INFO L429 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]=== [2021-01-20 21:53:56,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:53:56,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1927666775, now seen corresponding path program 36 times [2021-01-20 21:53:56,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:53:56,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885025905] [2021-01-20 21:53:56,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:53:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:53:58,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:53:58,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885025905] [2021-01-20 21:53:58,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:53:58,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:53:58,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999703116] [2021-01-20 21:53:58,425 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:53:58,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:53:58,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:53:58,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:53:58,426 INFO L87 Difference]: Start difference. First operand 48264 states and 102700 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:53:59,531 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:53:59,821 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:54:00,476 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:54:00,800 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-01-20 21:54:01,154 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2021-01-20 21:54:01,834 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-01-20 21:54:02,122 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-01-20 21:54:02,933 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-01-20 21:54:03,112 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:54:03,334 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:54:03,545 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:54:03,832 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:54:04,143 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:54:06,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:54:06,222 INFO L93 Difference]: Finished difference Result 48456 states and 103033 transitions. [2021-01-20 21:54:06,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-01-20 21:54:06,223 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:54:06,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:54:06,224 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=573, Invalid=2619, Unknown=0, NotChecked=0, Total=3192 [2021-01-20 21:54:06,224 INFO L78 Accepts]: Start accepts. Automaton has 48456 states and 103033 transitions. Word has length 115 [2021-01-20 21:54:06,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:54:06,225 INFO L481 AbstractCegarLoop]: Abstraction has 48456 states and 103033 transitions. [2021-01-20 21:54:06,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:54:06,225 INFO L276 IsEmpty]: Start isEmpty. Operand 48456 states and 103033 transitions. [2021-01-20 21:54:06,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:54:06,276 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:54:06,276 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:54:06,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-01-20 21:54:06,278 INFO L429 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]=== [2021-01-20 21:54:06,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:54:06,279 INFO L82 PathProgramCache]: Analyzing trace with hash 2024977729, now seen corresponding path program 37 times [2021-01-20 21:54:06,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:54:06,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418506841] [2021-01-20 21:54:06,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:54:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:54:07,071 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2021-01-20 21:54:07,199 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2021-01-20 21:54:08,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:54:08,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418506841] [2021-01-20 21:54:08,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:54:08,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:54:08,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992057146] [2021-01-20 21:54:08,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:54:08,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:54:08,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:54:08,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:54:08,719 INFO L87 Difference]: Start difference. First operand 48456 states and 103033 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:54:09,734 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:54:09,996 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:54:10,618 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:54:10,953 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-01-20 21:54:11,247 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2021-01-20 21:54:12,265 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-01-20 21:54:12,673 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-01-20 21:54:12,987 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:54:13,165 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:54:13,437 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:54:13,692 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:54:15,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:54:15,604 INFO L93 Difference]: Finished difference Result 48536 states and 103145 transitions. [2021-01-20 21:54:15,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-01-20 21:54:15,605 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:54:15,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:54:15,606 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=533, Invalid=2437, Unknown=0, NotChecked=0, Total=2970 [2021-01-20 21:54:15,607 INFO L78 Accepts]: Start accepts. Automaton has 48536 states and 103145 transitions. Word has length 115 [2021-01-20 21:54:15,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:54:15,607 INFO L481 AbstractCegarLoop]: Abstraction has 48536 states and 103145 transitions. [2021-01-20 21:54:15,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:54:15,608 INFO L276 IsEmpty]: Start isEmpty. Operand 48536 states and 103145 transitions. [2021-01-20 21:54:15,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:54:15,646 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:54:15,646 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:54:15,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-01-20 21:54:15,646 INFO L429 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]=== [2021-01-20 21:54:15,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:54:15,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1483074931, now seen corresponding path program 38 times [2021-01-20 21:54:15,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:54:15,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338270451] [2021-01-20 21:54:15,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:54:15,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:54:17,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:54:17,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338270451] [2021-01-20 21:54:17,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:54:17,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:54:17,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10490564] [2021-01-20 21:54:17,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:54:17,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:54:17,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:54:17,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:54:17,875 INFO L87 Difference]: Start difference. First operand 48536 states and 103145 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:54:18,895 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2021-01-20 21:54:19,110 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:54:19,397 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:54:20,091 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:54:20,397 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-01-20 21:54:20,975 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-01-20 21:54:21,338 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-01-20 21:54:21,543 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:54:21,809 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2021-01-20 21:54:22,019 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2021-01-20 21:54:22,198 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:54:22,931 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-01-20 21:54:23,140 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:54:23,439 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:54:23,701 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:54:25,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:54:25,610 INFO L93 Difference]: Finished difference Result 49129 states and 104451 transitions. [2021-01-20 21:54:25,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-01-20 21:54:25,611 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:54:25,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:54:25,612 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 669 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=582, Invalid=2724, Unknown=0, NotChecked=0, Total=3306 [2021-01-20 21:54:25,613 INFO L78 Accepts]: Start accepts. Automaton has 49129 states and 104451 transitions. Word has length 115 [2021-01-20 21:54:25,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:54:25,613 INFO L481 AbstractCegarLoop]: Abstraction has 49129 states and 104451 transitions. [2021-01-20 21:54:25,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:54:25,613 INFO L276 IsEmpty]: Start isEmpty. Operand 49129 states and 104451 transitions. [2021-01-20 21:54:25,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:54:25,651 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:54:25,652 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:54:25,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-01-20 21:54:25,652 INFO L429 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]=== [2021-01-20 21:54:25,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:54:25,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1358761229, now seen corresponding path program 39 times [2021-01-20 21:54:25,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:54:25,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273642163] [2021-01-20 21:54:25,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:54:25,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:54:28,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:54:28,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273642163] [2021-01-20 21:54:28,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:54:28,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:54:28,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984958015] [2021-01-20 21:54:28,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:54:28,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:54:28,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:54:28,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:54:28,518 INFO L87 Difference]: Start difference. First operand 49129 states and 104451 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:54:29,680 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:54:29,987 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:54:30,740 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:54:31,063 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-01-20 21:54:31,702 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-01-20 21:54:32,057 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-01-20 21:54:32,258 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:54:32,551 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2021-01-20 21:54:32,758 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2021-01-20 21:54:32,930 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:54:33,436 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:54:33,650 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:54:34,357 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:54:36,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:54:36,576 INFO L93 Difference]: Finished difference Result 49827 states and 105835 transitions. [2021-01-20 21:54:36,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-01-20 21:54:36,577 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:54:36,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:54:36,578 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=610, Invalid=2812, Unknown=0, NotChecked=0, Total=3422 [2021-01-20 21:54:36,578 INFO L78 Accepts]: Start accepts. Automaton has 49827 states and 105835 transitions. Word has length 115 [2021-01-20 21:54:36,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:54:36,578 INFO L481 AbstractCegarLoop]: Abstraction has 49827 states and 105835 transitions. [2021-01-20 21:54:36,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:54:36,579 INFO L276 IsEmpty]: Start isEmpty. Operand 49827 states and 105835 transitions. [2021-01-20 21:54:36,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:54:36,619 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:54:36,619 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:54:36,619 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-01-20 21:54:36,619 INFO L429 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]=== [2021-01-20 21:54:36,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:54:36,619 INFO L82 PathProgramCache]: Analyzing trace with hash 419662861, now seen corresponding path program 40 times [2021-01-20 21:54:36,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:54:36,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906432880] [2021-01-20 21:54:36,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:54:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:54:39,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:54:39,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906432880] [2021-01-20 21:54:39,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:54:39,063 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:54:39,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409111520] [2021-01-20 21:54:39,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:54:39,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:54:39,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:54:39,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:54:39,065 INFO L87 Difference]: Start difference. First operand 49827 states and 105835 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:54:40,278 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:54:40,579 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:54:41,332 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:54:41,658 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-01-20 21:54:42,275 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-01-20 21:54:42,738 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-01-20 21:54:42,934 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:54:43,234 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2021-01-20 21:54:43,443 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2021-01-20 21:54:43,643 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:54:44,162 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:54:44,383 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:54:45,041 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:54:45,327 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-01-20 21:54:45,780 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-01-20 21:54:47,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:54:47,665 INFO L93 Difference]: Finished difference Result 49950 states and 106030 transitions. [2021-01-20 21:54:47,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-01-20 21:54:47,667 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:54:47,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:54:47,668 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=620, Invalid=2920, Unknown=0, NotChecked=0, Total=3540 [2021-01-20 21:54:47,668 INFO L78 Accepts]: Start accepts. Automaton has 49950 states and 106030 transitions. Word has length 115 [2021-01-20 21:54:47,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:54:47,668 INFO L481 AbstractCegarLoop]: Abstraction has 49950 states and 106030 transitions. [2021-01-20 21:54:47,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:54:47,669 INFO L276 IsEmpty]: Start isEmpty. Operand 49950 states and 106030 transitions. [2021-01-20 21:54:47,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:54:47,709 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:54:47,709 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:54:47,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-01-20 21:54:47,709 INFO L429 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]=== [2021-01-20 21:54:47,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:54:47,710 INFO L82 PathProgramCache]: Analyzing trace with hash 659895941, now seen corresponding path program 41 times [2021-01-20 21:54:47,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:54:47,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603036365] [2021-01-20 21:54:47,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:54:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:54:50,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:54:50,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603036365] [2021-01-20 21:54:50,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:54:50,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:54:50,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494160530] [2021-01-20 21:54:50,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:54:50,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:54:50,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:54:50,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:54:50,001 INFO L87 Difference]: Start difference. First operand 49950 states and 106030 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:54:51,308 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:54:51,632 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:54:52,449 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:54:52,790 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-01-20 21:54:53,468 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-01-20 21:54:53,846 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-01-20 21:54:54,062 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:54:54,339 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2021-01-20 21:54:55,095 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-01-20 21:54:55,356 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2021-01-20 21:54:55,595 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2021-01-20 21:54:55,828 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:54:56,156 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:54:56,420 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:54:58,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:54:58,246 INFO L93 Difference]: Finished difference Result 50034 states and 106146 transitions. [2021-01-20 21:54:58,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-01-20 21:54:58,247 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:54:58,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:54:58,248 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=598, Invalid=2708, Unknown=0, NotChecked=0, Total=3306 [2021-01-20 21:54:58,248 INFO L78 Accepts]: Start accepts. Automaton has 50034 states and 106146 transitions. Word has length 115 [2021-01-20 21:54:58,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:54:58,248 INFO L481 AbstractCegarLoop]: Abstraction has 50034 states and 106146 transitions. [2021-01-20 21:54:58,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:54:58,248 INFO L276 IsEmpty]: Start isEmpty. Operand 50034 states and 106146 transitions. [2021-01-20 21:54:58,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:54:58,503 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:54:58,504 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:54:58,504 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-01-20 21:54:58,504 INFO L429 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]=== [2021-01-20 21:54:58,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:54:58,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1195883139, now seen corresponding path program 42 times [2021-01-20 21:54:58,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:54:58,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054987069] [2021-01-20 21:54:58,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:54:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:55:00,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:55:00,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054987069] [2021-01-20 21:55:00,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:55:00,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:55:00,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650134782] [2021-01-20 21:55:00,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:55:00,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:55:00,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:55:00,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:55:00,631 INFO L87 Difference]: Start difference. First operand 50034 states and 106146 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:55:01,807 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:55:02,080 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:55:02,787 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:55:03,108 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-01-20 21:55:03,706 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-01-20 21:55:04,022 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 21:55:04,441 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2021-01-20 21:55:04,614 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-01-20 21:55:04,831 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2021-01-20 21:55:05,771 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2021-01-20 21:55:06,028 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2021-01-20 21:55:06,381 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2021-01-20 21:55:06,698 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:55:06,896 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-01-20 21:55:08,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:55:08,749 INFO L93 Difference]: Finished difference Result 50147 states and 106331 transitions. [2021-01-20 21:55:08,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-01-20 21:55:08,751 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:55:08,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:55:08,752 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 643 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=552, Invalid=2640, Unknown=0, NotChecked=0, Total=3192 [2021-01-20 21:55:08,752 INFO L78 Accepts]: Start accepts. Automaton has 50147 states and 106331 transitions. Word has length 115 [2021-01-20 21:55:08,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:55:08,752 INFO L481 AbstractCegarLoop]: Abstraction has 50147 states and 106331 transitions. [2021-01-20 21:55:08,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:55:08,753 INFO L276 IsEmpty]: Start isEmpty. Operand 50147 states and 106331 transitions. [2021-01-20 21:55:08,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:55:08,790 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:55:08,791 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:55:08,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-01-20 21:55:08,791 INFO L429 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]=== [2021-01-20 21:55:08,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:55:08,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1645953021, now seen corresponding path program 43 times [2021-01-20 21:55:08,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:55:08,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899905571] [2021-01-20 21:55:08,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:55:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:55:11,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:55:11,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899905571] [2021-01-20 21:55:11,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:55:11,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:55:11,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302133735] [2021-01-20 21:55:11,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:55:11,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:55:11,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:55:11,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:55:11,054 INFO L87 Difference]: Start difference. First operand 50147 states and 106331 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:55:12,243 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:55:12,526 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:55:13,249 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:55:13,553 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-01-20 21:55:14,131 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-01-20 21:55:14,457 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:55:14,759 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-01-20 21:55:14,937 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:55:15,173 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:55:15,794 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-01-20 21:55:16,052 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:55:16,747 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 21:55:16,942 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-01-20 21:55:17,206 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-01-20 21:55:19,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:55:19,173 INFO L93 Difference]: Finished difference Result 50444 states and 106808 transitions. [2021-01-20 21:55:19,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-01-20 21:55:19,175 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:55:19,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:55:19,176 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 685 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=578, Invalid=2728, Unknown=0, NotChecked=0, Total=3306 [2021-01-20 21:55:19,176 INFO L78 Accepts]: Start accepts. Automaton has 50444 states and 106808 transitions. Word has length 115 [2021-01-20 21:55:19,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:55:19,176 INFO L481 AbstractCegarLoop]: Abstraction has 50444 states and 106808 transitions. [2021-01-20 21:55:19,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:55:19,176 INFO L276 IsEmpty]: Start isEmpty. Operand 50444 states and 106808 transitions. [2021-01-20 21:55:19,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:55:19,232 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:55:19,232 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:55:19,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-01-20 21:55:19,232 INFO L429 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]=== [2021-01-20 21:55:19,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:55:19,233 INFO L82 PathProgramCache]: Analyzing trace with hash 706854653, now seen corresponding path program 44 times [2021-01-20 21:55:19,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:55:19,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860877449] [2021-01-20 21:55:19,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:55:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:55:20,123 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 30 [2021-01-20 21:55:20,255 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 30 [2021-01-20 21:55:21,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:55:21,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860877449] [2021-01-20 21:55:21,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:55:21,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:55:21,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048937531] [2021-01-20 21:55:21,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:55:21,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:55:21,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:55:21,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:55:21,881 INFO L87 Difference]: Start difference. First operand 50444 states and 106808 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:55:22,873 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2021-01-20 21:55:23,105 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:55:23,406 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:55:24,151 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:55:24,493 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-01-20 21:55:25,106 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-01-20 21:55:25,412 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-20 21:55:25,704 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-01-20 21:55:25,883 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:55:26,123 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 21:55:26,912 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-01-20 21:55:27,165 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 21:55:27,951 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-01-20 21:55:28,310 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2021-01-20 21:55:28,568 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-01-20 21:55:28,839 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-01-20 21:55:30,081 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-01-20 21:55:30,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:55:30,921 INFO L93 Difference]: Finished difference Result 50440 states and 106804 transitions. [2021-01-20 21:55:30,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-01-20 21:55:30,922 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:55:30,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:55:30,923 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 714 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=590, Invalid=2832, Unknown=0, NotChecked=0, Total=3422 [2021-01-20 21:55:30,923 INFO L78 Accepts]: Start accepts. Automaton has 50440 states and 106804 transitions. Word has length 115 [2021-01-20 21:55:30,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:55:30,924 INFO L481 AbstractCegarLoop]: Abstraction has 50440 states and 106804 transitions. [2021-01-20 21:55:30,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:55:30,924 INFO L276 IsEmpty]: Start isEmpty. Operand 50440 states and 106804 transitions. [2021-01-20 21:55:30,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:55:30,965 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:55:30,965 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:55:30,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-01-20 21:55:30,966 INFO L429 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]=== [2021-01-20 21:55:30,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:55:30,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1162967685, now seen corresponding path program 45 times [2021-01-20 21:55:30,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:55:30,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511745342] [2021-01-20 21:55:30,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:55:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:55:31,656 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2021-01-20 21:55:31,783 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2021-01-20 21:55:33,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:55:33,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511745342] [2021-01-20 21:55:33,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:55:33,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:55:33,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378623981] [2021-01-20 21:55:33,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:55:33,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:55:33,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:55:33,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:55:33,346 INFO L87 Difference]: Start difference. First operand 50440 states and 106804 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:55:33,821 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2021-01-20 21:55:34,705 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:55:35,016 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:55:35,813 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:55:36,182 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-01-20 21:55:36,789 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-01-20 21:55:37,049 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 21:55:37,280 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-01-20 21:55:38,109 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:55:38,417 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2021-01-20 21:55:38,589 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 21:55:38,831 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2021-01-20 21:55:39,310 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-01-20 21:55:39,633 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:55:41,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:55:41,987 INFO L93 Difference]: Finished difference Result 50645 states and 107167 transitions. [2021-01-20 21:55:41,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-01-20 21:55:41,989 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:55:41,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:55:41,990 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 641 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=552, Invalid=2640, Unknown=0, NotChecked=0, Total=3192 [2021-01-20 21:55:41,990 INFO L78 Accepts]: Start accepts. Automaton has 50645 states and 107167 transitions. Word has length 115 [2021-01-20 21:55:41,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:55:41,990 INFO L481 AbstractCegarLoop]: Abstraction has 50645 states and 107167 transitions. [2021-01-20 21:55:41,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:55:41,990 INFO L276 IsEmpty]: Start isEmpty. Operand 50645 states and 107167 transitions. [2021-01-20 21:55:42,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:55:42,038 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:55:42,039 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:55:42,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-01-20 21:55:42,039 INFO L429 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]=== [2021-01-20 21:55:42,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:55:42,039 INFO L82 PathProgramCache]: Analyzing trace with hash 769827453, now seen corresponding path program 46 times [2021-01-20 21:55:42,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:55:42,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501932319] [2021-01-20 21:55:42,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:55:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:55:42,758 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2021-01-20 21:55:42,897 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2021-01-20 21:55:44,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:55:44,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501932319] [2021-01-20 21:55:44,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:55:44,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:55:44,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920600822] [2021-01-20 21:55:44,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:55:44,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:55:44,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:55:44,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:55:44,542 INFO L87 Difference]: Start difference. First operand 50645 states and 107167 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:55:45,714 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:55:46,047 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:55:46,823 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:55:47,170 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-01-20 21:55:47,821 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-01-20 21:55:48,113 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:55:48,938 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2021-01-20 21:55:49,141 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:55:49,507 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-01-20 21:55:49,818 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-01-20 21:55:50,128 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-01-20 21:55:50,338 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:55:50,630 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:55:50,881 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:55:51,060 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-01-20 21:55:52,228 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2021-01-20 21:55:53,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:55:53,042 INFO L93 Difference]: Finished difference Result 50843 states and 107513 transitions. [2021-01-20 21:55:53,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-01-20 21:55:53,044 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:55:53,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:55:53,045 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=598, Invalid=2708, Unknown=0, NotChecked=0, Total=3306 [2021-01-20 21:55:53,045 INFO L78 Accepts]: Start accepts. Automaton has 50843 states and 107513 transitions. Word has length 115 [2021-01-20 21:55:53,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:55:53,046 INFO L481 AbstractCegarLoop]: Abstraction has 50843 states and 107513 transitions. [2021-01-20 21:55:53,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:55:53,046 INFO L276 IsEmpty]: Start isEmpty. Operand 50843 states and 107513 transitions. [2021-01-20 21:55:53,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:55:53,093 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:55:53,093 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:55:53,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-01-20 21:55:53,093 INFO L429 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]=== [2021-01-20 21:55:53,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:55:53,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1124412019, now seen corresponding path program 47 times [2021-01-20 21:55:53,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:55:53,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626376867] [2021-01-20 21:55:53,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:55:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:55:54,711 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 23 [2021-01-20 21:55:55,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:55:55,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626376867] [2021-01-20 21:55:55,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:55:55,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:55:55,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424390731] [2021-01-20 21:55:55,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:55:55,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:55:55,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:55:55,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:55:55,783 INFO L87 Difference]: Start difference. First operand 50843 states and 107513 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:55:56,923 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2021-01-20 21:55:57,184 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:55:57,528 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:55:58,365 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:55:58,697 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-01-20 21:55:59,344 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-01-20 21:55:59,651 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2021-01-20 21:56:00,360 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2021-01-20 21:56:00,568 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:56:00,828 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:56:01,173 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2021-01-20 21:56:01,347 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 21:56:01,582 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2021-01-20 21:56:02,257 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-01-20 21:56:02,575 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:56:04,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:56:04,610 INFO L93 Difference]: Finished difference Result 51044 states and 107868 transitions. [2021-01-20 21:56:04,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-01-20 21:56:04,612 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:56:04,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:56:04,613 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 663 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=582, Invalid=2724, Unknown=0, NotChecked=0, Total=3306 [2021-01-20 21:56:04,613 INFO L78 Accepts]: Start accepts. Automaton has 51044 states and 107868 transitions. Word has length 115 [2021-01-20 21:56:04,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:56:04,614 INFO L481 AbstractCegarLoop]: Abstraction has 51044 states and 107868 transitions. [2021-01-20 21:56:04,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:56:04,614 INFO L276 IsEmpty]: Start isEmpty. Operand 51044 states and 107868 transitions. [2021-01-20 21:56:04,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:56:04,667 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:56:04,668 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:56:04,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-01-20 21:56:04,668 INFO L429 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]=== [2021-01-20 21:56:04,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:56:04,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1018891771, now seen corresponding path program 48 times [2021-01-20 21:56:04,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:56:04,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165943282] [2021-01-20 21:56:04,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:56:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:56:06,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:56:06,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165943282] [2021-01-20 21:56:06,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:56:06,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:56:06,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067298543] [2021-01-20 21:56:06,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:56:06,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:56:06,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:56:06,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:56:06,891 INFO L87 Difference]: Start difference. First operand 51044 states and 107868 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:56:07,625 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 27 [2021-01-20 21:56:08,027 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2021-01-20 21:56:08,278 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:56:08,605 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:56:09,406 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:56:09,750 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-01-20 21:56:10,833 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2021-01-20 21:56:11,220 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 63 [2021-01-20 21:56:11,855 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-01-20 21:56:12,143 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:56:12,401 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:56:12,731 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:56:13,026 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:56:13,207 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-01-20 21:56:14,584 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2021-01-20 21:56:15,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:56:15,272 INFO L93 Difference]: Finished difference Result 51212 states and 108100 transitions. [2021-01-20 21:56:15,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-01-20 21:56:15,273 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:56:15,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:56:15,274 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=533, Invalid=2437, Unknown=0, NotChecked=0, Total=2970 [2021-01-20 21:56:15,274 INFO L78 Accepts]: Start accepts. Automaton has 51212 states and 108100 transitions. Word has length 115 [2021-01-20 21:56:15,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:56:15,275 INFO L481 AbstractCegarLoop]: Abstraction has 51212 states and 108100 transitions. [2021-01-20 21:56:15,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:56:15,275 INFO L276 IsEmpty]: Start isEmpty. Operand 51212 states and 108100 transitions. [2021-01-20 21:56:15,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:56:15,321 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:56:15,322 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:56:15,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-01-20 21:56:15,322 INFO L429 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]=== [2021-01-20 21:56:15,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:56:15,322 INFO L82 PathProgramCache]: Analyzing trace with hash -508500269, now seen corresponding path program 49 times [2021-01-20 21:56:15,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:56:15,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18997814] [2021-01-20 21:56:15,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:56:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:56:16,062 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2021-01-20 21:56:17,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:56:17,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18997814] [2021-01-20 21:56:17,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:56:17,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:56:17,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105493079] [2021-01-20 21:56:17,875 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:56:17,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:56:17,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:56:17,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:56:17,876 INFO L87 Difference]: Start difference. First operand 51212 states and 108100 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:56:19,020 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2021-01-20 21:56:19,280 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:56:19,634 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:56:20,573 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:56:20,913 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-01-20 21:56:22,039 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2021-01-20 21:56:22,488 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-01-20 21:56:22,856 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-01-20 21:56:23,079 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:56:23,357 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-01-20 21:56:23,580 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2021-01-20 21:56:23,781 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-01-20 21:56:24,097 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-01-20 21:56:24,393 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:56:26,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:56:26,571 INFO L93 Difference]: Finished difference Result 51380 states and 108332 transitions. [2021-01-20 21:56:26,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-01-20 21:56:26,572 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:56:26,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:56:26,573 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=573, Invalid=2619, Unknown=0, NotChecked=0, Total=3192 [2021-01-20 21:56:26,573 INFO L78 Accepts]: Start accepts. Automaton has 51380 states and 108332 transitions. Word has length 115 [2021-01-20 21:56:26,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:56:26,573 INFO L481 AbstractCegarLoop]: Abstraction has 51380 states and 108332 transitions. [2021-01-20 21:56:26,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:56:26,573 INFO L276 IsEmpty]: Start isEmpty. Operand 51380 states and 108332 transitions. [2021-01-20 21:56:26,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:56:26,620 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:56:26,620 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:56:26,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-01-20 21:56:26,620 INFO L429 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]=== [2021-01-20 21:56:26,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:56:26,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1892227555, now seen corresponding path program 50 times [2021-01-20 21:56:26,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:56:26,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75228696] [2021-01-20 21:56:26,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:56:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:56:27,377 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2021-01-20 21:56:27,511 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2021-01-20 21:56:28,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:56:28,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75228696] [2021-01-20 21:56:28,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:56:28,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-01-20 21:56:28,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980166342] [2021-01-20 21:56:28,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-01-20 21:56:28,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:56:28,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-01-20 21:56:28,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-01-20 21:56:28,983 INFO L87 Difference]: Start difference. First operand 51380 states and 108332 transitions. Second operand has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:56:30,102 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2021-01-20 21:56:30,399 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2021-01-20 21:56:31,246 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 50 [2021-01-20 21:56:31,577 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2021-01-20 21:56:32,552 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2021-01-20 21:56:33,004 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-01-20 21:56:33,293 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:56:33,530 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2021-01-20 21:56:33,680 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2021-01-20 21:56:33,907 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2021-01-20 21:56:34,354 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2021-01-20 21:56:34,667 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2021-01-20 21:56:34,842 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-01-20 21:56:36,713 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2021-01-20 21:56:36,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:56:36,825 INFO L93 Difference]: Finished difference Result 51386 states and 108338 transitions. [2021-01-20 21:56:36,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-01-20 21:56:36,826 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-01-20 21:56:36,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:56:36,827 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=539, Invalid=2541, Unknown=0, NotChecked=0, Total=3080 [2021-01-20 21:56:36,827 INFO L78 Accepts]: Start accepts. Automaton has 51386 states and 108338 transitions. Word has length 115 [2021-01-20 21:56:36,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:56:36,827 INFO L481 AbstractCegarLoop]: Abstraction has 51386 states and 108338 transitions. [2021-01-20 21:56:36,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.423076923076923) internal successors, (115), 26 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:56:36,828 INFO L276 IsEmpty]: Start isEmpty. Operand 51386 states and 108338 transitions. [2021-01-20 21:56:36,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-01-20 21:56:36,877 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:56:36,877 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 21:56:36,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-01-20 21:56:36,877 INFO L429 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]=== [2021-01-20 21:56:36,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:56:36,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1312858423, now seen corresponding path program 51 times [2021-01-20 21:56:36,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:56:36,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179112133] [2021-01-20 21:56:36,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:56:36,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:56:38,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:56:38,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179112133] [2021-01-20 21:56:38,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:56:38,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 21:56:38,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272491242] [2021-01-20 21:56:38,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 21:56:38,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:56:38,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 21:56:38,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=500, Unknown=0, NotChecked=0, Total=552 [2021-01-20 21:56:38,902 INFO L87 Difference]: Start difference. First operand 51386 states and 108338 transitions. Second operand has 24 states, 24 states have (on average 4.791666666666667) internal successors, (115), 24 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 21:56:40,027 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2021-01-20 21:56:40,327 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2021-01-20 21:56:41,097 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 52 [2021-01-20 21:56:41,403 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2021-01-20 21:56:42,374 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 60 [2021-01-20 21:56:42,714 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-01-20 21:56:43,299 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-01-20 21:56:43,600 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-01-20 21:56:43,808 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 21:56:44,121 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 21:56:44,374 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 Received shutdown request... [2021-01-20 21:56:45,265 WARN L210 SmtUtils]: Removed 15 from assertion stack [2021-01-20 21:56:45,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 21:56:45,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-01-20 21:56:45,266 WARN L546 AbstractCegarLoop]: Verification canceled [2021-01-20 21:56:45,270 WARN L250 ceAbstractionStarter]: Timeout [2021-01-20 21:56:45,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:56:45 BasicIcfg [2021-01-20 21:56:45,271 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:56:45,272 INFO L168 Benchmark]: Toolchain (without parser) took 643462.14 ms. Allocated memory was 302.0 MB in the beginning and 3.7 GB in the end (delta: 3.4 GB). Free memory was 274.5 MB in the beginning and 482.3 MB in the end (delta: -207.8 MB). Peak memory consumption was 3.1 GB. Max. memory is 16.0 GB. [2021-01-20 21:56:45,272 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:56:45,272 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1640.06 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 165.0 MB in the end (delta: 109.2 MB). Peak memory consumption was 108.4 MB. Max. memory is 16.0 GB. [2021-01-20 21:56:45,272 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.18 ms. Allocated memory is still 302.0 MB. Free memory was 165.0 MB in the beginning and 161.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:56:45,272 INFO L168 Benchmark]: Boogie Preprocessor took 59.33 ms. Allocated memory is still 302.0 MB. Free memory was 161.9 MB in the beginning and 158.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-01-20 21:56:45,273 INFO L168 Benchmark]: RCFGBuilder took 797.94 ms. Allocated memory was 302.0 MB in the beginning and 388.0 MB in the end (delta: 86.0 MB). Free memory was 158.7 MB in the beginning and 345.4 MB in the end (delta: -186.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-01-20 21:56:45,273 INFO L168 Benchmark]: TraceAbstraction took 640858.11 ms. Allocated memory was 388.0 MB in the beginning and 3.7 GB in the end (delta: 3.3 GB). Free memory was 344.3 MB in the beginning and 482.3 MB in the end (delta: -138.0 MB). Peak memory consumption was 3.1 GB. Max. memory is 16.0 GB. [2021-01-20 21:56:45,274 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 1640.06 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 165.0 MB in the end (delta: 109.2 MB). Peak memory consumption was 108.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 98.18 ms. Allocated memory is still 302.0 MB. Free memory was 165.0 MB in the beginning and 161.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 59.33 ms. Allocated memory is still 302.0 MB. Free memory was 161.9 MB in the beginning and 158.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 797.94 ms. Allocated memory was 302.0 MB in the beginning and 388.0 MB in the end (delta: 86.0 MB). Free memory was 158.7 MB in the beginning and 345.4 MB in the end (delta: -186.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 640858.11 ms. Allocated memory was 388.0 MB in the beginning and 3.7 GB in the end (delta: 3.3 GB). Free memory was 344.3 MB in the beginning and 482.3 MB in the end (delta: -138.0 MB). Peak memory consumption was 3.1 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1691]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1691). Cancelled while BasicCegarLoop was constructing difference of abstraction (51386states) and FLOYD_HOARE automaton (currently 27 states, 24 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 41 for 15ms.. - TimeoutResultAtElement [Line: 1691]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1691). Cancelled while BasicCegarLoop was constructing difference of abstraction (51386states) and FLOYD_HOARE automaton (currently 27 states, 24 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 41 for 15ms.. - TimeoutResultAtElement [Line: 1691]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1691). Cancelled while BasicCegarLoop was constructing difference of abstraction (51386states) and FLOYD_HOARE automaton (currently 27 states, 24 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 41 for 15ms.. - TimeoutResultAtElement [Line: 1691]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1691). Cancelled while BasicCegarLoop was constructing difference of abstraction (51386states) and FLOYD_HOARE automaton (currently 27 states, 24 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 41 for 15ms.. - TimeoutResultAtElement [Line: 1691]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1691). Cancelled while BasicCegarLoop was constructing difference of abstraction (51386states) and FLOYD_HOARE automaton (currently 27 states, 24 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 41 for 15ms.. - TimeoutResultAtElement [Line: 1691]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1691). Cancelled while BasicCegarLoop was constructing difference of abstraction (51386states) and FLOYD_HOARE automaton (currently 27 states, 24 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 41 for 15ms.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 158 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 640.6s, OverallIterations: 99, TraceHistogramMax: 1, AutomataDifference: 492.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 25058 SDtfs, 87530 SDslu, 234957 SDs, 0 SdLazy, 125242 SolverSat, 8201 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 130.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4845 GetRequests, 395 SyntacticMatches, 165 SemanticMatches, 4284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39919 ImplicationChecksByTransitivity, 404.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57804occurred in iteration=67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 132.1s InterpolantComputationTime, 10840 NumberOfCodeBlocks, 10840 NumberOfCodeBlocksAsserted, 99 NumberOfCheckSat, 10741 ConstructedInterpolants, 0 QuantifiedInterpolants, 20636505 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 99 InterpolantComputations, 99 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 !SESSION 2021-01-20 21:45:58.176 ----------------------------------------------- eclipse.buildId=unknown java.version=11.0.9 java.vendor=AdoptOpenJDK BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_GB Framework arguments: -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i Command-line arguments: -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i !ENTRY org.eclipse.osgi 4 0 2021-01-20 21:56:45.544 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7350d6fe/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7350d6fe/.metadata/.log.