/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 23:47:53,415 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 23:47:53,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 23:47:53,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 23:47:53,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-21 23:47:53,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-21 23:47:53,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-21 23:47:53,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-21 23:47:53,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-21 23:47:53,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-21 23:47:53,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-21 23:47:53,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-21 23:47:53,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-21 23:47:53,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-21 23:47:53,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-21 23:47:53,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-21 23:47:53,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-21 23:47:53,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 23:47:53,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 23:47:53,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 23:47:53,490 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-Separate.epf [2021-05-21 23:47:53,517 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 23:47:53,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 23:47:53,518 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 23:47:53,518 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 23:47:53,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 23:47:53,520 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 23:47:53,520 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 23:47:53,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 23:47:53,520 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 23:47:53,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 23:47:53,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 23:47:53,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 23:47:53,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 23:47:53,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 23:47:53,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 23:47:53,521 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 23:47:53,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 23:47:53,522 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 23:47:53,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 23:47:53,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 23:47:53,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 23:47:53,522 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 23:47:53,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 23:47:53,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 23:47:53,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 23:47:53,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 23:47:53,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 23:47:53,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 23:47:53,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 23:47:53,523 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 23:47:53,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 23:47:53,523 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-05-21 23:47:53,523 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 23:47:53,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 23:47:53,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 23:47:53,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 23:47:53,784 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 23:47:53,784 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 23:47:53,785 INFO L432 ainManager$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 [2021-05-21 23:47:53,824 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65d9f8684/3dbee8b797c54a2b86deec0d03831415/FLAGca3057174 [2021-05-21 23:47:54,315 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 23:47:54,315 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-05-21 23:47:54,334 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65d9f8684/3dbee8b797c54a2b86deec0d03831415/FLAGca3057174 [2021-05-21 23:47:54,348 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65d9f8684/3dbee8b797c54a2b86deec0d03831415 [2021-05-21 23:47:54,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 23:47:54,352 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 23:47:54,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 23:47:54,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 23:47:54,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 23:47:54,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 11:47:54" (1/1) ... [2021-05-21 23:47:54,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a678978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:47:54, skipping insertion in model container [2021-05-21 23:47:54,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 11:47:54" (1/1) ... [2021-05-21 23:47:54,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 23:47:54,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 23:47:54,850 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2021-05-21 23:47:54,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 23:47:54,868 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 23:47:54,899 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2021-05-21 23:47:54,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 23:47:55,084 INFO L208 MainTranslator]: Completed translation [2021-05-21 23:47:55,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:47:55 WrapperNode [2021-05-21 23:47:55,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 23:47:55,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 23:47:55,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 23:47:55,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 23:47:55,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:47:55" (1/1) ... [2021-05-21 23:47:55,111 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:47:55" (1/1) ... [2021-05-21 23:47:55,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 23:47:55,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 23:47:55,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 23:47:55,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 23:47:55,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:47:55" (1/1) ... [2021-05-21 23:47:55,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:47:55" (1/1) ... [2021-05-21 23:47:55,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:47:55" (1/1) ... [2021-05-21 23:47:55,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:47:55" (1/1) ... [2021-05-21 23:47:55,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:47:55" (1/1) ... [2021-05-21 23:47:55,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:47:55" (1/1) ... [2021-05-21 23:47:55,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:47:55" (1/1) ... [2021-05-21 23:47:55,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 23:47:55,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 23:47:55,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 23:47:55,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 23:47:55,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:47:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 23:47:55,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 23:47:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-21 23:47:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-05-21 23:47:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-05-21 23:47:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 23:47:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 23:47:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-05-21 23:47:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-05-21 23:47:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 23:47:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 23:47:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 23:47:55,216 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 23:47:55,704 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 23:47:55,705 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-05-21 23:47:55,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 11:47:55 BoogieIcfgContainer [2021-05-21 23:47:55,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 23:47:55,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 23:47:55,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 23:47:55,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 23:47:55,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 11:47:54" (1/3) ... [2021-05-21 23:47:55,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f222043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 11:47:55, skipping insertion in model container [2021-05-21 23:47:55,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 11:47:55" (2/3) ... [2021-05-21 23:47:55,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f222043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 11:47:55, skipping insertion in model container [2021-05-21 23:47:55,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 11:47:55" (3/3) ... [2021-05-21 23:47:55,710 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2021-05-21 23:47:55,714 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 23:47:55,714 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 23:47:55,714 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-05-21 23:47:55,714 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 23:47:55,734 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,734 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,734 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,734 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,734 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,735 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,735 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,735 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,735 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,735 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,735 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,735 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,735 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,735 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,735 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,735 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,736 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,736 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,736 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,736 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,736 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,736 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,736 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,736 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,736 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,736 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,736 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,736 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,737 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,737 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,737 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,737 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,737 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,737 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,737 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,737 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,737 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,737 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,737 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,738 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,738 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,738 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,738 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,738 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,738 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,738 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,738 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,738 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,738 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,738 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,739 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,739 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,739 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,739 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,739 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,739 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,739 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,739 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,739 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,739 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,739 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,740 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,740 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,740 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,740 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,740 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,740 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,740 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,740 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,740 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,740 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,740 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,740 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,741 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,741 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,741 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,741 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,741 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,741 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,741 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,741 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,741 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,741 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,741 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,741 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,742 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,742 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,742 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,742 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,742 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,742 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,742 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,742 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,742 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,742 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,742 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,743 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,743 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,743 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,743 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,743 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,743 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,743 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,743 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,743 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,743 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,743 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,744 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,744 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,744 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,744 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,744 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,744 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,744 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,744 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,744 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,746 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,746 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,746 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,746 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,746 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,746 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,746 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,746 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,746 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,746 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,749 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,750 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,750 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,750 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,750 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 23:47:55,777 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-05-21 23:47:55,791 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-05-21 23:47:55,811 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 23:47:55,811 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 23:47:55,811 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 23:47:55,811 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 23:47:55,811 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 23:47:55,812 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 23:47:55,812 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 23:47:55,812 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 23:47:55,827 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 166 places, 170 transitions, 362 flow [2021-05-21 23:47:56,057 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8182 states, 8171 states have (on average 2.8338024721576307) internal successors, (23155), 8181 states have internal predecessors, (23155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:47:56,087 INFO L276 IsEmpty]: Start isEmpty. Operand has 8182 states, 8171 states have (on average 2.8338024721576307) internal successors, (23155), 8181 states have internal predecessors, (23155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:47:56,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-21 23:47:56,094 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:47:56,095 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:47:56,095 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:47:56,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:47:56,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1624038893, now seen corresponding path program 1 times [2021-05-21 23:47:56,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:47:56,105 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021039401] [2021-05-21 23:47:56,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:47:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:47:56,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:47:56,415 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:47:56,415 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021039401] [2021-05-21 23:47:56,415 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021039401] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:47:56,415 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:47:56,415 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:47:56,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658720475] [2021-05-21 23:47:56,418 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:47:56,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:47:56,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:47:56,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:47:56,445 INFO L87 Difference]: Start difference. First operand has 8182 states, 8171 states have (on average 2.8338024721576307) internal successors, (23155), 8181 states have internal predecessors, (23155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:47:56,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:47:56,644 INFO L93 Difference]: Finished difference Result 7787 states and 21633 transitions. [2021-05-21 23:47:56,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 23:47:56,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-05-21 23:47:56,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:47:56,678 INFO L225 Difference]: With dead ends: 7787 [2021-05-21 23:47:56,678 INFO L226 Difference]: Without dead ends: 6398 [2021-05-21 23:47:56,679 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 64.9ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:47:56,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6398 states. [2021-05-21 23:47:56,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6398 to 6397. [2021-05-21 23:47:56,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6397 states, 6390 states have (on average 2.769170579029734) internal successors, (17695), 6396 states have internal predecessors, (17695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:47:56,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6397 states to 6397 states and 17695 transitions. [2021-05-21 23:47:56,883 INFO L78 Accepts]: Start accepts. Automaton has 6397 states and 17695 transitions. Word has length 36 [2021-05-21 23:47:56,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:47:56,883 INFO L482 AbstractCegarLoop]: Abstraction has 6397 states and 17695 transitions. [2021-05-21 23:47:56,884 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:47:56,884 INFO L276 IsEmpty]: Start isEmpty. Operand 6397 states and 17695 transitions. [2021-05-21 23:47:56,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-05-21 23:47:56,884 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:47:56,885 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:47:56,885 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 23:47:56,885 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:47:56,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:47:56,885 INFO L82 PathProgramCache]: Analyzing trace with hash -652027726, now seen corresponding path program 1 times [2021-05-21 23:47:56,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:47:56,886 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594403739] [2021-05-21 23:47:56,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:47:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:47:56,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:47:56,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:47:56,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594403739] [2021-05-21 23:47:56,960 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594403739] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:47:56,960 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:47:56,960 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:47:56,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419252576] [2021-05-21 23:47:56,961 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:47:56,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:47:56,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:47:56,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:47:56,962 INFO L87 Difference]: Start difference. First operand 6397 states and 17695 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:47:57,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:47:57,156 INFO L93 Difference]: Finished difference Result 6399 states and 17697 transitions. [2021-05-21 23:47:57,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 23:47:57,157 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-05-21 23:47:57,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:47:57,176 INFO L225 Difference]: With dead ends: 6399 [2021-05-21 23:47:57,176 INFO L226 Difference]: Without dead ends: 6399 [2021-05-21 23:47:57,177 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 52.1ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-05-21 23:47:57,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6399 states. [2021-05-21 23:47:57,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6399 to 6395. [2021-05-21 23:47:57,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6395 states, 6389 states have (on average 2.7692909688527156) internal successors, (17693), 6394 states have internal predecessors, (17693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:47:57,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6395 states to 6395 states and 17693 transitions. [2021-05-21 23:47:57,313 INFO L78 Accepts]: Start accepts. Automaton has 6395 states and 17693 transitions. Word has length 42 [2021-05-21 23:47:57,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:47:57,314 INFO L482 AbstractCegarLoop]: Abstraction has 6395 states and 17693 transitions. [2021-05-21 23:47:57,314 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:47:57,316 INFO L276 IsEmpty]: Start isEmpty. Operand 6395 states and 17693 transitions. [2021-05-21 23:47:57,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-05-21 23:47:57,319 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:47:57,320 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:47:57,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 23:47:57,324 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:47:57,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:47:57,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1629089851, now seen corresponding path program 1 times [2021-05-21 23:47:57,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:47:57,327 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609709997] [2021-05-21 23:47:57,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:47:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:47:57,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:47:57,473 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:47:57,473 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609709997] [2021-05-21 23:47:57,473 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609709997] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:47:57,473 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:47:57,473 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:47:57,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21331128] [2021-05-21 23:47:57,474 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:47:57,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:47:57,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:47:57,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:47:57,475 INFO L87 Difference]: Start difference. First operand 6395 states and 17693 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:47:57,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:47:57,733 INFO L93 Difference]: Finished difference Result 9382 states and 25923 transitions. [2021-05-21 23:47:57,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-21 23:47:57,734 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-05-21 23:47:57,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:47:57,759 INFO L225 Difference]: With dead ends: 9382 [2021-05-21 23:47:57,760 INFO L226 Difference]: Without dead ends: 9382 [2021-05-21 23:47:57,760 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 79.5ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:47:57,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9382 states. [2021-05-21 23:47:57,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9382 to 7177. [2021-05-21 23:47:57,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7177 states, 7172 states have (on average 2.7711935303959843) internal successors, (19875), 7176 states have internal predecessors, (19875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:47:57,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7177 states to 7177 states and 19875 transitions. [2021-05-21 23:47:57,941 INFO L78 Accepts]: Start accepts. Automaton has 7177 states and 19875 transitions. Word has length 60 [2021-05-21 23:47:57,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:47:57,941 INFO L482 AbstractCegarLoop]: Abstraction has 7177 states and 19875 transitions. [2021-05-21 23:47:57,941 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:47:57,941 INFO L276 IsEmpty]: Start isEmpty. Operand 7177 states and 19875 transitions. [2021-05-21 23:47:57,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-05-21 23:47:57,943 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:47:57,943 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:47:57,943 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 23:47:57,943 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:47:57,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:47:57,944 INFO L82 PathProgramCache]: Analyzing trace with hash 157318948, now seen corresponding path program 1 times [2021-05-21 23:47:57,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:47:57,944 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679946936] [2021-05-21 23:47:57,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:47:57,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:47:58,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:47:58,003 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:47:58,003 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679946936] [2021-05-21 23:47:58,003 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679946936] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:47:58,003 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:47:58,003 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 23:47:58,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302226058] [2021-05-21 23:47:58,004 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 23:47:58,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:47:58,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 23:47:58,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 23:47:58,004 INFO L87 Difference]: Start difference. First operand 7177 states and 19875 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:47:58,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:47:58,207 INFO L93 Difference]: Finished difference Result 10164 states and 27958 transitions. [2021-05-21 23:47:58,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 23:47:58,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-05-21 23:47:58,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:47:58,223 INFO L225 Difference]: With dead ends: 10164 [2021-05-21 23:47:58,223 INFO L226 Difference]: Without dead ends: 8547 [2021-05-21 23:47:58,223 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 50.0ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-05-21 23:47:58,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8547 states. [2021-05-21 23:47:58,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8547 to 8253. [2021-05-21 23:47:58,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8253 states, 8249 states have (on average 2.7752454843011276) internal successors, (22893), 8252 states have internal predecessors, (22893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:47:58,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8253 states to 8253 states and 22893 transitions. [2021-05-21 23:47:58,435 INFO L78 Accepts]: Start accepts. Automaton has 8253 states and 22893 transitions. Word has length 66 [2021-05-21 23:47:58,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:47:58,436 INFO L482 AbstractCegarLoop]: Abstraction has 8253 states and 22893 transitions. [2021-05-21 23:47:58,436 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:47:58,437 INFO L276 IsEmpty]: Start isEmpty. Operand 8253 states and 22893 transitions. [2021-05-21 23:47:58,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-05-21 23:47:58,443 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:47:58,443 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:47:58,443 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 23:47:58,443 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:47:58,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:47:58,444 INFO L82 PathProgramCache]: Analyzing trace with hash -930332059, now seen corresponding path program 1 times [2021-05-21 23:47:58,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:47:58,444 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024488234] [2021-05-21 23:47:58,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:47:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:47:58,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:47:58,520 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:47:58,520 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024488234] [2021-05-21 23:47:58,520 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024488234] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:47:58,521 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:47:58,521 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-21 23:47:58,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613325468] [2021-05-21 23:47:58,522 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-21 23:47:58,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:47:58,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-21 23:47:58,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-21 23:47:58,522 INFO L87 Difference]: Start difference. First operand 8253 states and 22893 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:47:58,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:47:58,557 INFO L93 Difference]: Finished difference Result 3039 states and 8148 transitions. [2021-05-21 23:47:58,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-21 23:47:58,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-05-21 23:47:58,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:47:58,562 INFO L225 Difference]: With dead ends: 3039 [2021-05-21 23:47:58,562 INFO L226 Difference]: Without dead ends: 3039 [2021-05-21 23:47:58,563 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 22.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-05-21 23:47:58,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3039 states. [2021-05-21 23:47:58,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3039 to 3039. [2021-05-21 23:47:58,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3039 states, 3037 states have (on average 2.6829107672044783) internal successors, (8148), 3038 states have internal predecessors, (8148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:47:58,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3039 states to 3039 states and 8148 transitions. [2021-05-21 23:47:58,660 INFO L78 Accepts]: Start accepts. Automaton has 3039 states and 8148 transitions. Word has length 80 [2021-05-21 23:47:58,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:47:58,662 INFO L482 AbstractCegarLoop]: Abstraction has 3039 states and 8148 transitions. [2021-05-21 23:47:58,662 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:47:58,662 INFO L276 IsEmpty]: Start isEmpty. Operand 3039 states and 8148 transitions. [2021-05-21 23:47:58,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:47:58,669 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:47:58,669 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:47:58,670 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 23:47:58,670 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:47:58,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:47:58,673 INFO L82 PathProgramCache]: Analyzing trace with hash 2018724715, now seen corresponding path program 1 times [2021-05-21 23:47:58,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:47:58,673 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281612464] [2021-05-21 23:47:58,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:47:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:47:59,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:47:59,123 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:47:59,123 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281612464] [2021-05-21 23:47:59,123 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281612464] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:47:59,123 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:47:59,123 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-05-21 23:47:59,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077055284] [2021-05-21 23:47:59,124 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-21 23:47:59,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:47:59,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-21 23:47:59,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:47:59,125 INFO L87 Difference]: Start difference. First operand 3039 states and 8148 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:47:59,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:47:59,889 INFO L93 Difference]: Finished difference Result 4138 states and 10679 transitions. [2021-05-21 23:47:59,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-21 23:47:59,890 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:47:59,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:47:59,909 INFO L225 Difference]: With dead ends: 4138 [2021-05-21 23:47:59,910 INFO L226 Difference]: Without dead ends: 4138 [2021-05-21 23:47:59,910 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 528.8ms TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2021-05-21 23:47:59,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4138 states. [2021-05-21 23:47:59,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4138 to 3698. [2021-05-21 23:47:59,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3698 states, 3696 states have (on average 2.643668831168831) internal successors, (9771), 3697 states have internal predecessors, (9771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:47:59,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3698 states to 3698 states and 9771 transitions. [2021-05-21 23:47:59,961 INFO L78 Accepts]: Start accepts. Automaton has 3698 states and 9771 transitions. Word has length 113 [2021-05-21 23:47:59,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:47:59,962 INFO L482 AbstractCegarLoop]: Abstraction has 3698 states and 9771 transitions. [2021-05-21 23:47:59,962 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:47:59,962 INFO L276 IsEmpty]: Start isEmpty. Operand 3698 states and 9771 transitions. [2021-05-21 23:47:59,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:47:59,967 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:47:59,968 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:47:59,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 23:47:59,968 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:47:59,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:47:59,968 INFO L82 PathProgramCache]: Analyzing trace with hash -551749779, now seen corresponding path program 2 times [2021-05-21 23:47:59,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:47:59,968 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937597521] [2021-05-21 23:47:59,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:47:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:00,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:00,359 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:00,359 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937597521] [2021-05-21 23:48:00,359 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937597521] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:00,359 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:00,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:00,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927676197] [2021-05-21 23:48:00,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:00,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:00,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:00,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:00,360 INFO L87 Difference]: Start difference. First operand 3698 states and 9771 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:01,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:01,788 INFO L93 Difference]: Finished difference Result 6254 states and 16298 transitions. [2021-05-21 23:48:01,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-21 23:48:01,789 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:01,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:01,801 INFO L225 Difference]: With dead ends: 6254 [2021-05-21 23:48:01,802 INFO L226 Difference]: Without dead ends: 6254 [2021-05-21 23:48:01,802 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1074.0ms TimeCoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2021-05-21 23:48:01,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6254 states. [2021-05-21 23:48:01,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6254 to 4483. [2021-05-21 23:48:01,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4483 states, 4481 states have (on average 2.673733541620174) internal successors, (11981), 4482 states have internal predecessors, (11981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:01,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4483 states to 4483 states and 11981 transitions. [2021-05-21 23:48:01,895 INFO L78 Accepts]: Start accepts. Automaton has 4483 states and 11981 transitions. Word has length 113 [2021-05-21 23:48:01,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:01,896 INFO L482 AbstractCegarLoop]: Abstraction has 4483 states and 11981 transitions. [2021-05-21 23:48:01,896 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:01,896 INFO L276 IsEmpty]: Start isEmpty. Operand 4483 states and 11981 transitions. [2021-05-21 23:48:01,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:01,903 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:01,903 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:01,903 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-21 23:48:01,903 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:01,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:01,904 INFO L82 PathProgramCache]: Analyzing trace with hash 805277953, now seen corresponding path program 3 times [2021-05-21 23:48:01,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:01,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133383773] [2021-05-21 23:48:01,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:01,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:02,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:02,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:02,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133383773] [2021-05-21 23:48:02,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133383773] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:02,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:02,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-05-21 23:48:02,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380894511] [2021-05-21 23:48:02,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-21 23:48:02,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:02,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-21 23:48:02,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:48:02,237 INFO L87 Difference]: Start difference. First operand 4483 states and 11981 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:02,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:02,876 INFO L93 Difference]: Finished difference Result 5390 states and 13897 transitions. [2021-05-21 23:48:02,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-21 23:48:02,877 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:02,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:02,884 INFO L225 Difference]: With dead ends: 5390 [2021-05-21 23:48:02,884 INFO L226 Difference]: Without dead ends: 5390 [2021-05-21 23:48:02,884 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 458.7ms TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2021-05-21 23:48:02,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5390 states. [2021-05-21 23:48:02,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5390 to 4516. [2021-05-21 23:48:02,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4516 states, 4514 states have (on average 2.671466548515729) internal successors, (12059), 4515 states have internal predecessors, (12059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:02,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 12059 transitions. [2021-05-21 23:48:02,960 INFO L78 Accepts]: Start accepts. Automaton has 4516 states and 12059 transitions. Word has length 113 [2021-05-21 23:48:02,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:02,961 INFO L482 AbstractCegarLoop]: Abstraction has 4516 states and 12059 transitions. [2021-05-21 23:48:02,961 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:02,961 INFO L276 IsEmpty]: Start isEmpty. Operand 4516 states and 12059 transitions. [2021-05-21 23:48:02,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:02,968 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:02,968 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:02,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-21 23:48:02,968 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:02,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:02,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1321380929, now seen corresponding path program 4 times [2021-05-21 23:48:02,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:02,969 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514896739] [2021-05-21 23:48:02,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:03,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:03,370 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:03,370 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514896739] [2021-05-21 23:48:03,370 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514896739] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:03,371 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:03,371 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:03,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699260083] [2021-05-21 23:48:03,371 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:03,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:03,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:03,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:03,372 INFO L87 Difference]: Start difference. First operand 4516 states and 12059 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:04,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:04,824 INFO L93 Difference]: Finished difference Result 6181 states and 15940 transitions. [2021-05-21 23:48:04,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-21 23:48:04,824 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:04,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:04,830 INFO L225 Difference]: With dead ends: 6181 [2021-05-21 23:48:04,830 INFO L226 Difference]: Without dead ends: 6181 [2021-05-21 23:48:04,830 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1061.1ms TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-05-21 23:48:04,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6181 states. [2021-05-21 23:48:04,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6181 to 4526. [2021-05-21 23:48:04,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4526 states, 4524 states have (on average 2.6710875331564985) internal successors, (12084), 4525 states have internal predecessors, (12084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:04,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4526 states to 4526 states and 12084 transitions. [2021-05-21 23:48:04,899 INFO L78 Accepts]: Start accepts. Automaton has 4526 states and 12084 transitions. Word has length 113 [2021-05-21 23:48:04,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:04,900 INFO L482 AbstractCegarLoop]: Abstraction has 4526 states and 12084 transitions. [2021-05-21 23:48:04,900 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:04,900 INFO L276 IsEmpty]: Start isEmpty. Operand 4526 states and 12084 transitions. [2021-05-21 23:48:04,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:04,906 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:04,907 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:04,907 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-05-21 23:48:04,907 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:04,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:04,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1510292627, now seen corresponding path program 5 times [2021-05-21 23:48:04,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:04,907 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164399575] [2021-05-21 23:48:04,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:05,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:05,185 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:05,185 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164399575] [2021-05-21 23:48:05,185 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164399575] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:05,185 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:05,185 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-05-21 23:48:05,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741611730] [2021-05-21 23:48:05,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-21 23:48:05,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:05,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-21 23:48:05,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:48:05,186 INFO L87 Difference]: Start difference. First operand 4526 states and 12084 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:05,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:05,808 INFO L93 Difference]: Finished difference Result 4980 states and 13019 transitions. [2021-05-21 23:48:05,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-21 23:48:05,809 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:05,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:05,814 INFO L225 Difference]: With dead ends: 4980 [2021-05-21 23:48:05,815 INFO L226 Difference]: Without dead ends: 4980 [2021-05-21 23:48:05,815 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 460.9ms TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-05-21 23:48:05,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4980 states. [2021-05-21 23:48:05,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4980 to 4394. [2021-05-21 23:48:05,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4394 states, 4392 states have (on average 2.680327868852459) internal successors, (11772), 4393 states have internal predecessors, (11772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:05,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4394 states to 4394 states and 11772 transitions. [2021-05-21 23:48:05,881 INFO L78 Accepts]: Start accepts. Automaton has 4394 states and 11772 transitions. Word has length 113 [2021-05-21 23:48:05,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:05,881 INFO L482 AbstractCegarLoop]: Abstraction has 4394 states and 11772 transitions. [2021-05-21 23:48:05,881 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:05,881 INFO L276 IsEmpty]: Start isEmpty. Operand 4394 states and 11772 transitions. [2021-05-21 23:48:05,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:05,888 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:05,888 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:05,888 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-05-21 23:48:05,888 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:05,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:05,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1917779761, now seen corresponding path program 6 times [2021-05-21 23:48:05,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:05,889 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437997435] [2021-05-21 23:48:05,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:05,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:06,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:06,262 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:06,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437997435] [2021-05-21 23:48:06,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437997435] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:06,262 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:06,262 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:06,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505287322] [2021-05-21 23:48:06,263 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:06,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:06,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:06,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:06,263 INFO L87 Difference]: Start difference. First operand 4394 states and 11772 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:07,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:07,276 INFO L93 Difference]: Finished difference Result 5437 states and 13948 transitions. [2021-05-21 23:48:07,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-21 23:48:07,277 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:07,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:07,280 INFO L225 Difference]: With dead ends: 5437 [2021-05-21 23:48:07,280 INFO L226 Difference]: Without dead ends: 5437 [2021-05-21 23:48:07,281 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 793.6ms TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2021-05-21 23:48:07,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2021-05-21 23:48:07,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 4424. [2021-05-21 23:48:07,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4424 states, 4422 states have (on average 2.6791044776119404) internal successors, (11847), 4423 states have internal predecessors, (11847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:07,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4424 states to 4424 states and 11847 transitions. [2021-05-21 23:48:07,344 INFO L78 Accepts]: Start accepts. Automaton has 4424 states and 11847 transitions. Word has length 113 [2021-05-21 23:48:07,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:07,344 INFO L482 AbstractCegarLoop]: Abstraction has 4424 states and 11847 transitions. [2021-05-21 23:48:07,344 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:07,344 INFO L276 IsEmpty]: Start isEmpty. Operand 4424 states and 11847 transitions. [2021-05-21 23:48:07,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:07,350 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:07,350 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:07,350 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-05-21 23:48:07,350 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:07,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:07,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1710433517, now seen corresponding path program 7 times [2021-05-21 23:48:07,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:07,351 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151484694] [2021-05-21 23:48:07,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:07,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:07,680 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:07,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151484694] [2021-05-21 23:48:07,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151484694] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:07,680 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:07,680 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:07,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067121577] [2021-05-21 23:48:07,681 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:07,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:07,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:07,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:07,682 INFO L87 Difference]: Start difference. First operand 4424 states and 11847 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:08,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:08,916 INFO L93 Difference]: Finished difference Result 10454 states and 27256 transitions. [2021-05-21 23:48:08,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-21 23:48:08,917 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:08,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:08,926 INFO L225 Difference]: With dead ends: 10454 [2021-05-21 23:48:08,926 INFO L226 Difference]: Without dead ends: 10454 [2021-05-21 23:48:08,927 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1014.8ms TimeCoverageRelationStatistics Valid=287, Invalid=769, Unknown=0, NotChecked=0, Total=1056 [2021-05-21 23:48:08,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10454 states. [2021-05-21 23:48:09,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10454 to 4496. [2021-05-21 23:48:09,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4496 states, 4494 states have (on average 2.684245660881175) internal successors, (12063), 4495 states have internal predecessors, (12063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:09,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4496 states to 4496 states and 12063 transitions. [2021-05-21 23:48:09,022 INFO L78 Accepts]: Start accepts. Automaton has 4496 states and 12063 transitions. Word has length 113 [2021-05-21 23:48:09,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:09,022 INFO L482 AbstractCegarLoop]: Abstraction has 4496 states and 12063 transitions. [2021-05-21 23:48:09,022 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:09,022 INFO L276 IsEmpty]: Start isEmpty. Operand 4496 states and 12063 transitions. [2021-05-21 23:48:09,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:09,027 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:09,028 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:09,028 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-05-21 23:48:09,028 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:09,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:09,028 INFO L82 PathProgramCache]: Analyzing trace with hash 162697191, now seen corresponding path program 8 times [2021-05-21 23:48:09,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:09,028 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62843186] [2021-05-21 23:48:09,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:09,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:09,364 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:09,364 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62843186] [2021-05-21 23:48:09,364 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62843186] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:09,364 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:09,364 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:09,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560268222] [2021-05-21 23:48:09,364 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:09,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:09,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:09,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:09,365 INFO L87 Difference]: Start difference. First operand 4496 states and 12063 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:10,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:10,702 INFO L93 Difference]: Finished difference Result 9577 states and 24842 transitions. [2021-05-21 23:48:10,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-21 23:48:10,703 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:10,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:10,711 INFO L225 Difference]: With dead ends: 9577 [2021-05-21 23:48:10,711 INFO L226 Difference]: Without dead ends: 9577 [2021-05-21 23:48:10,712 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1042.0ms TimeCoverageRelationStatistics Valid=296, Invalid=826, Unknown=0, NotChecked=0, Total=1122 [2021-05-21 23:48:10,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9577 states. [2021-05-21 23:48:10,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9577 to 4436. [2021-05-21 23:48:10,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4436 states, 4434 states have (on average 2.6799729364005414) internal successors, (11883), 4435 states have internal predecessors, (11883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:10,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4436 states to 4436 states and 11883 transitions. [2021-05-21 23:48:10,797 INFO L78 Accepts]: Start accepts. Automaton has 4436 states and 11883 transitions. Word has length 113 [2021-05-21 23:48:10,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:10,797 INFO L482 AbstractCegarLoop]: Abstraction has 4436 states and 11883 transitions. [2021-05-21 23:48:10,797 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:10,797 INFO L276 IsEmpty]: Start isEmpty. Operand 4436 states and 11883 transitions. [2021-05-21 23:48:10,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:10,802 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:10,802 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:10,802 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-05-21 23:48:10,802 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:10,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:10,802 INFO L82 PathProgramCache]: Analyzing trace with hash -513811625, now seen corresponding path program 9 times [2021-05-21 23:48:10,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:10,803 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866181614] [2021-05-21 23:48:10,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:11,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:11,126 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:11,126 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866181614] [2021-05-21 23:48:11,126 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866181614] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:11,126 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:11,126 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:11,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884552088] [2021-05-21 23:48:11,127 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:11,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:11,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:11,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:11,127 INFO L87 Difference]: Start difference. First operand 4436 states and 11883 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:13,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:13,008 INFO L93 Difference]: Finished difference Result 9044 states and 23337 transitions. [2021-05-21 23:48:13,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-05-21 23:48:13,009 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:13,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:13,014 INFO L225 Difference]: With dead ends: 9044 [2021-05-21 23:48:13,015 INFO L226 Difference]: Without dead ends: 9044 [2021-05-21 23:48:13,015 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1445.7ms TimeCoverageRelationStatistics Valid=435, Invalid=1125, Unknown=0, NotChecked=0, Total=1560 [2021-05-21 23:48:13,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9044 states. [2021-05-21 23:48:13,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9044 to 4575. [2021-05-21 23:48:13,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4575 states, 4573 states have (on average 2.684014869888476) internal successors, (12274), 4574 states have internal predecessors, (12274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:13,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4575 states to 4575 states and 12274 transitions. [2021-05-21 23:48:13,090 INFO L78 Accepts]: Start accepts. Automaton has 4575 states and 12274 transitions. Word has length 113 [2021-05-21 23:48:13,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:13,090 INFO L482 AbstractCegarLoop]: Abstraction has 4575 states and 12274 transitions. [2021-05-21 23:48:13,090 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:13,090 INFO L276 IsEmpty]: Start isEmpty. Operand 4575 states and 12274 transitions. [2021-05-21 23:48:13,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:13,095 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:13,095 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:13,095 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-05-21 23:48:13,095 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:13,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:13,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1668934599, now seen corresponding path program 10 times [2021-05-21 23:48:13,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:13,096 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096584955] [2021-05-21 23:48:13,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:13,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:13,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:13,423 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:13,423 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096584955] [2021-05-21 23:48:13,423 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096584955] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:13,423 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:13,424 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:13,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106720345] [2021-05-21 23:48:13,424 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:13,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:13,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:13,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:13,424 INFO L87 Difference]: Start difference. First operand 4575 states and 12274 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:14,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:14,739 INFO L93 Difference]: Finished difference Result 7287 states and 18606 transitions. [2021-05-21 23:48:14,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-21 23:48:14,739 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:14,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:14,746 INFO L225 Difference]: With dead ends: 7287 [2021-05-21 23:48:14,746 INFO L226 Difference]: Without dead ends: 7287 [2021-05-21 23:48:14,746 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1046.8ms TimeCoverageRelationStatistics Valid=321, Invalid=869, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 23:48:14,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7287 states. [2021-05-21 23:48:14,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7287 to 4581. [2021-05-21 23:48:14,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4581 states, 4579 states have (on average 2.6837737497270147) internal successors, (12289), 4580 states have internal predecessors, (12289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:14,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4581 states to 4581 states and 12289 transitions. [2021-05-21 23:48:14,813 INFO L78 Accepts]: Start accepts. Automaton has 4581 states and 12289 transitions. Word has length 113 [2021-05-21 23:48:14,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:14,813 INFO L482 AbstractCegarLoop]: Abstraction has 4581 states and 12289 transitions. [2021-05-21 23:48:14,813 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:14,813 INFO L276 IsEmpty]: Start isEmpty. Operand 4581 states and 12289 transitions. [2021-05-21 23:48:14,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:14,819 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:14,819 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:14,819 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-05-21 23:48:14,819 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:14,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:14,819 INFO L82 PathProgramCache]: Analyzing trace with hash -20191337, now seen corresponding path program 11 times [2021-05-21 23:48:14,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:14,819 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144815427] [2021-05-21 23:48:14,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:15,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:15,143 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:15,143 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144815427] [2021-05-21 23:48:15,145 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144815427] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:15,145 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:15,145 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:15,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322545360] [2021-05-21 23:48:15,145 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:15,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:15,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:15,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:15,146 INFO L87 Difference]: Start difference. First operand 4581 states and 12289 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:16,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:16,309 INFO L93 Difference]: Finished difference Result 7156 states and 18133 transitions. [2021-05-21 23:48:16,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-21 23:48:16,313 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:16,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:16,318 INFO L225 Difference]: With dead ends: 7156 [2021-05-21 23:48:16,318 INFO L226 Difference]: Without dead ends: 7156 [2021-05-21 23:48:16,318 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 904.4ms TimeCoverageRelationStatistics Valid=285, Invalid=837, Unknown=0, NotChecked=0, Total=1122 [2021-05-21 23:48:16,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7156 states. [2021-05-21 23:48:16,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7156 to 4583. [2021-05-21 23:48:16,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4583 states, 4581 states have (on average 2.6836935166994107) internal successors, (12294), 4582 states have internal predecessors, (12294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:16,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4583 states to 4583 states and 12294 transitions. [2021-05-21 23:48:16,382 INFO L78 Accepts]: Start accepts. Automaton has 4583 states and 12294 transitions. Word has length 113 [2021-05-21 23:48:16,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:16,382 INFO L482 AbstractCegarLoop]: Abstraction has 4583 states and 12294 transitions. [2021-05-21 23:48:16,382 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:16,382 INFO L276 IsEmpty]: Start isEmpty. Operand 4583 states and 12294 transitions. [2021-05-21 23:48:16,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:16,388 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:16,388 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:16,388 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-05-21 23:48:16,388 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:16,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:16,388 INFO L82 PathProgramCache]: Analyzing trace with hash -254383661, now seen corresponding path program 12 times [2021-05-21 23:48:16,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:16,388 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699320107] [2021-05-21 23:48:16,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:16,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:16,717 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:16,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699320107] [2021-05-21 23:48:16,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699320107] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:16,717 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:16,717 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:16,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668732561] [2021-05-21 23:48:16,717 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:16,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:16,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:16,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:16,718 INFO L87 Difference]: Start difference. First operand 4583 states and 12294 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:17,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:17,943 INFO L93 Difference]: Finished difference Result 6999 states and 17778 transitions. [2021-05-21 23:48:17,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-21 23:48:17,943 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:17,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:17,949 INFO L225 Difference]: With dead ends: 6999 [2021-05-21 23:48:17,950 INFO L226 Difference]: Without dead ends: 6999 [2021-05-21 23:48:17,950 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 962.2ms TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 23:48:17,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6999 states. [2021-05-21 23:48:18,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6999 to 4583. [2021-05-21 23:48:18,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4583 states, 4581 states have (on average 2.6836935166994107) internal successors, (12294), 4582 states have internal predecessors, (12294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:18,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4583 states to 4583 states and 12294 transitions. [2021-05-21 23:48:18,012 INFO L78 Accepts]: Start accepts. Automaton has 4583 states and 12294 transitions. Word has length 113 [2021-05-21 23:48:18,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:18,012 INFO L482 AbstractCegarLoop]: Abstraction has 4583 states and 12294 transitions. [2021-05-21 23:48:18,012 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:18,012 INFO L276 IsEmpty]: Start isEmpty. Operand 4583 states and 12294 transitions. [2021-05-21 23:48:18,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:18,018 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:18,018 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:18,018 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-05-21 23:48:18,018 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:18,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:18,018 INFO L82 PathProgramCache]: Analyzing trace with hash 202832805, now seen corresponding path program 13 times [2021-05-21 23:48:18,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:18,018 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623713136] [2021-05-21 23:48:18,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:18,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:18,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:18,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623713136] [2021-05-21 23:48:18,365 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623713136] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:18,365 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:18,365 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:18,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816579601] [2021-05-21 23:48:18,365 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:18,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:18,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:18,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:18,366 INFO L87 Difference]: Start difference. First operand 4583 states and 12294 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:19,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:19,319 INFO L93 Difference]: Finished difference Result 6304 states and 15945 transitions. [2021-05-21 23:48:19,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-21 23:48:19,319 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:19,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:19,324 INFO L225 Difference]: With dead ends: 6304 [2021-05-21 23:48:19,324 INFO L226 Difference]: Without dead ends: 6304 [2021-05-21 23:48:19,325 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 753.0ms TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-05-21 23:48:19,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6304 states. [2021-05-21 23:48:19,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6304 to 4589. [2021-05-21 23:48:19,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4589 states, 4587 states have (on average 2.683453237410072) internal successors, (12309), 4588 states have internal predecessors, (12309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:19,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4589 states to 4589 states and 12309 transitions. [2021-05-21 23:48:19,385 INFO L78 Accepts]: Start accepts. Automaton has 4589 states and 12309 transitions. Word has length 113 [2021-05-21 23:48:19,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:19,385 INFO L482 AbstractCegarLoop]: Abstraction has 4589 states and 12309 transitions. [2021-05-21 23:48:19,386 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:19,386 INFO L276 IsEmpty]: Start isEmpty. Operand 4589 states and 12309 transitions. [2021-05-21 23:48:19,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:19,390 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:19,390 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:19,390 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-05-21 23:48:19,390 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:19,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:19,391 INFO L82 PathProgramCache]: Analyzing trace with hash -587035673, now seen corresponding path program 14 times [2021-05-21 23:48:19,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:19,391 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437323855] [2021-05-21 23:48:19,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:19,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:19,726 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:19,726 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437323855] [2021-05-21 23:48:19,726 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437323855] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:19,726 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:19,726 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:19,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317908664] [2021-05-21 23:48:19,727 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:19,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:19,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:19,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:19,728 INFO L87 Difference]: Start difference. First operand 4589 states and 12309 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:20,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:20,768 INFO L93 Difference]: Finished difference Result 6426 states and 16176 transitions. [2021-05-21 23:48:20,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-21 23:48:20,769 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:20,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:20,774 INFO L225 Difference]: With dead ends: 6426 [2021-05-21 23:48:20,774 INFO L226 Difference]: Without dead ends: 6426 [2021-05-21 23:48:20,775 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 732.9ms TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-05-21 23:48:20,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6426 states. [2021-05-21 23:48:20,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6426 to 4591. [2021-05-21 23:48:20,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4591 states, 4589 states have (on average 2.683373283939856) internal successors, (12314), 4590 states have internal predecessors, (12314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:20,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4591 states to 4591 states and 12314 transitions. [2021-05-21 23:48:20,837 INFO L78 Accepts]: Start accepts. Automaton has 4591 states and 12314 transitions. Word has length 113 [2021-05-21 23:48:20,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:20,837 INFO L482 AbstractCegarLoop]: Abstraction has 4591 states and 12314 transitions. [2021-05-21 23:48:20,837 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:20,838 INFO L276 IsEmpty]: Start isEmpty. Operand 4591 states and 12314 transitions. [2021-05-21 23:48:20,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:20,841 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:20,841 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:20,841 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-05-21 23:48:20,841 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:20,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:20,842 INFO L82 PathProgramCache]: Analyzing trace with hash -821227997, now seen corresponding path program 15 times [2021-05-21 23:48:20,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:20,842 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028481616] [2021-05-21 23:48:20,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:21,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:21,158 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:21,158 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028481616] [2021-05-21 23:48:21,158 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028481616] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:21,158 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:21,158 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:21,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16537073] [2021-05-21 23:48:21,158 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:21,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:21,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:21,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:21,159 INFO L87 Difference]: Start difference. First operand 4591 states and 12314 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:22,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:22,166 INFO L93 Difference]: Finished difference Result 6096 states and 15461 transitions. [2021-05-21 23:48:22,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-21 23:48:22,166 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:22,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:22,171 INFO L225 Difference]: With dead ends: 6096 [2021-05-21 23:48:22,171 INFO L226 Difference]: Without dead ends: 6096 [2021-05-21 23:48:22,171 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 779.1ms TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 23:48:22,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6096 states. [2021-05-21 23:48:22,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6096 to 4589. [2021-05-21 23:48:22,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4589 states, 4587 states have (on average 2.683453237410072) internal successors, (12309), 4588 states have internal predecessors, (12309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:22,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4589 states to 4589 states and 12309 transitions. [2021-05-21 23:48:22,226 INFO L78 Accepts]: Start accepts. Automaton has 4589 states and 12309 transitions. Word has length 113 [2021-05-21 23:48:22,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:22,227 INFO L482 AbstractCegarLoop]: Abstraction has 4589 states and 12309 transitions. [2021-05-21 23:48:22,227 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:22,227 INFO L276 IsEmpty]: Start isEmpty. Operand 4589 states and 12309 transitions. [2021-05-21 23:48:22,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:22,231 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:22,231 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:22,231 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-05-21 23:48:22,231 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:22,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:22,231 INFO L82 PathProgramCache]: Analyzing trace with hash 81809679, now seen corresponding path program 16 times [2021-05-21 23:48:22,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:22,231 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459192708] [2021-05-21 23:48:22,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:22,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:22,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:22,547 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:22,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459192708] [2021-05-21 23:48:22,547 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459192708] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:22,547 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:22,547 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:22,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744201533] [2021-05-21 23:48:22,548 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:22,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:22,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:22,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:22,548 INFO L87 Difference]: Start difference. First operand 4589 states and 12309 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:23,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:23,802 INFO L93 Difference]: Finished difference Result 8284 states and 21529 transitions. [2021-05-21 23:48:23,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-21 23:48:23,802 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:23,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:23,810 INFO L225 Difference]: With dead ends: 8284 [2021-05-21 23:48:23,810 INFO L226 Difference]: Without dead ends: 8284 [2021-05-21 23:48:23,810 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1007.6ms TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2021-05-21 23:48:23,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8284 states. [2021-05-21 23:48:23,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8284 to 4589. [2021-05-21 23:48:23,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4589 states, 4587 states have (on average 2.683453237410072) internal successors, (12309), 4588 states have internal predecessors, (12309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:23,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4589 states to 4589 states and 12309 transitions. [2021-05-21 23:48:23,880 INFO L78 Accepts]: Start accepts. Automaton has 4589 states and 12309 transitions. Word has length 113 [2021-05-21 23:48:23,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:23,881 INFO L482 AbstractCegarLoop]: Abstraction has 4589 states and 12309 transitions. [2021-05-21 23:48:23,881 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:23,881 INFO L276 IsEmpty]: Start isEmpty. Operand 4589 states and 12309 transitions. [2021-05-21 23:48:23,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:23,884 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:23,885 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:23,885 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-05-21 23:48:23,885 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:23,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:23,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1954940387, now seen corresponding path program 17 times [2021-05-21 23:48:23,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:23,885 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866241509] [2021-05-21 23:48:23,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:24,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:24,200 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:24,201 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866241509] [2021-05-21 23:48:24,201 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866241509] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:24,201 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:24,201 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:24,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69452141] [2021-05-21 23:48:24,201 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:24,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:24,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:24,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:24,202 INFO L87 Difference]: Start difference. First operand 4589 states and 12309 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:24,955 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2021-05-21 23:48:25,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:25,522 INFO L93 Difference]: Finished difference Result 7407 states and 19115 transitions. [2021-05-21 23:48:25,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-21 23:48:25,523 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:25,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:25,529 INFO L225 Difference]: With dead ends: 7407 [2021-05-21 23:48:25,529 INFO L226 Difference]: Without dead ends: 7407 [2021-05-21 23:48:25,529 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1120.2ms TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2021-05-21 23:48:25,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7407 states. [2021-05-21 23:48:25,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7407 to 4529. [2021-05-21 23:48:25,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4529 states, 4527 states have (on average 2.6792577866136513) internal successors, (12129), 4528 states have internal predecessors, (12129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:25,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4529 states to 4529 states and 12129 transitions. [2021-05-21 23:48:25,599 INFO L78 Accepts]: Start accepts. Automaton has 4529 states and 12129 transitions. Word has length 113 [2021-05-21 23:48:25,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:25,599 INFO L482 AbstractCegarLoop]: Abstraction has 4529 states and 12129 transitions. [2021-05-21 23:48:25,599 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:25,599 INFO L276 IsEmpty]: Start isEmpty. Operand 4529 states and 12129 transitions. [2021-05-21 23:48:25,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:25,603 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:25,603 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:25,603 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-05-21 23:48:25,603 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:25,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:25,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1278431571, now seen corresponding path program 18 times [2021-05-21 23:48:25,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:25,604 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735153698] [2021-05-21 23:48:25,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:25,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:25,917 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:25,917 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735153698] [2021-05-21 23:48:25,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735153698] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:25,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:25,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:25,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728381149] [2021-05-21 23:48:25,917 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:25,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:25,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:25,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:25,918 INFO L87 Difference]: Start difference. First operand 4529 states and 12129 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:27,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:27,775 INFO L93 Difference]: Finished difference Result 10995 states and 28419 transitions. [2021-05-21 23:48:27,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-05-21 23:48:27,775 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:27,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:27,785 INFO L225 Difference]: With dead ends: 10995 [2021-05-21 23:48:27,785 INFO L226 Difference]: Without dead ends: 10995 [2021-05-21 23:48:27,786 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1438.4ms TimeCoverageRelationStatistics Valid=434, Invalid=1126, Unknown=0, NotChecked=0, Total=1560 [2021-05-21 23:48:27,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10995 states. [2021-05-21 23:48:27,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10995 to 4565. [2021-05-21 23:48:27,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4565 states, 4563 states have (on average 2.6817882971729126) internal successors, (12237), 4564 states have internal predecessors, (12237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:27,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4565 states to 4565 states and 12237 transitions. [2021-05-21 23:48:27,872 INFO L78 Accepts]: Start accepts. Automaton has 4565 states and 12237 transitions. Word has length 113 [2021-05-21 23:48:27,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:27,873 INFO L482 AbstractCegarLoop]: Abstraction has 4565 states and 12237 transitions. [2021-05-21 23:48:27,873 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:27,873 INFO L276 IsEmpty]: Start isEmpty. Operand 4565 states and 12237 transitions. [2021-05-21 23:48:27,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:27,876 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:27,876 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:27,876 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-05-21 23:48:27,876 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:27,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:27,877 INFO L82 PathProgramCache]: Analyzing trace with hash -833789501, now seen corresponding path program 19 times [2021-05-21 23:48:27,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:27,877 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109012446] [2021-05-21 23:48:27,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:27,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:28,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:28,197 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:28,197 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109012446] [2021-05-21 23:48:28,197 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109012446] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:28,197 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:28,197 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:28,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436588773] [2021-05-21 23:48:28,197 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:28,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:28,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:28,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:28,198 INFO L87 Difference]: Start difference. First operand 4565 states and 12237 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:29,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:29,530 INFO L93 Difference]: Finished difference Result 9238 states and 23688 transitions. [2021-05-21 23:48:29,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-21 23:48:29,530 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:29,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:29,538 INFO L225 Difference]: With dead ends: 9238 [2021-05-21 23:48:29,539 INFO L226 Difference]: Without dead ends: 9238 [2021-05-21 23:48:29,539 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1054.5ms TimeCoverageRelationStatistics Valid=320, Invalid=870, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 23:48:29,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9238 states. [2021-05-21 23:48:29,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9238 to 4529. [2021-05-21 23:48:29,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4529 states, 4527 states have (on average 2.6792577866136513) internal successors, (12129), 4528 states have internal predecessors, (12129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:29,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4529 states to 4529 states and 12129 transitions. [2021-05-21 23:48:29,610 INFO L78 Accepts]: Start accepts. Automaton has 4529 states and 12129 transitions. Word has length 113 [2021-05-21 23:48:29,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:29,610 INFO L482 AbstractCegarLoop]: Abstraction has 4529 states and 12129 transitions. [2021-05-21 23:48:29,610 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:29,610 INFO L276 IsEmpty]: Start isEmpty. Operand 4529 states and 12129 transitions. [2021-05-21 23:48:29,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:29,614 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:29,614 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:29,614 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-05-21 23:48:29,614 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:29,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:29,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1772051859, now seen corresponding path program 20 times [2021-05-21 23:48:29,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:29,614 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305862212] [2021-05-21 23:48:29,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:29,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:29,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:29,938 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:29,938 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305862212] [2021-05-21 23:48:29,938 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305862212] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:29,938 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:29,939 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:29,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464623093] [2021-05-21 23:48:29,939 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:29,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:29,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:29,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:29,939 INFO L87 Difference]: Start difference. First operand 4529 states and 12129 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:31,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:31,083 INFO L93 Difference]: Finished difference Result 8169 states and 20857 transitions. [2021-05-21 23:48:31,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-21 23:48:31,083 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:31,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:31,088 INFO L225 Difference]: With dead ends: 8169 [2021-05-21 23:48:31,088 INFO L226 Difference]: Without dead ends: 8169 [2021-05-21 23:48:31,089 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 898.9ms TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2021-05-21 23:48:31,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8169 states. [2021-05-21 23:48:31,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8169 to 4531. [2021-05-21 23:48:31,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4531 states, 4529 states have (on average 2.679178626628395) internal successors, (12134), 4530 states have internal predecessors, (12134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:31,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4531 states to 4531 states and 12134 transitions. [2021-05-21 23:48:31,150 INFO L78 Accepts]: Start accepts. Automaton has 4531 states and 12134 transitions. Word has length 113 [2021-05-21 23:48:31,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:31,151 INFO L482 AbstractCegarLoop]: Abstraction has 4531 states and 12134 transitions. [2021-05-21 23:48:31,151 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:31,151 INFO L276 IsEmpty]: Start isEmpty. Operand 4531 states and 12134 transitions. [2021-05-21 23:48:31,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:31,154 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:31,154 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:31,155 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-05-21 23:48:31,155 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:31,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:31,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1537859535, now seen corresponding path program 21 times [2021-05-21 23:48:31,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:31,155 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886758593] [2021-05-21 23:48:31,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:31,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:31,443 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:31,443 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886758593] [2021-05-21 23:48:31,443 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886758593] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:31,443 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:31,443 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:31,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727488181] [2021-05-21 23:48:31,444 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:31,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:31,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:31,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:31,444 INFO L87 Difference]: Start difference. First operand 4531 states and 12134 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:32,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:32,624 INFO L93 Difference]: Finished difference Result 8044 states and 20567 transitions. [2021-05-21 23:48:32,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-21 23:48:32,624 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:32,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:32,631 INFO L225 Difference]: With dead ends: 8044 [2021-05-21 23:48:32,631 INFO L226 Difference]: Without dead ends: 8044 [2021-05-21 23:48:32,632 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 973.5ms TimeCoverageRelationStatistics Valid=309, Invalid=881, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 23:48:32,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8044 states. [2021-05-21 23:48:32,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8044 to 4517. [2021-05-21 23:48:32,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4517 states, 4515 states have (on average 2.678405315614618) internal successors, (12093), 4516 states have internal predecessors, (12093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:32,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4517 states to 4517 states and 12093 transitions. [2021-05-21 23:48:32,701 INFO L78 Accepts]: Start accepts. Automaton has 4517 states and 12093 transitions. Word has length 113 [2021-05-21 23:48:32,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:32,701 INFO L482 AbstractCegarLoop]: Abstraction has 4517 states and 12093 transitions. [2021-05-21 23:48:32,701 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:32,701 INFO L276 IsEmpty]: Start isEmpty. Operand 4517 states and 12093 transitions. [2021-05-21 23:48:32,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:32,705 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:32,705 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:32,705 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-05-21 23:48:32,705 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:32,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:32,706 INFO L82 PathProgramCache]: Analyzing trace with hash -223166485, now seen corresponding path program 22 times [2021-05-21 23:48:32,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:32,706 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347145959] [2021-05-21 23:48:32,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:33,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:33,016 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:33,016 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347145959] [2021-05-21 23:48:33,016 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347145959] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:33,016 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:33,016 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:33,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603639325] [2021-05-21 23:48:33,016 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:33,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:33,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:33,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:33,017 INFO L87 Difference]: Start difference. First operand 4517 states and 12093 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:34,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:34,977 INFO L93 Difference]: Finished difference Result 6936 states and 17741 transitions. [2021-05-21 23:48:34,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:48:34,977 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:34,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:34,983 INFO L225 Difference]: With dead ends: 6936 [2021-05-21 23:48:34,983 INFO L226 Difference]: Without dead ends: 6936 [2021-05-21 23:48:34,984 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1518.1ms TimeCoverageRelationStatistics Valid=470, Invalid=1252, Unknown=0, NotChecked=0, Total=1722 [2021-05-21 23:48:34,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6936 states. [2021-05-21 23:48:35,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6936 to 3470. [2021-05-21 23:48:35,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3470 states, 3468 states have (on average 2.631487889273356) internal successors, (9126), 3469 states have internal predecessors, (9126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:35,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3470 states to 3470 states and 9126 transitions. [2021-05-21 23:48:35,035 INFO L78 Accepts]: Start accepts. Automaton has 3470 states and 9126 transitions. Word has length 113 [2021-05-21 23:48:35,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:35,035 INFO L482 AbstractCegarLoop]: Abstraction has 3470 states and 9126 transitions. [2021-05-21 23:48:35,035 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:35,035 INFO L276 IsEmpty]: Start isEmpty. Operand 3470 states and 9126 transitions. [2021-05-21 23:48:35,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:35,038 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:35,038 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:35,038 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-05-21 23:48:35,039 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:35,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:35,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1959579739, now seen corresponding path program 23 times [2021-05-21 23:48:35,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:35,039 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835229311] [2021-05-21 23:48:35,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:35,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:35,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:35,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:35,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835229311] [2021-05-21 23:48:35,347 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835229311] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:35,347 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:35,347 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:35,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120524651] [2021-05-21 23:48:35,347 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:35,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:35,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:35,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:35,348 INFO L87 Difference]: Start difference. First operand 3470 states and 9126 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:37,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:37,135 INFO L93 Difference]: Finished difference Result 7509 states and 18951 transitions. [2021-05-21 23:48:37,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:48:37,135 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:37,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:37,142 INFO L225 Difference]: With dead ends: 7509 [2021-05-21 23:48:37,142 INFO L226 Difference]: Without dead ends: 7509 [2021-05-21 23:48:37,143 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 1434.0ms TimeCoverageRelationStatistics Valid=459, Invalid=1263, Unknown=0, NotChecked=0, Total=1722 [2021-05-21 23:48:37,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7509 states. [2021-05-21 23:48:37,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7509 to 3434. [2021-05-21 23:48:37,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3434 states, 3432 states have (on average 2.6276223776223775) internal successors, (9018), 3433 states have internal predecessors, (9018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:37,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 9018 transitions. [2021-05-21 23:48:37,207 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 9018 transitions. Word has length 113 [2021-05-21 23:48:37,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:37,207 INFO L482 AbstractCegarLoop]: Abstraction has 3434 states and 9018 transitions. [2021-05-21 23:48:37,207 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:37,207 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 9018 transitions. [2021-05-21 23:48:37,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:37,210 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:37,210 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:37,210 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-05-21 23:48:37,210 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:37,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:37,211 INFO L82 PathProgramCache]: Analyzing trace with hash -2016838673, now seen corresponding path program 24 times [2021-05-21 23:48:37,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:37,211 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304841112] [2021-05-21 23:48:37,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:37,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:37,513 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:37,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304841112] [2021-05-21 23:48:37,513 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304841112] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:37,513 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:37,513 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:37,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875223232] [2021-05-21 23:48:37,513 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:37,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:37,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:37,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:37,514 INFO L87 Difference]: Start difference. First operand 3434 states and 9018 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:38,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:38,745 INFO L93 Difference]: Finished difference Result 5115 states and 12793 transitions. [2021-05-21 23:48:38,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-21 23:48:38,745 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:38,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:38,750 INFO L225 Difference]: With dead ends: 5115 [2021-05-21 23:48:38,750 INFO L226 Difference]: Without dead ends: 5115 [2021-05-21 23:48:38,750 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1018.6ms TimeCoverageRelationStatistics Valid=333, Invalid=927, Unknown=0, NotChecked=0, Total=1260 [2021-05-21 23:48:38,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5115 states. [2021-05-21 23:48:38,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5115 to 3452. [2021-05-21 23:48:38,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3450 states have (on average 2.6269565217391304) internal successors, (9063), 3451 states have internal predecessors, (9063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:38,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 9063 transitions. [2021-05-21 23:48:38,792 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 9063 transitions. Word has length 113 [2021-05-21 23:48:38,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:38,792 INFO L482 AbstractCegarLoop]: Abstraction has 3452 states and 9063 transitions. [2021-05-21 23:48:38,792 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:38,792 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 9063 transitions. [2021-05-21 23:48:38,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:38,795 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:38,796 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:38,796 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-05-21 23:48:38,796 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:38,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:38,796 INFO L82 PathProgramCache]: Analyzing trace with hash 927277213, now seen corresponding path program 25 times [2021-05-21 23:48:38,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:38,796 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657010160] [2021-05-21 23:48:38,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:39,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:39,097 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:39,097 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657010160] [2021-05-21 23:48:39,098 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657010160] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:39,098 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:39,098 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:39,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505698766] [2021-05-21 23:48:39,098 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:39,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:39,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:39,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:39,098 INFO L87 Difference]: Start difference. First operand 3452 states and 9063 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:40,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:40,131 INFO L93 Difference]: Finished difference Result 5010 states and 12385 transitions. [2021-05-21 23:48:40,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-21 23:48:40,131 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:40,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:40,134 INFO L225 Difference]: With dead ends: 5010 [2021-05-21 23:48:40,134 INFO L226 Difference]: Without dead ends: 5010 [2021-05-21 23:48:40,135 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 868.6ms TimeCoverageRelationStatistics Valid=273, Invalid=849, Unknown=0, NotChecked=0, Total=1122 [2021-05-21 23:48:40,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5010 states. [2021-05-21 23:48:40,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5010 to 3460. [2021-05-21 23:48:40,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3460 states, 3458 states have (on average 2.626662810873337) internal successors, (9083), 3459 states have internal predecessors, (9083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:40,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3460 states to 3460 states and 9083 transitions. [2021-05-21 23:48:40,174 INFO L78 Accepts]: Start accepts. Automaton has 3460 states and 9083 transitions. Word has length 113 [2021-05-21 23:48:40,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:40,174 INFO L482 AbstractCegarLoop]: Abstraction has 3460 states and 9083 transitions. [2021-05-21 23:48:40,174 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:40,174 INFO L276 IsEmpty]: Start isEmpty. Operand 3460 states and 9083 transitions. [2021-05-21 23:48:40,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:40,177 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:40,177 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:40,177 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-05-21 23:48:40,177 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:40,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:40,177 INFO L82 PathProgramCache]: Analyzing trace with hash 693084889, now seen corresponding path program 26 times [2021-05-21 23:48:40,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:40,178 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567522468] [2021-05-21 23:48:40,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:40,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:40,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:40,499 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:40,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567522468] [2021-05-21 23:48:40,499 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567522468] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:40,499 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:40,499 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:40,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202289843] [2021-05-21 23:48:40,500 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:40,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:40,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:40,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:40,500 INFO L87 Difference]: Start difference. First operand 3460 states and 9083 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:41,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:41,597 INFO L93 Difference]: Finished difference Result 5475 states and 13368 transitions. [2021-05-21 23:48:41,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-21 23:48:41,598 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:41,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:41,602 INFO L225 Difference]: With dead ends: 5475 [2021-05-21 23:48:41,603 INFO L226 Difference]: Without dead ends: 5475 [2021-05-21 23:48:41,603 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 938.1ms TimeCoverageRelationStatistics Valid=298, Invalid=892, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 23:48:41,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5475 states. [2021-05-21 23:48:41,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5475 to 3458. [2021-05-21 23:48:41,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3458 states, 3456 states have (on average 2.626736111111111) internal successors, (9078), 3457 states have internal predecessors, (9078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:41,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3458 states to 3458 states and 9078 transitions. [2021-05-21 23:48:41,646 INFO L78 Accepts]: Start accepts. Automaton has 3458 states and 9078 transitions. Word has length 113 [2021-05-21 23:48:41,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:41,646 INFO L482 AbstractCegarLoop]: Abstraction has 3458 states and 9078 transitions. [2021-05-21 23:48:41,647 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:41,647 INFO L276 IsEmpty]: Start isEmpty. Operand 3458 states and 9078 transitions. [2021-05-21 23:48:41,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:41,649 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:41,649 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:41,649 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-05-21 23:48:41,650 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:41,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:41,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1294164801, now seen corresponding path program 27 times [2021-05-21 23:48:41,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:41,650 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272343818] [2021-05-21 23:48:41,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:41,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:41,949 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:41,949 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272343818] [2021-05-21 23:48:41,949 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272343818] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:41,949 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:41,949 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:41,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294268227] [2021-05-21 23:48:41,949 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:41,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:41,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:41,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:41,950 INFO L87 Difference]: Start difference. First operand 3458 states and 9078 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:43,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:43,247 INFO L93 Difference]: Finished difference Result 4851 states and 12025 transitions. [2021-05-21 23:48:43,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-21 23:48:43,247 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:43,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:43,250 INFO L225 Difference]: With dead ends: 4851 [2021-05-21 23:48:43,251 INFO L226 Difference]: Without dead ends: 4851 [2021-05-21 23:48:43,251 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 988.2ms TimeCoverageRelationStatistics Valid=322, Invalid=938, Unknown=0, NotChecked=0, Total=1260 [2021-05-21 23:48:43,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4851 states. [2021-05-21 23:48:43,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4851 to 3458. [2021-05-21 23:48:43,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3458 states, 3456 states have (on average 2.626736111111111) internal successors, (9078), 3457 states have internal predecessors, (9078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:43,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3458 states to 3458 states and 9078 transitions. [2021-05-21 23:48:43,292 INFO L78 Accepts]: Start accepts. Automaton has 3458 states and 9078 transitions. Word has length 113 [2021-05-21 23:48:43,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:43,292 INFO L482 AbstractCegarLoop]: Abstraction has 3458 states and 9078 transitions. [2021-05-21 23:48:43,292 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:43,292 INFO L276 IsEmpty]: Start isEmpty. Operand 3458 states and 9078 transitions. [2021-05-21 23:48:43,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:43,295 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:43,296 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:43,296 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-05-21 23:48:43,296 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:43,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:43,296 INFO L82 PathProgramCache]: Analyzing trace with hash -2039471343, now seen corresponding path program 28 times [2021-05-21 23:48:43,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:43,296 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135652001] [2021-05-21 23:48:43,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:43,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:43,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:43,621 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:43,621 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135652001] [2021-05-21 23:48:43,621 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135652001] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:43,621 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:43,621 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:43,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114817051] [2021-05-21 23:48:43,621 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:43,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:43,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:43,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:43,622 INFO L87 Difference]: Start difference. First operand 3458 states and 9078 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:44,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:44,371 INFO L93 Difference]: Finished difference Result 4343 states and 10955 transitions. [2021-05-21 23:48:44,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-21 23:48:44,372 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:44,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:44,375 INFO L225 Difference]: With dead ends: 4343 [2021-05-21 23:48:44,375 INFO L226 Difference]: Without dead ends: 4343 [2021-05-21 23:48:44,376 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 641.8ms TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2021-05-21 23:48:44,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4343 states. [2021-05-21 23:48:44,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4343 to 3428. [2021-05-21 23:48:44,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3428 states, 3426 states have (on average 2.62784588441331) internal successors, (9003), 3427 states have internal predecessors, (9003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:44,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3428 states to 3428 states and 9003 transitions. [2021-05-21 23:48:44,416 INFO L78 Accepts]: Start accepts. Automaton has 3428 states and 9003 transitions. Word has length 113 [2021-05-21 23:48:44,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:44,416 INFO L482 AbstractCegarLoop]: Abstraction has 3428 states and 9003 transitions. [2021-05-21 23:48:44,416 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:44,416 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 9003 transitions. [2021-05-21 23:48:44,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:44,419 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:44,419 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:44,419 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-05-21 23:48:44,419 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:44,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:44,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1465627475, now seen corresponding path program 29 times [2021-05-21 23:48:44,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:44,420 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404619883] [2021-05-21 23:48:44,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:44,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:44,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:44,742 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:44,743 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404619883] [2021-05-21 23:48:44,743 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404619883] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:44,743 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:44,743 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:44,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269453968] [2021-05-21 23:48:44,743 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:44,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:44,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:44,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:44,744 INFO L87 Difference]: Start difference. First operand 3428 states and 9003 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:45,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:45,599 INFO L93 Difference]: Finished difference Result 5140 states and 12658 transitions. [2021-05-21 23:48:45,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-21 23:48:45,600 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:45,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:45,604 INFO L225 Difference]: With dead ends: 5140 [2021-05-21 23:48:45,604 INFO L226 Difference]: Without dead ends: 5140 [2021-05-21 23:48:45,604 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 676.0ms TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2021-05-21 23:48:45,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5140 states. [2021-05-21 23:48:45,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5140 to 3430. [2021-05-21 23:48:45,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3430 states, 3428 states have (on average 2.627771295215869) internal successors, (9008), 3429 states have internal predecessors, (9008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:45,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 9008 transitions. [2021-05-21 23:48:45,646 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 9008 transitions. Word has length 113 [2021-05-21 23:48:45,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:45,646 INFO L482 AbstractCegarLoop]: Abstraction has 3430 states and 9008 transitions. [2021-05-21 23:48:45,646 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:45,646 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 9008 transitions. [2021-05-21 23:48:45,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:45,649 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:45,649 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:45,649 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-05-21 23:48:45,649 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:45,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:45,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1231435151, now seen corresponding path program 30 times [2021-05-21 23:48:45,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:45,650 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041550926] [2021-05-21 23:48:45,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:45,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:45,981 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:45,981 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041550926] [2021-05-21 23:48:45,981 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041550926] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:45,981 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:45,981 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:45,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32930276] [2021-05-21 23:48:45,982 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:45,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:45,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:45,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:45,983 INFO L87 Difference]: Start difference. First operand 3430 states and 9008 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:47,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:47,039 INFO L93 Difference]: Finished difference Result 4810 states and 11943 transitions. [2021-05-21 23:48:47,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-21 23:48:47,039 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:47,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:47,044 INFO L225 Difference]: With dead ends: 4810 [2021-05-21 23:48:47,044 INFO L226 Difference]: Without dead ends: 4810 [2021-05-21 23:48:47,044 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 772.6ms TimeCoverageRelationStatistics Valid=288, Invalid=902, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 23:48:47,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2021-05-21 23:48:47,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 3422. [2021-05-21 23:48:47,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3422 states, 3420 states have (on average 2.6280701754385967) internal successors, (8988), 3421 states have internal predecessors, (8988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:47,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3422 states to 3422 states and 8988 transitions. [2021-05-21 23:48:47,085 INFO L78 Accepts]: Start accepts. Automaton has 3422 states and 8988 transitions. Word has length 113 [2021-05-21 23:48:47,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:47,085 INFO L482 AbstractCegarLoop]: Abstraction has 3422 states and 8988 transitions. [2021-05-21 23:48:47,085 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:47,085 INFO L276 IsEmpty]: Start isEmpty. Operand 3422 states and 8988 transitions. [2021-05-21 23:48:47,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:47,088 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:47,088 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:47,088 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-05-21 23:48:47,088 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:47,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:47,089 INFO L82 PathProgramCache]: Analyzing trace with hash 534971981, now seen corresponding path program 31 times [2021-05-21 23:48:47,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:47,089 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641958655] [2021-05-21 23:48:47,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:47,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:47,402 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:47,402 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641958655] [2021-05-21 23:48:47,402 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641958655] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:47,402 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:47,402 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:47,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767327305] [2021-05-21 23:48:47,402 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:47,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:47,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:47,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:47,403 INFO L87 Difference]: Start difference. First operand 3422 states and 8988 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:48,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:48,331 INFO L93 Difference]: Finished difference Result 4432 states and 11108 transitions. [2021-05-21 23:48:48,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-21 23:48:48,331 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:48,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:48,335 INFO L225 Difference]: With dead ends: 4432 [2021-05-21 23:48:48,335 INFO L226 Difference]: Without dead ends: 4432 [2021-05-21 23:48:48,336 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 712.7ms TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2021-05-21 23:48:48,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4432 states. [2021-05-21 23:48:48,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4432 to 3412. [2021-05-21 23:48:48,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3412 states, 3410 states have (on average 2.6284457478005865) internal successors, (8963), 3411 states have internal predecessors, (8963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:48,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 8963 transitions. [2021-05-21 23:48:48,374 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 8963 transitions. Word has length 113 [2021-05-21 23:48:48,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:48,374 INFO L482 AbstractCegarLoop]: Abstraction has 3412 states and 8963 transitions. [2021-05-21 23:48:48,374 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:48,374 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 8963 transitions. [2021-05-21 23:48:48,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:48,377 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:48,377 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:48,377 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-05-21 23:48:48,377 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:48,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:48,378 INFO L82 PathProgramCache]: Analyzing trace with hash 300779657, now seen corresponding path program 32 times [2021-05-21 23:48:48,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:48,378 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189671984] [2021-05-21 23:48:48,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:48,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:48,689 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:48,689 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189671984] [2021-05-21 23:48:48,689 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189671984] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:48,689 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:48,689 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:48,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433694767] [2021-05-21 23:48:48,689 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:48,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:48,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:48,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:48,690 INFO L87 Difference]: Start difference. First operand 3412 states and 8963 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:49,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:49,718 INFO L93 Difference]: Finished difference Result 4897 states and 12091 transitions. [2021-05-21 23:48:49,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-21 23:48:49,719 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:49,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:49,722 INFO L225 Difference]: With dead ends: 4897 [2021-05-21 23:48:49,722 INFO L226 Difference]: Without dead ends: 4897 [2021-05-21 23:48:49,723 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 757.8ms TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 23:48:49,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4897 states. [2021-05-21 23:48:49,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4897 to 3410. [2021-05-21 23:48:49,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3410 states, 3408 states have (on average 2.6285211267605635) internal successors, (8958), 3409 states have internal predecessors, (8958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:49,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 8958 transitions. [2021-05-21 23:48:49,762 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 8958 transitions. Word has length 113 [2021-05-21 23:48:49,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:49,762 INFO L482 AbstractCegarLoop]: Abstraction has 3410 states and 8958 transitions. [2021-05-21 23:48:49,762 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:49,762 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 8958 transitions. [2021-05-21 23:48:49,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-05-21 23:48:49,765 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:49,765 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:49,765 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-05-21 23:48:49,765 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:49,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:49,766 INFO L82 PathProgramCache]: Analyzing trace with hash 901859569, now seen corresponding path program 33 times [2021-05-21 23:48:49,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:49,766 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523625465] [2021-05-21 23:48:49,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:50,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:50,073 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:50,073 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523625465] [2021-05-21 23:48:50,074 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523625465] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:50,074 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:50,074 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 23:48:50,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650497784] [2021-05-21 23:48:50,074 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 23:48:50,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:50,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 23:48:50,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-05-21 23:48:50,074 INFO L87 Difference]: Start difference. First operand 3410 states and 8958 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:51,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:51,112 INFO L93 Difference]: Finished difference Result 4093 states and 10381 transitions. [2021-05-21 23:48:51,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-21 23:48:51,113 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-05-21 23:48:51,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:51,117 INFO L225 Difference]: With dead ends: 4093 [2021-05-21 23:48:51,117 INFO L226 Difference]: Without dead ends: 4093 [2021-05-21 23:48:51,117 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 836.6ms TimeCoverageRelationStatistics Valid=311, Invalid=949, Unknown=0, NotChecked=0, Total=1260 [2021-05-21 23:48:51,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4093 states. [2021-05-21 23:48:51,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4093 to 3037. [2021-05-21 23:48:51,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3037 states, 3036 states have (on average 2.6831357048748354) internal successors, (8146), 3036 states have internal predecessors, (8146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:51,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3037 states to 3037 states and 8146 transitions. [2021-05-21 23:48:51,152 INFO L78 Accepts]: Start accepts. Automaton has 3037 states and 8146 transitions. Word has length 113 [2021-05-21 23:48:51,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:51,153 INFO L482 AbstractCegarLoop]: Abstraction has 3037 states and 8146 transitions. [2021-05-21 23:48:51,153 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:51,153 INFO L276 IsEmpty]: Start isEmpty. Operand 3037 states and 8146 transitions. [2021-05-21 23:48:51,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:48:51,155 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:51,155 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:51,155 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-05-21 23:48:51,155 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:51,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:51,155 INFO L82 PathProgramCache]: Analyzing trace with hash 634075415, now seen corresponding path program 1 times [2021-05-21 23:48:51,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:51,156 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333897804] [2021-05-21 23:48:51,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:51,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:51,436 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:51,436 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333897804] [2021-05-21 23:48:51,436 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333897804] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:51,436 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:51,436 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-05-21 23:48:51,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830441797] [2021-05-21 23:48:51,436 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 23:48:51,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:51,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 23:48:51,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:48:51,437 INFO L87 Difference]: Start difference. First operand 3037 states and 8146 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:51,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:51,726 INFO L93 Difference]: Finished difference Result 3487 states and 9268 transitions. [2021-05-21 23:48:51,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 23:48:51,726 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:48:51,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:51,730 INFO L225 Difference]: With dead ends: 3487 [2021-05-21 23:48:51,730 INFO L226 Difference]: Without dead ends: 3487 [2021-05-21 23:48:51,730 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 281.6ms TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2021-05-21 23:48:51,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3487 states. [2021-05-21 23:48:51,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3487 to 3205. [2021-05-21 23:48:51,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 3204 states have (on average 2.6697877652933832) internal successors, (8554), 3204 states have internal predecessors, (8554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:51,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 8554 transitions. [2021-05-21 23:48:51,768 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 8554 transitions. Word has length 119 [2021-05-21 23:48:51,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:51,768 INFO L482 AbstractCegarLoop]: Abstraction has 3205 states and 8554 transitions. [2021-05-21 23:48:51,768 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:51,768 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 8554 transitions. [2021-05-21 23:48:51,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:48:51,771 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:51,771 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:51,771 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-05-21 23:48:51,771 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:51,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:51,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1551030297, now seen corresponding path program 2 times [2021-05-21 23:48:51,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:51,772 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109905569] [2021-05-21 23:48:51,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:51,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:52,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:52,433 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:52,433 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109905569] [2021-05-21 23:48:52,433 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109905569] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:52,433 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:52,433 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:48:52,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837017932] [2021-05-21 23:48:52,433 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:48:52,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:52,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:48:52,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:48:52,434 INFO L87 Difference]: Start difference. First operand 3205 states and 8554 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:53,620 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-05-21 23:48:55,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:55,423 INFO L93 Difference]: Finished difference Result 4951 states and 13018 transitions. [2021-05-21 23:48:55,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:48:55,423 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:48:55,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:55,427 INFO L225 Difference]: With dead ends: 4951 [2021-05-21 23:48:55,427 INFO L226 Difference]: Without dead ends: 4756 [2021-05-21 23:48:55,427 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 2460.9ms TimeCoverageRelationStatistics Valid=570, Invalid=2970, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:48:55,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4756 states. [2021-05-21 23:48:55,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4756 to 3769. [2021-05-21 23:48:55,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3769 states, 3768 states have (on average 2.6910828025477707) internal successors, (10140), 3768 states have internal predecessors, (10140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:55,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3769 states to 3769 states and 10140 transitions. [2021-05-21 23:48:55,469 INFO L78 Accepts]: Start accepts. Automaton has 3769 states and 10140 transitions. Word has length 119 [2021-05-21 23:48:55,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:55,470 INFO L482 AbstractCegarLoop]: Abstraction has 3769 states and 10140 transitions. [2021-05-21 23:48:55,470 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:55,470 INFO L276 IsEmpty]: Start isEmpty. Operand 3769 states and 10140 transitions. [2021-05-21 23:48:55,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:48:55,473 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:55,473 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:55,473 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-05-21 23:48:55,473 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:55,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:55,473 INFO L82 PathProgramCache]: Analyzing trace with hash -288666885, now seen corresponding path program 1 times [2021-05-21 23:48:55,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:55,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476061319] [2021-05-21 23:48:55,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:55,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:55,905 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:55,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476061319] [2021-05-21 23:48:55,906 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476061319] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:55,906 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:55,906 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-05-21 23:48:55,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377168874] [2021-05-21 23:48:55,906 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-21 23:48:55,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:55,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-21 23:48:55,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2021-05-21 23:48:55,907 INFO L87 Difference]: Start difference. First operand 3769 states and 10140 transitions. Second operand has 20 states, 20 states have (on average 5.95) internal successors, (119), 20 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:57,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:48:57,281 INFO L93 Difference]: Finished difference Result 6293 states and 16970 transitions. [2021-05-21 23:48:57,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:48:57,281 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.95) internal successors, (119), 20 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:48:57,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:48:57,288 INFO L225 Difference]: With dead ends: 6293 [2021-05-21 23:48:57,288 INFO L226 Difference]: Without dead ends: 6293 [2021-05-21 23:48:57,288 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 959.8ms TimeCoverageRelationStatistics Valid=457, Invalid=1523, Unknown=0, NotChecked=0, Total=1980 [2021-05-21 23:48:57,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6293 states. [2021-05-21 23:48:57,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6293 to 6251. [2021-05-21 23:48:57,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6251 states, 6250 states have (on average 2.70224) internal successors, (16889), 6250 states have internal predecessors, (16889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:57,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6251 states to 6251 states and 16889 transitions. [2021-05-21 23:48:57,362 INFO L78 Accepts]: Start accepts. Automaton has 6251 states and 16889 transitions. Word has length 119 [2021-05-21 23:48:57,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:48:57,362 INFO L482 AbstractCegarLoop]: Abstraction has 6251 states and 16889 transitions. [2021-05-21 23:48:57,362 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.95) internal successors, (119), 20 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:57,362 INFO L276 IsEmpty]: Start isEmpty. Operand 6251 states and 16889 transitions. [2021-05-21 23:48:57,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:48:57,368 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:48:57,368 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:48:57,368 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-05-21 23:48:57,368 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:48:57,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:48:57,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1953169949, now seen corresponding path program 3 times [2021-05-21 23:48:57,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:48:57,369 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125800974] [2021-05-21 23:48:57,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:48:57,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:48:58,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:48:58,014 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:48:58,015 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125800974] [2021-05-21 23:48:58,015 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125800974] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:48:58,015 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:48:58,015 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:48:58,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491675949] [2021-05-21 23:48:58,015 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:48:58,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:48:58,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:48:58,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:48:58,016 INFO L87 Difference]: Start difference. First operand 6251 states and 16889 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:48:59,215 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-05-21 23:49:00,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:49:00,972 INFO L93 Difference]: Finished difference Result 8779 states and 23303 transitions. [2021-05-21 23:49:00,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:49:00,972 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:49:00,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:49:00,979 INFO L225 Difference]: With dead ends: 8779 [2021-05-21 23:49:00,980 INFO L226 Difference]: Without dead ends: 8013 [2021-05-21 23:49:00,980 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 2502.0ms TimeCoverageRelationStatistics Valid=613, Invalid=2927, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:49:00,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8013 states. [2021-05-21 23:49:01,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8013 to 6371. [2021-05-21 23:49:01,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6371 states, 6370 states have (on average 2.685243328100471) internal successors, (17105), 6370 states have internal predecessors, (17105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:01,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6371 states to 6371 states and 17105 transitions. [2021-05-21 23:49:01,065 INFO L78 Accepts]: Start accepts. Automaton has 6371 states and 17105 transitions. Word has length 119 [2021-05-21 23:49:01,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:49:01,065 INFO L482 AbstractCegarLoop]: Abstraction has 6371 states and 17105 transitions. [2021-05-21 23:49:01,065 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:01,065 INFO L276 IsEmpty]: Start isEmpty. Operand 6371 states and 17105 transitions. [2021-05-21 23:49:01,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:49:01,071 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:49:01,071 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:49:01,071 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-05-21 23:49:01,071 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:49:01,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:49:01,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1133371983, now seen corresponding path program 4 times [2021-05-21 23:49:01,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:49:01,072 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289437335] [2021-05-21 23:49:01,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:49:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:49:01,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:49:01,731 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:49:01,731 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289437335] [2021-05-21 23:49:01,731 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289437335] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:49:01,731 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:49:01,731 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:49:01,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636376995] [2021-05-21 23:49:01,731 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:49:01,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:49:01,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:49:01,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:49:01,732 INFO L87 Difference]: Start difference. First operand 6371 states and 17105 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:02,950 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-05-21 23:49:04,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:49:04,842 INFO L93 Difference]: Finished difference Result 8204 states and 21680 transitions. [2021-05-21 23:49:04,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-21 23:49:04,842 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:49:04,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:49:04,850 INFO L225 Difference]: With dead ends: 8204 [2021-05-21 23:49:04,850 INFO L226 Difference]: Without dead ends: 7365 [2021-05-21 23:49:04,851 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 2667.4ms TimeCoverageRelationStatistics Valid=634, Invalid=3148, Unknown=0, NotChecked=0, Total=3782 [2021-05-21 23:49:04,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7365 states. [2021-05-21 23:49:04,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7365 to 5723. [2021-05-21 23:49:04,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5723 states, 5722 states have (on average 2.686648025166026) internal successors, (15373), 5722 states have internal predecessors, (15373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:04,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5723 states to 5723 states and 15373 transitions. [2021-05-21 23:49:04,957 INFO L78 Accepts]: Start accepts. Automaton has 5723 states and 15373 transitions. Word has length 119 [2021-05-21 23:49:04,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:49:04,957 INFO L482 AbstractCegarLoop]: Abstraction has 5723 states and 15373 transitions. [2021-05-21 23:49:04,957 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:04,957 INFO L276 IsEmpty]: Start isEmpty. Operand 5723 states and 15373 transitions. [2021-05-21 23:49:04,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:49:04,962 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:49:04,962 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:49:04,962 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-05-21 23:49:04,962 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:49:04,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:49:04,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1558365401, now seen corresponding path program 5 times [2021-05-21 23:49:04,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:49:04,963 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914604797] [2021-05-21 23:49:04,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:49:04,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:49:05,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:49:05,598 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:49:05,598 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914604797] [2021-05-21 23:49:05,598 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914604797] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:49:05,598 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:49:05,598 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:49:05,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460611377] [2021-05-21 23:49:05,599 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:49:05,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:49:05,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:49:05,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:49:05,601 INFO L87 Difference]: Start difference. First operand 5723 states and 15373 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:06,810 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-05-21 23:49:07,219 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-05-21 23:49:08,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:49:08,620 INFO L93 Difference]: Finished difference Result 6859 states and 18101 transitions. [2021-05-21 23:49:08,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:49:08,620 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:49:08,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:49:08,625 INFO L225 Difference]: With dead ends: 6859 [2021-05-21 23:49:08,625 INFO L226 Difference]: Without dead ends: 6532 [2021-05-21 23:49:08,626 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 2572.8ms TimeCoverageRelationStatistics Valid=623, Invalid=2917, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:49:08,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6532 states. [2021-05-21 23:49:08,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6532 to 5715. [2021-05-21 23:49:08,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5715 states, 5714 states have (on average 2.6862093104655234) internal successors, (15349), 5714 states have internal predecessors, (15349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:08,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5715 states to 5715 states and 15349 transitions. [2021-05-21 23:49:08,692 INFO L78 Accepts]: Start accepts. Automaton has 5715 states and 15349 transitions. Word has length 119 [2021-05-21 23:49:08,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:49:08,692 INFO L482 AbstractCegarLoop]: Abstraction has 5715 states and 15349 transitions. [2021-05-21 23:49:08,693 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:08,693 INFO L276 IsEmpty]: Start isEmpty. Operand 5715 states and 15349 transitions. [2021-05-21 23:49:08,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:49:08,697 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:49:08,698 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:49:08,698 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-05-21 23:49:08,698 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:49:08,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:49:08,698 INFO L82 PathProgramCache]: Analyzing trace with hash -2032286581, now seen corresponding path program 6 times [2021-05-21 23:49:08,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:49:08,698 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083087560] [2021-05-21 23:49:08,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:49:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:49:09,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:49:09,358 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:49:09,358 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083087560] [2021-05-21 23:49:09,358 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083087560] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:49:09,358 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:49:09,358 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:49:09,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885037136] [2021-05-21 23:49:09,358 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:49:09,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:49:09,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:49:09,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:49:09,359 INFO L87 Difference]: Start difference. First operand 5715 states and 15349 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:10,736 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-05-21 23:49:10,904 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-05-21 23:49:12,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:49:12,329 INFO L93 Difference]: Finished difference Result 6577 states and 17301 transitions. [2021-05-21 23:49:12,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-21 23:49:12,329 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:49:12,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:49:12,334 INFO L225 Difference]: With dead ends: 6577 [2021-05-21 23:49:12,334 INFO L226 Difference]: Without dead ends: 6190 [2021-05-21 23:49:12,335 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 2460.1ms TimeCoverageRelationStatistics Valid=596, Invalid=2826, Unknown=0, NotChecked=0, Total=3422 [2021-05-21 23:49:12,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6190 states. [2021-05-21 23:49:12,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6190 to 5707. [2021-05-21 23:49:12,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5707 states, 5706 states have (on average 2.6843673326323167) internal successors, (15317), 5706 states have internal predecessors, (15317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:12,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5707 states to 5707 states and 15317 transitions. [2021-05-21 23:49:12,398 INFO L78 Accepts]: Start accepts. Automaton has 5707 states and 15317 transitions. Word has length 119 [2021-05-21 23:49:12,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:49:12,398 INFO L482 AbstractCegarLoop]: Abstraction has 5707 states and 15317 transitions. [2021-05-21 23:49:12,398 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:12,399 INFO L276 IsEmpty]: Start isEmpty. Operand 5707 states and 15317 transitions. [2021-05-21 23:49:12,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:49:12,403 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:49:12,403 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:49:12,403 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-05-21 23:49:12,403 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:49:12,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:49:12,403 INFO L82 PathProgramCache]: Analyzing trace with hash -865351205, now seen corresponding path program 7 times [2021-05-21 23:49:12,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:49:12,404 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36987108] [2021-05-21 23:49:12,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:49:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:49:13,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:49:13,012 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:49:13,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36987108] [2021-05-21 23:49:13,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36987108] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:49:13,012 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:49:13,013 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:49:13,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288606576] [2021-05-21 23:49:13,013 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:49:13,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:49:13,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:49:13,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:49:13,013 INFO L87 Difference]: Start difference. First operand 5707 states and 15317 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:14,155 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-05-21 23:49:16,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:49:16,100 INFO L93 Difference]: Finished difference Result 8739 states and 23005 transitions. [2021-05-21 23:49:16,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-21 23:49:16,100 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:49:16,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:49:16,108 INFO L225 Difference]: With dead ends: 8739 [2021-05-21 23:49:16,108 INFO L226 Difference]: Without dead ends: 8440 [2021-05-21 23:49:16,109 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 2566.4ms TimeCoverageRelationStatistics Valid=597, Invalid=3063, Unknown=0, NotChecked=0, Total=3660 [2021-05-21 23:49:16,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8440 states. [2021-05-21 23:49:16,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8440 to 6343. [2021-05-21 23:49:16,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6343 states, 6342 states have (on average 2.6825922421948913) internal successors, (17013), 6342 states have internal predecessors, (17013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:16,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6343 states to 6343 states and 17013 transitions. [2021-05-21 23:49:16,196 INFO L78 Accepts]: Start accepts. Automaton has 6343 states and 17013 transitions. Word has length 119 [2021-05-21 23:49:16,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:49:16,197 INFO L482 AbstractCegarLoop]: Abstraction has 6343 states and 17013 transitions. [2021-05-21 23:49:16,197 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:16,197 INFO L276 IsEmpty]: Start isEmpty. Operand 6343 states and 17013 transitions. [2021-05-21 23:49:16,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:49:16,202 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:49:16,202 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:49:16,202 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-05-21 23:49:16,202 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:49:16,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:49:16,203 INFO L82 PathProgramCache]: Analyzing trace with hash -463211553, now seen corresponding path program 8 times [2021-05-21 23:49:16,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:49:16,203 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746069135] [2021-05-21 23:49:16,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:49:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:49:16,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:49:16,816 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:49:16,816 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746069135] [2021-05-21 23:49:16,816 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746069135] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:49:16,816 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:49:16,816 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:49:16,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370456386] [2021-05-21 23:49:16,817 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:49:16,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:49:16,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:49:16,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:49:16,817 INFO L87 Difference]: Start difference. First operand 6343 states and 17013 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:17,974 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-05-21 23:49:19,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:49:19,927 INFO L93 Difference]: Finished difference Result 9293 states and 24519 transitions. [2021-05-21 23:49:19,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-21 23:49:19,927 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:49:19,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:49:19,935 INFO L225 Difference]: With dead ends: 9293 [2021-05-21 23:49:19,936 INFO L226 Difference]: Without dead ends: 8527 [2021-05-21 23:49:19,936 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 2626.2ms TimeCoverageRelationStatistics Valid=642, Invalid=3018, Unknown=0, NotChecked=0, Total=3660 [2021-05-21 23:49:19,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8527 states. [2021-05-21 23:49:20,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8527 to 6463. [2021-05-21 23:49:20,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6463 states, 6462 states have (on average 2.6662024141132776) internal successors, (17229), 6462 states have internal predecessors, (17229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:20,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6463 states to 6463 states and 17229 transitions. [2021-05-21 23:49:20,024 INFO L78 Accepts]: Start accepts. Automaton has 6463 states and 17229 transitions. Word has length 119 [2021-05-21 23:49:20,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:49:20,024 INFO L482 AbstractCegarLoop]: Abstraction has 6463 states and 17229 transitions. [2021-05-21 23:49:20,024 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:20,024 INFO L276 IsEmpty]: Start isEmpty. Operand 6463 states and 17229 transitions. [2021-05-21 23:49:20,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:49:20,029 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:49:20,029 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:49:20,030 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-05-21 23:49:20,030 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:49:20,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:49:20,030 INFO L82 PathProgramCache]: Analyzing trace with hash 745213811, now seen corresponding path program 9 times [2021-05-21 23:49:20,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:49:20,030 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71100959] [2021-05-21 23:49:20,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:49:20,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:49:20,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:49:20,674 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:49:20,674 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71100959] [2021-05-21 23:49:20,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71100959] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:49:20,674 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:49:20,674 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:49:20,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883158803] [2021-05-21 23:49:20,674 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:49:20,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:49:20,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:49:20,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:49:20,675 INFO L87 Difference]: Start difference. First operand 6463 states and 17229 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:21,802 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-05-21 23:49:23,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:49:23,873 INFO L93 Difference]: Finished difference Result 8718 states and 22896 transitions. [2021-05-21 23:49:23,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-05-21 23:49:23,873 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:49:23,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:49:23,882 INFO L225 Difference]: With dead ends: 8718 [2021-05-21 23:49:23,882 INFO L226 Difference]: Without dead ends: 7879 [2021-05-21 23:49:23,882 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 2776.1ms TimeCoverageRelationStatistics Valid=665, Invalid=3241, Unknown=0, NotChecked=0, Total=3906 [2021-05-21 23:49:23,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7879 states. [2021-05-21 23:49:23,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7879 to 5815. [2021-05-21 23:49:23,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5815 states, 5814 states have (on average 2.66546267629859) internal successors, (15497), 5814 states have internal predecessors, (15497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:23,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5815 states to 5815 states and 15497 transitions. [2021-05-21 23:49:23,977 INFO L78 Accepts]: Start accepts. Automaton has 5815 states and 15497 transitions. Word has length 119 [2021-05-21 23:49:23,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:49:23,977 INFO L482 AbstractCegarLoop]: Abstraction has 5815 states and 15497 transitions. [2021-05-21 23:49:23,977 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:23,978 INFO L276 IsEmpty]: Start isEmpty. Operand 5815 states and 15497 transitions. [2021-05-21 23:49:23,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:49:23,982 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:49:23,982 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:49:23,982 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-05-21 23:49:23,983 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:49:23,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:49:23,983 INFO L82 PathProgramCache]: Analyzing trace with hash -858016101, now seen corresponding path program 10 times [2021-05-21 23:49:23,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:49:23,983 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522293843] [2021-05-21 23:49:23,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:49:24,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:49:24,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:49:24,600 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:49:24,600 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522293843] [2021-05-21 23:49:24,600 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522293843] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:49:24,600 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:49:24,600 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:49:24,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965138034] [2021-05-21 23:49:24,600 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:49:24,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:49:24,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:49:24,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:49:24,601 INFO L87 Difference]: Start difference. First operand 5815 states and 15497 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:25,782 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-05-21 23:49:26,294 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-05-21 23:49:27,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:49:27,796 INFO L93 Difference]: Finished difference Result 7345 states and 19235 transitions. [2021-05-21 23:49:27,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-21 23:49:27,796 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:49:27,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:49:27,802 INFO L225 Difference]: With dead ends: 7345 [2021-05-21 23:49:27,802 INFO L226 Difference]: Without dead ends: 7018 [2021-05-21 23:49:27,802 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 2660.2ms TimeCoverageRelationStatistics Valid=653, Invalid=3007, Unknown=0, NotChecked=0, Total=3660 [2021-05-21 23:49:27,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7018 states. [2021-05-21 23:49:27,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7018 to 5695. [2021-05-21 23:49:27,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5695 states, 5694 states have (on average 2.6794871794871793) internal successors, (15257), 5694 states have internal predecessors, (15257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:27,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5695 states to 5695 states and 15257 transitions. [2021-05-21 23:49:27,875 INFO L78 Accepts]: Start accepts. Automaton has 5695 states and 15257 transitions. Word has length 119 [2021-05-21 23:49:27,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:49:27,875 INFO L482 AbstractCegarLoop]: Abstraction has 5695 states and 15257 transitions. [2021-05-21 23:49:27,875 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:27,875 INFO L276 IsEmpty]: Start isEmpty. Operand 5695 states and 15257 transitions. [2021-05-21 23:49:27,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:49:27,880 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:49:27,880 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:49:27,880 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-05-21 23:49:27,880 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:49:27,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:49:27,880 INFO L82 PathProgramCache]: Analyzing trace with hash -760437769, now seen corresponding path program 11 times [2021-05-21 23:49:27,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:49:27,881 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74209209] [2021-05-21 23:49:27,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:49:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:49:28,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:49:28,491 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:49:28,491 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74209209] [2021-05-21 23:49:28,491 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74209209] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:49:28,491 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:49:28,491 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:49:28,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097663471] [2021-05-21 23:49:28,491 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:49:28,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:49:28,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:49:28,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:49:28,492 INFO L87 Difference]: Start difference. First operand 5695 states and 15257 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:31,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:49:31,466 INFO L93 Difference]: Finished difference Result 8203 states and 21601 transitions. [2021-05-21 23:49:31,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-21 23:49:31,466 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:49:31,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:49:31,473 INFO L225 Difference]: With dead ends: 8203 [2021-05-21 23:49:31,473 INFO L226 Difference]: Without dead ends: 7904 [2021-05-21 23:49:31,473 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 2374.2ms TimeCoverageRelationStatistics Valid=543, Invalid=2763, Unknown=0, NotChecked=0, Total=3306 [2021-05-21 23:49:31,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7904 states. [2021-05-21 23:49:31,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7904 to 6271. [2021-05-21 23:49:31,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6271 states, 6270 states have (on average 2.6751196172248806) internal successors, (16773), 6270 states have internal predecessors, (16773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:31,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6271 states to 6271 states and 16773 transitions. [2021-05-21 23:49:31,554 INFO L78 Accepts]: Start accepts. Automaton has 6271 states and 16773 transitions. Word has length 119 [2021-05-21 23:49:31,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:49:31,554 INFO L482 AbstractCegarLoop]: Abstraction has 6271 states and 16773 transitions. [2021-05-21 23:49:31,554 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:31,554 INFO L276 IsEmpty]: Start isEmpty. Operand 6271 states and 16773 transitions. [2021-05-21 23:49:31,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:49:31,560 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:49:31,560 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:49:31,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-05-21 23:49:31,560 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:49:31,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:49:31,560 INFO L82 PathProgramCache]: Analyzing trace with hash -358298117, now seen corresponding path program 12 times [2021-05-21 23:49:31,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:49:31,560 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963656932] [2021-05-21 23:49:31,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:49:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:49:32,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:49:32,190 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:49:32,190 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963656932] [2021-05-21 23:49:32,190 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963656932] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:49:32,190 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:49:32,190 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:49:32,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096950692] [2021-05-21 23:49:32,190 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:49:32,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:49:32,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:49:32,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:49:32,191 INFO L87 Difference]: Start difference. First operand 6271 states and 16773 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:35,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:49:35,255 INFO L93 Difference]: Finished difference Result 8784 states and 23053 transitions. [2021-05-21 23:49:35,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-21 23:49:35,255 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:49:35,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:49:35,262 INFO L225 Difference]: With dead ends: 8784 [2021-05-21 23:49:35,263 INFO L226 Difference]: Without dead ends: 8018 [2021-05-21 23:49:35,263 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 2567.7ms TimeCoverageRelationStatistics Valid=622, Invalid=3038, Unknown=0, NotChecked=0, Total=3660 [2021-05-21 23:49:35,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8018 states. [2021-05-21 23:49:35,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8018 to 6391. [2021-05-21 23:49:35,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6391 states, 6390 states have (on average 2.6586854460093896) internal successors, (16989), 6390 states have internal predecessors, (16989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:35,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6391 states to 6391 states and 16989 transitions. [2021-05-21 23:49:35,348 INFO L78 Accepts]: Start accepts. Automaton has 6391 states and 16989 transitions. Word has length 119 [2021-05-21 23:49:35,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:49:35,348 INFO L482 AbstractCegarLoop]: Abstraction has 6391 states and 16989 transitions. [2021-05-21 23:49:35,348 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:35,348 INFO L276 IsEmpty]: Start isEmpty. Operand 6391 states and 16989 transitions. [2021-05-21 23:49:35,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:49:35,354 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:49:35,354 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:49:35,354 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-05-21 23:49:35,354 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:49:35,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:49:35,354 INFO L82 PathProgramCache]: Analyzing trace with hash 850127247, now seen corresponding path program 13 times [2021-05-21 23:49:35,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:49:35,355 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703286328] [2021-05-21 23:49:35,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:49:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:49:36,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:49:36,029 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:49:36,029 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703286328] [2021-05-21 23:49:36,029 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703286328] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:49:36,029 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:49:36,029 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:49:36,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912224082] [2021-05-21 23:49:36,030 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:49:36,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:49:36,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:49:36,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:49:36,030 INFO L87 Difference]: Start difference. First operand 6391 states and 16989 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:39,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:49:39,482 INFO L93 Difference]: Finished difference Result 8209 states and 21430 transitions. [2021-05-21 23:49:39,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-05-21 23:49:39,482 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:49:39,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:49:39,489 INFO L225 Difference]: With dead ends: 8209 [2021-05-21 23:49:39,489 INFO L226 Difference]: Without dead ends: 7370 [2021-05-21 23:49:39,493 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 718 ImplicationChecksByTransitivity, 2935.6ms TimeCoverageRelationStatistics Valid=648, Invalid=3258, Unknown=0, NotChecked=0, Total=3906 [2021-05-21 23:49:39,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7370 states. [2021-05-21 23:49:39,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7370 to 5743. [2021-05-21 23:49:39,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5743 states, 5742 states have (on average 2.648728665970045) internal successors, (15209), 5742 states have internal predecessors, (15209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:39,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5743 states to 5743 states and 15209 transitions. [2021-05-21 23:49:39,567 INFO L78 Accepts]: Start accepts. Automaton has 5743 states and 15209 transitions. Word has length 119 [2021-05-21 23:49:39,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:49:39,567 INFO L482 AbstractCegarLoop]: Abstraction has 5743 states and 15209 transitions. [2021-05-21 23:49:39,567 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:39,567 INFO L276 IsEmpty]: Start isEmpty. Operand 5743 states and 15209 transitions. [2021-05-21 23:49:39,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:49:39,572 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:49:39,572 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:49:39,572 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-05-21 23:49:39,572 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:49:39,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:49:39,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1226196881, now seen corresponding path program 14 times [2021-05-21 23:49:39,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:49:39,572 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49080098] [2021-05-21 23:49:39,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:49:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:49:40,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:49:40,201 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:49:40,201 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49080098] [2021-05-21 23:49:40,201 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49080098] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:49:40,201 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:49:40,201 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:49:40,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413247401] [2021-05-21 23:49:40,202 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:49:40,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:49:40,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:49:40,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:49:40,202 INFO L87 Difference]: Start difference. First operand 5743 states and 15209 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:43,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:49:43,208 INFO L93 Difference]: Finished difference Result 7643 states and 19796 transitions. [2021-05-21 23:49:43,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-21 23:49:43,209 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:49:43,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:49:43,214 INFO L225 Difference]: With dead ends: 7643 [2021-05-21 23:49:43,214 INFO L226 Difference]: Without dead ends: 7143 [2021-05-21 23:49:43,214 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 2558.8ms TimeCoverageRelationStatistics Valid=589, Invalid=3071, Unknown=0, NotChecked=0, Total=3660 [2021-05-21 23:49:43,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7143 states. [2021-05-21 23:49:43,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7143 to 5575. [2021-05-21 23:49:43,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5575 states, 5574 states have (on average 2.6639756010046645) internal successors, (14849), 5574 states have internal predecessors, (14849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:43,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5575 states to 5575 states and 14849 transitions. [2021-05-21 23:49:43,282 INFO L78 Accepts]: Start accepts. Automaton has 5575 states and 14849 transitions. Word has length 119 [2021-05-21 23:49:43,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:49:43,282 INFO L482 AbstractCegarLoop]: Abstraction has 5575 states and 14849 transitions. [2021-05-21 23:49:43,282 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:43,282 INFO L276 IsEmpty]: Start isEmpty. Operand 5575 states and 14849 transitions. [2021-05-21 23:49:43,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:49:43,287 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:49:43,287 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:49:43,287 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-05-21 23:49:43,287 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:49:43,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:49:43,287 INFO L82 PathProgramCache]: Analyzing trace with hash -2107003891, now seen corresponding path program 15 times [2021-05-21 23:49:43,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:49:43,287 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048902504] [2021-05-21 23:49:43,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:49:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:49:43,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:49:43,925 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:49:43,925 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048902504] [2021-05-21 23:49:43,925 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048902504] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:49:43,925 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:49:43,925 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:49:43,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347485578] [2021-05-21 23:49:43,926 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:49:43,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:49:43,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:49:43,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:49:43,926 INFO L87 Difference]: Start difference. First operand 5575 states and 14849 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:45,465 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-05-21 23:49:47,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:49:47,123 INFO L93 Difference]: Finished difference Result 6701 states and 17443 transitions. [2021-05-21 23:49:47,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-21 23:49:47,124 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:49:47,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:49:47,129 INFO L225 Difference]: With dead ends: 6701 [2021-05-21 23:49:47,129 INFO L226 Difference]: Without dead ends: 6398 [2021-05-21 23:49:47,129 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 2656.8ms TimeCoverageRelationStatistics Valid=653, Invalid=3007, Unknown=0, NotChecked=0, Total=3660 [2021-05-21 23:49:47,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6398 states. [2021-05-21 23:49:47,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6398 to 5583. [2021-05-21 23:49:47,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5583 states, 5582 states have (on average 2.663024005732712) internal successors, (14865), 5582 states have internal predecessors, (14865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:47,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5583 states to 5583 states and 14865 transitions. [2021-05-21 23:49:47,191 INFO L78 Accepts]: Start accepts. Automaton has 5583 states and 14865 transitions. Word has length 119 [2021-05-21 23:49:47,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:49:47,191 INFO L482 AbstractCegarLoop]: Abstraction has 5583 states and 14865 transitions. [2021-05-21 23:49:47,191 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:47,192 INFO L276 IsEmpty]: Start isEmpty. Operand 5583 states and 14865 transitions. [2021-05-21 23:49:47,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:49:47,196 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:49:47,196 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:49:47,196 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-05-21 23:49:47,196 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:49:47,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:49:47,196 INFO L82 PathProgramCache]: Analyzing trace with hash 44071913, now seen corresponding path program 16 times [2021-05-21 23:49:47,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:49:47,197 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750744194] [2021-05-21 23:49:47,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:49:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:49:47,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:49:47,812 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:49:47,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750744194] [2021-05-21 23:49:47,812 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750744194] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:49:47,812 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:49:47,812 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:49:47,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288568602] [2021-05-21 23:49:47,812 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:49:47,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:49:47,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:49:47,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:49:47,813 INFO L87 Difference]: Start difference. First operand 5583 states and 14865 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:50,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:49:50,817 INFO L93 Difference]: Finished difference Result 6628 states and 17272 transitions. [2021-05-21 23:49:50,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-21 23:49:50,817 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:49:50,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:49:50,822 INFO L225 Difference]: With dead ends: 6628 [2021-05-21 23:49:50,823 INFO L226 Difference]: Without dead ends: 6268 [2021-05-21 23:49:50,823 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 2577.3ms TimeCoverageRelationStatistics Valid=635, Invalid=3025, Unknown=0, NotChecked=0, Total=3660 [2021-05-21 23:49:50,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6268 states. [2021-05-21 23:49:50,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6268 to 5555. [2021-05-21 23:49:50,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5555 states, 5554 states have (on average 2.6660064818149083) internal successors, (14807), 5554 states have internal predecessors, (14807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:50,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5555 states to 5555 states and 14807 transitions. [2021-05-21 23:49:50,885 INFO L78 Accepts]: Start accepts. Automaton has 5555 states and 14807 transitions. Word has length 119 [2021-05-21 23:49:50,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:49:50,885 INFO L482 AbstractCegarLoop]: Abstraction has 5555 states and 14807 transitions. [2021-05-21 23:49:50,886 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:50,886 INFO L276 IsEmpty]: Start isEmpty. Operand 5555 states and 14807 transitions. [2021-05-21 23:49:50,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:49:50,890 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:49:50,890 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:49:50,890 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-05-21 23:49:50,890 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:49:50,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:49:50,890 INFO L82 PathProgramCache]: Analyzing trace with hash -2096202407, now seen corresponding path program 17 times [2021-05-21 23:49:50,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:49:50,890 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21556743] [2021-05-21 23:49:50,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:49:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:49:51,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:49:51,504 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:49:51,504 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21556743] [2021-05-21 23:49:51,504 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21556743] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:49:51,504 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:49:51,504 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:49:51,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625116816] [2021-05-21 23:49:51,505 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:49:51,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:49:51,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:49:51,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:49:51,505 INFO L87 Difference]: Start difference. First operand 5555 states and 14807 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:52,845 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-05-21 23:49:53,036 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-05-21 23:49:54,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:49:54,457 INFO L93 Difference]: Finished difference Result 6333 states and 16469 transitions. [2021-05-21 23:49:54,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-21 23:49:54,457 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:49:54,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:49:54,463 INFO L225 Difference]: With dead ends: 6333 [2021-05-21 23:49:54,463 INFO L226 Difference]: Without dead ends: 6018 [2021-05-21 23:49:54,463 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 2429.0ms TimeCoverageRelationStatistics Valid=596, Invalid=2826, Unknown=0, NotChecked=0, Total=3422 [2021-05-21 23:49:54,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6018 states. [2021-05-21 23:49:54,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6018 to 5583. [2021-05-21 23:49:54,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5583 states, 5582 states have (on average 2.663024005732712) internal successors, (14865), 5582 states have internal predecessors, (14865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:54,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5583 states to 5583 states and 14865 transitions. [2021-05-21 23:49:54,527 INFO L78 Accepts]: Start accepts. Automaton has 5583 states and 14865 transitions. Word has length 119 [2021-05-21 23:49:54,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:49:54,527 INFO L482 AbstractCegarLoop]: Abstraction has 5583 states and 14865 transitions. [2021-05-21 23:49:54,527 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:54,527 INFO L276 IsEmpty]: Start isEmpty. Operand 5583 states and 14865 transitions. [2021-05-21 23:49:54,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:49:54,531 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:49:54,532 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:49:54,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-05-21 23:49:54,532 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:49:54,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:49:54,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1576841637, now seen corresponding path program 18 times [2021-05-21 23:49:54,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:49:54,532 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070890771] [2021-05-21 23:49:54,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:49:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:49:55,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:49:55,170 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:49:55,170 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070890771] [2021-05-21 23:49:55,170 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070890771] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:49:55,170 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:49:55,170 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:49:55,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865269228] [2021-05-21 23:49:55,170 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:49:55,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:49:55,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:49:55,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:49:55,171 INFO L87 Difference]: Start difference. First operand 5583 states and 14865 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:56,622 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-05-21 23:49:58,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:49:58,171 INFO L93 Difference]: Finished difference Result 6311 states and 16401 transitions. [2021-05-21 23:49:58,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:49:58,172 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:49:58,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:49:58,177 INFO L225 Difference]: With dead ends: 6311 [2021-05-21 23:49:58,177 INFO L226 Difference]: Without dead ends: 6008 [2021-05-21 23:49:58,178 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 2585.2ms TimeCoverageRelationStatistics Valid=623, Invalid=2917, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:49:58,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6008 states. [2021-05-21 23:49:58,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6008 to 5591. [2021-05-21 23:49:58,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5591 states, 5590 states have (on average 2.662075134168157) internal successors, (14881), 5590 states have internal predecessors, (14881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:58,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5591 states to 5591 states and 14881 transitions. [2021-05-21 23:49:58,243 INFO L78 Accepts]: Start accepts. Automaton has 5591 states and 14881 transitions. Word has length 119 [2021-05-21 23:49:58,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:49:58,243 INFO L482 AbstractCegarLoop]: Abstraction has 5591 states and 14881 transitions. [2021-05-21 23:49:58,243 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:49:58,243 INFO L276 IsEmpty]: Start isEmpty. Operand 5591 states and 14881 transitions. [2021-05-21 23:49:58,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:49:58,248 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:49:58,248 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:49:58,248 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-05-21 23:49:58,248 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:49:58,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:49:58,248 INFO L82 PathProgramCache]: Analyzing trace with hash 403010167, now seen corresponding path program 19 times [2021-05-21 23:49:58,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:49:58,248 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383460263] [2021-05-21 23:49:58,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:49:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:49:58,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:49:58,934 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:49:58,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383460263] [2021-05-21 23:49:58,935 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383460263] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:49:58,935 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:49:58,935 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:49:58,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199780328] [2021-05-21 23:49:58,935 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:49:58,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:49:58,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:49:58,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:49:58,935 INFO L87 Difference]: Start difference. First operand 5591 states and 14881 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:02,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:50:02,001 INFO L93 Difference]: Finished difference Result 6234 states and 16220 transitions. [2021-05-21 23:50:02,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:50:02,001 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:50:02,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:50:02,007 INFO L225 Difference]: With dead ends: 6234 [2021-05-21 23:50:02,007 INFO L226 Difference]: Without dead ends: 5814 [2021-05-21 23:50:02,007 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 2648.8ms TimeCoverageRelationStatistics Valid=606, Invalid=2934, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:50:02,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5814 states. [2021-05-21 23:50:02,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5814 to 5499. [2021-05-21 23:50:02,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5498 states have (on average 2.6655147326300472) internal successors, (14655), 5498 states have internal predecessors, (14655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:02,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 14655 transitions. [2021-05-21 23:50:02,074 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 14655 transitions. Word has length 119 [2021-05-21 23:50:02,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:50:02,075 INFO L482 AbstractCegarLoop]: Abstraction has 5499 states and 14655 transitions. [2021-05-21 23:50:02,075 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:02,075 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 14655 transitions. [2021-05-21 23:50:02,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:50:02,079 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:50:02,079 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:50:02,080 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-05-21 23:50:02,080 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:50:02,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:50:02,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1688070599, now seen corresponding path program 20 times [2021-05-21 23:50:02,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:50:02,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585320805] [2021-05-21 23:50:02,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:50:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:50:02,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:50:02,724 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:50:02,724 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585320805] [2021-05-21 23:50:02,724 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585320805] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:50:02,724 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:50:02,725 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:50:02,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480120557] [2021-05-21 23:50:02,725 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:50:02,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:50:02,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:50:02,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:50:02,725 INFO L87 Difference]: Start difference. First operand 5499 states and 14655 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:03,915 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2021-05-21 23:50:04,078 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-05-21 23:50:04,332 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-05-21 23:50:05,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:50:05,797 INFO L93 Difference]: Finished difference Result 6628 states and 17443 transitions. [2021-05-21 23:50:05,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-21 23:50:05,797 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:50:05,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:50:05,802 INFO L225 Difference]: With dead ends: 6628 [2021-05-21 23:50:05,802 INFO L226 Difference]: Without dead ends: 6419 [2021-05-21 23:50:05,803 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 2487.1ms TimeCoverageRelationStatistics Valid=506, Invalid=2574, Unknown=0, NotChecked=0, Total=3080 [2021-05-21 23:50:05,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6419 states. [2021-05-21 23:50:05,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6419 to 5835. [2021-05-21 23:50:05,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5835 states, 5834 states have (on average 2.655296537538567) internal successors, (15491), 5834 states have internal predecessors, (15491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:05,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5835 states to 5835 states and 15491 transitions. [2021-05-21 23:50:05,872 INFO L78 Accepts]: Start accepts. Automaton has 5835 states and 15491 transitions. Word has length 119 [2021-05-21 23:50:05,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:50:05,872 INFO L482 AbstractCegarLoop]: Abstraction has 5835 states and 15491 transitions. [2021-05-21 23:50:05,877 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:05,877 INFO L276 IsEmpty]: Start isEmpty. Operand 5835 states and 15491 transitions. [2021-05-21 23:50:05,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:50:05,883 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:50:05,883 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:50:05,883 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-05-21 23:50:05,883 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:50:05,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:50:05,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1285930947, now seen corresponding path program 21 times [2021-05-21 23:50:05,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:50:05,887 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911827435] [2021-05-21 23:50:05,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:50:05,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:50:06,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:50:06,544 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:50:06,544 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911827435] [2021-05-21 23:50:06,545 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911827435] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:50:06,545 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:50:06,545 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:50:06,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407937901] [2021-05-21 23:50:06,545 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:50:06,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:50:06,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:50:06,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:50:06,545 INFO L87 Difference]: Start difference. First operand 5835 states and 15491 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:07,773 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-05-21 23:50:09,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:50:09,316 INFO L93 Difference]: Finished difference Result 6975 states and 18261 transitions. [2021-05-21 23:50:09,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-21 23:50:09,316 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:50:09,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:50:09,321 INFO L225 Difference]: With dead ends: 6975 [2021-05-21 23:50:09,321 INFO L226 Difference]: Without dead ends: 6499 [2021-05-21 23:50:09,321 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 2381.9ms TimeCoverageRelationStatistics Valid=535, Invalid=2657, Unknown=0, NotChecked=0, Total=3192 [2021-05-21 23:50:09,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6499 states. [2021-05-21 23:50:09,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6499 to 5907. [2021-05-21 23:50:09,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5907 states, 5906 states have (on average 2.643244158482899) internal successors, (15611), 5906 states have internal predecessors, (15611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:09,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5907 states to 5907 states and 15611 transitions. [2021-05-21 23:50:09,390 INFO L78 Accepts]: Start accepts. Automaton has 5907 states and 15611 transitions. Word has length 119 [2021-05-21 23:50:09,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:50:09,390 INFO L482 AbstractCegarLoop]: Abstraction has 5907 states and 15611 transitions. [2021-05-21 23:50:09,390 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:09,390 INFO L276 IsEmpty]: Start isEmpty. Operand 5907 states and 15611 transitions. [2021-05-21 23:50:09,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:50:09,395 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:50:09,395 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:50:09,395 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-05-21 23:50:09,395 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:50:09,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:50:09,396 INFO L82 PathProgramCache]: Analyzing trace with hash -77505583, now seen corresponding path program 22 times [2021-05-21 23:50:09,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:50:09,396 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512201946] [2021-05-21 23:50:09,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:50:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:50:10,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:50:10,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:50:10,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512201946] [2021-05-21 23:50:10,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512201946] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:50:10,070 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:50:10,070 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:50:10,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537443748] [2021-05-21 23:50:10,071 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:50:10,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:50:10,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:50:10,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:50:10,071 INFO L87 Difference]: Start difference. First operand 5907 states and 15611 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:11,274 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-05-21 23:50:12,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:50:12,850 INFO L93 Difference]: Finished difference Result 6632 states and 17338 transitions. [2021-05-21 23:50:12,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-21 23:50:12,850 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:50:12,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:50:12,854 INFO L225 Difference]: With dead ends: 6632 [2021-05-21 23:50:12,854 INFO L226 Difference]: Without dead ends: 6091 [2021-05-21 23:50:12,855 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 2440.8ms TimeCoverageRelationStatistics Valid=537, Invalid=2769, Unknown=0, NotChecked=0, Total=3306 [2021-05-21 23:50:12,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6091 states. [2021-05-21 23:50:12,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6091 to 5499. [2021-05-21 23:50:12,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5498 states have (on average 2.661149508912332) internal successors, (14631), 5498 states have internal predecessors, (14631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:12,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 14631 transitions. [2021-05-21 23:50:12,914 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 14631 transitions. Word has length 119 [2021-05-21 23:50:12,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:50:12,915 INFO L482 AbstractCegarLoop]: Abstraction has 5499 states and 14631 transitions. [2021-05-21 23:50:12,915 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:12,915 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 14631 transitions. [2021-05-21 23:50:12,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:50:12,919 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:50:12,920 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:50:12,927 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-05-21 23:50:12,927 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:50:12,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:50:12,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1680735495, now seen corresponding path program 23 times [2021-05-21 23:50:12,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:50:12,927 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042841035] [2021-05-21 23:50:12,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:50:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:50:13,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:50:13,523 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:50:13,523 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042841035] [2021-05-21 23:50:13,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042841035] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:50:13,523 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:50:13,524 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:50:13,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43088507] [2021-05-21 23:50:13,524 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:50:13,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:50:13,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:50:13,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:50:13,524 INFO L87 Difference]: Start difference. First operand 5499 states and 14631 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:14,733 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-05-21 23:50:15,209 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-05-21 23:50:16,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:50:16,177 INFO L93 Difference]: Finished difference Result 6138 states and 16176 transitions. [2021-05-21 23:50:16,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-21 23:50:16,178 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:50:16,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:50:16,182 INFO L225 Difference]: With dead ends: 6138 [2021-05-21 23:50:16,182 INFO L226 Difference]: Without dead ends: 5901 [2021-05-21 23:50:16,182 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 2292.2ms TimeCoverageRelationStatistics Valid=523, Invalid=2557, Unknown=0, NotChecked=0, Total=3080 [2021-05-21 23:50:16,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5901 states. [2021-05-21 23:50:16,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5901 to 5475. [2021-05-21 23:50:16,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.664048227986847) internal successors, (14583), 5474 states have internal predecessors, (14583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:16,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14583 transitions. [2021-05-21 23:50:16,245 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14583 transitions. Word has length 119 [2021-05-21 23:50:16,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:50:16,245 INFO L482 AbstractCegarLoop]: Abstraction has 5475 states and 14583 transitions. [2021-05-21 23:50:16,245 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:16,245 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14583 transitions. [2021-05-21 23:50:16,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:50:16,249 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:50:16,250 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:50:16,250 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-05-21 23:50:16,250 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:50:16,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:50:16,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1583157163, now seen corresponding path program 24 times [2021-05-21 23:50:16,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:50:16,250 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505660981] [2021-05-21 23:50:16,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:50:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:50:16,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:50:16,860 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:50:16,860 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505660981] [2021-05-21 23:50:16,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505660981] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:50:16,860 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:50:16,860 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:50:16,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569069467] [2021-05-21 23:50:16,860 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:50:16,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:50:16,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:50:16,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:50:16,861 INFO L87 Difference]: Start difference. First operand 5475 states and 14583 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:19,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:50:19,704 INFO L93 Difference]: Finished difference Result 6818 states and 17919 transitions. [2021-05-21 23:50:19,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-21 23:50:19,704 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:50:19,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:50:19,710 INFO L225 Difference]: With dead ends: 6818 [2021-05-21 23:50:19,711 INFO L226 Difference]: Without dead ends: 6609 [2021-05-21 23:50:19,711 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 2351.5ms TimeCoverageRelationStatistics Valid=495, Invalid=2585, Unknown=0, NotChecked=0, Total=3080 [2021-05-21 23:50:19,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6609 states. [2021-05-21 23:50:19,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6609 to 5931. [2021-05-21 23:50:19,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5931 states, 5930 states have (on average 2.6568296795952784) internal successors, (15755), 5930 states have internal predecessors, (15755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:19,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5931 states to 5931 states and 15755 transitions. [2021-05-21 23:50:19,782 INFO L78 Accepts]: Start accepts. Automaton has 5931 states and 15755 transitions. Word has length 119 [2021-05-21 23:50:19,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:50:19,782 INFO L482 AbstractCegarLoop]: Abstraction has 5931 states and 15755 transitions. [2021-05-21 23:50:19,782 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:19,783 INFO L276 IsEmpty]: Start isEmpty. Operand 5931 states and 15755 transitions. [2021-05-21 23:50:19,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:50:19,787 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:50:19,787 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:50:19,787 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-05-21 23:50:19,787 INFO L430 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:50:19,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:50:19,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1181017511, now seen corresponding path program 25 times [2021-05-21 23:50:19,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:50:19,788 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963654798] [2021-05-21 23:50:19,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:50:19,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:50:20,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:50:20,391 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:50:20,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963654798] [2021-05-21 23:50:20,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963654798] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:50:20,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:50:20,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:50:20,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454823970] [2021-05-21 23:50:20,392 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:50:20,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:50:20,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:50:20,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:50:20,392 INFO L87 Difference]: Start difference. First operand 5931 states and 15755 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:21,830 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2021-05-21 23:50:23,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:50:23,177 INFO L93 Difference]: Finished difference Result 7165 states and 18737 transitions. [2021-05-21 23:50:23,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-21 23:50:23,178 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:50:23,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:50:23,184 INFO L225 Difference]: With dead ends: 7165 [2021-05-21 23:50:23,184 INFO L226 Difference]: Without dead ends: 6689 [2021-05-21 23:50:23,184 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 2371.4ms TimeCoverageRelationStatistics Valid=521, Invalid=2671, Unknown=0, NotChecked=0, Total=3192 [2021-05-21 23:50:23,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6689 states. [2021-05-21 23:50:23,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6689 to 6003. [2021-05-21 23:50:23,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6003 states, 6002 states have (on average 2.644951682772409) internal successors, (15875), 6002 states have internal predecessors, (15875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:23,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6003 states to 6003 states and 15875 transitions. [2021-05-21 23:50:23,259 INFO L78 Accepts]: Start accepts. Automaton has 6003 states and 15875 transitions. Word has length 119 [2021-05-21 23:50:23,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:50:23,259 INFO L482 AbstractCegarLoop]: Abstraction has 6003 states and 15875 transitions. [2021-05-21 23:50:23,260 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:23,260 INFO L276 IsEmpty]: Start isEmpty. Operand 6003 states and 15875 transitions. [2021-05-21 23:50:23,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:50:23,265 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:50:23,265 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:50:23,265 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-05-21 23:50:23,265 INFO L430 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:50:23,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:50:23,265 INFO L82 PathProgramCache]: Analyzing trace with hash 27407853, now seen corresponding path program 26 times [2021-05-21 23:50:23,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:50:23,265 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915461348] [2021-05-21 23:50:23,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:50:23,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:50:23,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:50:23,879 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:50:23,879 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915461348] [2021-05-21 23:50:23,879 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915461348] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:50:23,879 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:50:23,879 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:50:23,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679513563] [2021-05-21 23:50:23,879 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:50:23,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:50:23,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:50:23,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:50:23,880 INFO L87 Difference]: Start difference. First operand 6003 states and 15875 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:26,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:50:26,627 INFO L93 Difference]: Finished difference Result 6822 states and 17814 transitions. [2021-05-21 23:50:26,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-21 23:50:26,627 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:50:26,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:50:26,633 INFO L225 Difference]: With dead ends: 6822 [2021-05-21 23:50:26,633 INFO L226 Difference]: Without dead ends: 6281 [2021-05-21 23:50:26,633 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 2225.5ms TimeCoverageRelationStatistics Valid=528, Invalid=2778, Unknown=0, NotChecked=0, Total=3306 [2021-05-21 23:50:26,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6281 states. [2021-05-21 23:50:26,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6281 to 5595. [2021-05-21 23:50:26,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5595 states, 5594 states have (on average 2.645513049696103) internal successors, (14799), 5594 states have internal predecessors, (14799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:26,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5595 states to 5595 states and 14799 transitions. [2021-05-21 23:50:26,699 INFO L78 Accepts]: Start accepts. Automaton has 5595 states and 14799 transitions. Word has length 119 [2021-05-21 23:50:26,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:50:26,699 INFO L482 AbstractCegarLoop]: Abstraction has 5595 states and 14799 transitions. [2021-05-21 23:50:26,699 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:26,699 INFO L276 IsEmpty]: Start isEmpty. Operand 5595 states and 14799 transitions. [2021-05-21 23:50:26,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:50:26,703 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:50:26,703 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:50:26,703 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-05-21 23:50:26,703 INFO L430 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:50:26,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:50:26,704 INFO L82 PathProgramCache]: Analyzing trace with hash -2048916275, now seen corresponding path program 27 times [2021-05-21 23:50:26,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:50:26,704 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181362197] [2021-05-21 23:50:26,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:50:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:50:27,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:50:27,293 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:50:27,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181362197] [2021-05-21 23:50:27,294 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181362197] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:50:27,294 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:50:27,294 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:50:27,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037524951] [2021-05-21 23:50:27,294 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:50:27,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:50:27,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:50:27,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:50:27,294 INFO L87 Difference]: Start difference. First operand 5595 states and 14799 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:30,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:50:30,095 INFO L93 Difference]: Finished difference Result 6345 states and 16601 transitions. [2021-05-21 23:50:30,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-21 23:50:30,095 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:50:30,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:50:30,101 INFO L225 Difference]: With dead ends: 6345 [2021-05-21 23:50:30,101 INFO L226 Difference]: Without dead ends: 5991 [2021-05-21 23:50:30,101 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 2237.7ms TimeCoverageRelationStatistics Valid=495, Invalid=2585, Unknown=0, NotChecked=0, Total=3080 [2021-05-21 23:50:30,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5991 states. [2021-05-21 23:50:30,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5991 to 5475. [2021-05-21 23:50:30,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6596638655462184) internal successors, (14559), 5474 states have internal predecessors, (14559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:30,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14559 transitions. [2021-05-21 23:50:30,163 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14559 transitions. Word has length 119 [2021-05-21 23:50:30,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:50:30,163 INFO L482 AbstractCegarLoop]: Abstraction has 5475 states and 14559 transitions. [2021-05-21 23:50:30,163 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:30,163 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14559 transitions. [2021-05-21 23:50:30,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:50:30,167 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:50:30,167 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:50:30,167 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-05-21 23:50:30,167 INFO L430 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:50:30,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:50:30,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1365244011, now seen corresponding path program 28 times [2021-05-21 23:50:30,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:50:30,168 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172508443] [2021-05-21 23:50:30,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:50:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:50:30,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:50:30,774 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:50:30,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172508443] [2021-05-21 23:50:30,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172508443] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:50:30,774 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:50:30,774 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:50:30,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111208997] [2021-05-21 23:50:30,774 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:50:30,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:50:30,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:50:30,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:50:30,775 INFO L87 Difference]: Start difference. First operand 5475 states and 14559 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:32,341 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-05-21 23:50:33,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:50:33,448 INFO L93 Difference]: Finished difference Result 6126 states and 16130 transitions. [2021-05-21 23:50:33,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-21 23:50:33,448 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:50:33,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:50:33,454 INFO L225 Difference]: With dead ends: 6126 [2021-05-21 23:50:33,454 INFO L226 Difference]: Without dead ends: 5913 [2021-05-21 23:50:33,455 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 2304.0ms TimeCoverageRelationStatistics Valid=523, Invalid=2557, Unknown=0, NotChecked=0, Total=3080 [2021-05-21 23:50:33,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5913 states. [2021-05-21 23:50:33,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5913 to 5479. [2021-05-21 23:50:33,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6588170865279297) internal successors, (14565), 5478 states have internal predecessors, (14565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:33,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14565 transitions. [2021-05-21 23:50:33,521 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14565 transitions. Word has length 119 [2021-05-21 23:50:33,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:50:33,521 INFO L482 AbstractCegarLoop]: Abstraction has 5479 states and 14565 transitions. [2021-05-21 23:50:33,521 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:33,521 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14565 transitions. [2021-05-21 23:50:33,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:50:33,526 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:50:33,526 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:50:33,526 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-05-21 23:50:33,526 INFO L430 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:50:33,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:50:33,526 INFO L82 PathProgramCache]: Analyzing trace with hash -778647481, now seen corresponding path program 29 times [2021-05-21 23:50:33,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:50:33,527 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043009741] [2021-05-21 23:50:33,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:50:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:50:34,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:50:34,180 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:50:34,180 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043009741] [2021-05-21 23:50:34,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043009741] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:50:34,180 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:50:34,180 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:50:34,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745531427] [2021-05-21 23:50:34,181 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:50:34,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:50:34,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:50:34,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:50:34,181 INFO L87 Difference]: Start difference. First operand 5479 states and 14565 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:36,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:50:36,937 INFO L93 Difference]: Finished difference Result 6143 states and 16171 transitions. [2021-05-21 23:50:36,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-21 23:50:36,937 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:50:36,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:50:36,943 INFO L225 Difference]: With dead ends: 6143 [2021-05-21 23:50:36,943 INFO L226 Difference]: Without dead ends: 5881 [2021-05-21 23:50:36,943 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 2409.3ms TimeCoverageRelationStatistics Valid=506, Invalid=2574, Unknown=0, NotChecked=0, Total=3080 [2021-05-21 23:50:36,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5881 states. [2021-05-21 23:50:36,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5881 to 5451. [2021-05-21 23:50:36,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.6625688073394493) internal successors, (14511), 5450 states have internal predecessors, (14511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:37,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14511 transitions. [2021-05-21 23:50:37,005 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14511 transitions. Word has length 119 [2021-05-21 23:50:37,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:50:37,005 INFO L482 AbstractCegarLoop]: Abstraction has 5451 states and 14511 transitions. [2021-05-21 23:50:37,005 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:37,005 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14511 transitions. [2021-05-21 23:50:37,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:50:37,009 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:50:37,010 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:50:37,010 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-05-21 23:50:37,010 INFO L430 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:50:37,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:50:37,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1252077221, now seen corresponding path program 30 times [2021-05-21 23:50:37,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:50:37,010 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32649083] [2021-05-21 23:50:37,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:50:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:50:37,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:50:37,618 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:50:37,618 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32649083] [2021-05-21 23:50:37,618 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32649083] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:50:37,618 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:50:37,618 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:50:37,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367461516] [2021-05-21 23:50:37,619 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:50:37,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:50:37,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:50:37,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:50:37,619 INFO L87 Difference]: Start difference. First operand 5451 states and 14511 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:40,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:50:40,350 INFO L93 Difference]: Finished difference Result 7338 states and 19245 transitions. [2021-05-21 23:50:40,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-21 23:50:40,351 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:50:40,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:50:40,357 INFO L225 Difference]: With dead ends: 7338 [2021-05-21 23:50:40,358 INFO L226 Difference]: Without dead ends: 7129 [2021-05-21 23:50:40,358 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 2258.9ms TimeCoverageRelationStatistics Valid=490, Invalid=2590, Unknown=0, NotChecked=0, Total=3080 [2021-05-21 23:50:40,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7129 states. [2021-05-21 23:50:40,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7129 to 5631. [2021-05-21 23:50:40,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5631 states, 5630 states have (on average 2.657726465364121) internal successors, (14963), 5630 states have internal predecessors, (14963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:40,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5631 states to 5631 states and 14963 transitions. [2021-05-21 23:50:40,429 INFO L78 Accepts]: Start accepts. Automaton has 5631 states and 14963 transitions. Word has length 119 [2021-05-21 23:50:40,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:50:40,429 INFO L482 AbstractCegarLoop]: Abstraction has 5631 states and 14963 transitions. [2021-05-21 23:50:40,429 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:40,430 INFO L276 IsEmpty]: Start isEmpty. Operand 5631 states and 14963 transitions. [2021-05-21 23:50:40,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:50:40,434 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:50:40,434 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:50:40,434 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-05-21 23:50:40,434 INFO L430 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:50:40,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:50:40,434 INFO L82 PathProgramCache]: Analyzing trace with hash -849937569, now seen corresponding path program 31 times [2021-05-21 23:50:40,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:50:40,435 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664227423] [2021-05-21 23:50:40,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:50:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:50:41,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:50:41,081 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:50:41,082 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664227423] [2021-05-21 23:50:41,082 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664227423] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:50:41,082 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:50:41,082 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:50:41,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914195696] [2021-05-21 23:50:41,082 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:50:41,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:50:41,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:50:41,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:50:41,082 INFO L87 Difference]: Start difference. First operand 5631 states and 14963 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:43,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:50:43,899 INFO L93 Difference]: Finished difference Result 7685 states and 20063 transitions. [2021-05-21 23:50:43,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-21 23:50:43,900 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:50:43,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:50:43,907 INFO L225 Difference]: With dead ends: 7685 [2021-05-21 23:50:43,907 INFO L226 Difference]: Without dead ends: 7209 [2021-05-21 23:50:43,907 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 2405.0ms TimeCoverageRelationStatistics Valid=513, Invalid=2679, Unknown=0, NotChecked=0, Total=3192 [2021-05-21 23:50:43,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7209 states. [2021-05-21 23:50:43,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7209 to 5703. [2021-05-21 23:50:43,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5703 states, 5702 states have (on average 2.6452122062434236) internal successors, (15083), 5702 states have internal predecessors, (15083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:43,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5703 states to 5703 states and 15083 transitions. [2021-05-21 23:50:43,984 INFO L78 Accepts]: Start accepts. Automaton has 5703 states and 15083 transitions. Word has length 119 [2021-05-21 23:50:43,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:50:43,984 INFO L482 AbstractCegarLoop]: Abstraction has 5703 states and 15083 transitions. [2021-05-21 23:50:43,984 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:43,984 INFO L276 IsEmpty]: Start isEmpty. Operand 5703 states and 15083 transitions. [2021-05-21 23:50:43,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:50:43,989 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:50:43,989 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:50:43,989 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-05-21 23:50:43,989 INFO L430 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:50:43,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:50:43,990 INFO L82 PathProgramCache]: Analyzing trace with hash 358487795, now seen corresponding path program 32 times [2021-05-21 23:50:43,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:50:43,990 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503017565] [2021-05-21 23:50:43,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:50:44,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:50:44,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:50:44,704 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:50:44,704 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503017565] [2021-05-21 23:50:44,704 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503017565] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:50:44,704 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:50:44,704 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:50:44,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350324700] [2021-05-21 23:50:44,704 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:50:44,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:50:44,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:50:44,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:50:44,705 INFO L87 Difference]: Start difference. First operand 5703 states and 15083 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:46,628 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2021-05-21 23:50:46,875 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2021-05-21 23:50:47,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:50:47,671 INFO L93 Difference]: Finished difference Result 7342 states and 19140 transitions. [2021-05-21 23:50:47,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-21 23:50:47,671 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:50:47,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:50:47,678 INFO L225 Difference]: With dead ends: 7342 [2021-05-21 23:50:47,678 INFO L226 Difference]: Without dead ends: 6801 [2021-05-21 23:50:47,679 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 2531.3ms TimeCoverageRelationStatistics Valid=519, Invalid=2787, Unknown=0, NotChecked=0, Total=3306 [2021-05-21 23:50:47,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6801 states. [2021-05-21 23:50:47,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6801 to 5295. [2021-05-21 23:50:47,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 2.645825462788062) internal successors, (14007), 5294 states have internal predecessors, (14007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:47,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 14007 transitions. [2021-05-21 23:50:47,762 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 14007 transitions. Word has length 119 [2021-05-21 23:50:47,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:50:47,762 INFO L482 AbstractCegarLoop]: Abstraction has 5295 states and 14007 transitions. [2021-05-21 23:50:47,762 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:47,762 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 14007 transitions. [2021-05-21 23:50:47,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:50:47,766 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:50:47,766 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:50:47,766 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-05-21 23:50:47,766 INFO L430 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:50:47,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:50:47,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1717836333, now seen corresponding path program 33 times [2021-05-21 23:50:47,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:50:47,767 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89224692] [2021-05-21 23:50:47,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:50:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:50:48,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:50:48,345 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:50:48,345 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89224692] [2021-05-21 23:50:48,345 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89224692] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:50:48,345 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:50:48,345 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:50:48,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743955356] [2021-05-21 23:50:48,345 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:50:48,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:50:48,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:50:48,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:50:48,346 INFO L87 Difference]: Start difference. First operand 5295 states and 14007 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:51,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:50:51,007 INFO L93 Difference]: Finished difference Result 6938 states and 18089 transitions. [2021-05-21 23:50:51,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-21 23:50:51,007 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:50:51,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:50:51,012 INFO L225 Difference]: With dead ends: 6938 [2021-05-21 23:50:51,012 INFO L226 Difference]: Without dead ends: 6584 [2021-05-21 23:50:51,012 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 2203.2ms TimeCoverageRelationStatistics Valid=490, Invalid=2590, Unknown=0, NotChecked=0, Total=3080 [2021-05-21 23:50:51,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6584 states. [2021-05-21 23:50:51,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6584 to 5175. [2021-05-21 23:50:51,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5175 states, 5174 states have (on average 2.642249710088906) internal successors, (13671), 5174 states have internal predecessors, (13671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:51,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5175 states to 5175 states and 13671 transitions. [2021-05-21 23:50:51,070 INFO L78 Accepts]: Start accepts. Automaton has 5175 states and 13671 transitions. Word has length 119 [2021-05-21 23:50:51,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:50:51,070 INFO L482 AbstractCegarLoop]: Abstraction has 5175 states and 13671 transitions. [2021-05-21 23:50:51,070 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:51,070 INFO L276 IsEmpty]: Start isEmpty. Operand 5175 states and 13671 transitions. [2021-05-21 23:50:51,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:50:51,074 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:50:51,074 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:50:51,075 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-05-21 23:50:51,075 INFO L430 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:50:51,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:50:51,075 INFO L82 PathProgramCache]: Analyzing trace with hash -849843749, now seen corresponding path program 34 times [2021-05-21 23:50:51,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:50:51,075 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479210267] [2021-05-21 23:50:51,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:50:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:50:51,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:50:51,714 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:50:51,714 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479210267] [2021-05-21 23:50:51,714 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479210267] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:50:51,714 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:50:51,714 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:50:51,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330449211] [2021-05-21 23:50:51,715 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:50:51,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:50:51,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:50:51,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:50:51,715 INFO L87 Difference]: Start difference. First operand 5175 states and 13671 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:53,837 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-05-21 23:50:54,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:50:54,687 INFO L93 Difference]: Finished difference Result 7067 states and 18258 transitions. [2021-05-21 23:50:54,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-21 23:50:54,687 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:50:54,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:50:54,692 INFO L225 Difference]: With dead ends: 7067 [2021-05-21 23:50:54,692 INFO L226 Difference]: Without dead ends: 6353 [2021-05-21 23:50:54,693 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 2505.0ms TimeCoverageRelationStatistics Valid=539, Invalid=2883, Unknown=0, NotChecked=0, Total=3422 [2021-05-21 23:50:54,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6353 states. [2021-05-21 23:50:54,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6353 to 4770. [2021-05-21 23:50:54,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4770 states, 4769 states have (on average 2.6464667645208637) internal successors, (12621), 4769 states have internal predecessors, (12621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:54,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4770 states to 4770 states and 12621 transitions. [2021-05-21 23:50:54,749 INFO L78 Accepts]: Start accepts. Automaton has 4770 states and 12621 transitions. Word has length 119 [2021-05-21 23:50:54,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:50:54,749 INFO L482 AbstractCegarLoop]: Abstraction has 4770 states and 12621 transitions. [2021-05-21 23:50:54,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:54,750 INFO L276 IsEmpty]: Start isEmpty. Operand 4770 states and 12621 transitions. [2021-05-21 23:50:54,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:50:54,753 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:50:54,753 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:50:54,753 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-05-21 23:50:54,760 INFO L430 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:50:54,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:50:54,761 INFO L82 PathProgramCache]: Analyzing trace with hash 972938779, now seen corresponding path program 35 times [2021-05-21 23:50:54,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:50:54,761 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039456790] [2021-05-21 23:50:54,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:50:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:50:55,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:50:55,385 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:50:55,385 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039456790] [2021-05-21 23:50:55,385 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039456790] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:50:55,385 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:50:55,385 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:50:55,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224755975] [2021-05-21 23:50:55,385 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:50:55,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:50:55,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:50:55,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:50:55,386 INFO L87 Difference]: Start difference. First operand 4770 states and 12621 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:56,899 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-05-21 23:50:58,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:50:58,014 INFO L93 Difference]: Finished difference Result 5523 states and 14426 transitions. [2021-05-21 23:50:58,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-21 23:50:58,015 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:50:58,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:50:58,019 INFO L225 Difference]: With dead ends: 5523 [2021-05-21 23:50:58,019 INFO L226 Difference]: Without dead ends: 5310 [2021-05-21 23:50:58,019 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 2283.4ms TimeCoverageRelationStatistics Valid=523, Invalid=2557, Unknown=0, NotChecked=0, Total=3080 [2021-05-21 23:50:58,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5310 states. [2021-05-21 23:50:58,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5310 to 4786. [2021-05-21 23:50:58,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4786 states, 4785 states have (on average 2.645141065830721) internal successors, (12657), 4785 states have internal predecessors, (12657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:58,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4786 states to 4786 states and 12657 transitions. [2021-05-21 23:50:58,069 INFO L78 Accepts]: Start accepts. Automaton has 4786 states and 12657 transitions. Word has length 119 [2021-05-21 23:50:58,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:50:58,070 INFO L482 AbstractCegarLoop]: Abstraction has 4786 states and 12657 transitions. [2021-05-21 23:50:58,070 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:50:58,070 INFO L276 IsEmpty]: Start isEmpty. Operand 4786 states and 12657 transitions. [2021-05-21 23:50:58,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:50:58,073 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:50:58,074 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:50:58,074 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-05-21 23:50:58,074 INFO L430 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:50:58,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:50:58,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1170952713, now seen corresponding path program 36 times [2021-05-21 23:50:58,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:50:58,074 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678471237] [2021-05-21 23:50:58,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:50:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:50:58,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:50:58,754 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:50:58,754 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678471237] [2021-05-21 23:50:58,754 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678471237] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:50:58,754 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:50:58,754 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:50:58,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524713820] [2021-05-21 23:50:58,754 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:50:58,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:50:58,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:50:58,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:50:58,755 INFO L87 Difference]: Start difference. First operand 4786 states and 12657 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:00,432 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-05-21 23:51:01,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:51:01,357 INFO L93 Difference]: Finished difference Result 5544 states and 14473 transitions. [2021-05-21 23:51:01,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-21 23:51:01,358 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:51:01,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:51:01,362 INFO L225 Difference]: With dead ends: 5544 [2021-05-21 23:51:01,362 INFO L226 Difference]: Without dead ends: 5306 [2021-05-21 23:51:01,362 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 2352.1ms TimeCoverageRelationStatistics Valid=506, Invalid=2574, Unknown=0, NotChecked=0, Total=3080 [2021-05-21 23:51:01,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5306 states. [2021-05-21 23:51:01,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5306 to 4782. [2021-05-21 23:51:01,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4782 states, 4781 states have (on average 2.645262497385484) internal successors, (12647), 4781 states have internal predecessors, (12647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:01,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4782 states to 4782 states and 12647 transitions. [2021-05-21 23:51:01,412 INFO L78 Accepts]: Start accepts. Automaton has 4782 states and 12647 transitions. Word has length 119 [2021-05-21 23:51:01,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:51:01,412 INFO L482 AbstractCegarLoop]: Abstraction has 4782 states and 12647 transitions. [2021-05-21 23:51:01,412 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:01,412 INFO L276 IsEmpty]: Start isEmpty. Operand 4782 states and 12647 transitions. [2021-05-21 23:51:01,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:51:01,416 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:51:01,416 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:51:01,416 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-05-21 23:51:01,416 INFO L430 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:51:01,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:51:01,417 INFO L82 PathProgramCache]: Analyzing trace with hash 916663771, now seen corresponding path program 37 times [2021-05-21 23:51:01,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:51:01,417 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924773419] [2021-05-21 23:51:01,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:51:01,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:51:02,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:51:02,027 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:51:02,027 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924773419] [2021-05-21 23:51:02,027 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924773419] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:51:02,027 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:51:02,027 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:51:02,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573395062] [2021-05-21 23:51:02,027 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:51:02,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:51:02,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:51:02,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:51:02,028 INFO L87 Difference]: Start difference. First operand 4782 states and 12647 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:04,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:51:04,796 INFO L93 Difference]: Finished difference Result 5863 states and 15134 transitions. [2021-05-21 23:51:04,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-21 23:51:04,796 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:51:04,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:51:04,800 INFO L225 Difference]: With dead ends: 5863 [2021-05-21 23:51:04,800 INFO L226 Difference]: Without dead ends: 5461 [2021-05-21 23:51:04,801 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 2397.1ms TimeCoverageRelationStatistics Valid=571, Invalid=2851, Unknown=0, NotChecked=0, Total=3422 [2021-05-21 23:51:04,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5461 states. [2021-05-21 23:51:04,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5461 to 4689. [2021-05-21 23:51:04,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4689 states, 4688 states have (on average 2.6473976109215016) internal successors, (12411), 4688 states have internal predecessors, (12411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:04,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4689 states to 4689 states and 12411 transitions. [2021-05-21 23:51:04,854 INFO L78 Accepts]: Start accepts. Automaton has 4689 states and 12411 transitions. Word has length 119 [2021-05-21 23:51:04,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:51:04,854 INFO L482 AbstractCegarLoop]: Abstraction has 4689 states and 12411 transitions. [2021-05-21 23:51:04,854 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:04,854 INFO L276 IsEmpty]: Start isEmpty. Operand 4689 states and 12411 transitions. [2021-05-21 23:51:04,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:51:04,858 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:51:04,858 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:51:04,858 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-05-21 23:51:04,858 INFO L430 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:51:04,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:51:04,858 INFO L82 PathProgramCache]: Analyzing trace with hash 61921003, now seen corresponding path program 38 times [2021-05-21 23:51:04,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:51:04,858 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389887818] [2021-05-21 23:51:04,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:51:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:51:05,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:51:05,497 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:51:05,498 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389887818] [2021-05-21 23:51:05,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389887818] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:51:05,498 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:51:05,498 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:51:05,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437367441] [2021-05-21 23:51:05,498 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:51:05,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:51:05,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:51:05,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:51:05,499 INFO L87 Difference]: Start difference. First operand 4689 states and 12411 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:06,741 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-05-21 23:51:06,934 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-05-21 23:51:08,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:51:08,314 INFO L93 Difference]: Finished difference Result 5411 states and 13961 transitions. [2021-05-21 23:51:08,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-21 23:51:08,315 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:51:08,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:51:08,319 INFO L225 Difference]: With dead ends: 5411 [2021-05-21 23:51:08,319 INFO L226 Difference]: Without dead ends: 5096 [2021-05-21 23:51:08,319 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 2410.0ms TimeCoverageRelationStatistics Valid=596, Invalid=2826, Unknown=0, NotChecked=0, Total=3422 [2021-05-21 23:51:08,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5096 states. [2021-05-21 23:51:08,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5096 to 4689. [2021-05-21 23:51:08,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4689 states, 4688 states have (on average 2.646117747440273) internal successors, (12405), 4688 states have internal predecessors, (12405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:08,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4689 states to 4689 states and 12405 transitions. [2021-05-21 23:51:08,370 INFO L78 Accepts]: Start accepts. Automaton has 4689 states and 12405 transitions. Word has length 119 [2021-05-21 23:51:08,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:51:08,370 INFO L482 AbstractCegarLoop]: Abstraction has 4689 states and 12405 transitions. [2021-05-21 23:51:08,370 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:08,370 INFO L276 IsEmpty]: Start isEmpty. Operand 4689 states and 12405 transitions. [2021-05-21 23:51:08,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:51:08,374 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:51:08,374 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:51:08,374 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-05-21 23:51:08,374 INFO L430 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:51:08,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:51:08,374 INFO L82 PathProgramCache]: Analyzing trace with hash 581281773, now seen corresponding path program 39 times [2021-05-21 23:51:08,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:51:08,374 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518405502] [2021-05-21 23:51:08,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:51:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:51:09,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:51:09,008 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:51:09,008 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518405502] [2021-05-21 23:51:09,008 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518405502] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:51:09,008 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:51:09,008 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:51:09,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130584626] [2021-05-21 23:51:09,009 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:51:09,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:51:09,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:51:09,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:51:09,009 INFO L87 Difference]: Start difference. First operand 4689 states and 12405 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:10,436 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-05-21 23:51:12,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:51:12,013 INFO L93 Difference]: Finished difference Result 5447 states and 14018 transitions. [2021-05-21 23:51:12,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:51:12,014 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:51:12,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:51:12,018 INFO L225 Difference]: With dead ends: 5447 [2021-05-21 23:51:12,018 INFO L226 Difference]: Without dead ends: 5144 [2021-05-21 23:51:12,019 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 663 ImplicationChecksByTransitivity, 2526.3ms TimeCoverageRelationStatistics Valid=623, Invalid=2917, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:51:12,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5144 states. [2021-05-21 23:51:12,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5144 to 4687. [2021-05-21 23:51:12,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4687 states, 4686 states have (on average 2.6453265044814342) internal successors, (12396), 4686 states have internal predecessors, (12396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:12,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4687 states to 4687 states and 12396 transitions. [2021-05-21 23:51:12,070 INFO L78 Accepts]: Start accepts. Automaton has 4687 states and 12396 transitions. Word has length 119 [2021-05-21 23:51:12,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:51:12,070 INFO L482 AbstractCegarLoop]: Abstraction has 4687 states and 12396 transitions. [2021-05-21 23:51:12,070 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:12,070 INFO L276 IsEmpty]: Start isEmpty. Operand 4687 states and 12396 transitions. [2021-05-21 23:51:12,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:51:12,074 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:51:12,074 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:51:12,074 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-05-21 23:51:12,074 INFO L430 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:51:12,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:51:12,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1733833719, now seen corresponding path program 40 times [2021-05-21 23:51:12,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:51:12,074 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235233058] [2021-05-21 23:51:12,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:51:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:51:12,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:51:12,759 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:51:12,760 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235233058] [2021-05-21 23:51:12,760 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235233058] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:51:12,760 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:51:12,760 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:51:12,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206544180] [2021-05-21 23:51:12,760 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:51:12,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:51:12,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:51:12,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:51:12,760 INFO L87 Difference]: Start difference. First operand 4687 states and 12396 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:15,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:51:15,869 INFO L93 Difference]: Finished difference Result 5360 states and 13812 transitions. [2021-05-21 23:51:15,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:51:15,870 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:51:15,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:51:15,874 INFO L225 Difference]: With dead ends: 5360 [2021-05-21 23:51:15,874 INFO L226 Difference]: Without dead ends: 5012 [2021-05-21 23:51:15,875 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 2631.7ms TimeCoverageRelationStatistics Valid=606, Invalid=2934, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:51:15,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5012 states. [2021-05-21 23:51:15,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5012 to 4631. [2021-05-21 23:51:15,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4631 states, 4630 states have (on average 2.647948164146868) internal successors, (12260), 4630 states have internal predecessors, (12260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:15,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4631 states to 4631 states and 12260 transitions. [2021-05-21 23:51:15,926 INFO L78 Accepts]: Start accepts. Automaton has 4631 states and 12260 transitions. Word has length 119 [2021-05-21 23:51:15,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:51:15,926 INFO L482 AbstractCegarLoop]: Abstraction has 4631 states and 12260 transitions. [2021-05-21 23:51:15,926 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:15,926 INFO L276 IsEmpty]: Start isEmpty. Operand 4631 states and 12260 transitions. [2021-05-21 23:51:15,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:51:15,930 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:51:15,930 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:51:15,930 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-05-21 23:51:15,930 INFO L430 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:51:15,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:51:15,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1511380245, now seen corresponding path program 41 times [2021-05-21 23:51:15,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:51:15,930 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902406394] [2021-05-21 23:51:15,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:51:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:51:16,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:51:16,591 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:51:16,591 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902406394] [2021-05-21 23:51:16,591 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902406394] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:51:16,591 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:51:16,591 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:51:16,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649805740] [2021-05-21 23:51:16,591 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:51:16,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:51:16,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:51:16,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:51:16,592 INFO L87 Difference]: Start difference. First operand 4631 states and 12260 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:18,070 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-05-21 23:51:19,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:51:19,170 INFO L93 Difference]: Finished difference Result 4998 states and 13025 transitions. [2021-05-21 23:51:19,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-21 23:51:19,170 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:51:19,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:51:19,175 INFO L225 Difference]: With dead ends: 4998 [2021-05-21 23:51:19,175 INFO L226 Difference]: Without dead ends: 4785 [2021-05-21 23:51:19,175 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 2270.9ms TimeCoverageRelationStatistics Valid=498, Invalid=2472, Unknown=0, NotChecked=0, Total=2970 [2021-05-21 23:51:19,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4785 states. [2021-05-21 23:51:19,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4785 to 4637. [2021-05-21 23:51:19,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4637 states, 4636 states have (on average 2.64732528041415) internal successors, (12273), 4636 states have internal predecessors, (12273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:19,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4637 states to 4637 states and 12273 transitions. [2021-05-21 23:51:19,223 INFO L78 Accepts]: Start accepts. Automaton has 4637 states and 12273 transitions. Word has length 119 [2021-05-21 23:51:19,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:51:19,224 INFO L482 AbstractCegarLoop]: Abstraction has 4637 states and 12273 transitions. [2021-05-21 23:51:19,224 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:19,224 INFO L276 IsEmpty]: Start isEmpty. Operand 4637 states and 12273 transitions. [2021-05-21 23:51:19,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:51:19,227 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:51:19,228 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:51:19,228 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-05-21 23:51:19,228 INFO L430 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:51:19,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:51:19,228 INFO L82 PathProgramCache]: Analyzing trace with hash 468471559, now seen corresponding path program 42 times [2021-05-21 23:51:19,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:51:19,228 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764538058] [2021-05-21 23:51:19,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:51:19,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:51:19,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:51:19,927 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:51:19,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764538058] [2021-05-21 23:51:19,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764538058] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:51:19,927 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:51:19,928 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:51:19,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355708000] [2021-05-21 23:51:19,928 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:51:19,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:51:19,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:51:19,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:51:19,928 INFO L87 Difference]: Start difference. First operand 4637 states and 12273 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:22,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:51:22,639 INFO L93 Difference]: Finished difference Result 5019 states and 13072 transitions. [2021-05-21 23:51:22,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-21 23:51:22,639 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:51:22,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:51:22,644 INFO L225 Difference]: With dead ends: 5019 [2021-05-21 23:51:22,644 INFO L226 Difference]: Without dead ends: 4781 [2021-05-21 23:51:22,644 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 2303.4ms TimeCoverageRelationStatistics Valid=482, Invalid=2488, Unknown=0, NotChecked=0, Total=2970 [2021-05-21 23:51:22,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4781 states. [2021-05-21 23:51:22,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4781 to 4633. [2021-05-21 23:51:22,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4633 states, 4632 states have (on average 2.6474525043177892) internal successors, (12263), 4632 states have internal predecessors, (12263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:22,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4633 states to 4633 states and 12263 transitions. [2021-05-21 23:51:22,706 INFO L78 Accepts]: Start accepts. Automaton has 4633 states and 12263 transitions. Word has length 119 [2021-05-21 23:51:22,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:51:22,706 INFO L482 AbstractCegarLoop]: Abstraction has 4633 states and 12263 transitions. [2021-05-21 23:51:22,706 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:22,707 INFO L276 IsEmpty]: Start isEmpty. Operand 4633 states and 12263 transitions. [2021-05-21 23:51:22,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:51:22,710 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:51:22,710 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:51:22,710 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-05-21 23:51:22,710 INFO L430 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:51:22,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:51:22,711 INFO L82 PathProgramCache]: Analyzing trace with hash -841152243, now seen corresponding path program 43 times [2021-05-21 23:51:22,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:51:22,711 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500977366] [2021-05-21 23:51:22,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:51:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:51:23,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:51:23,388 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:51:23,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500977366] [2021-05-21 23:51:23,389 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500977366] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:51:23,389 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:51:23,389 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:51:23,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547105228] [2021-05-21 23:51:23,389 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:51:23,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:51:23,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:51:23,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:51:23,389 INFO L87 Difference]: Start difference. First operand 4633 states and 12263 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:25,490 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-05-21 23:51:26,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:51:26,279 INFO L93 Difference]: Finished difference Result 5266 states and 13563 transitions. [2021-05-21 23:51:26,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-21 23:51:26,279 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:51:26,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:51:26,283 INFO L225 Difference]: With dead ends: 5266 [2021-05-21 23:51:26,283 INFO L226 Difference]: Without dead ends: 4666 [2021-05-21 23:51:26,283 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 2477.9ms TimeCoverageRelationStatistics Valid=546, Invalid=2760, Unknown=0, NotChecked=0, Total=3306 [2021-05-21 23:51:26,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4666 states. [2021-05-21 23:51:26,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4666 to 4274. [2021-05-21 23:51:26,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4274 states, 4273 states have (on average 2.658319681722443) internal successors, (11359), 4273 states have internal predecessors, (11359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:26,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4274 states to 4274 states and 11359 transitions. [2021-05-21 23:51:26,326 INFO L78 Accepts]: Start accepts. Automaton has 4274 states and 11359 transitions. Word has length 119 [2021-05-21 23:51:26,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:51:26,326 INFO L482 AbstractCegarLoop]: Abstraction has 4274 states and 11359 transitions. [2021-05-21 23:51:26,327 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:26,327 INFO L276 IsEmpty]: Start isEmpty. Operand 4274 states and 11359 transitions. [2021-05-21 23:51:26,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:51:26,330 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:51:26,330 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:51:26,330 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-05-21 23:51:26,330 INFO L430 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:51:26,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:51:26,330 INFO L82 PathProgramCache]: Analyzing trace with hash 672998753, now seen corresponding path program 44 times [2021-05-21 23:51:26,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:51:26,330 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66874368] [2021-05-21 23:51:26,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:51:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:51:26,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:51:26,576 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:51:26,576 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66874368] [2021-05-21 23:51:26,576 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66874368] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:51:26,576 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:51:26,576 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-05-21 23:51:26,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147360045] [2021-05-21 23:51:26,576 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-21 23:51:26,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:51:26,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-21 23:51:26,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:51:26,577 INFO L87 Difference]: Start difference. First operand 4274 states and 11359 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:27,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:51:27,051 INFO L93 Difference]: Finished difference Result 5995 states and 15628 transitions. [2021-05-21 23:51:27,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-21 23:51:27,052 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:51:27,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:51:27,057 INFO L225 Difference]: With dead ends: 5995 [2021-05-21 23:51:27,057 INFO L226 Difference]: Without dead ends: 5771 [2021-05-21 23:51:27,057 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 405.6ms TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2021-05-21 23:51:27,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5771 states. [2021-05-21 23:51:27,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5771 to 4164. [2021-05-21 23:51:27,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4164 states, 4163 states have (on average 2.6509728561133796) internal successors, (11036), 4163 states have internal predecessors, (11036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:27,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4164 states to 4164 states and 11036 transitions. [2021-05-21 23:51:27,106 INFO L78 Accepts]: Start accepts. Automaton has 4164 states and 11036 transitions. Word has length 119 [2021-05-21 23:51:27,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:51:27,107 INFO L482 AbstractCegarLoop]: Abstraction has 4164 states and 11036 transitions. [2021-05-21 23:51:27,107 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:27,107 INFO L276 IsEmpty]: Start isEmpty. Operand 4164 states and 11036 transitions. [2021-05-21 23:51:27,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:51:27,110 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:51:27,110 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:51:27,110 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-05-21 23:51:27,110 INFO L430 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:51:27,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:51:27,110 INFO L82 PathProgramCache]: Analyzing trace with hash 943376607, now seen corresponding path program 45 times [2021-05-21 23:51:27,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:51:27,110 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509971043] [2021-05-21 23:51:27,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:51:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:51:27,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:51:27,357 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:51:27,357 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509971043] [2021-05-21 23:51:27,357 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509971043] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:51:27,357 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:51:27,357 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-05-21 23:51:27,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914302010] [2021-05-21 23:51:27,357 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-21 23:51:27,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:51:27,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-21 23:51:27,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:51:27,358 INFO L87 Difference]: Start difference. First operand 4164 states and 11036 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:27,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:51:27,816 INFO L93 Difference]: Finished difference Result 4103 states and 10314 transitions. [2021-05-21 23:51:27,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-21 23:51:27,817 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:51:27,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:51:27,820 INFO L225 Difference]: With dead ends: 4103 [2021-05-21 23:51:27,820 INFO L226 Difference]: Without dead ends: 3991 [2021-05-21 23:51:27,820 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 387.5ms TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2021-05-21 23:51:27,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3991 states. [2021-05-21 23:51:27,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3991 to 3382. [2021-05-21 23:51:27,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3382 states, 3381 states have (on average 2.5732031943212066) internal successors, (8700), 3381 states have internal predecessors, (8700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:27,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3382 states to 3382 states and 8700 transitions. [2021-05-21 23:51:27,858 INFO L78 Accepts]: Start accepts. Automaton has 3382 states and 8700 transitions. Word has length 119 [2021-05-21 23:51:27,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:51:27,858 INFO L482 AbstractCegarLoop]: Abstraction has 3382 states and 8700 transitions. [2021-05-21 23:51:27,858 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:27,858 INFO L276 IsEmpty]: Start isEmpty. Operand 3382 states and 8700 transitions. [2021-05-21 23:51:27,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:51:27,861 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:51:27,861 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:51:27,861 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-05-21 23:51:27,861 INFO L430 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:51:27,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:51:27,861 INFO L82 PathProgramCache]: Analyzing trace with hash 371611779, now seen corresponding path program 46 times [2021-05-21 23:51:27,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:51:27,861 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807184988] [2021-05-21 23:51:27,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:51:27,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:51:28,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:51:28,438 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:51:28,438 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807184988] [2021-05-21 23:51:28,438 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807184988] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:51:28,438 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:51:28,438 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:51:28,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157389805] [2021-05-21 23:51:28,438 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:51:28,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:51:28,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:51:28,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:51:28,439 INFO L87 Difference]: Start difference. First operand 3382 states and 8700 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:29,897 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-05-21 23:51:30,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:51:30,773 INFO L93 Difference]: Finished difference Result 3615 states and 9136 transitions. [2021-05-21 23:51:30,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:51:30,773 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:51:30,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:51:30,777 INFO L225 Difference]: With dead ends: 3615 [2021-05-21 23:51:30,781 INFO L226 Difference]: Without dead ends: 3386 [2021-05-21 23:51:30,781 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 1973.1ms TimeCoverageRelationStatistics Valid=442, Invalid=2210, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:51:30,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2021-05-21 23:51:30,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3382. [2021-05-21 23:51:30,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3382 states, 3381 states have (on average 2.5708370304643595) internal successors, (8692), 3381 states have internal predecessors, (8692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:30,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3382 states to 3382 states and 8692 transitions. [2021-05-21 23:51:30,817 INFO L78 Accepts]: Start accepts. Automaton has 3382 states and 8692 transitions. Word has length 119 [2021-05-21 23:51:30,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:51:30,818 INFO L482 AbstractCegarLoop]: Abstraction has 3382 states and 8692 transitions. [2021-05-21 23:51:30,818 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:30,818 INFO L276 IsEmpty]: Start isEmpty. Operand 3382 states and 8692 transitions. [2021-05-21 23:51:30,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:51:30,820 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:51:30,821 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:51:30,821 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-05-21 23:51:30,821 INFO L430 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:51:30,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:51:30,821 INFO L82 PathProgramCache]: Analyzing trace with hash 367193639, now seen corresponding path program 47 times [2021-05-21 23:51:30,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:51:30,821 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328503322] [2021-05-21 23:51:30,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:51:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:51:31,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:51:31,425 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:51:31,425 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328503322] [2021-05-21 23:51:31,425 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328503322] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:51:31,425 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:51:31,425 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:51:31,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87655299] [2021-05-21 23:51:31,426 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:51:31,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:51:31,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:51:31,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:51:31,426 INFO L87 Difference]: Start difference. First operand 3382 states and 8692 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:33,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:51:33,869 INFO L93 Difference]: Finished difference Result 3823 states and 9688 transitions. [2021-05-21 23:51:33,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-21 23:51:33,869 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:51:33,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:51:33,873 INFO L225 Difference]: With dead ends: 3823 [2021-05-21 23:51:33,873 INFO L226 Difference]: Without dead ends: 3614 [2021-05-21 23:51:33,873 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 2033.6ms TimeCoverageRelationStatistics Valid=447, Invalid=2309, Unknown=0, NotChecked=0, Total=2756 [2021-05-21 23:51:33,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3614 states. [2021-05-21 23:51:33,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3614 to 3526. [2021-05-21 23:51:33,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3526 states, 3525 states have (on average 2.566808510638298) internal successors, (9048), 3525 states have internal predecessors, (9048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:33,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3526 states to 3526 states and 9048 transitions. [2021-05-21 23:51:33,912 INFO L78 Accepts]: Start accepts. Automaton has 3526 states and 9048 transitions. Word has length 119 [2021-05-21 23:51:33,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:51:33,912 INFO L482 AbstractCegarLoop]: Abstraction has 3526 states and 9048 transitions. [2021-05-21 23:51:33,912 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:33,912 INFO L276 IsEmpty]: Start isEmpty. Operand 3526 states and 9048 transitions. [2021-05-21 23:51:33,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:51:33,915 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:51:33,915 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:51:33,915 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-05-21 23:51:33,916 INFO L430 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:51:33,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:51:33,916 INFO L82 PathProgramCache]: Analyzing trace with hash -107512663, now seen corresponding path program 48 times [2021-05-21 23:51:33,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:51:33,916 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671932048] [2021-05-21 23:51:33,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:51:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:51:34,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:51:34,518 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:51:34,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671932048] [2021-05-21 23:51:34,519 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671932048] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:51:34,519 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:51:34,519 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:51:34,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117561527] [2021-05-21 23:51:34,519 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:51:34,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:51:34,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:51:34,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:51:34,519 INFO L87 Difference]: Start difference. First operand 3526 states and 9048 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:37,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:51:37,118 INFO L93 Difference]: Finished difference Result 4065 states and 10202 transitions. [2021-05-21 23:51:37,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-21 23:51:37,118 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:51:37,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:51:37,121 INFO L225 Difference]: With dead ends: 4065 [2021-05-21 23:51:37,121 INFO L226 Difference]: Without dead ends: 3076 [2021-05-21 23:51:37,122 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 2242.8ms TimeCoverageRelationStatistics Valid=514, Invalid=2678, Unknown=0, NotChecked=0, Total=3192 [2021-05-21 23:51:37,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3076 states. [2021-05-21 23:51:37,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3076 to 2974. [2021-05-21 23:51:37,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2974 states, 2973 states have (on average 2.572485704675412) internal successors, (7648), 2973 states have internal predecessors, (7648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:37,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 7648 transitions. [2021-05-21 23:51:37,155 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 7648 transitions. Word has length 119 [2021-05-21 23:51:37,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:51:37,155 INFO L482 AbstractCegarLoop]: Abstraction has 2974 states and 7648 transitions. [2021-05-21 23:51:37,155 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:37,155 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 7648 transitions. [2021-05-21 23:51:37,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:51:37,157 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:51:37,157 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:51:37,157 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-05-21 23:51:37,158 INFO L430 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:51:37,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:51:37,158 INFO L82 PathProgramCache]: Analyzing trace with hash -551577325, now seen corresponding path program 49 times [2021-05-21 23:51:37,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:51:37,158 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122084280] [2021-05-21 23:51:37,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:51:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:51:37,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:51:37,765 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:51:37,765 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122084280] [2021-05-21 23:51:37,765 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122084280] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:51:37,765 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:51:37,766 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:51:37,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167733037] [2021-05-21 23:51:37,766 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:51:37,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:51:37,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:51:37,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:51:37,766 INFO L87 Difference]: Start difference. First operand 2974 states and 7648 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:39,216 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-05-21 23:51:40,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:51:40,163 INFO L93 Difference]: Finished difference Result 3187 states and 8054 transitions. [2021-05-21 23:51:40,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-21 23:51:40,163 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:51:40,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:51:40,166 INFO L225 Difference]: With dead ends: 3187 [2021-05-21 23:51:40,166 INFO L226 Difference]: Without dead ends: 2854 [2021-05-21 23:51:40,166 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 2058.0ms TimeCoverageRelationStatistics Valid=459, Invalid=2297, Unknown=0, NotChecked=0, Total=2756 [2021-05-21 23:51:40,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2854 states. [2021-05-21 23:51:40,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2854 to 2854. [2021-05-21 23:51:40,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2854 states, 2853 states have (on average 2.5993690851735014) internal successors, (7416), 2853 states have internal predecessors, (7416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:40,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2854 states to 2854 states and 7416 transitions. [2021-05-21 23:51:40,194 INFO L78 Accepts]: Start accepts. Automaton has 2854 states and 7416 transitions. Word has length 119 [2021-05-21 23:51:40,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:51:40,194 INFO L482 AbstractCegarLoop]: Abstraction has 2854 states and 7416 transitions. [2021-05-21 23:51:40,194 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:40,194 INFO L276 IsEmpty]: Start isEmpty. Operand 2854 states and 7416 transitions. [2021-05-21 23:51:40,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:51:40,196 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:51:40,196 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:51:40,196 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-05-21 23:51:40,196 INFO L430 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:51:40,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:51:40,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1170997685, now seen corresponding path program 50 times [2021-05-21 23:51:40,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:51:40,196 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67421530] [2021-05-21 23:51:40,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:51:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:51:40,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:51:40,815 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:51:40,815 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67421530] [2021-05-21 23:51:40,815 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67421530] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:51:40,815 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:51:40,815 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:51:40,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592802683] [2021-05-21 23:51:40,815 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:51:40,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:51:40,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:51:40,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:51:40,816 INFO L87 Difference]: Start difference. First operand 2854 states and 7416 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:42,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:51:42,915 INFO L93 Difference]: Finished difference Result 3087 states and 7852 transitions. [2021-05-21 23:51:42,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:51:42,915 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:51:42,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:51:42,918 INFO L225 Difference]: With dead ends: 3087 [2021-05-21 23:51:42,918 INFO L226 Difference]: Without dead ends: 2830 [2021-05-21 23:51:42,918 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 1912.7ms TimeCoverageRelationStatistics Valid=445, Invalid=2207, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:51:42,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2830 states. [2021-05-21 23:51:42,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2830 to 2830. [2021-05-21 23:51:42,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2830 states, 2829 states have (on average 2.6044538706256626) internal successors, (7368), 2829 states have internal predecessors, (7368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:42,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2830 states to 2830 states and 7368 transitions. [2021-05-21 23:51:42,945 INFO L78 Accepts]: Start accepts. Automaton has 2830 states and 7368 transitions. Word has length 119 [2021-05-21 23:51:42,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:51:42,946 INFO L482 AbstractCegarLoop]: Abstraction has 2830 states and 7368 transitions. [2021-05-21 23:51:42,946 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:42,946 INFO L276 IsEmpty]: Start isEmpty. Operand 2830 states and 7368 transitions. [2021-05-21 23:51:42,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:51:42,948 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:51:42,948 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:51:42,948 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-05-21 23:51:42,948 INFO L430 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:51:42,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:51:42,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1017089893, now seen corresponding path program 51 times [2021-05-21 23:51:42,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:51:42,948 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949770514] [2021-05-21 23:51:42,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:51:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:51:43,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:51:43,534 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:51:43,534 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949770514] [2021-05-21 23:51:43,534 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949770514] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:51:43,534 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:51:43,534 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:51:43,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47333464] [2021-05-21 23:51:43,534 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:51:43,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:51:43,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:51:43,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:51:43,535 INFO L87 Difference]: Start difference. First operand 2830 states and 7368 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:44,872 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-05-21 23:51:45,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:51:45,687 INFO L93 Difference]: Finished difference Result 3023 states and 7747 transitions. [2021-05-21 23:51:45,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:51:45,688 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:51:45,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:51:45,690 INFO L225 Difference]: With dead ends: 3023 [2021-05-21 23:51:45,690 INFO L226 Difference]: Without dead ends: 2697 [2021-05-21 23:51:45,690 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 1868.8ms TimeCoverageRelationStatistics Valid=445, Invalid=2207, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:51:45,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2021-05-21 23:51:45,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 2657. [2021-05-21 23:51:45,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2657 states, 2656 states have (on average 2.6438253012048194) internal successors, (7022), 2656 states have internal predecessors, (7022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:45,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2657 states to 2657 states and 7022 transitions. [2021-05-21 23:51:45,715 INFO L78 Accepts]: Start accepts. Automaton has 2657 states and 7022 transitions. Word has length 119 [2021-05-21 23:51:45,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:51:45,715 INFO L482 AbstractCegarLoop]: Abstraction has 2657 states and 7022 transitions. [2021-05-21 23:51:45,715 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:45,715 INFO L276 IsEmpty]: Start isEmpty. Operand 2657 states and 7022 transitions. [2021-05-21 23:51:45,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:51:45,717 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:51:45,717 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:51:45,717 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-05-21 23:51:45,717 INFO L430 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:51:45,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:51:45,717 INFO L82 PathProgramCache]: Analyzing trace with hash 625952829, now seen corresponding path program 52 times [2021-05-21 23:51:45,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:51:45,718 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314773239] [2021-05-21 23:51:45,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:51:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:51:45,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:51:45,912 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:51:45,912 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314773239] [2021-05-21 23:51:45,912 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314773239] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:51:45,912 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:51:45,912 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-05-21 23:51:45,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878049904] [2021-05-21 23:51:45,913 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 23:51:45,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:51:45,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 23:51:45,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:51:45,913 INFO L87 Difference]: Start difference. First operand 2657 states and 7022 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:46,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:51:46,186 INFO L93 Difference]: Finished difference Result 5076 states and 13227 transitions. [2021-05-21 23:51:46,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 23:51:46,186 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:51:46,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:51:46,191 INFO L225 Difference]: With dead ends: 5076 [2021-05-21 23:51:46,191 INFO L226 Difference]: Without dead ends: 5076 [2021-05-21 23:51:46,191 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 262.5ms TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-05-21 23:51:46,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5076 states. [2021-05-21 23:51:46,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5076 to 2829. [2021-05-21 23:51:46,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2829 states, 2828 states have (on average 2.639321074964639) internal successors, (7464), 2828 states have internal predecessors, (7464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:46,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2829 states to 2829 states and 7464 transitions. [2021-05-21 23:51:46,229 INFO L78 Accepts]: Start accepts. Automaton has 2829 states and 7464 transitions. Word has length 119 [2021-05-21 23:51:46,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:51:46,229 INFO L482 AbstractCegarLoop]: Abstraction has 2829 states and 7464 transitions. [2021-05-21 23:51:46,229 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:46,229 INFO L276 IsEmpty]: Start isEmpty. Operand 2829 states and 7464 transitions. [2021-05-21 23:51:46,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:51:46,231 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:51:46,231 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:51:46,232 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-05-21 23:51:46,232 INFO L430 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:51:46,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:51:46,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1542907711, now seen corresponding path program 53 times [2021-05-21 23:51:46,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:51:46,232 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126239959] [2021-05-21 23:51:46,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:51:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:51:46,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:51:46,860 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:51:46,860 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126239959] [2021-05-21 23:51:46,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126239959] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:51:46,860 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:51:46,860 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:51:46,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021399250] [2021-05-21 23:51:46,860 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:51:46,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:51:46,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:51:46,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:51:46,861 INFO L87 Difference]: Start difference. First operand 2829 states and 7464 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:47,811 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2021-05-21 23:51:48,043 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2021-05-21 23:51:49,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:51:49,980 INFO L93 Difference]: Finished difference Result 4703 states and 12288 transitions. [2021-05-21 23:51:49,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:51:49,981 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:51:49,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:51:49,985 INFO L225 Difference]: With dead ends: 4703 [2021-05-21 23:51:49,985 INFO L226 Difference]: Without dead ends: 4508 [2021-05-21 23:51:49,985 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 2557.6ms TimeCoverageRelationStatistics Valid=571, Invalid=2969, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:51:49,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4508 states. [2021-05-21 23:51:50,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4508 to 3345. [2021-05-21 23:51:50,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3345 states, 3344 states have (on average 2.6632775119617227) internal successors, (8906), 3344 states have internal predecessors, (8906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:50,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3345 states to 3345 states and 8906 transitions. [2021-05-21 23:51:50,025 INFO L78 Accepts]: Start accepts. Automaton has 3345 states and 8906 transitions. Word has length 119 [2021-05-21 23:51:50,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:51:50,025 INFO L482 AbstractCegarLoop]: Abstraction has 3345 states and 8906 transitions. [2021-05-21 23:51:50,025 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:50,025 INFO L276 IsEmpty]: Start isEmpty. Operand 3345 states and 8906 transitions. [2021-05-21 23:51:50,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:51:50,028 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:51:50,028 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:51:50,028 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-05-21 23:51:50,028 INFO L430 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:51:50,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:51:50,028 INFO L82 PathProgramCache]: Analyzing trace with hash -296789471, now seen corresponding path program 2 times [2021-05-21 23:51:50,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:51:50,028 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493402143] [2021-05-21 23:51:50,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:51:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:51:50,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:51:50,503 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:51:50,504 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493402143] [2021-05-21 23:51:50,504 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493402143] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:51:50,504 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:51:50,504 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-05-21 23:51:50,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559228220] [2021-05-21 23:51:50,504 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-05-21 23:51:50,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:51:50,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-05-21 23:51:50,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2021-05-21 23:51:50,504 INFO L87 Difference]: Start difference. First operand 3345 states and 8906 transitions. Second operand has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:52,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:51:52,256 INFO L93 Difference]: Finished difference Result 5894 states and 15645 transitions. [2021-05-21 23:51:52,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-21 23:51:52,257 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:51:52,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:51:52,262 INFO L225 Difference]: With dead ends: 5894 [2021-05-21 23:51:52,262 INFO L226 Difference]: Without dead ends: 5829 [2021-05-21 23:51:52,262 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 1315.9ms TimeCoverageRelationStatistics Valid=576, Invalid=1974, Unknown=0, NotChecked=0, Total=2550 [2021-05-21 23:51:52,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5829 states. [2021-05-21 23:51:52,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5829 to 5736. [2021-05-21 23:51:52,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5736 states, 5735 states have (on average 2.680034873583261) internal successors, (15370), 5735 states have internal predecessors, (15370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:52,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5736 states to 5736 states and 15370 transitions. [2021-05-21 23:51:52,324 INFO L78 Accepts]: Start accepts. Automaton has 5736 states and 15370 transitions. Word has length 119 [2021-05-21 23:51:52,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:51:52,324 INFO L482 AbstractCegarLoop]: Abstraction has 5736 states and 15370 transitions. [2021-05-21 23:51:52,325 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:52,325 INFO L276 IsEmpty]: Start isEmpty. Operand 5736 states and 15370 transitions. [2021-05-21 23:51:52,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:51:52,329 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:51:52,329 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:51:52,329 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-05-21 23:51:52,329 INFO L430 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:51:52,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:51:52,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1945047363, now seen corresponding path program 54 times [2021-05-21 23:51:52,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:51:52,330 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359724437] [2021-05-21 23:51:52,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:51:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:51:52,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:51:52,931 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:51:52,931 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359724437] [2021-05-21 23:51:52,931 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359724437] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:51:52,931 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:51:52,931 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:51:52,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520406882] [2021-05-21 23:51:52,931 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:51:52,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:51:52,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:51:52,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:51:52,932 INFO L87 Difference]: Start difference. First operand 5736 states and 15370 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:54,068 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-05-21 23:51:55,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:51:55,845 INFO L93 Difference]: Finished difference Result 8528 states and 22532 transitions. [2021-05-21 23:51:55,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:51:55,846 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:51:55,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:51:55,853 INFO L225 Difference]: With dead ends: 8528 [2021-05-21 23:51:55,853 INFO L226 Difference]: Without dead ends: 7762 [2021-05-21 23:51:55,853 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 2477.4ms TimeCoverageRelationStatistics Valid=614, Invalid=2926, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:51:55,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7762 states. [2021-05-21 23:51:55,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7762 to 5856. [2021-05-21 23:51:55,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5856 states, 5855 states have (on average 2.66199829205807) internal successors, (15586), 5855 states have internal predecessors, (15586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:55,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5856 states to 5856 states and 15586 transitions. [2021-05-21 23:51:55,927 INFO L78 Accepts]: Start accepts. Automaton has 5856 states and 15586 transitions. Word has length 119 [2021-05-21 23:51:55,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:51:55,928 INFO L482 AbstractCegarLoop]: Abstraction has 5856 states and 15586 transitions. [2021-05-21 23:51:55,928 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:55,928 INFO L276 IsEmpty]: Start isEmpty. Operand 5856 states and 15586 transitions. [2021-05-21 23:51:55,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:51:55,932 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:51:55,932 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:51:55,932 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-05-21 23:51:55,933 INFO L430 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:51:55,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:51:55,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1141494569, now seen corresponding path program 55 times [2021-05-21 23:51:55,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:51:55,933 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533761087] [2021-05-21 23:51:55,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:51:55,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:51:56,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:51:56,577 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:51:56,577 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533761087] [2021-05-21 23:51:56,577 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533761087] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:51:56,577 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:51:56,577 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:51:56,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092576232] [2021-05-21 23:51:56,577 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:51:56,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:51:56,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:51:56,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:51:56,578 INFO L87 Difference]: Start difference. First operand 5856 states and 15586 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:57,500 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2021-05-21 23:51:59,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:51:59,673 INFO L93 Difference]: Finished difference Result 7953 states and 20909 transitions. [2021-05-21 23:51:59,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-21 23:51:59,673 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:51:59,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:51:59,680 INFO L225 Difference]: With dead ends: 7953 [2021-05-21 23:51:59,680 INFO L226 Difference]: Without dead ends: 7114 [2021-05-21 23:51:59,680 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 2735.5ms TimeCoverageRelationStatistics Valid=635, Invalid=3147, Unknown=0, NotChecked=0, Total=3782 [2021-05-21 23:51:59,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7114 states. [2021-05-21 23:51:59,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7114 to 5208. [2021-05-21 23:51:59,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5208 states, 5207 states have (on average 2.6606491261763012) internal successors, (13854), 5207 states have internal predecessors, (13854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:59,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5208 states to 5208 states and 13854 transitions. [2021-05-21 23:51:59,747 INFO L78 Accepts]: Start accepts. Automaton has 5208 states and 13854 transitions. Word has length 119 [2021-05-21 23:51:59,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:51:59,747 INFO L482 AbstractCegarLoop]: Abstraction has 5208 states and 13854 transitions. [2021-05-21 23:51:59,747 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:51:59,747 INFO L276 IsEmpty]: Start isEmpty. Operand 5208 states and 13854 transitions. [2021-05-21 23:51:59,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:51:59,751 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:51:59,751 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:51:59,751 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-05-21 23:51:59,751 INFO L430 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:51:59,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:51:59,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1550242815, now seen corresponding path program 56 times [2021-05-21 23:51:59,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:51:59,752 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633707363] [2021-05-21 23:51:59,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:51:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:52:00,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:52:00,360 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:52:00,360 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633707363] [2021-05-21 23:52:00,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633707363] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:52:00,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:52:00,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:52:00,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084733901] [2021-05-21 23:52:00,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:52:00,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:52:00,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:52:00,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:52:00,361 INFO L87 Difference]: Start difference. First operand 5208 states and 13854 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:01,483 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2021-05-21 23:52:01,854 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-05-21 23:52:03,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:52:03,275 INFO L93 Difference]: Finished difference Result 6608 states and 17330 transitions. [2021-05-21 23:52:03,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:52:03,276 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:52:03,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:52:03,282 INFO L225 Difference]: With dead ends: 6608 [2021-05-21 23:52:03,282 INFO L226 Difference]: Without dead ends: 6281 [2021-05-21 23:52:03,283 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 2522.5ms TimeCoverageRelationStatistics Valid=624, Invalid=2916, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:52:03,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6281 states. [2021-05-21 23:52:03,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6281 to 5200. [2021-05-21 23:52:03,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5200 states, 5199 states have (on average 2.660126947489902) internal successors, (13830), 5199 states have internal predecessors, (13830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:03,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5200 states to 5200 states and 13830 transitions. [2021-05-21 23:52:03,347 INFO L78 Accepts]: Start accepts. Automaton has 5200 states and 13830 transitions. Word has length 119 [2021-05-21 23:52:03,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:52:03,347 INFO L482 AbstractCegarLoop]: Abstraction has 5200 states and 13830 transitions. [2021-05-21 23:52:03,347 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:03,347 INFO L276 IsEmpty]: Start isEmpty. Operand 5200 states and 13830 transitions. [2021-05-21 23:52:03,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:52:03,351 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:52:03,352 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:52:03,352 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-05-21 23:52:03,352 INFO L430 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:52:03,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:52:03,352 INFO L82 PathProgramCache]: Analyzing trace with hash -2040409167, now seen corresponding path program 57 times [2021-05-21 23:52:03,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:52:03,352 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294855406] [2021-05-21 23:52:03,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:52:03,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:52:03,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:52:03,972 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:52:03,972 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294855406] [2021-05-21 23:52:03,972 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294855406] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:52:03,973 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:52:03,973 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:52:03,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725678944] [2021-05-21 23:52:03,973 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:52:03,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:52:03,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:52:03,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:52:03,973 INFO L87 Difference]: Start difference. First operand 5200 states and 13830 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:05,203 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-05-21 23:52:05,385 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-05-21 23:52:06,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:52:06,779 INFO L93 Difference]: Finished difference Result 6354 states and 16612 transitions. [2021-05-21 23:52:06,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-21 23:52:06,779 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:52:06,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:52:06,785 INFO L225 Difference]: With dead ends: 6354 [2021-05-21 23:52:06,785 INFO L226 Difference]: Without dead ends: 5967 [2021-05-21 23:52:06,786 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2443.4ms TimeCoverageRelationStatistics Valid=597, Invalid=2825, Unknown=0, NotChecked=0, Total=3422 [2021-05-21 23:52:06,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5967 states. [2021-05-21 23:52:06,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5967 to 5192. [2021-05-21 23:52:06,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5192 states, 5191 states have (on average 2.6580620304372955) internal successors, (13798), 5191 states have internal predecessors, (13798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:06,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 5192 states and 13798 transitions. [2021-05-21 23:52:06,851 INFO L78 Accepts]: Start accepts. Automaton has 5192 states and 13798 transitions. Word has length 119 [2021-05-21 23:52:06,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:52:06,851 INFO L482 AbstractCegarLoop]: Abstraction has 5192 states and 13798 transitions. [2021-05-21 23:52:06,851 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:06,851 INFO L276 IsEmpty]: Start isEmpty. Operand 5192 states and 13798 transitions. [2021-05-21 23:52:06,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:52:06,856 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:52:06,856 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:52:06,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-05-21 23:52:06,856 INFO L430 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:52:06,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:52:06,856 INFO L82 PathProgramCache]: Analyzing trace with hash -873473791, now seen corresponding path program 58 times [2021-05-21 23:52:06,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:52:06,857 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369069940] [2021-05-21 23:52:06,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:52:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:52:07,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:52:07,500 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:52:07,500 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369069940] [2021-05-21 23:52:07,500 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369069940] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:52:07,500 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:52:07,500 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:52:07,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438164273] [2021-05-21 23:52:07,500 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:52:07,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:52:07,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:52:07,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:52:07,501 INFO L87 Difference]: Start difference. First operand 5192 states and 13798 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:10,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:52:10,169 INFO L93 Difference]: Finished difference Result 6651 states and 17539 transitions. [2021-05-21 23:52:10,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-21 23:52:10,170 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:52:10,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:52:10,176 INFO L225 Difference]: With dead ends: 6651 [2021-05-21 23:52:10,176 INFO L226 Difference]: Without dead ends: 6442 [2021-05-21 23:52:10,177 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 2199.0ms TimeCoverageRelationStatistics Valid=483, Invalid=2487, Unknown=0, NotChecked=0, Total=2970 [2021-05-21 23:52:10,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6442 states. [2021-05-21 23:52:10,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6442 to 5528. [2021-05-21 23:52:10,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5528 states, 5527 states have (on average 2.6477293287497736) internal successors, (14634), 5527 states have internal predecessors, (14634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:10,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5528 states to 5528 states and 14634 transitions. [2021-05-21 23:52:10,251 INFO L78 Accepts]: Start accepts. Automaton has 5528 states and 14634 transitions. Word has length 119 [2021-05-21 23:52:10,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:52:10,251 INFO L482 AbstractCegarLoop]: Abstraction has 5528 states and 14634 transitions. [2021-05-21 23:52:10,251 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:10,251 INFO L276 IsEmpty]: Start isEmpty. Operand 5528 states and 14634 transitions. [2021-05-21 23:52:10,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:52:10,256 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:52:10,256 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:52:10,256 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-05-21 23:52:10,256 INFO L430 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:52:10,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:52:10,256 INFO L82 PathProgramCache]: Analyzing trace with hash -471334139, now seen corresponding path program 59 times [2021-05-21 23:52:10,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:52:10,257 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216710119] [2021-05-21 23:52:10,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:52:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:52:10,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:52:10,848 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:52:10,848 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216710119] [2021-05-21 23:52:10,848 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216710119] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:52:10,849 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:52:10,849 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:52:10,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647674807] [2021-05-21 23:52:10,849 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:52:10,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:52:10,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:52:10,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:52:10,849 INFO L87 Difference]: Start difference. First operand 5528 states and 14634 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:13,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:52:13,405 INFO L93 Difference]: Finished difference Result 6998 states and 18357 transitions. [2021-05-21 23:52:13,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-21 23:52:13,405 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:52:13,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:52:13,411 INFO L225 Difference]: With dead ends: 6998 [2021-05-21 23:52:13,411 INFO L226 Difference]: Without dead ends: 6522 [2021-05-21 23:52:13,411 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 2208.1ms TimeCoverageRelationStatistics Valid=514, Invalid=2566, Unknown=0, NotChecked=0, Total=3080 [2021-05-21 23:52:13,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6522 states. [2021-05-21 23:52:13,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6522 to 5600. [2021-05-21 23:52:13,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5600 states, 5599 states have (on average 2.635113413109484) internal successors, (14754), 5599 states have internal predecessors, (14754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:13,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5600 states to 5600 states and 14754 transitions. [2021-05-21 23:52:13,477 INFO L78 Accepts]: Start accepts. Automaton has 5600 states and 14754 transitions. Word has length 119 [2021-05-21 23:52:13,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:52:13,477 INFO L482 AbstractCegarLoop]: Abstraction has 5600 states and 14754 transitions. [2021-05-21 23:52:13,478 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:13,478 INFO L276 IsEmpty]: Start isEmpty. Operand 5600 states and 14754 transitions. [2021-05-21 23:52:13,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:52:13,482 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:52:13,482 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:52:13,483 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-05-21 23:52:13,483 INFO L430 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:52:13,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:52:13,483 INFO L82 PathProgramCache]: Analyzing trace with hash 737091225, now seen corresponding path program 60 times [2021-05-21 23:52:13,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:52:13,483 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142472831] [2021-05-21 23:52:13,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:52:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:52:14,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:52:14,119 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:52:14,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142472831] [2021-05-21 23:52:14,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142472831] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:52:14,119 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:52:14,119 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:52:14,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140880955] [2021-05-21 23:52:14,119 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:52:14,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:52:14,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:52:14,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:52:14,120 INFO L87 Difference]: Start difference. First operand 5600 states and 14754 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:16,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:52:16,836 INFO L93 Difference]: Finished difference Result 6655 states and 17434 transitions. [2021-05-21 23:52:16,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-21 23:52:16,837 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:52:16,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:52:16,841 INFO L225 Difference]: With dead ends: 6655 [2021-05-21 23:52:16,841 INFO L226 Difference]: Without dead ends: 6114 [2021-05-21 23:52:16,841 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 2289.5ms TimeCoverageRelationStatistics Valid=516, Invalid=2676, Unknown=0, NotChecked=0, Total=3192 [2021-05-21 23:52:16,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6114 states. [2021-05-21 23:52:16,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6114 to 5192. [2021-05-21 23:52:16,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5192 states, 5191 states have (on average 2.6534386438065884) internal successors, (13774), 5191 states have internal predecessors, (13774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:16,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 5192 states and 13774 transitions. [2021-05-21 23:52:16,898 INFO L78 Accepts]: Start accepts. Automaton has 5192 states and 13774 transitions. Word has length 119 [2021-05-21 23:52:16,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:52:16,899 INFO L482 AbstractCegarLoop]: Abstraction has 5192 states and 13774 transitions. [2021-05-21 23:52:16,899 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:16,899 INFO L276 IsEmpty]: Start isEmpty. Operand 5192 states and 13774 transitions. [2021-05-21 23:52:16,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:52:16,903 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:52:16,903 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:52:16,903 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-05-21 23:52:16,903 INFO L430 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:52:16,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:52:16,904 INFO L82 PathProgramCache]: Analyzing trace with hash -866138687, now seen corresponding path program 61 times [2021-05-21 23:52:16,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:52:16,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161827429] [2021-05-21 23:52:16,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:52:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:52:17,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:52:17,516 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:52:17,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161827429] [2021-05-21 23:52:17,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161827429] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:52:17,516 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:52:17,516 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:52:17,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730382083] [2021-05-21 23:52:17,517 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:52:17,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:52:17,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:52:17,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:52:17,517 INFO L87 Difference]: Start difference. First operand 5192 states and 13774 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:19,107 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-05-21 23:52:20,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:52:20,113 INFO L93 Difference]: Finished difference Result 6161 states and 16272 transitions. [2021-05-21 23:52:20,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-21 23:52:20,114 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:52:20,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:52:20,118 INFO L225 Difference]: With dead ends: 6161 [2021-05-21 23:52:20,118 INFO L226 Difference]: Without dead ends: 5924 [2021-05-21 23:52:20,118 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 2228.7ms TimeCoverageRelationStatistics Valid=499, Invalid=2471, Unknown=0, NotChecked=0, Total=2970 [2021-05-21 23:52:20,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5924 states. [2021-05-21 23:52:20,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5924 to 5168. [2021-05-21 23:52:20,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5168 states, 5167 states have (on average 2.6564737758854267) internal successors, (13726), 5167 states have internal predecessors, (13726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:20,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 5168 states and 13726 transitions. [2021-05-21 23:52:20,172 INFO L78 Accepts]: Start accepts. Automaton has 5168 states and 13726 transitions. Word has length 119 [2021-05-21 23:52:20,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:52:20,172 INFO L482 AbstractCegarLoop]: Abstraction has 5168 states and 13726 transitions. [2021-05-21 23:52:20,173 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:20,173 INFO L276 IsEmpty]: Start isEmpty. Operand 5168 states and 13726 transitions. [2021-05-21 23:52:20,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:52:20,177 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:52:20,177 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:52:20,177 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-05-21 23:52:20,177 INFO L430 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:52:20,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:52:20,177 INFO L82 PathProgramCache]: Analyzing trace with hash -768560355, now seen corresponding path program 62 times [2021-05-21 23:52:20,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:52:20,177 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974185231] [2021-05-21 23:52:20,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:52:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:52:20,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:52:20,769 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:52:20,769 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974185231] [2021-05-21 23:52:20,769 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974185231] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:52:20,769 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:52:20,769 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:52:20,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997493809] [2021-05-21 23:52:20,770 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:52:20,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:52:20,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:52:20,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:52:20,770 INFO L87 Difference]: Start difference. First operand 5168 states and 13726 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:23,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:52:23,427 INFO L93 Difference]: Finished difference Result 7746 states and 20382 transitions. [2021-05-21 23:52:23,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-21 23:52:23,427 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:52:23,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:52:23,433 INFO L225 Difference]: With dead ends: 7746 [2021-05-21 23:52:23,433 INFO L226 Difference]: Without dead ends: 7537 [2021-05-21 23:52:23,433 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 2147.9ms TimeCoverageRelationStatistics Valid=473, Invalid=2497, Unknown=0, NotChecked=0, Total=2970 [2021-05-21 23:52:23,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7537 states. [2021-05-21 23:52:23,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7537 to 5492. [2021-05-21 23:52:23,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5492 states, 5491 states have (on average 2.6519759606629028) internal successors, (14562), 5491 states have internal predecessors, (14562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:23,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5492 states to 5492 states and 14562 transitions. [2021-05-21 23:52:23,499 INFO L78 Accepts]: Start accepts. Automaton has 5492 states and 14562 transitions. Word has length 119 [2021-05-21 23:52:23,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:52:23,499 INFO L482 AbstractCegarLoop]: Abstraction has 5492 states and 14562 transitions. [2021-05-21 23:52:23,499 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:23,499 INFO L276 IsEmpty]: Start isEmpty. Operand 5492 states and 14562 transitions. [2021-05-21 23:52:23,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:52:23,503 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:52:23,503 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:52:23,504 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-05-21 23:52:23,504 INFO L430 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:52:23,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:52:23,504 INFO L82 PathProgramCache]: Analyzing trace with hash -366420703, now seen corresponding path program 63 times [2021-05-21 23:52:23,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:52:23,504 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874797582] [2021-05-21 23:52:23,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:52:23,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:52:24,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:52:24,100 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:52:24,100 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874797582] [2021-05-21 23:52:24,100 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874797582] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:52:24,100 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:52:24,100 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:52:24,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194094064] [2021-05-21 23:52:24,100 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:52:24,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:52:24,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:52:24,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:52:24,101 INFO L87 Difference]: Start difference. First operand 5492 states and 14562 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:26,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:52:26,761 INFO L93 Difference]: Finished difference Result 8093 states and 21200 transitions. [2021-05-21 23:52:26,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-21 23:52:26,761 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:52:26,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:52:26,768 INFO L225 Difference]: With dead ends: 8093 [2021-05-21 23:52:26,768 INFO L226 Difference]: Without dead ends: 7617 [2021-05-21 23:52:26,768 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 2156.8ms TimeCoverageRelationStatistics Valid=501, Invalid=2579, Unknown=0, NotChecked=0, Total=3080 [2021-05-21 23:52:26,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7617 states. [2021-05-21 23:52:26,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7617 to 5564. [2021-05-21 23:52:26,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5564 states, 5563 states have (on average 2.63922344058961) internal successors, (14682), 5563 states have internal predecessors, (14682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:26,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5564 states to 5564 states and 14682 transitions. [2021-05-21 23:52:26,837 INFO L78 Accepts]: Start accepts. Automaton has 5564 states and 14682 transitions. Word has length 119 [2021-05-21 23:52:26,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:52:26,837 INFO L482 AbstractCegarLoop]: Abstraction has 5564 states and 14682 transitions. [2021-05-21 23:52:26,838 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:26,838 INFO L276 IsEmpty]: Start isEmpty. Operand 5564 states and 14682 transitions. [2021-05-21 23:52:26,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:52:26,842 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:52:26,842 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:52:26,842 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-05-21 23:52:26,842 INFO L430 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:52:26,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:52:26,842 INFO L82 PathProgramCache]: Analyzing trace with hash 842004661, now seen corresponding path program 64 times [2021-05-21 23:52:26,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:52:26,843 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773521710] [2021-05-21 23:52:26,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:52:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:52:27,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:52:27,471 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:52:27,471 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773521710] [2021-05-21 23:52:27,471 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773521710] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:52:27,471 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:52:27,471 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:52:27,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483677006] [2021-05-21 23:52:27,471 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:52:27,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:52:27,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:52:27,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:52:27,471 INFO L87 Difference]: Start difference. First operand 5564 states and 14682 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:30,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:52:30,255 INFO L93 Difference]: Finished difference Result 7750 states and 20277 transitions. [2021-05-21 23:52:30,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-21 23:52:30,255 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:52:30,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:52:30,261 INFO L225 Difference]: With dead ends: 7750 [2021-05-21 23:52:30,262 INFO L226 Difference]: Without dead ends: 7209 [2021-05-21 23:52:30,262 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 2333.3ms TimeCoverageRelationStatistics Valid=505, Invalid=2687, Unknown=0, NotChecked=0, Total=3192 [2021-05-21 23:52:30,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7209 states. [2021-05-21 23:52:30,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7209 to 5156. [2021-05-21 23:52:30,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5156 states, 5155 states have (on average 2.639379243452958) internal successors, (13606), 5155 states have internal predecessors, (13606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:30,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5156 states to 5156 states and 13606 transitions. [2021-05-21 23:52:30,326 INFO L78 Accepts]: Start accepts. Automaton has 5156 states and 13606 transitions. Word has length 119 [2021-05-21 23:52:30,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:52:30,327 INFO L482 AbstractCegarLoop]: Abstraction has 5156 states and 13606 transitions. [2021-05-21 23:52:30,327 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:30,327 INFO L276 IsEmpty]: Start isEmpty. Operand 5156 states and 13606 transitions. [2021-05-21 23:52:30,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:52:30,331 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:52:30,331 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:52:30,331 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-05-21 23:52:30,331 INFO L430 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:52:30,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:52:30,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1234319467, now seen corresponding path program 65 times [2021-05-21 23:52:30,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:52:30,332 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138707889] [2021-05-21 23:52:30,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:52:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:52:30,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:52:30,914 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:52:30,914 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138707889] [2021-05-21 23:52:30,914 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138707889] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:52:30,915 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:52:30,915 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:52:30,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685160149] [2021-05-21 23:52:30,915 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:52:30,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:52:30,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:52:30,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:52:30,915 INFO L87 Difference]: Start difference. First operand 5156 states and 13606 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:33,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:52:33,684 INFO L93 Difference]: Finished difference Result 7566 states and 19673 transitions. [2021-05-21 23:52:33,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-21 23:52:33,685 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:52:33,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:52:33,691 INFO L225 Difference]: With dead ends: 7566 [2021-05-21 23:52:33,692 INFO L226 Difference]: Without dead ends: 7212 [2021-05-21 23:52:33,692 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 2265.3ms TimeCoverageRelationStatistics Valid=516, Invalid=2790, Unknown=0, NotChecked=0, Total=3306 [2021-05-21 23:52:33,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7212 states. [2021-05-21 23:52:33,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7212 to 5036. [2021-05-21 23:52:33,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5036 states, 5035 states have (on average 2.654617676266137) internal successors, (13366), 5035 states have internal predecessors, (13366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:33,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5036 states to 5036 states and 13366 transitions. [2021-05-21 23:52:33,758 INFO L78 Accepts]: Start accepts. Automaton has 5036 states and 13366 transitions. Word has length 119 [2021-05-21 23:52:33,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:52:33,758 INFO L482 AbstractCegarLoop]: Abstraction has 5036 states and 13366 transitions. [2021-05-21 23:52:33,758 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:33,758 INFO L276 IsEmpty]: Start isEmpty. Operand 5036 states and 13366 transitions. [2021-05-21 23:52:33,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:52:33,762 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:52:33,762 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:52:33,762 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-05-21 23:52:33,762 INFO L430 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:52:33,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:52:33,762 INFO L82 PathProgramCache]: Analyzing trace with hash -2115126477, now seen corresponding path program 66 times [2021-05-21 23:52:33,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:52:33,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80996454] [2021-05-21 23:52:33,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:52:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:52:34,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:52:34,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:52:34,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80996454] [2021-05-21 23:52:34,365 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80996454] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:52:34,365 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:52:34,365 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:52:34,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262434448] [2021-05-21 23:52:34,365 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:52:34,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:52:34,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:52:34,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:52:34,366 INFO L87 Difference]: Start difference. First operand 5036 states and 13366 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:35,376 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-05-21 23:52:35,879 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-05-21 23:52:36,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:52:36,957 INFO L93 Difference]: Finished difference Result 6111 states and 16108 transitions. [2021-05-21 23:52:36,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-21 23:52:36,958 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:52:36,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:52:36,963 INFO L225 Difference]: With dead ends: 6111 [2021-05-21 23:52:36,964 INFO L226 Difference]: Without dead ends: 5898 [2021-05-21 23:52:36,964 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 2205.3ms TimeCoverageRelationStatistics Valid=499, Invalid=2471, Unknown=0, NotChecked=0, Total=2970 [2021-05-21 23:52:36,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5898 states. [2021-05-21 23:52:37,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5898 to 5040. [2021-05-21 23:52:37,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5040 states, 5039 states have (on average 2.653701131176821) internal successors, (13372), 5039 states have internal predecessors, (13372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:37,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5040 states to 5040 states and 13372 transitions. [2021-05-21 23:52:37,023 INFO L78 Accepts]: Start accepts. Automaton has 5040 states and 13372 transitions. Word has length 119 [2021-05-21 23:52:37,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:52:37,023 INFO L482 AbstractCegarLoop]: Abstraction has 5040 states and 13372 transitions. [2021-05-21 23:52:37,023 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:37,023 INFO L276 IsEmpty]: Start isEmpty. Operand 5040 states and 13372 transitions. [2021-05-21 23:52:37,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:52:37,027 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:52:37,027 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:52:37,027 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-05-21 23:52:37,027 INFO L430 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:52:37,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:52:37,028 INFO L82 PathProgramCache]: Analyzing trace with hash 35949327, now seen corresponding path program 67 times [2021-05-21 23:52:37,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:52:37,028 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783057507] [2021-05-21 23:52:37,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:52:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:52:37,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:52:37,711 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:52:37,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783057507] [2021-05-21 23:52:37,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783057507] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:52:37,711 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:52:37,711 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:52:37,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19265997] [2021-05-21 23:52:37,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:52:37,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:52:37,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:52:37,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:52:37,712 INFO L87 Difference]: Start difference. First operand 5040 states and 13372 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:40,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:52:40,396 INFO L93 Difference]: Finished difference Result 6417 states and 16748 transitions. [2021-05-21 23:52:40,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-21 23:52:40,397 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:52:40,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:52:40,403 INFO L225 Difference]: With dead ends: 6417 [2021-05-21 23:52:40,403 INFO L226 Difference]: Without dead ends: 6155 [2021-05-21 23:52:40,403 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 2384.6ms TimeCoverageRelationStatistics Valid=555, Invalid=2751, Unknown=0, NotChecked=0, Total=3306 [2021-05-21 23:52:40,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6155 states. [2021-05-21 23:52:40,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6155 to 5012. [2021-05-21 23:52:40,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5012 states, 5011 states have (on average 2.6577529435242466) internal successors, (13318), 5011 states have internal predecessors, (13318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:40,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5012 states to 5012 states and 13318 transitions. [2021-05-21 23:52:40,463 INFO L78 Accepts]: Start accepts. Automaton has 5012 states and 13318 transitions. Word has length 119 [2021-05-21 23:52:40,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:52:40,463 INFO L482 AbstractCegarLoop]: Abstraction has 5012 states and 13318 transitions. [2021-05-21 23:52:40,463 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:40,463 INFO L276 IsEmpty]: Start isEmpty. Operand 5012 states and 13318 transitions. [2021-05-21 23:52:40,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:52:40,467 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:52:40,467 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:52:40,467 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-05-21 23:52:40,467 INFO L430 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:52:40,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:52:40,468 INFO L82 PathProgramCache]: Analyzing trace with hash -2104324993, now seen corresponding path program 68 times [2021-05-21 23:52:40,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:52:40,468 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459490700] [2021-05-21 23:52:40,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:52:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:52:41,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:52:41,078 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:52:41,078 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459490700] [2021-05-21 23:52:41,078 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459490700] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:52:41,078 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:52:41,078 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:52:41,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564397269] [2021-05-21 23:52:41,079 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:52:41,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:52:41,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:52:41,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:52:41,079 INFO L87 Difference]: Start difference. First operand 5012 states and 13318 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:42,346 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-05-21 23:52:42,545 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-05-21 23:52:43,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:52:43,963 INFO L93 Difference]: Finished difference Result 6022 states and 15680 transitions. [2021-05-21 23:52:43,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-21 23:52:43,963 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:52:43,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:52:43,969 INFO L225 Difference]: With dead ends: 6022 [2021-05-21 23:52:43,969 INFO L226 Difference]: Without dead ends: 5707 [2021-05-21 23:52:43,969 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2419.4ms TimeCoverageRelationStatistics Valid=597, Invalid=2825, Unknown=0, NotChecked=0, Total=3422 [2021-05-21 23:52:43,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5707 states. [2021-05-21 23:52:44,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5707 to 5028. [2021-05-21 23:52:44,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5028 states, 5027 states have (on average 2.654863735826537) internal successors, (13346), 5027 states have internal predecessors, (13346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:44,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5028 states to 5028 states and 13346 transitions. [2021-05-21 23:52:44,028 INFO L78 Accepts]: Start accepts. Automaton has 5028 states and 13346 transitions. Word has length 119 [2021-05-21 23:52:44,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:52:44,028 INFO L482 AbstractCegarLoop]: Abstraction has 5028 states and 13346 transitions. [2021-05-21 23:52:44,028 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:44,028 INFO L276 IsEmpty]: Start isEmpty. Operand 5028 states and 13346 transitions. [2021-05-21 23:52:44,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:52:44,032 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:52:44,032 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:52:44,032 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-05-21 23:52:44,032 INFO L430 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:52:44,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:52:44,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1584964223, now seen corresponding path program 69 times [2021-05-21 23:52:44,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:52:44,032 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113299803] [2021-05-21 23:52:44,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:52:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:52:44,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:52:44,656 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:52:44,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113299803] [2021-05-21 23:52:44,656 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113299803] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:52:44,656 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:52:44,656 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:52:44,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130552365] [2021-05-21 23:52:44,656 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:52:44,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:52:44,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:52:44,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:52:44,656 INFO L87 Difference]: Start difference. First operand 5028 states and 13346 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:46,084 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-05-21 23:52:47,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:52:47,182 INFO L93 Difference]: Finished difference Result 5687 states and 14941 transitions. [2021-05-21 23:52:47,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-21 23:52:47,182 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:52:47,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:52:47,187 INFO L225 Difference]: With dead ends: 5687 [2021-05-21 23:52:47,187 INFO L226 Difference]: Without dead ends: 5474 [2021-05-21 23:52:47,188 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 2162.1ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-05-21 23:52:47,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5474 states. [2021-05-21 23:52:47,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5474 to 5032. [2021-05-21 23:52:47,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5032 states, 5031 states have (on average 2.653945537666468) internal successors, (13352), 5031 states have internal predecessors, (13352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:47,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5032 states to 5032 states and 13352 transitions. [2021-05-21 23:52:47,242 INFO L78 Accepts]: Start accepts. Automaton has 5032 states and 13352 transitions. Word has length 119 [2021-05-21 23:52:47,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:52:47,242 INFO L482 AbstractCegarLoop]: Abstraction has 5032 states and 13352 transitions. [2021-05-21 23:52:47,242 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:47,243 INFO L276 IsEmpty]: Start isEmpty. Operand 5032 states and 13352 transitions. [2021-05-21 23:52:47,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:52:47,246 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:52:47,246 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:52:47,246 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-05-21 23:52:47,246 INFO L430 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:52:47,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:52:47,247 INFO L82 PathProgramCache]: Analyzing trace with hash 394887581, now seen corresponding path program 70 times [2021-05-21 23:52:47,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:52:47,247 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632194328] [2021-05-21 23:52:47,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:52:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:52:47,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:52:47,898 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:52:47,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632194328] [2021-05-21 23:52:47,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632194328] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:52:47,898 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:52:47,898 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:52:47,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945296678] [2021-05-21 23:52:47,898 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:52:47,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:52:47,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:52:47,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:52:47,899 INFO L87 Difference]: Start difference. First operand 5032 states and 13352 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:48,652 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-05-21 23:52:50,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:52:50,577 INFO L93 Difference]: Finished difference Result 5973 states and 15531 transitions. [2021-05-21 23:52:50,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-21 23:52:50,578 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:52:50,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:52:50,583 INFO L225 Difference]: With dead ends: 5973 [2021-05-21 23:52:50,583 INFO L226 Difference]: Without dead ends: 5651 [2021-05-21 23:52:50,583 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 2357.5ms TimeCoverageRelationStatistics Valid=532, Invalid=2660, Unknown=0, NotChecked=0, Total=3192 [2021-05-21 23:52:50,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5651 states. [2021-05-21 23:52:50,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5651 to 4944. [2021-05-21 23:52:50,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4944 states, 4943 states have (on average 2.6663969249443658) internal successors, (13180), 4943 states have internal predecessors, (13180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:50,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4944 states to 4944 states and 13180 transitions. [2021-05-21 23:52:50,640 INFO L78 Accepts]: Start accepts. Automaton has 4944 states and 13180 transitions. Word has length 119 [2021-05-21 23:52:50,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:52:50,640 INFO L482 AbstractCegarLoop]: Abstraction has 4944 states and 13180 transitions. [2021-05-21 23:52:50,640 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:50,641 INFO L276 IsEmpty]: Start isEmpty. Operand 4944 states and 13180 transitions. [2021-05-21 23:52:50,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:52:50,644 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:52:50,644 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:52:50,644 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-05-21 23:52:50,644 INFO L430 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:52:50,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:52:50,645 INFO L82 PathProgramCache]: Analyzing trace with hash 605192547, now seen corresponding path program 71 times [2021-05-21 23:52:50,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:52:50,645 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387064618] [2021-05-21 23:52:50,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:52:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:52:50,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:52:50,880 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:52:50,880 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387064618] [2021-05-21 23:52:50,880 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387064618] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:52:50,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:52:50,880 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-05-21 23:52:50,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739224287] [2021-05-21 23:52:50,880 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-21 23:52:50,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:52:50,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-21 23:52:50,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:52:50,881 INFO L87 Difference]: Start difference. First operand 4944 states and 13180 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:51,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:52:51,365 INFO L93 Difference]: Finished difference Result 7703 states and 19760 transitions. [2021-05-21 23:52:51,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-21 23:52:51,365 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:52:51,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:52:51,371 INFO L225 Difference]: With dead ends: 7703 [2021-05-21 23:52:51,372 INFO L226 Difference]: Without dead ends: 7591 [2021-05-21 23:52:51,372 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 376.8ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-05-21 23:52:51,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7591 states. [2021-05-21 23:52:51,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7591 to 4568. [2021-05-21 23:52:51,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4568 states, 4567 states have (on average 2.6301729800744473) internal successors, (12012), 4567 states have internal predecessors, (12012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:51,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4568 states to 4568 states and 12012 transitions. [2021-05-21 23:52:51,437 INFO L78 Accepts]: Start accepts. Automaton has 4568 states and 12012 transitions. Word has length 119 [2021-05-21 23:52:51,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:52:51,438 INFO L482 AbstractCegarLoop]: Abstraction has 4568 states and 12012 transitions. [2021-05-21 23:52:51,438 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:51,438 INFO L276 IsEmpty]: Start isEmpty. Operand 4568 states and 12012 transitions. [2021-05-21 23:52:51,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:52:51,442 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:52:51,442 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:52:51,442 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-05-21 23:52:51,442 INFO L430 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:52:51,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:52:51,442 INFO L82 PathProgramCache]: Analyzing trace with hash 33427719, now seen corresponding path program 72 times [2021-05-21 23:52:51,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:52:51,442 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072643451] [2021-05-21 23:52:51,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:52:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:52:52,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:52:52,102 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:52:52,102 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072643451] [2021-05-21 23:52:52,102 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072643451] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:52:52,103 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:52:52,103 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:52:52,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778310695] [2021-05-21 23:52:52,103 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:52:52,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:52:52,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:52:52,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:52:52,103 INFO L87 Difference]: Start difference. First operand 4568 states and 12012 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:54,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:52:54,294 INFO L93 Difference]: Finished difference Result 5081 states and 13240 transitions. [2021-05-21 23:52:54,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:52:54,294 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:52:54,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:52:54,299 INFO L225 Difference]: With dead ends: 5081 [2021-05-21 23:52:54,299 INFO L226 Difference]: Without dead ends: 4852 [2021-05-21 23:52:54,299 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 1991.8ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:52:54,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4852 states. [2021-05-21 23:52:54,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4852 to 4568. [2021-05-21 23:52:54,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4568 states, 4567 states have (on average 2.6284212831180205) internal successors, (12004), 4567 states have internal predecessors, (12004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:54,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4568 states to 4568 states and 12004 transitions. [2021-05-21 23:52:54,363 INFO L78 Accepts]: Start accepts. Automaton has 4568 states and 12004 transitions. Word has length 119 [2021-05-21 23:52:54,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:52:54,363 INFO L482 AbstractCegarLoop]: Abstraction has 4568 states and 12004 transitions. [2021-05-21 23:52:54,363 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:54,363 INFO L276 IsEmpty]: Start isEmpty. Operand 4568 states and 12004 transitions. [2021-05-21 23:52:54,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:52:54,367 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:52:54,367 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:52:54,367 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-05-21 23:52:54,367 INFO L430 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:52:54,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:52:54,367 INFO L82 PathProgramCache]: Analyzing trace with hash 29009579, now seen corresponding path program 73 times [2021-05-21 23:52:54,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:52:54,368 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736638311] [2021-05-21 23:52:54,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:52:54,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:52:54,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:52:54,970 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:52:54,970 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736638311] [2021-05-21 23:52:54,970 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736638311] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:52:54,970 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:52:54,970 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:52:54,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935529961] [2021-05-21 23:52:54,970 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:52:54,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:52:54,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:52:54,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:52:54,971 INFO L87 Difference]: Start difference. First operand 4568 states and 12004 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:57,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:52:57,223 INFO L93 Difference]: Finished difference Result 5503 states and 14343 transitions. [2021-05-21 23:52:57,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-21 23:52:57,223 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:52:57,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:52:57,228 INFO L225 Difference]: With dead ends: 5503 [2021-05-21 23:52:57,228 INFO L226 Difference]: Without dead ends: 5294 [2021-05-21 23:52:57,228 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 1972.1ms TimeCoverageRelationStatistics Valid=448, Invalid=2308, Unknown=0, NotChecked=0, Total=2756 [2021-05-21 23:52:57,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2021-05-21 23:52:57,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 4856. [2021-05-21 23:52:57,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4856 states, 4855 states have (on average 2.6249227600411946) internal successors, (12744), 4855 states have internal predecessors, (12744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:57,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4856 states to 4856 states and 12744 transitions. [2021-05-21 23:52:57,282 INFO L78 Accepts]: Start accepts. Automaton has 4856 states and 12744 transitions. Word has length 119 [2021-05-21 23:52:57,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:52:57,283 INFO L482 AbstractCegarLoop]: Abstraction has 4856 states and 12744 transitions. [2021-05-21 23:52:57,283 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:52:57,283 INFO L276 IsEmpty]: Start isEmpty. Operand 4856 states and 12744 transitions. [2021-05-21 23:52:57,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:52:57,286 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:52:57,286 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:52:57,286 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-05-21 23:52:57,286 INFO L430 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:52:57,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:52:57,287 INFO L82 PathProgramCache]: Analyzing trace with hash -445696723, now seen corresponding path program 74 times [2021-05-21 23:52:57,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:52:57,287 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848291509] [2021-05-21 23:52:57,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:52:57,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:52:57,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:52:57,915 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:52:57,915 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848291509] [2021-05-21 23:52:57,915 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848291509] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:52:57,915 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:52:57,916 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:52:57,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824238868] [2021-05-21 23:52:57,916 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:52:57,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:52:57,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:52:57,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:52:57,916 INFO L87 Difference]: Start difference. First operand 4856 states and 12744 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:00,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:53:00,466 INFO L93 Difference]: Finished difference Result 5955 states and 15363 transitions. [2021-05-21 23:53:00,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-21 23:53:00,467 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:53:00,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:53:00,471 INFO L225 Difference]: With dead ends: 5955 [2021-05-21 23:53:00,471 INFO L226 Difference]: Without dead ends: 4966 [2021-05-21 23:53:00,472 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 2157.0ms TimeCoverageRelationStatistics Valid=515, Invalid=2677, Unknown=0, NotChecked=0, Total=3192 [2021-05-21 23:53:00,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4966 states. [2021-05-21 23:53:00,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4966 to 4520. [2021-05-21 23:53:00,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4520 states, 4519 states have (on average 2.6297853507413143) internal successors, (11884), 4519 states have internal predecessors, (11884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:00,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4520 states to 4520 states and 11884 transitions. [2021-05-21 23:53:00,540 INFO L78 Accepts]: Start accepts. Automaton has 4520 states and 11884 transitions. Word has length 119 [2021-05-21 23:53:00,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:53:00,540 INFO L482 AbstractCegarLoop]: Abstraction has 4520 states and 11884 transitions. [2021-05-21 23:53:00,540 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:00,540 INFO L276 IsEmpty]: Start isEmpty. Operand 4520 states and 11884 transitions. [2021-05-21 23:53:00,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:53:00,544 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:53:00,544 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:53:00,544 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-05-21 23:53:00,544 INFO L430 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:53:00,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:53:00,544 INFO L82 PathProgramCache]: Analyzing trace with hash -889761385, now seen corresponding path program 75 times [2021-05-21 23:53:00,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:53:00,544 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685427833] [2021-05-21 23:53:00,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:53:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:53:01,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:53:01,162 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:53:01,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685427833] [2021-05-21 23:53:01,162 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685427833] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:53:01,162 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:53:01,162 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:53:01,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980938087] [2021-05-21 23:53:01,162 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:53:01,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:53:01,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:53:01,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:53:01,163 INFO L87 Difference]: Start difference. First operand 4520 states and 11884 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:02,516 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-05-21 23:53:03,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:53:03,414 INFO L93 Difference]: Finished difference Result 5015 states and 13085 transitions. [2021-05-21 23:53:03,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-21 23:53:03,415 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:53:03,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:53:03,419 INFO L225 Difference]: With dead ends: 5015 [2021-05-21 23:53:03,419 INFO L226 Difference]: Without dead ends: 4682 [2021-05-21 23:53:03,419 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 2027.6ms TimeCoverageRelationStatistics Valid=460, Invalid=2296, Unknown=0, NotChecked=0, Total=2756 [2021-05-21 23:53:03,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4682 states. [2021-05-21 23:53:03,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4682 to 4400. [2021-05-21 23:53:03,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4400 states, 4399 states have (on average 2.6487838145032963) internal successors, (11652), 4399 states have internal predecessors, (11652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:03,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4400 states to 4400 states and 11652 transitions. [2021-05-21 23:53:03,466 INFO L78 Accepts]: Start accepts. Automaton has 4400 states and 11652 transitions. Word has length 119 [2021-05-21 23:53:03,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:53:03,466 INFO L482 AbstractCegarLoop]: Abstraction has 4400 states and 11652 transitions. [2021-05-21 23:53:03,466 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:03,467 INFO L276 IsEmpty]: Start isEmpty. Operand 4400 states and 11652 transitions. [2021-05-21 23:53:03,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:53:03,470 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:53:03,470 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:53:03,470 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-05-21 23:53:03,470 INFO L430 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:53:03,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:53:03,470 INFO L82 PathProgramCache]: Analyzing trace with hash 832813625, now seen corresponding path program 76 times [2021-05-21 23:53:03,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:53:03,470 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328849256] [2021-05-21 23:53:03,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:53:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:53:04,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:53:04,152 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:53:04,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328849256] [2021-05-21 23:53:04,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328849256] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:53:04,152 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:53:04,152 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:53:04,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695977231] [2021-05-21 23:53:04,152 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:53:04,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:53:04,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:53:04,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:53:04,153 INFO L87 Difference]: Start difference. First operand 4400 states and 11652 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:05,542 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-05-21 23:53:06,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:53:06,413 INFO L93 Difference]: Finished difference Result 4961 states and 13012 transitions. [2021-05-21 23:53:06,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:53:06,417 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:53:06,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:53:06,421 INFO L225 Difference]: With dead ends: 4961 [2021-05-21 23:53:06,421 INFO L226 Difference]: Without dead ends: 4704 [2021-05-21 23:53:06,422 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 1962.0ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:53:06,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4704 states. [2021-05-21 23:53:06,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4704 to 4368. [2021-05-21 23:53:06,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4368 states, 4367 states have (on average 2.6544538584840853) internal successors, (11592), 4367 states have internal predecessors, (11592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:06,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4368 states to 4368 states and 11592 transitions. [2021-05-21 23:53:06,468 INFO L78 Accepts]: Start accepts. Automaton has 4368 states and 11592 transitions. Word has length 119 [2021-05-21 23:53:06,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:53:06,468 INFO L482 AbstractCegarLoop]: Abstraction has 4368 states and 11592 transitions. [2021-05-21 23:53:06,468 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:06,468 INFO L276 IsEmpty]: Start isEmpty. Operand 4368 states and 11592 transitions. [2021-05-21 23:53:06,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:53:06,471 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:53:06,471 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:53:06,472 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-05-21 23:53:06,472 INFO L430 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:53:06,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:53:06,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1871316353, now seen corresponding path program 77 times [2021-05-21 23:53:06,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:53:06,472 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847848457] [2021-05-21 23:53:06,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:53:06,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:53:06,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:53:06,684 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:53:06,684 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847848457] [2021-05-21 23:53:06,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847848457] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:53:06,684 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:53:06,684 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-05-21 23:53:06,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19578577] [2021-05-21 23:53:06,684 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 23:53:06,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:53:06,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 23:53:06,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:53:06,684 INFO L87 Difference]: Start difference. First operand 4368 states and 11592 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:06,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:53:06,988 INFO L93 Difference]: Finished difference Result 7600 states and 19597 transitions. [2021-05-21 23:53:06,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 23:53:06,988 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:53:06,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:53:06,995 INFO L225 Difference]: With dead ends: 7600 [2021-05-21 23:53:06,995 INFO L226 Difference]: Without dead ends: 7600 [2021-05-21 23:53:06,996 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 267.2ms TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-05-21 23:53:07,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7600 states. [2021-05-21 23:53:07,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7600 to 4596. [2021-05-21 23:53:07,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4596 states, 4595 states have (on average 2.610228509249184) internal successors, (11994), 4595 states have internal predecessors, (11994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:07,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4596 states to 4596 states and 11994 transitions. [2021-05-21 23:53:07,062 INFO L78 Accepts]: Start accepts. Automaton has 4596 states and 11994 transitions. Word has length 119 [2021-05-21 23:53:07,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:53:07,062 INFO L482 AbstractCegarLoop]: Abstraction has 4596 states and 11994 transitions. [2021-05-21 23:53:07,062 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:07,062 INFO L276 IsEmpty]: Start isEmpty. Operand 4596 states and 11994 transitions. [2021-05-21 23:53:07,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:53:07,066 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:53:07,066 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:53:07,066 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-05-21 23:53:07,066 INFO L430 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:53:07,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:53:07,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1506696061, now seen corresponding path program 78 times [2021-05-21 23:53:07,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:53:07,066 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847996326] [2021-05-21 23:53:07,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:53:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:53:07,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:53:07,679 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:53:07,679 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847996326] [2021-05-21 23:53:07,679 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847996326] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:53:07,679 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:53:07,679 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:53:07,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335899779] [2021-05-21 23:53:07,680 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:53:07,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:53:07,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:53:07,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:53:07,680 INFO L87 Difference]: Start difference. First operand 4596 states and 11994 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:08,859 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-05-21 23:53:10,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:53:10,649 INFO L93 Difference]: Finished difference Result 6838 states and 17606 transitions. [2021-05-21 23:53:10,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:53:10,649 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:53:10,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:53:10,654 INFO L225 Difference]: With dead ends: 6838 [2021-05-21 23:53:10,654 INFO L226 Difference]: Without dead ends: 6547 [2021-05-21 23:53:10,655 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 2486.5ms TimeCoverageRelationStatistics Valid=571, Invalid=2969, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:53:10,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6547 states. [2021-05-21 23:53:10,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6547 to 5028. [2021-05-21 23:53:10,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5028 states, 5027 states have (on average 2.626218420529143) internal successors, (13202), 5027 states have internal predecessors, (13202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:10,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5028 states to 5028 states and 13202 transitions. [2021-05-21 23:53:10,712 INFO L78 Accepts]: Start accepts. Automaton has 5028 states and 13202 transitions. Word has length 119 [2021-05-21 23:53:10,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:53:10,712 INFO L482 AbstractCegarLoop]: Abstraction has 5028 states and 13202 transitions. [2021-05-21 23:53:10,712 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:10,713 INFO L276 IsEmpty]: Start isEmpty. Operand 5028 states and 13202 transitions. [2021-05-21 23:53:10,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:53:10,716 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:53:10,716 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:53:10,717 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-05-21 23:53:10,717 INFO L430 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:53:10,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:53:10,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1104556409, now seen corresponding path program 79 times [2021-05-21 23:53:10,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:53:10,717 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731221824] [2021-05-21 23:53:10,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:53:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:53:11,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:53:11,309 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:53:11,309 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731221824] [2021-05-21 23:53:11,309 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731221824] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:53:11,309 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:53:11,309 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:53:11,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596414802] [2021-05-21 23:53:11,309 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:53:11,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:53:11,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:53:11,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:53:11,309 INFO L87 Difference]: Start difference. First operand 5028 states and 13202 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:14,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:53:14,223 INFO L93 Difference]: Finished difference Result 7400 states and 19144 transitions. [2021-05-21 23:53:14,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:53:14,223 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:53:14,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:53:14,229 INFO L225 Difference]: With dead ends: 7400 [2021-05-21 23:53:14,229 INFO L226 Difference]: Without dead ends: 6634 [2021-05-21 23:53:14,229 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 2449.3ms TimeCoverageRelationStatistics Valid=614, Invalid=2926, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:53:14,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6634 states. [2021-05-21 23:53:14,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6634 to 5148. [2021-05-21 23:53:14,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5148 states, 5147 states have (on average 2.606955508062949) internal successors, (13418), 5147 states have internal predecessors, (13418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:14,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5148 states to 5148 states and 13418 transitions. [2021-05-21 23:53:14,292 INFO L78 Accepts]: Start accepts. Automaton has 5148 states and 13418 transitions. Word has length 119 [2021-05-21 23:53:14,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:53:14,292 INFO L482 AbstractCegarLoop]: Abstraction has 5148 states and 13418 transitions. [2021-05-21 23:53:14,292 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:14,292 INFO L276 IsEmpty]: Start isEmpty. Operand 5148 states and 13418 transitions. [2021-05-21 23:53:14,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:53:14,296 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:53:14,296 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:53:14,296 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-05-21 23:53:14,296 INFO L430 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:53:14,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:53:14,296 INFO L82 PathProgramCache]: Analyzing trace with hash 103868955, now seen corresponding path program 80 times [2021-05-21 23:53:14,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:53:14,297 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103143924] [2021-05-21 23:53:14,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:53:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:53:14,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:53:14,944 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:53:14,944 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103143924] [2021-05-21 23:53:14,944 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103143924] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:53:14,944 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:53:14,944 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:53:14,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249580131] [2021-05-21 23:53:14,944 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:53:14,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:53:14,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:53:14,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:53:14,944 INFO L87 Difference]: Start difference. First operand 5148 states and 13418 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:18,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:53:18,096 INFO L93 Difference]: Finished difference Result 6825 states and 17521 transitions. [2021-05-21 23:53:18,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-21 23:53:18,096 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:53:18,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:53:18,102 INFO L225 Difference]: With dead ends: 6825 [2021-05-21 23:53:18,102 INFO L226 Difference]: Without dead ends: 6034 [2021-05-21 23:53:18,102 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 2701.1ms TimeCoverageRelationStatistics Valid=635, Invalid=3147, Unknown=0, NotChecked=0, Total=3782 [2021-05-21 23:53:18,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6034 states. [2021-05-21 23:53:18,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6034 to 4548. [2021-05-21 23:53:18,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4548 states, 4547 states have (on average 2.606113921266769) internal successors, (11850), 4547 states have internal predecessors, (11850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:18,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4548 states to 4548 states and 11850 transitions. [2021-05-21 23:53:18,158 INFO L78 Accepts]: Start accepts. Automaton has 4548 states and 11850 transitions. Word has length 119 [2021-05-21 23:53:18,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:53:18,159 INFO L482 AbstractCegarLoop]: Abstraction has 4548 states and 11850 transitions. [2021-05-21 23:53:18,159 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:18,159 INFO L276 IsEmpty]: Start isEmpty. Operand 4548 states and 11850 transitions. [2021-05-21 23:53:18,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:53:18,162 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:53:18,162 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:53:18,162 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-05-21 23:53:18,163 INFO L430 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:53:18,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:53:18,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1499360957, now seen corresponding path program 81 times [2021-05-21 23:53:18,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:53:18,163 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930778276] [2021-05-21 23:53:18,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:53:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:53:18,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:53:18,817 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:53:18,817 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930778276] [2021-05-21 23:53:18,817 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930778276] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:53:18,817 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:53:18,817 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:53:18,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179296393] [2021-05-21 23:53:18,817 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:53:18,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:53:18,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:53:18,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:53:18,818 INFO L87 Difference]: Start difference. First operand 4548 states and 11850 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:20,306 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-05-21 23:53:21,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:53:21,774 INFO L93 Difference]: Finished difference Result 5576 states and 14238 transitions. [2021-05-21 23:53:21,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:53:21,774 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:53:21,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:53:21,779 INFO L225 Difference]: With dead ends: 5576 [2021-05-21 23:53:21,779 INFO L226 Difference]: Without dead ends: 5257 [2021-05-21 23:53:21,779 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 2602.1ms TimeCoverageRelationStatistics Valid=624, Invalid=2916, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:53:21,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5257 states. [2021-05-21 23:53:21,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5257 to 4536. [2021-05-21 23:53:21,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4536 states, 4535 states have (on average 2.6063947078280045) internal successors, (11820), 4535 states have internal predecessors, (11820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:21,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4536 states to 4536 states and 11820 transitions. [2021-05-21 23:53:21,831 INFO L78 Accepts]: Start accepts. Automaton has 4536 states and 11820 transitions. Word has length 119 [2021-05-21 23:53:21,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:53:21,831 INFO L482 AbstractCegarLoop]: Abstraction has 4536 states and 11820 transitions. [2021-05-21 23:53:21,831 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:21,831 INFO L276 IsEmpty]: Start isEmpty. Operand 4536 states and 11820 transitions. [2021-05-21 23:53:21,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:53:21,835 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:53:21,835 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:53:21,835 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-05-21 23:53:21,835 INFO L430 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:53:21,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:53:21,835 INFO L82 PathProgramCache]: Analyzing trace with hash -795045643, now seen corresponding path program 82 times [2021-05-21 23:53:21,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:53:21,835 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516870474] [2021-05-21 23:53:21,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:53:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:53:22,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:53:22,475 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:53:22,475 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516870474] [2021-05-21 23:53:22,475 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516870474] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:53:22,475 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:53:22,475 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:53:22,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537915849] [2021-05-21 23:53:22,475 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:53:22,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:53:22,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:53:22,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:53:22,476 INFO L87 Difference]: Start difference. First operand 4536 states and 11820 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:23,707 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-05-21 23:53:23,884 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-05-21 23:53:25,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:53:25,354 INFO L93 Difference]: Finished difference Result 5346 states and 13574 transitions. [2021-05-21 23:53:25,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-21 23:53:25,355 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:53:25,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:53:25,359 INFO L225 Difference]: With dead ends: 5346 [2021-05-21 23:53:25,359 INFO L226 Difference]: Without dead ends: 4967 [2021-05-21 23:53:25,360 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2505.1ms TimeCoverageRelationStatistics Valid=597, Invalid=2825, Unknown=0, NotChecked=0, Total=3422 [2021-05-21 23:53:25,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4967 states. [2021-05-21 23:53:25,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4967 to 4516. [2021-05-21 23:53:25,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4516 states, 4515 states have (on average 2.613953488372093) internal successors, (11802), 4515 states have internal predecessors, (11802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:25,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 11802 transitions. [2021-05-21 23:53:25,410 INFO L78 Accepts]: Start accepts. Automaton has 4516 states and 11802 transitions. Word has length 119 [2021-05-21 23:53:25,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:53:25,410 INFO L482 AbstractCegarLoop]: Abstraction has 4516 states and 11802 transitions. [2021-05-21 23:53:25,410 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:25,410 INFO L276 IsEmpty]: Start isEmpty. Operand 4516 states and 11802 transitions. [2021-05-21 23:53:25,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:53:25,413 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:53:25,413 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:53:25,413 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-05-21 23:53:25,414 INFO L430 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:53:25,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:53:25,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1008413389, now seen corresponding path program 83 times [2021-05-21 23:53:25,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:53:25,414 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163025551] [2021-05-21 23:53:25,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:53:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:53:26,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:53:26,074 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:53:26,074 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163025551] [2021-05-21 23:53:26,074 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163025551] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:53:26,074 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:53:26,074 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:53:26,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162001668] [2021-05-21 23:53:26,075 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:53:26,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:53:26,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:53:26,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:53:26,075 INFO L87 Difference]: Start difference. First operand 4516 states and 11802 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:26,946 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-05-21 23:53:28,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:53:28,831 INFO L93 Difference]: Finished difference Result 5274 states and 13434 transitions. [2021-05-21 23:53:28,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-21 23:53:28,831 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:53:28,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:53:28,836 INFO L225 Difference]: With dead ends: 5274 [2021-05-21 23:53:28,836 INFO L226 Difference]: Without dead ends: 4955 [2021-05-21 23:53:28,837 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 2404.6ms TimeCoverageRelationStatistics Valid=600, Invalid=2822, Unknown=0, NotChecked=0, Total=3422 [2021-05-21 23:53:28,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4955 states. [2021-05-21 23:53:28,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4955 to 4528. [2021-05-21 23:53:28,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4528 states, 4527 states have (on average 2.6092334879611223) internal successors, (11812), 4527 states have internal predecessors, (11812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:28,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4528 states to 4528 states and 11812 transitions. [2021-05-21 23:53:28,899 INFO L78 Accepts]: Start accepts. Automaton has 4528 states and 11812 transitions. Word has length 119 [2021-05-21 23:53:28,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:53:28,899 INFO L482 AbstractCegarLoop]: Abstraction has 4528 states and 11812 transitions. [2021-05-21 23:53:28,899 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:28,899 INFO L276 IsEmpty]: Start isEmpty. Operand 4528 states and 11812 transitions. [2021-05-21 23:53:28,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:53:28,903 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:53:28,903 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:53:28,903 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-05-21 23:53:28,903 INFO L430 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:53:28,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:53:28,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1003995249, now seen corresponding path program 84 times [2021-05-21 23:53:28,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:53:28,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820787765] [2021-05-21 23:53:28,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:53:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:53:29,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:53:29,499 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:53:29,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820787765] [2021-05-21 23:53:29,499 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820787765] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:53:29,499 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:53:29,499 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:53:29,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35884978] [2021-05-21 23:53:29,500 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:53:29,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:53:29,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:53:29,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:53:29,500 INFO L87 Difference]: Start difference. First operand 4528 states and 11812 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:32,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:53:32,433 INFO L93 Difference]: Finished difference Result 7050 states and 18169 transitions. [2021-05-21 23:53:32,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:53:32,434 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:53:32,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:53:32,438 INFO L225 Difference]: With dead ends: 7050 [2021-05-21 23:53:32,439 INFO L226 Difference]: Without dead ends: 6751 [2021-05-21 23:53:32,439 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 2436.0ms TimeCoverageRelationStatistics Valid=575, Invalid=2965, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:53:32,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6751 states. [2021-05-21 23:53:32,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6751 to 5104. [2021-05-21 23:53:32,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5104 states, 5103 states have (on average 2.625906329610033) internal successors, (13400), 5103 states have internal predecessors, (13400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:32,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5104 states to 5104 states and 13400 transitions. [2021-05-21 23:53:32,496 INFO L78 Accepts]: Start accepts. Automaton has 5104 states and 13400 transitions. Word has length 119 [2021-05-21 23:53:32,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:53:32,496 INFO L482 AbstractCegarLoop]: Abstraction has 5104 states and 13400 transitions. [2021-05-21 23:53:32,496 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:32,496 INFO L276 IsEmpty]: Start isEmpty. Operand 5104 states and 13400 transitions. [2021-05-21 23:53:32,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:53:32,500 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:53:32,500 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:53:32,500 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-05-21 23:53:32,500 INFO L430 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:53:32,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:53:32,500 INFO L82 PathProgramCache]: Analyzing trace with hash 529288947, now seen corresponding path program 85 times [2021-05-21 23:53:32,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:53:32,501 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778000073] [2021-05-21 23:53:32,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:53:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:53:33,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:53:33,108 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:53:33,108 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778000073] [2021-05-21 23:53:33,108 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778000073] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:53:33,108 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:53:33,108 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:53:33,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812820948] [2021-05-21 23:53:33,108 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:53:33,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:53:33,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:53:33,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:53:33,109 INFO L87 Difference]: Start difference. First operand 5104 states and 13400 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:34,221 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-05-21 23:53:36,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:53:36,303 INFO L93 Difference]: Finished difference Result 7738 states and 19953 transitions. [2021-05-21 23:53:36,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-05-21 23:53:36,304 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:53:36,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:53:36,309 INFO L225 Difference]: With dead ends: 7738 [2021-05-21 23:53:36,309 INFO L226 Difference]: Without dead ends: 6190 [2021-05-21 23:53:36,309 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 2698.5ms TimeCoverageRelationStatistics Valid=672, Invalid=3360, Unknown=0, NotChecked=0, Total=4032 [2021-05-21 23:53:36,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6190 states. [2021-05-21 23:53:36,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6190 to 4576. [2021-05-21 23:53:36,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4576 states, 4575 states have (on average 2.5975956284153003) internal successors, (11884), 4575 states have internal predecessors, (11884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:36,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4576 states to 4576 states and 11884 transitions. [2021-05-21 23:53:36,363 INFO L78 Accepts]: Start accepts. Automaton has 4576 states and 11884 transitions. Word has length 119 [2021-05-21 23:53:36,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:53:36,363 INFO L482 AbstractCegarLoop]: Abstraction has 4576 states and 11884 transitions. [2021-05-21 23:53:36,363 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:36,363 INFO L276 IsEmpty]: Start isEmpty. Operand 4576 states and 11884 transitions. [2021-05-21 23:53:36,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:53:36,367 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:53:36,367 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:53:36,367 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-05-21 23:53:36,367 INFO L430 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:53:36,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:53:36,367 INFO L82 PathProgramCache]: Analyzing trace with hash 85224285, now seen corresponding path program 86 times [2021-05-21 23:53:36,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:53:36,367 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110566432] [2021-05-21 23:53:36,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:53:36,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:53:37,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:53:37,001 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:53:37,001 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110566432] [2021-05-21 23:53:37,001 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110566432] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:53:37,001 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:53:37,001 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:53:37,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92624088] [2021-05-21 23:53:37,001 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:53:37,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:53:37,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:53:37,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:53:37,002 INFO L87 Difference]: Start difference. First operand 4576 states and 11884 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:38,537 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-05-21 23:53:39,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:53:39,927 INFO L93 Difference]: Finished difference Result 5684 states and 14488 transitions. [2021-05-21 23:53:39,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:53:39,927 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:53:39,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:53:39,931 INFO L225 Difference]: With dead ends: 5684 [2021-05-21 23:53:39,931 INFO L226 Difference]: Without dead ends: 5261 [2021-05-21 23:53:39,932 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 2523.6ms TimeCoverageRelationStatistics Valid=624, Invalid=2916, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:53:39,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5261 states. [2021-05-21 23:53:39,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5261 to 4456. [2021-05-21 23:53:39,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4456 states, 4455 states have (on average 2.6154882154882153) internal successors, (11652), 4455 states have internal predecessors, (11652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:39,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4456 states to 4456 states and 11652 transitions. [2021-05-21 23:53:39,986 INFO L78 Accepts]: Start accepts. Automaton has 4456 states and 11652 transitions. Word has length 119 [2021-05-21 23:53:39,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:53:39,986 INFO L482 AbstractCegarLoop]: Abstraction has 4456 states and 11652 transitions. [2021-05-21 23:53:39,986 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:39,986 INFO L276 IsEmpty]: Start isEmpty. Operand 4456 states and 11652 transitions. [2021-05-21 23:53:39,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:53:39,990 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:53:39,990 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:53:39,990 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-05-21 23:53:39,990 INFO L430 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:53:39,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:53:39,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1329069541, now seen corresponding path program 87 times [2021-05-21 23:53:39,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:53:39,990 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469148103] [2021-05-21 23:53:39,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:53:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:53:40,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:53:40,213 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:53:40,213 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469148103] [2021-05-21 23:53:40,213 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469148103] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:53:40,213 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:53:40,213 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-05-21 23:53:40,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973521024] [2021-05-21 23:53:40,213 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-21 23:53:40,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:53:40,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-21 23:53:40,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:53:40,214 INFO L87 Difference]: Start difference. First operand 4456 states and 11652 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:40,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:53:40,678 INFO L93 Difference]: Finished difference Result 4374 states and 11032 transitions. [2021-05-21 23:53:40,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-21 23:53:40,678 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:53:40,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:53:40,682 INFO L225 Difference]: With dead ends: 4374 [2021-05-21 23:53:40,682 INFO L226 Difference]: Without dead ends: 4262 [2021-05-21 23:53:40,682 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 391.5ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-05-21 23:53:40,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4262 states. [2021-05-21 23:53:40,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4262 to 3600. [2021-05-21 23:53:40,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3600 states, 3599 states have (on average 2.569046957488191) internal successors, (9246), 3599 states have internal predecessors, (9246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:40,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3600 states to 3600 states and 9246 transitions. [2021-05-21 23:53:40,721 INFO L78 Accepts]: Start accepts. Automaton has 3600 states and 9246 transitions. Word has length 119 [2021-05-21 23:53:40,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:53:40,721 INFO L482 AbstractCegarLoop]: Abstraction has 3600 states and 9246 transitions. [2021-05-21 23:53:40,721 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:40,721 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 9246 transitions. [2021-05-21 23:53:40,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:53:40,724 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:53:40,724 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:53:40,724 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-05-21 23:53:40,724 INFO L430 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:53:40,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:53:40,725 INFO L82 PathProgramCache]: Analyzing trace with hash -496809957, now seen corresponding path program 88 times [2021-05-21 23:53:40,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:53:40,725 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932305717] [2021-05-21 23:53:40,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:53:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:53:41,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:53:41,347 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:53:41,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932305717] [2021-05-21 23:53:41,347 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932305717] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:53:41,347 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:53:41,347 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:53:41,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528727264] [2021-05-21 23:53:41,347 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:53:41,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:53:41,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:53:41,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:53:41,348 INFO L87 Difference]: Start difference. First operand 3600 states and 9246 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:43,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:53:43,513 INFO L93 Difference]: Finished difference Result 3873 states and 9766 transitions. [2021-05-21 23:53:43,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:53:43,513 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:53:43,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:53:43,517 INFO L225 Difference]: With dead ends: 3873 [2021-05-21 23:53:43,517 INFO L226 Difference]: Without dead ends: 3648 [2021-05-21 23:53:43,517 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 1935.9ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:53:43,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3648 states. [2021-05-21 23:53:43,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3648 to 3620. [2021-05-21 23:53:43,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3620 states, 3619 states have (on average 2.564244266371926) internal successors, (9280), 3619 states have internal predecessors, (9280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:43,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 9280 transitions. [2021-05-21 23:53:43,555 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 9280 transitions. Word has length 119 [2021-05-21 23:53:43,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:53:43,555 INFO L482 AbstractCegarLoop]: Abstraction has 3620 states and 9280 transitions. [2021-05-21 23:53:43,555 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:43,555 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 9280 transitions. [2021-05-21 23:53:43,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:53:43,558 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:53:43,558 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:53:43,558 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-05-21 23:53:43,558 INFO L430 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:53:43,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:53:43,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1625668367, now seen corresponding path program 89 times [2021-05-21 23:53:43,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:53:43,559 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089648228] [2021-05-21 23:53:43,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:53:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:53:44,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:53:44,157 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:53:44,157 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089648228] [2021-05-21 23:53:44,157 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089648228] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:53:44,158 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:53:44,158 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:53:44,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775884976] [2021-05-21 23:53:44,158 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:53:44,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:53:44,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:53:44,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:53:44,158 INFO L87 Difference]: Start difference. First operand 3620 states and 9280 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:46,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:53:46,396 INFO L93 Difference]: Finished difference Result 3971 states and 9972 transitions. [2021-05-21 23:53:46,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-21 23:53:46,396 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:53:46,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:53:46,399 INFO L225 Difference]: With dead ends: 3971 [2021-05-21 23:53:46,400 INFO L226 Difference]: Without dead ends: 3737 [2021-05-21 23:53:46,400 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 1990.2ms TimeCoverageRelationStatistics Valid=451, Invalid=2305, Unknown=0, NotChecked=0, Total=2756 [2021-05-21 23:53:46,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3737 states. [2021-05-21 23:53:46,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3737 to 3624. [2021-05-21 23:53:46,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3624 states, 3623 states have (on average 2.5630692796025394) internal successors, (9286), 3623 states have internal predecessors, (9286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:46,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3624 states to 3624 states and 9286 transitions. [2021-05-21 23:53:46,437 INFO L78 Accepts]: Start accepts. Automaton has 3624 states and 9286 transitions. Word has length 119 [2021-05-21 23:53:46,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:53:46,437 INFO L482 AbstractCegarLoop]: Abstraction has 3624 states and 9286 transitions. [2021-05-21 23:53:46,437 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:46,437 INFO L276 IsEmpty]: Start isEmpty. Operand 3624 states and 9286 transitions. [2021-05-21 23:53:46,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:53:46,440 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:53:46,440 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:53:46,440 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-05-21 23:53:46,440 INFO L430 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:53:46,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:53:46,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1211899971, now seen corresponding path program 90 times [2021-05-21 23:53:46,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:53:46,440 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225765420] [2021-05-21 23:53:46,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:53:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:53:47,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:53:47,054 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:53:47,054 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225765420] [2021-05-21 23:53:47,054 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225765420] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:53:47,054 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:53:47,054 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:53:47,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738497449] [2021-05-21 23:53:47,054 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:53:47,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:53:47,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:53:47,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:53:47,054 INFO L87 Difference]: Start difference. First operand 3624 states and 9286 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:48,334 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-05-21 23:53:49,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:53:49,173 INFO L93 Difference]: Finished difference Result 3853 states and 9720 transitions. [2021-05-21 23:53:49,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:53:49,174 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:53:49,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:53:49,177 INFO L225 Difference]: With dead ends: 3853 [2021-05-21 23:53:49,177 INFO L226 Difference]: Without dead ends: 3624 [2021-05-21 23:53:49,177 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 1929.6ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:53:49,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3624 states. [2021-05-21 23:53:49,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3624 to 3608. [2021-05-21 23:53:49,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3608 states, 3607 states have (on average 2.5650124757416135) internal successors, (9252), 3607 states have internal predecessors, (9252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:49,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3608 states to 3608 states and 9252 transitions. [2021-05-21 23:53:49,215 INFO L78 Accepts]: Start accepts. Automaton has 3608 states and 9252 transitions. Word has length 119 [2021-05-21 23:53:49,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:53:49,215 INFO L482 AbstractCegarLoop]: Abstraction has 3608 states and 9252 transitions. [2021-05-21 23:53:49,215 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:49,215 INFO L276 IsEmpty]: Start isEmpty. Operand 3608 states and 9252 transitions. [2021-05-21 23:53:49,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:53:49,218 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:53:49,218 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:53:49,218 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-05-21 23:53:49,218 INFO L430 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:53:49,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:53:49,218 INFO L82 PathProgramCache]: Analyzing trace with hash -830903603, now seen corresponding path program 91 times [2021-05-21 23:53:49,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:53:49,218 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315718946] [2021-05-21 23:53:49,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:53:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:53:49,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:53:49,794 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:53:49,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315718946] [2021-05-21 23:53:49,794 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315718946] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:53:49,794 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:53:49,794 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:53:49,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815426047] [2021-05-21 23:53:49,794 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:53:49,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:53:49,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:53:49,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:53:49,795 INFO L87 Difference]: Start difference. First operand 3608 states and 9252 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:52,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:53:52,032 INFO L93 Difference]: Finished difference Result 4573 states and 11573 transitions. [2021-05-21 23:53:52,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-21 23:53:52,032 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:53:52,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:53:52,036 INFO L225 Difference]: With dead ends: 4573 [2021-05-21 23:53:52,036 INFO L226 Difference]: Without dead ends: 4364 [2021-05-21 23:53:52,036 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 1943.1ms TimeCoverageRelationStatistics Valid=463, Invalid=2399, Unknown=0, NotChecked=0, Total=2862 [2021-05-21 23:53:52,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4364 states. [2021-05-21 23:53:52,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4364 to 3980. [2021-05-21 23:53:52,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3980 states, 3979 states have (on average 2.5594370444835386) internal successors, (10184), 3979 states have internal predecessors, (10184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:52,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3980 states to 3980 states and 10184 transitions. [2021-05-21 23:53:52,079 INFO L78 Accepts]: Start accepts. Automaton has 3980 states and 10184 transitions. Word has length 119 [2021-05-21 23:53:52,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:53:52,079 INFO L482 AbstractCegarLoop]: Abstraction has 3980 states and 10184 transitions. [2021-05-21 23:53:52,080 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:52,080 INFO L276 IsEmpty]: Start isEmpty. Operand 3980 states and 10184 transitions. [2021-05-21 23:53:52,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:53:52,082 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:53:52,083 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:53:52,083 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-05-21 23:53:52,083 INFO L430 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:53:52,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:53:52,083 INFO L82 PathProgramCache]: Analyzing trace with hash -1305609905, now seen corresponding path program 92 times [2021-05-21 23:53:52,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:53:52,083 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960200928] [2021-05-21 23:53:52,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:53:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:53:52,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:53:52,676 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:53:52,676 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960200928] [2021-05-21 23:53:52,676 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960200928] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:53:52,676 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:53:52,676 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:53:52,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800622239] [2021-05-21 23:53:52,677 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:53:52,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:53:52,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:53:52,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:53:52,677 INFO L87 Difference]: Start difference. First operand 3980 states and 10184 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:55,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:53:55,431 INFO L93 Difference]: Finished difference Result 5025 states and 12593 transitions. [2021-05-21 23:53:55,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-21 23:53:55,431 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:53:55,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:53:55,434 INFO L225 Difference]: With dead ends: 5025 [2021-05-21 23:53:55,435 INFO L226 Difference]: Without dead ends: 4036 [2021-05-21 23:53:55,435 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 2307.8ms TimeCoverageRelationStatistics Valid=524, Invalid=2782, Unknown=0, NotChecked=0, Total=3306 [2021-05-21 23:53:55,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4036 states. [2021-05-21 23:53:55,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4036 to 3644. [2021-05-21 23:53:55,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3644 states, 3643 states have (on average 2.5330771342300302) internal successors, (9228), 3643 states have internal predecessors, (9228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:55,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3644 states to 3644 states and 9228 transitions. [2021-05-21 23:53:55,473 INFO L78 Accepts]: Start accepts. Automaton has 3644 states and 9228 transitions. Word has length 119 [2021-05-21 23:53:55,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:53:55,473 INFO L482 AbstractCegarLoop]: Abstraction has 3644 states and 9228 transitions. [2021-05-21 23:53:55,473 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:55,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3644 states and 9228 transitions. [2021-05-21 23:53:55,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:53:55,476 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:53:55,476 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:53:55,476 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-05-21 23:53:55,476 INFO L430 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:53:55,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:53:55,477 INFO L82 PathProgramCache]: Analyzing trace with hash -70632339, now seen corresponding path program 93 times [2021-05-21 23:53:55,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:53:55,477 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817122738] [2021-05-21 23:53:55,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:53:55,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:53:56,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:53:56,072 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:53:56,072 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817122738] [2021-05-21 23:53:56,072 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817122738] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:53:56,072 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:53:56,073 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:53:56,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362429940] [2021-05-21 23:53:56,073 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:53:56,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:53:56,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:53:56,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:53:56,073 INFO L87 Difference]: Start difference. First operand 3644 states and 9228 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:58,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:53:58,707 INFO L93 Difference]: Finished difference Result 4193 states and 10452 transitions. [2021-05-21 23:53:58,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-21 23:53:58,708 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:53:58,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:53:58,711 INFO L225 Difference]: With dead ends: 4193 [2021-05-21 23:53:58,711 INFO L226 Difference]: Without dead ends: 3839 [2021-05-21 23:53:58,711 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 2169.5ms TimeCoverageRelationStatistics Valid=460, Invalid=2402, Unknown=0, NotChecked=0, Total=2862 [2021-05-21 23:53:58,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3839 states. [2021-05-21 23:53:58,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3839 to 3524. [2021-05-21 23:53:58,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 3523 states have (on average 2.551234743116662) internal successors, (8988), 3523 states have internal predecessors, (8988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:58,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 8988 transitions. [2021-05-21 23:53:58,748 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 8988 transitions. Word has length 119 [2021-05-21 23:53:58,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:53:58,749 INFO L482 AbstractCegarLoop]: Abstraction has 3524 states and 8988 transitions. [2021-05-21 23:53:58,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:53:58,749 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 8988 transitions. [2021-05-21 23:53:58,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:53:58,751 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:53:58,751 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:53:58,752 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-05-21 23:53:58,752 INFO L430 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:53:58,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:53:58,752 INFO L82 PathProgramCache]: Analyzing trace with hash 969626369, now seen corresponding path program 94 times [2021-05-21 23:53:58,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:53:58,752 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854064885] [2021-05-21 23:53:58,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:53:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:53:59,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:53:59,338 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:53:59,338 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854064885] [2021-05-21 23:53:59,339 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854064885] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:53:59,339 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:53:59,339 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:53:59,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549721757] [2021-05-21 23:53:59,339 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:53:59,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:53:59,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:53:59,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:53:59,339 INFO L87 Difference]: Start difference. First operand 3524 states and 8988 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:01,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:54:01,846 INFO L93 Difference]: Finished difference Result 4011 states and 10073 transitions. [2021-05-21 23:54:01,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-21 23:54:01,846 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:54:01,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:54:01,850 INFO L225 Difference]: With dead ends: 4011 [2021-05-21 23:54:01,850 INFO L226 Difference]: Without dead ends: 3802 [2021-05-21 23:54:01,850 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 2122.1ms TimeCoverageRelationStatistics Valid=485, Invalid=2485, Unknown=0, NotChecked=0, Total=2970 [2021-05-21 23:54:01,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3802 states. [2021-05-21 23:54:01,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3802 to 3668. [2021-05-21 23:54:01,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3668 states, 3667 states have (on average 2.548131988001091) internal successors, (9344), 3667 states have internal predecessors, (9344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:01,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 9344 transitions. [2021-05-21 23:54:01,887 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 9344 transitions. Word has length 119 [2021-05-21 23:54:01,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:54:01,887 INFO L482 AbstractCegarLoop]: Abstraction has 3668 states and 9344 transitions. [2021-05-21 23:54:01,887 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:01,887 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 9344 transitions. [2021-05-21 23:54:01,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:54:01,890 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:54:01,890 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:54:01,890 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-05-21 23:54:01,890 INFO L430 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:54:01,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:54:01,890 INFO L82 PathProgramCache]: Analyzing trace with hash 494920067, now seen corresponding path program 95 times [2021-05-21 23:54:01,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:54:01,890 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279241796] [2021-05-21 23:54:01,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:54:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:54:02,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:54:02,472 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:54:02,472 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279241796] [2021-05-21 23:54:02,472 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279241796] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:54:02,472 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:54:02,472 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:54:02,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953225048] [2021-05-21 23:54:02,472 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:54:02,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:54:02,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:54:02,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:54:02,473 INFO L87 Difference]: Start difference. First operand 3668 states and 9344 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:05,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:54:05,150 INFO L93 Difference]: Finished difference Result 4283 states and 10649 transitions. [2021-05-21 23:54:05,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-21 23:54:05,150 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:54:05,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:54:05,153 INFO L225 Difference]: With dead ends: 4283 [2021-05-21 23:54:05,153 INFO L226 Difference]: Without dead ends: 3294 [2021-05-21 23:54:05,153 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 2283.6ms TimeCoverageRelationStatistics Valid=549, Invalid=2873, Unknown=0, NotChecked=0, Total=3422 [2021-05-21 23:54:05,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3294 states. [2021-05-21 23:54:05,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3294 to 3116. [2021-05-21 23:54:05,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 3115 states have (on average 2.5502407704654897) internal successors, (7944), 3115 states have internal predecessors, (7944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:05,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 7944 transitions. [2021-05-21 23:54:05,185 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 7944 transitions. Word has length 119 [2021-05-21 23:54:05,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:54:05,185 INFO L482 AbstractCegarLoop]: Abstraction has 3116 states and 7944 transitions. [2021-05-21 23:54:05,185 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:05,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 7944 transitions. [2021-05-21 23:54:05,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:54:05,187 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:54:05,187 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:54:05,187 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-05-21 23:54:05,187 INFO L430 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:54:05,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:54:05,188 INFO L82 PathProgramCache]: Analyzing trace with hash 50855405, now seen corresponding path program 96 times [2021-05-21 23:54:05,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:54:05,188 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245479187] [2021-05-21 23:54:05,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:54:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:54:05,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:54:05,790 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:54:05,790 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245479187] [2021-05-21 23:54:05,790 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245479187] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:54:05,790 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:54:05,790 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:54:05,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746164796] [2021-05-21 23:54:05,790 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:54:05,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:54:05,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:54:05,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:54:05,791 INFO L87 Difference]: Start difference. First operand 3116 states and 7944 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:06,933 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-05-21 23:54:07,237 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-05-21 23:54:08,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:54:08,255 INFO L93 Difference]: Finished difference Result 3337 states and 8362 transitions. [2021-05-21 23:54:08,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-21 23:54:08,255 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:54:08,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:54:08,257 INFO L225 Difference]: With dead ends: 3337 [2021-05-21 23:54:08,257 INFO L226 Difference]: Without dead ends: 3100 [2021-05-21 23:54:08,258 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 2128.1ms TimeCoverageRelationStatistics Valid=480, Invalid=2382, Unknown=0, NotChecked=0, Total=2862 [2021-05-21 23:54:08,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3100 states. [2021-05-21 23:54:08,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3100 to 3092. [2021-05-21 23:54:08,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3092 states, 3091 states have (on average 2.554513102555807) internal successors, (7896), 3091 states have internal predecessors, (7896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:08,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3092 states to 3092 states and 7896 transitions. [2021-05-21 23:54:08,289 INFO L78 Accepts]: Start accepts. Automaton has 3092 states and 7896 transitions. Word has length 119 [2021-05-21 23:54:08,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:54:08,289 INFO L482 AbstractCegarLoop]: Abstraction has 3092 states and 7896 transitions. [2021-05-21 23:54:08,289 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:08,289 INFO L276 IsEmpty]: Start isEmpty. Operand 3092 states and 7896 transitions. [2021-05-21 23:54:08,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:54:08,292 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:54:08,292 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:54:08,292 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-05-21 23:54:08,292 INFO L430 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:54:08,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:54:08,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1512238849, now seen corresponding path program 97 times [2021-05-21 23:54:08,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:54:08,292 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324921564] [2021-05-21 23:54:08,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:54:08,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:54:08,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:54:08,884 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:54:08,884 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324921564] [2021-05-21 23:54:08,884 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324921564] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:54:08,884 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:54:08,884 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:54:08,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452017212] [2021-05-21 23:54:08,885 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:54:08,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:54:08,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:54:08,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:54:08,885 INFO L87 Difference]: Start difference. First operand 3092 states and 7896 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:11,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:54:11,354 INFO L93 Difference]: Finished difference Result 3427 states and 8560 transitions. [2021-05-21 23:54:11,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-21 23:54:11,354 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:54:11,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:54:11,357 INFO L225 Difference]: With dead ends: 3427 [2021-05-21 23:54:11,357 INFO L226 Difference]: Without dead ends: 3193 [2021-05-21 23:54:11,357 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 2110.3ms TimeCoverageRelationStatistics Valid=467, Invalid=2395, Unknown=0, NotChecked=0, Total=2862 [2021-05-21 23:54:11,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3193 states. [2021-05-21 23:54:11,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3193 to 3096. [2021-05-21 23:54:11,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3096 states, 3095 states have (on average 2.553150242326333) internal successors, (7902), 3095 states have internal predecessors, (7902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:11,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3096 states to 3096 states and 7902 transitions. [2021-05-21 23:54:11,389 INFO L78 Accepts]: Start accepts. Automaton has 3096 states and 7902 transitions. Word has length 119 [2021-05-21 23:54:11,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:54:11,389 INFO L482 AbstractCegarLoop]: Abstraction has 3096 states and 7902 transitions. [2021-05-21 23:54:11,389 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:11,389 INFO L276 IsEmpty]: Start isEmpty. Operand 3096 states and 7902 transitions. [2021-05-21 23:54:11,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:54:11,392 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:54:11,392 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:54:11,392 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-05-21 23:54:11,392 INFO L430 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:54:11,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:54:11,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1570320461, now seen corresponding path program 98 times [2021-05-21 23:54:11,392 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:54:11,393 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785608884] [2021-05-21 23:54:11,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:54:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:54:11,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:54:11,985 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:54:11,985 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785608884] [2021-05-21 23:54:11,985 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785608884] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:54:11,985 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:54:11,985 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:54:11,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525668544] [2021-05-21 23:54:11,986 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:54:11,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:54:11,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:54:11,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:54:11,986 INFO L87 Difference]: Start difference. First operand 3096 states and 7902 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:13,336 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-05-21 23:54:14,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:54:14,300 INFO L93 Difference]: Finished difference Result 3309 states and 8308 transitions. [2021-05-21 23:54:14,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-21 23:54:14,300 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:54:14,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:54:14,302 INFO L225 Difference]: With dead ends: 3309 [2021-05-21 23:54:14,302 INFO L226 Difference]: Without dead ends: 2996 [2021-05-21 23:54:14,303 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 2054.0ms TimeCoverageRelationStatistics Valid=462, Invalid=2294, Unknown=0, NotChecked=0, Total=2756 [2021-05-21 23:54:14,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2996 states. [2021-05-21 23:54:14,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2996 to 2996. [2021-05-21 23:54:14,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2996 states, 2995 states have (on average 2.5742904841402336) internal successors, (7710), 2995 states have internal predecessors, (7710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:14,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2996 states to 2996 states and 7710 transitions. [2021-05-21 23:54:14,332 INFO L78 Accepts]: Start accepts. Automaton has 2996 states and 7710 transitions. Word has length 119 [2021-05-21 23:54:14,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:54:14,332 INFO L482 AbstractCegarLoop]: Abstraction has 2996 states and 7710 transitions. [2021-05-21 23:54:14,332 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:14,332 INFO L276 IsEmpty]: Start isEmpty. Operand 2996 states and 7710 transitions. [2021-05-21 23:54:14,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:54:14,334 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:54:14,334 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:54:14,335 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-05-21 23:54:14,335 INFO L430 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:54:14,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:54:14,335 INFO L82 PathProgramCache]: Analyzing trace with hash 2039112753, now seen corresponding path program 99 times [2021-05-21 23:54:14,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:54:14,335 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974350471] [2021-05-21 23:54:14,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:54:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:54:14,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:54:14,923 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:54:14,923 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974350471] [2021-05-21 23:54:14,923 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974350471] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:54:14,923 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:54:14,923 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:54:14,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459087095] [2021-05-21 23:54:14,924 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:54:14,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:54:14,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:54:14,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:54:14,924 INFO L87 Difference]: Start difference. First operand 2996 states and 7710 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:16,140 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-05-21 23:54:16,340 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-05-21 23:54:17,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:54:17,204 INFO L93 Difference]: Finished difference Result 3221 states and 8141 transitions. [2021-05-21 23:54:17,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:54:17,204 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:54:17,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:54:17,206 INFO L225 Difference]: With dead ends: 3221 [2021-05-21 23:54:17,207 INFO L226 Difference]: Without dead ends: 2964 [2021-05-21 23:54:17,207 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 1962.4ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:54:17,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2021-05-21 23:54:17,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 2964. [2021-05-21 23:54:17,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2964 states, 2963 states have (on average 2.5818427269659128) internal successors, (7650), 2963 states have internal predecessors, (7650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:17,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2964 states to 2964 states and 7650 transitions. [2021-05-21 23:54:17,235 INFO L78 Accepts]: Start accepts. Automaton has 2964 states and 7650 transitions. Word has length 119 [2021-05-21 23:54:17,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:54:17,235 INFO L482 AbstractCegarLoop]: Abstraction has 2964 states and 7650 transitions. [2021-05-21 23:54:17,235 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:17,235 INFO L276 IsEmpty]: Start isEmpty. Operand 2964 states and 7650 transitions. [2021-05-21 23:54:17,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:54:17,237 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:54:17,237 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:54:17,237 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-05-21 23:54:17,237 INFO L430 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:54:17,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:54:17,238 INFO L82 PathProgramCache]: Analyzing trace with hash -144760637, now seen corresponding path program 100 times [2021-05-21 23:54:17,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:54:17,238 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595119990] [2021-05-21 23:54:17,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:54:17,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:54:17,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:54:17,875 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:54:17,875 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595119990] [2021-05-21 23:54:17,875 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595119990] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:54:17,875 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:54:17,875 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:54:17,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008629746] [2021-05-21 23:54:17,875 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:54:17,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:54:17,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:54:17,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:54:17,876 INFO L87 Difference]: Start difference. First operand 2964 states and 7650 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:19,057 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-05-21 23:54:19,264 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-05-21 23:54:20,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:54:20,179 INFO L93 Difference]: Finished difference Result 3277 states and 8257 transitions. [2021-05-21 23:54:20,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:54:20,180 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:54:20,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:54:20,182 INFO L225 Difference]: With dead ends: 3277 [2021-05-21 23:54:20,182 INFO L226 Difference]: Without dead ends: 3052 [2021-05-21 23:54:20,182 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 2058.9ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:54:20,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3052 states. [2021-05-21 23:54:20,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3052 to 2988. [2021-05-21 23:54:20,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2988 states, 2987 states have (on average 2.575828590559089) internal successors, (7694), 2987 states have internal predecessors, (7694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:20,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2988 states to 2988 states and 7694 transitions. [2021-05-21 23:54:20,210 INFO L78 Accepts]: Start accepts. Automaton has 2988 states and 7694 transitions. Word has length 119 [2021-05-21 23:54:20,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:54:20,211 INFO L482 AbstractCegarLoop]: Abstraction has 2988 states and 7694 transitions. [2021-05-21 23:54:20,211 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:20,211 INFO L276 IsEmpty]: Start isEmpty. Operand 2988 states and 7694 transitions. [2021-05-21 23:54:20,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:54:20,213 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:54:20,213 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:54:20,213 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-05-21 23:54:20,213 INFO L430 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:54:20,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:54:20,213 INFO L82 PathProgramCache]: Analyzing trace with hash 374600133, now seen corresponding path program 101 times [2021-05-21 23:54:20,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:54:20,213 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11785321] [2021-05-21 23:54:20,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:54:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:54:20,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:54:20,873 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:54:20,873 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11785321] [2021-05-21 23:54:20,873 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11785321] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:54:20,873 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:54:20,873 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:54:20,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203685131] [2021-05-21 23:54:20,873 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:54:20,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:54:20,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:54:20,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:54:20,874 INFO L87 Difference]: Start difference. First operand 2988 states and 7694 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:22,252 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-05-21 23:54:23,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:54:23,322 INFO L93 Difference]: Finished difference Result 3257 states and 8215 transitions. [2021-05-21 23:54:23,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-21 23:54:23,322 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:54:23,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:54:23,324 INFO L225 Difference]: With dead ends: 3257 [2021-05-21 23:54:23,324 INFO L226 Difference]: Without dead ends: 3044 [2021-05-21 23:54:23,324 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 2202.7ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-05-21 23:54:23,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3044 states. [2021-05-21 23:54:23,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3044 to 2992. [2021-05-21 23:54:23,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2992 states, 2991 states have (on average 2.5743898361751922) internal successors, (7700), 2991 states have internal predecessors, (7700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:23,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2992 states to 2992 states and 7700 transitions. [2021-05-21 23:54:23,352 INFO L78 Accepts]: Start accepts. Automaton has 2992 states and 7700 transitions. Word has length 119 [2021-05-21 23:54:23,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:54:23,352 INFO L482 AbstractCegarLoop]: Abstraction has 2992 states and 7700 transitions. [2021-05-21 23:54:23,352 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:23,352 INFO L276 IsEmpty]: Start isEmpty. Operand 2992 states and 7700 transitions. [2021-05-21 23:54:23,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:54:23,354 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:54:23,354 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:54:23,354 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-05-21 23:54:23,354 INFO L430 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:54:23,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:54:23,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1940515359, now seen corresponding path program 102 times [2021-05-21 23:54:23,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:54:23,355 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390109316] [2021-05-21 23:54:23,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:54:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:54:24,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:54:24,005 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:54:24,005 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390109316] [2021-05-21 23:54:24,005 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390109316] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:54:24,005 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:54:24,005 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:54:24,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528087779] [2021-05-21 23:54:24,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:54:24,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:54:24,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:54:24,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:54:24,006 INFO L87 Difference]: Start difference. First operand 2992 states and 7700 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:26,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:54:26,342 INFO L93 Difference]: Finished difference Result 3359 states and 8437 transitions. [2021-05-21 23:54:26,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-21 23:54:26,342 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:54:26,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:54:26,345 INFO L225 Difference]: With dead ends: 3359 [2021-05-21 23:54:26,345 INFO L226 Difference]: Without dead ends: 3109 [2021-05-21 23:54:26,346 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 2123.1ms TimeCoverageRelationStatistics Valid=446, Invalid=2310, Unknown=0, NotChecked=0, Total=2756 [2021-05-21 23:54:26,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2021-05-21 23:54:26,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 2976. [2021-05-21 23:54:26,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2976 states, 2975 states have (on average 2.5788235294117645) internal successors, (7672), 2975 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:26,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2976 states to 2976 states and 7672 transitions. [2021-05-21 23:54:26,391 INFO L78 Accepts]: Start accepts. Automaton has 2976 states and 7672 transitions. Word has length 119 [2021-05-21 23:54:26,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:54:26,391 INFO L482 AbstractCegarLoop]: Abstraction has 2976 states and 7672 transitions. [2021-05-21 23:54:26,391 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:26,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2976 states and 7672 transitions. [2021-05-21 23:54:26,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:54:26,394 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:54:26,394 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:54:26,394 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-05-21 23:54:26,394 INFO L430 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:54:26,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:54:26,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1899470451, now seen corresponding path program 103 times [2021-05-21 23:54:26,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:54:26,395 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433262081] [2021-05-21 23:54:26,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:54:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:54:27,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:54:27,001 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:54:27,001 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433262081] [2021-05-21 23:54:27,001 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433262081] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:54:27,001 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:54:27,001 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:54:27,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604551148] [2021-05-21 23:54:27,001 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:54:27,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:54:27,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:54:27,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:54:27,002 INFO L87 Difference]: Start difference. First operand 2976 states and 7672 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:29,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:54:29,196 INFO L93 Difference]: Finished difference Result 3241 states and 8172 transitions. [2021-05-21 23:54:29,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:54:29,196 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:54:29,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:54:29,199 INFO L225 Difference]: With dead ends: 3241 [2021-05-21 23:54:29,199 INFO L226 Difference]: Without dead ends: 3008 [2021-05-21 23:54:29,200 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 1901.6ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:54:29,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2021-05-21 23:54:29,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 2968. [2021-05-21 23:54:29,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2968 states, 2967 states have (on average 2.5803842264914056) internal successors, (7656), 2967 states have internal predecessors, (7656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:29,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2968 states to 2968 states and 7656 transitions. [2021-05-21 23:54:29,229 INFO L78 Accepts]: Start accepts. Automaton has 2968 states and 7656 transitions. Word has length 119 [2021-05-21 23:54:29,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:54:29,230 INFO L482 AbstractCegarLoop]: Abstraction has 2968 states and 7656 transitions. [2021-05-21 23:54:29,230 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:29,230 INFO L276 IsEmpty]: Start isEmpty. Operand 2968 states and 7656 transitions. [2021-05-21 23:54:29,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:54:29,232 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:54:29,232 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:54:29,232 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-05-21 23:54:29,232 INFO L430 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:54:29,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:54:29,232 INFO L82 PathProgramCache]: Analyzing trace with hash 167118335, now seen corresponding path program 104 times [2021-05-21 23:54:29,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:54:29,232 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221885811] [2021-05-21 23:54:29,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:54:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:54:29,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:54:29,851 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:54:29,851 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221885811] [2021-05-21 23:54:29,851 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221885811] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:54:29,851 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:54:29,851 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:54:29,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739702965] [2021-05-21 23:54:29,851 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:54:29,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:54:29,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:54:29,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:54:29,852 INFO L87 Difference]: Start difference. First operand 2968 states and 7656 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:31,015 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-05-21 23:54:31,217 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-05-21 23:54:32,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:54:32,094 INFO L93 Difference]: Finished difference Result 3233 states and 8171 transitions. [2021-05-21 23:54:32,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:54:32,095 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:54:32,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:54:32,097 INFO L225 Difference]: With dead ends: 3233 [2021-05-21 23:54:32,097 INFO L226 Difference]: Without dead ends: 3008 [2021-05-21 23:54:32,098 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 2000.4ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:54:32,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2021-05-21 23:54:32,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 2976. [2021-05-21 23:54:32,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2976 states, 2975 states have (on average 2.5788235294117645) internal successors, (7672), 2975 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:32,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2976 states to 2976 states and 7672 transitions. [2021-05-21 23:54:32,126 INFO L78 Accepts]: Start accepts. Automaton has 2976 states and 7672 transitions. Word has length 119 [2021-05-21 23:54:32,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:54:32,126 INFO L482 AbstractCegarLoop]: Abstraction has 2976 states and 7672 transitions. [2021-05-21 23:54:32,127 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:32,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2976 states and 7672 transitions. [2021-05-21 23:54:32,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:54:32,129 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:54:32,129 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:54:32,129 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-05-21 23:54:32,129 INFO L430 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:54:32,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:54:32,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1293526919, now seen corresponding path program 105 times [2021-05-21 23:54:32,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:54:32,129 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570634689] [2021-05-21 23:54:32,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:54:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:54:32,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:54:32,762 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:54:32,762 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570634689] [2021-05-21 23:54:32,763 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570634689] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:54:32,763 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:54:32,763 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:54:32,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891683099] [2021-05-21 23:54:32,763 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:54:32,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:54:32,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:54:32,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:54:32,763 INFO L87 Difference]: Start difference. First operand 2976 states and 7672 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:34,095 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-05-21 23:54:34,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:54:34,940 INFO L93 Difference]: Finished difference Result 3221 states and 8142 transitions. [2021-05-21 23:54:34,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:54:34,940 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:54:34,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:54:34,943 INFO L225 Difference]: With dead ends: 3221 [2021-05-21 23:54:34,943 INFO L226 Difference]: Without dead ends: 2992 [2021-05-21 23:54:34,944 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 1931.6ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:54:34,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2021-05-21 23:54:34,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 2984. [2021-05-21 23:54:34,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2984 states, 2983 states have (on average 2.5745893395910158) internal successors, (7680), 2983 states have internal predecessors, (7680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:34,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2984 states to 2984 states and 7680 transitions. [2021-05-21 23:54:34,971 INFO L78 Accepts]: Start accepts. Automaton has 2984 states and 7680 transitions. Word has length 119 [2021-05-21 23:54:34,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:54:34,972 INFO L482 AbstractCegarLoop]: Abstraction has 2984 states and 7680 transitions. [2021-05-21 23:54:34,972 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:34,972 INFO L276 IsEmpty]: Start isEmpty. Operand 2984 states and 7680 transitions. [2021-05-21 23:54:34,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:54:34,974 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:54:34,974 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:54:34,974 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-05-21 23:54:34,974 INFO L430 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:54:34,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:54:34,974 INFO L82 PathProgramCache]: Analyzing trace with hash 636827677, now seen corresponding path program 106 times [2021-05-21 23:54:34,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:54:34,974 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787689723] [2021-05-21 23:54:34,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:54:34,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:54:35,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:54:35,591 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:54:35,591 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787689723] [2021-05-21 23:54:35,591 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787689723] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:54:35,592 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:54:35,592 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:54:35,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916514863] [2021-05-21 23:54:35,592 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:54:35,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:54:35,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:54:35,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:54:35,592 INFO L87 Difference]: Start difference. First operand 2984 states and 7680 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:37,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:54:37,901 INFO L93 Difference]: Finished difference Result 3319 states and 8344 transitions. [2021-05-21 23:54:37,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-21 23:54:37,901 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:54:37,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:54:37,904 INFO L225 Difference]: With dead ends: 3319 [2021-05-21 23:54:37,904 INFO L226 Difference]: Without dead ends: 3085 [2021-05-21 23:54:37,905 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 1995.6ms TimeCoverageRelationStatistics Valid=451, Invalid=2305, Unknown=0, NotChecked=0, Total=2756 [2021-05-21 23:54:37,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3085 states. [2021-05-21 23:54:37,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3085 to 2988. [2021-05-21 23:54:37,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2988 states, 2987 states have (on average 2.573150318044861) internal successors, (7686), 2987 states have internal predecessors, (7686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:37,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2988 states to 2988 states and 7686 transitions. [2021-05-21 23:54:37,937 INFO L78 Accepts]: Start accepts. Automaton has 2988 states and 7686 transitions. Word has length 119 [2021-05-21 23:54:37,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:54:37,937 INFO L482 AbstractCegarLoop]: Abstraction has 2988 states and 7686 transitions. [2021-05-21 23:54:37,938 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:37,938 INFO L276 IsEmpty]: Start isEmpty. Operand 2988 states and 7686 transitions. [2021-05-21 23:54:37,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:54:37,940 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:54:37,940 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:54:37,940 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-05-21 23:54:37,940 INFO L430 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:54:37,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:54:37,940 INFO L82 PathProgramCache]: Analyzing trace with hash 223059281, now seen corresponding path program 107 times [2021-05-21 23:54:37,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:54:37,940 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679528450] [2021-05-21 23:54:37,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:54:37,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:54:38,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:54:38,540 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:54:38,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679528450] [2021-05-21 23:54:38,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679528450] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:54:38,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:54:38,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:54:38,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763358813] [2021-05-21 23:54:38,541 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:54:38,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:54:38,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:54:38,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:54:38,541 INFO L87 Difference]: Start difference. First operand 2988 states and 7686 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:39,766 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-05-21 23:54:40,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:54:40,601 INFO L93 Difference]: Finished difference Result 3201 states and 8092 transitions. [2021-05-21 23:54:40,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:54:40,601 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:54:40,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:54:40,604 INFO L225 Difference]: With dead ends: 3201 [2021-05-21 23:54:40,604 INFO L226 Difference]: Without dead ends: 2940 [2021-05-21 23:54:40,604 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 1895.9ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:54:40,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2021-05-21 23:54:40,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 2940. [2021-05-21 23:54:40,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2940 states, 2939 states have (on average 2.586594079618918) internal successors, (7602), 2939 states have internal predecessors, (7602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:40,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2940 states to 2940 states and 7602 transitions. [2021-05-21 23:54:40,632 INFO L78 Accepts]: Start accepts. Automaton has 2940 states and 7602 transitions. Word has length 119 [2021-05-21 23:54:40,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:54:40,632 INFO L482 AbstractCegarLoop]: Abstraction has 2940 states and 7602 transitions. [2021-05-21 23:54:40,632 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:40,632 INFO L276 IsEmpty]: Start isEmpty. Operand 2940 states and 7602 transitions. [2021-05-21 23:54:40,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:54:40,634 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:54:40,634 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:54:40,634 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-05-21 23:54:40,634 INFO L430 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:54:40,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:54:40,635 INFO L82 PathProgramCache]: Analyzing trace with hash -2120060335, now seen corresponding path program 108 times [2021-05-21 23:54:40,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:54:40,635 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401462591] [2021-05-21 23:54:40,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:54:40,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:54:41,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:54:41,276 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:54:41,276 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401462591] [2021-05-21 23:54:41,276 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401462591] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:54:41,276 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:54:41,276 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:54:41,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262830512] [2021-05-21 23:54:41,277 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:54:41,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:54:41,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:54:41,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:54:41,277 INFO L87 Difference]: Start difference. First operand 2940 states and 7602 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:42,487 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-05-21 23:54:42,709 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-05-21 23:54:43,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:54:43,612 INFO L93 Difference]: Finished difference Result 3255 states and 8264 transitions. [2021-05-21 23:54:43,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:54:43,612 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:54:43,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:54:43,615 INFO L225 Difference]: With dead ends: 3255 [2021-05-21 23:54:43,615 INFO L226 Difference]: Without dead ends: 3102 [2021-05-21 23:54:43,615 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2019.6ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:54:43,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3102 states. [2021-05-21 23:54:43,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3102 to 2980. [2021-05-21 23:54:43,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2980 states, 2979 states have (on average 2.582074521651561) internal successors, (7692), 2979 states have internal predecessors, (7692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:43,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2980 states to 2980 states and 7692 transitions. [2021-05-21 23:54:43,644 INFO L78 Accepts]: Start accepts. Automaton has 2980 states and 7692 transitions. Word has length 119 [2021-05-21 23:54:43,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:54:43,644 INFO L482 AbstractCegarLoop]: Abstraction has 2980 states and 7692 transitions. [2021-05-21 23:54:43,644 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:43,644 INFO L276 IsEmpty]: Start isEmpty. Operand 2980 states and 7692 transitions. [2021-05-21 23:54:43,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:54:43,646 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:54:43,646 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:54:43,646 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-05-21 23:54:43,646 INFO L430 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:54:43,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:54:43,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1600699565, now seen corresponding path program 109 times [2021-05-21 23:54:43,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:54:43,647 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716735964] [2021-05-21 23:54:43,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:54:43,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:54:44,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:54:44,325 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:54:44,325 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716735964] [2021-05-21 23:54:44,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716735964] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:54:44,325 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:54:44,325 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:54:44,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305096294] [2021-05-21 23:54:44,325 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:54:44,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:54:44,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:54:44,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:54:44,326 INFO L87 Difference]: Start difference. First operand 2980 states and 7692 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:45,517 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-05-21 23:54:45,658 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-05-21 23:54:46,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:54:46,723 INFO L93 Difference]: Finished difference Result 3251 states and 8252 transitions. [2021-05-21 23:54:46,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-21 23:54:46,723 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:54:46,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:54:46,726 INFO L225 Difference]: With dead ends: 3251 [2021-05-21 23:54:46,726 INFO L226 Difference]: Without dead ends: 3104 [2021-05-21 23:54:46,726 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 2245.8ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-05-21 23:54:46,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2021-05-21 23:54:46,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 2982. [2021-05-21 23:54:46,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2982 states, 2981 states have (on average 2.581348540758135) internal successors, (7695), 2981 states have internal predecessors, (7695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:46,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2982 states to 2982 states and 7695 transitions. [2021-05-21 23:54:46,757 INFO L78 Accepts]: Start accepts. Automaton has 2982 states and 7695 transitions. Word has length 119 [2021-05-21 23:54:46,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:54:46,757 INFO L482 AbstractCegarLoop]: Abstraction has 2982 states and 7695 transitions. [2021-05-21 23:54:46,757 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:46,758 INFO L276 IsEmpty]: Start isEmpty. Operand 2982 states and 7695 transitions. [2021-05-21 23:54:46,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:54:46,760 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:54:46,760 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:54:46,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-05-21 23:54:46,760 INFO L430 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:54:46,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:54:46,761 INFO L82 PathProgramCache]: Analyzing trace with hash 379152239, now seen corresponding path program 110 times [2021-05-21 23:54:46,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:54:46,761 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857381347] [2021-05-21 23:54:46,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:54:46,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:54:47,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:54:47,452 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:54:47,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857381347] [2021-05-21 23:54:47,452 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857381347] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:54:47,452 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:54:47,452 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:54:47,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662555773] [2021-05-21 23:54:47,452 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:54:47,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:54:47,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:54:47,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:54:47,453 INFO L87 Difference]: Start difference. First operand 2982 states and 7695 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:48,744 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-05-21 23:54:49,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:54:49,864 INFO L93 Difference]: Finished difference Result 3260 states and 8272 transitions. [2021-05-21 23:54:49,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-21 23:54:49,864 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:54:49,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:54:49,867 INFO L225 Difference]: With dead ends: 3260 [2021-05-21 23:54:49,867 INFO L226 Difference]: Without dead ends: 3092 [2021-05-21 23:54:49,867 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 2172.9ms TimeCoverageRelationStatistics Valid=446, Invalid=2310, Unknown=0, NotChecked=0, Total=2756 [2021-05-21 23:54:49,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3092 states. [2021-05-21 23:54:49,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3092 to 2974. [2021-05-21 23:54:49,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2974 states, 2973 states have (on average 2.580894719138917) internal successors, (7673), 2973 states have internal predecessors, (7673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:49,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 7673 transitions. [2021-05-21 23:54:49,898 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 7673 transitions. Word has length 119 [2021-05-21 23:54:49,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:54:49,898 INFO L482 AbstractCegarLoop]: Abstraction has 2974 states and 7673 transitions. [2021-05-21 23:54:49,898 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:49,898 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 7673 transitions. [2021-05-21 23:54:49,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:54:49,900 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:54:49,900 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:54:49,900 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-05-21 23:54:49,900 INFO L430 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:54:49,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:54:49,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1257337423, now seen corresponding path program 111 times [2021-05-21 23:54:49,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:54:49,900 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134347214] [2021-05-21 23:54:49,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:54:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:54:50,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:54:50,565 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:54:50,565 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134347214] [2021-05-21 23:54:50,565 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134347214] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:54:50,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:54:50,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:54:50,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210856596] [2021-05-21 23:54:50,566 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:54:50,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:54:50,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:54:50,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:54:50,566 INFO L87 Difference]: Start difference. First operand 2974 states and 7673 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:52,019 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-05-21 23:54:53,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:54:53,184 INFO L93 Difference]: Finished difference Result 3293 states and 8348 transitions. [2021-05-21 23:54:53,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-21 23:54:53,184 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:54:53,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:54:53,187 INFO L225 Difference]: With dead ends: 3293 [2021-05-21 23:54:53,187 INFO L226 Difference]: Without dead ends: 3146 [2021-05-21 23:54:53,187 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 2316.4ms TimeCoverageRelationStatistics Valid=499, Invalid=2471, Unknown=0, NotChecked=0, Total=2970 [2021-05-21 23:54:53,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3146 states. [2021-05-21 23:54:53,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3146 to 2982. [2021-05-21 23:54:53,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2982 states, 2981 states have (on average 2.580006709158001) internal successors, (7691), 2981 states have internal predecessors, (7691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:53,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2982 states to 2982 states and 7691 transitions. [2021-05-21 23:54:53,218 INFO L78 Accepts]: Start accepts. Automaton has 2982 states and 7691 transitions. Word has length 119 [2021-05-21 23:54:53,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:54:53,218 INFO L482 AbstractCegarLoop]: Abstraction has 2982 states and 7691 transitions. [2021-05-21 23:54:53,219 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:53,219 INFO L276 IsEmpty]: Start isEmpty. Operand 2982 states and 7691 transitions. [2021-05-21 23:54:53,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:54:53,221 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:54:53,221 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:54:53,221 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-05-21 23:54:53,221 INFO L430 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:54:53,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:54:53,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1057778069, now seen corresponding path program 112 times [2021-05-21 23:54:53,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:54:53,221 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114778235] [2021-05-21 23:54:53,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:54:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:54:53,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:54:53,899 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:54:53,899 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114778235] [2021-05-21 23:54:53,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114778235] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:54:53,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:54:53,899 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:54:53,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718595956] [2021-05-21 23:54:53,899 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:54:53,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:54:53,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:54:53,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:54:53,900 INFO L87 Difference]: Start difference. First operand 2982 states and 7691 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:56,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:54:56,423 INFO L93 Difference]: Finished difference Result 3306 states and 8376 transitions. [2021-05-21 23:54:56,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-21 23:54:56,424 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:54:56,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:54:56,427 INFO L225 Difference]: With dead ends: 3306 [2021-05-21 23:54:56,427 INFO L226 Difference]: Without dead ends: 3144 [2021-05-21 23:54:56,427 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 2351.3ms TimeCoverageRelationStatistics Valid=483, Invalid=2487, Unknown=0, NotChecked=0, Total=2970 [2021-05-21 23:54:56,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2021-05-21 23:54:56,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 2980. [2021-05-21 23:54:56,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2980 states, 2979 states have (on average 2.580060422960725) internal successors, (7686), 2979 states have internal predecessors, (7686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:56,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2980 states to 2980 states and 7686 transitions. [2021-05-21 23:54:56,457 INFO L78 Accepts]: Start accepts. Automaton has 2980 states and 7686 transitions. Word has length 119 [2021-05-21 23:54:56,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:54:56,457 INFO L482 AbstractCegarLoop]: Abstraction has 2980 states and 7686 transitions. [2021-05-21 23:54:56,457 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:56,458 INFO L276 IsEmpty]: Start isEmpty. Operand 2980 states and 7686 transitions. [2021-05-21 23:54:56,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:54:56,460 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:54:56,460 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:54:56,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-05-21 23:54:56,460 INFO L430 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:54:56,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:54:56,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1927565425, now seen corresponding path program 113 times [2021-05-21 23:54:56,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:54:56,460 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895768476] [2021-05-21 23:54:56,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:54:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:54:57,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:54:57,140 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:54:57,140 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895768476] [2021-05-21 23:54:57,140 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895768476] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:54:57,140 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:54:57,140 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:54:57,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261182157] [2021-05-21 23:54:57,140 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:54:57,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:54:57,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:54:57,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:54:57,140 INFO L87 Difference]: Start difference. First operand 2980 states and 7686 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:59,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:54:59,848 INFO L93 Difference]: Finished difference Result 3539 states and 8837 transitions. [2021-05-21 23:54:59,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-21 23:54:59,848 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:54:59,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:54:59,851 INFO L225 Difference]: With dead ends: 3539 [2021-05-21 23:54:59,851 INFO L226 Difference]: Without dead ends: 3310 [2021-05-21 23:54:59,851 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 2462.8ms TimeCoverageRelationStatistics Valid=547, Invalid=2759, Unknown=0, NotChecked=0, Total=3306 [2021-05-21 23:54:59,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3310 states. [2021-05-21 23:54:59,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3310 to 2956. [2021-05-21 23:54:59,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2956 states, 2955 states have (on average 2.579357021996616) internal successors, (7622), 2955 states have internal predecessors, (7622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:59,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2956 states to 2956 states and 7622 transitions. [2021-05-21 23:54:59,880 INFO L78 Accepts]: Start accepts. Automaton has 2956 states and 7622 transitions. Word has length 119 [2021-05-21 23:54:59,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:54:59,881 INFO L482 AbstractCegarLoop]: Abstraction has 2956 states and 7622 transitions. [2021-05-21 23:54:59,881 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:54:59,881 INFO L276 IsEmpty]: Start isEmpty. Operand 2956 states and 7622 transitions. [2021-05-21 23:54:59,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:54:59,883 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:54:59,883 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:54:59,883 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-05-21 23:54:59,883 INFO L430 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:54:59,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:54:59,883 INFO L82 PathProgramCache]: Analyzing trace with hash -738424267, now seen corresponding path program 3 times [2021-05-21 23:54:59,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:54:59,883 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917800327] [2021-05-21 23:54:59,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:54:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:55:00,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:55:00,030 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:55:00,030 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917800327] [2021-05-21 23:55:00,030 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917800327] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:55:00,030 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:55:00,030 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-05-21 23:55:00,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622309748] [2021-05-21 23:55:00,030 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 23:55:00,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:55:00,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 23:55:00,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:55:00,031 INFO L87 Difference]: Start difference. First operand 2956 states and 7622 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:00,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:55:00,290 INFO L93 Difference]: Finished difference Result 3247 states and 8153 transitions. [2021-05-21 23:55:00,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-21 23:55:00,290 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:55:00,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:55:00,293 INFO L225 Difference]: With dead ends: 3247 [2021-05-21 23:55:00,293 INFO L226 Difference]: Without dead ends: 3247 [2021-05-21 23:55:00,293 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 201.3ms TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2021-05-21 23:55:00,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3247 states. [2021-05-21 23:55:00,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3247 to 3024. [2021-05-21 23:55:00,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3024 states, 3023 states have (on average 2.5689712206417465) internal successors, (7766), 3023 states have internal predecessors, (7766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:00,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3024 states to 3024 states and 7766 transitions. [2021-05-21 23:55:00,325 INFO L78 Accepts]: Start accepts. Automaton has 3024 states and 7766 transitions. Word has length 119 [2021-05-21 23:55:00,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:55:00,325 INFO L482 AbstractCegarLoop]: Abstraction has 3024 states and 7766 transitions. [2021-05-21 23:55:00,325 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:00,326 INFO L276 IsEmpty]: Start isEmpty. Operand 3024 states and 7766 transitions. [2021-05-21 23:55:00,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:55:00,328 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:55:00,328 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:55:00,328 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-05-21 23:55:00,328 INFO L430 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:55:00,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:55:00,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1044605369, now seen corresponding path program 114 times [2021-05-21 23:55:00,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:55:00,328 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901502435] [2021-05-21 23:55:00,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:55:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:55:00,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:55:00,998 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:55:00,998 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901502435] [2021-05-21 23:55:00,998 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901502435] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:55:00,998 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:55:00,998 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:55:00,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246014483] [2021-05-21 23:55:00,998 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:55:00,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:55:00,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:55:00,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:55:00,999 INFO L87 Difference]: Start difference. First operand 3024 states and 7766 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:03,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:55:03,172 INFO L93 Difference]: Finished difference Result 3327 states and 8369 transitions. [2021-05-21 23:55:03,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:55:03,173 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:55:03,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:55:03,176 INFO L225 Difference]: With dead ends: 3327 [2021-05-21 23:55:03,176 INFO L226 Difference]: Without dead ends: 3085 [2021-05-21 23:55:03,176 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 2001.4ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:55:03,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3085 states. [2021-05-21 23:55:03,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3085 to 2969. [2021-05-21 23:55:03,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2969 states, 2968 states have (on average 2.5785040431266846) internal successors, (7653), 2968 states have internal predecessors, (7653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:03,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2969 states to 2969 states and 7653 transitions. [2021-05-21 23:55:03,206 INFO L78 Accepts]: Start accepts. Automaton has 2969 states and 7653 transitions. Word has length 119 [2021-05-21 23:55:03,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:55:03,206 INFO L482 AbstractCegarLoop]: Abstraction has 2969 states and 7653 transitions. [2021-05-21 23:55:03,206 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:03,206 INFO L276 IsEmpty]: Start isEmpty. Operand 2969 states and 7653 transitions. [2021-05-21 23:55:03,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:55:03,208 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:55:03,208 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:55:03,208 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-05-21 23:55:03,209 INFO L430 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:55:03,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:55:03,209 INFO L82 PathProgramCache]: Analyzing trace with hash -620934893, now seen corresponding path program 115 times [2021-05-21 23:55:03,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:55:03,209 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437378524] [2021-05-21 23:55:03,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:55:03,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:55:03,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:55:03,895 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:55:03,895 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437378524] [2021-05-21 23:55:03,895 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437378524] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:55:03,895 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:55:03,895 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:55:03,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083450841] [2021-05-21 23:55:03,896 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:55:03,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:55:03,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:55:03,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:55:03,896 INFO L87 Difference]: Start difference. First operand 2969 states and 7653 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:04,984 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-05-21 23:55:05,151 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-05-21 23:55:05,387 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-05-21 23:55:06,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:55:06,298 INFO L93 Difference]: Finished difference Result 3281 states and 8272 transitions. [2021-05-21 23:55:06,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:55:06,298 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:55:06,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:55:06,300 INFO L225 Difference]: With dead ends: 3281 [2021-05-21 23:55:06,300 INFO L226 Difference]: Without dead ends: 3058 [2021-05-21 23:55:06,301 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2210.3ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:55:06,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3058 states. [2021-05-21 23:55:06,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3058 to 2983. [2021-05-21 23:55:06,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2983 states, 2982 states have (on average 2.573775989268947) internal successors, (7675), 2982 states have internal predecessors, (7675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:06,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2983 states to 2983 states and 7675 transitions. [2021-05-21 23:55:06,332 INFO L78 Accepts]: Start accepts. Automaton has 2983 states and 7675 transitions. Word has length 119 [2021-05-21 23:55:06,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:55:06,332 INFO L482 AbstractCegarLoop]: Abstraction has 2983 states and 7675 transitions. [2021-05-21 23:55:06,332 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:06,332 INFO L276 IsEmpty]: Start isEmpty. Operand 2983 states and 7675 transitions. [2021-05-21 23:55:06,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:55:06,335 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:55:06,335 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:55:06,335 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-05-21 23:55:06,335 INFO L430 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:55:06,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:55:06,335 INFO L82 PathProgramCache]: Analyzing trace with hash -101574123, now seen corresponding path program 116 times [2021-05-21 23:55:06,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:55:06,335 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101705760] [2021-05-21 23:55:06,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:55:06,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:55:07,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:55:07,047 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:55:07,047 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101705760] [2021-05-21 23:55:07,047 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101705760] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:55:07,047 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:55:07,047 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:55:07,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488159803] [2021-05-21 23:55:07,048 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:55:07,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:55:07,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:55:07,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:55:07,048 INFO L87 Difference]: Start difference. First operand 2983 states and 7675 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:08,379 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-05-21 23:55:09,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:55:09,419 INFO L93 Difference]: Finished difference Result 3263 states and 8232 transitions. [2021-05-21 23:55:09,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-21 23:55:09,420 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:55:09,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:55:09,422 INFO L225 Difference]: With dead ends: 3263 [2021-05-21 23:55:09,422 INFO L226 Difference]: Without dead ends: 3050 [2021-05-21 23:55:09,422 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 2262.9ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-05-21 23:55:09,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2021-05-21 23:55:09,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 2986. [2021-05-21 23:55:09,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2986 states, 2985 states have (on average 2.5721943048576215) internal successors, (7678), 2985 states have internal predecessors, (7678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:09,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 7678 transitions. [2021-05-21 23:55:09,450 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 7678 transitions. Word has length 119 [2021-05-21 23:55:09,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:55:09,450 INFO L482 AbstractCegarLoop]: Abstraction has 2986 states and 7678 transitions. [2021-05-21 23:55:09,450 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:09,450 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 7678 transitions. [2021-05-21 23:55:09,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:55:09,452 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:55:09,452 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:55:09,452 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-05-21 23:55:09,452 INFO L430 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:55:09,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:55:09,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1878277681, now seen corresponding path program 117 times [2021-05-21 23:55:09,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:55:09,453 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610867092] [2021-05-21 23:55:09,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:55:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:55:10,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:55:10,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:55:10,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610867092] [2021-05-21 23:55:10,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610867092] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:55:10,113 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:55:10,114 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:55:10,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280961504] [2021-05-21 23:55:10,114 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:55:10,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:55:10,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:55:10,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:55:10,114 INFO L87 Difference]: Start difference. First operand 2986 states and 7678 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:11,138 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-05-21 23:55:12,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:55:12,466 INFO L93 Difference]: Finished difference Result 3345 states and 8401 transitions. [2021-05-21 23:55:12,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-21 23:55:12,467 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:55:12,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:55:12,469 INFO L225 Difference]: With dead ends: 3345 [2021-05-21 23:55:12,470 INFO L226 Difference]: Without dead ends: 3097 [2021-05-21 23:55:12,470 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 2114.6ms TimeCoverageRelationStatistics Valid=446, Invalid=2310, Unknown=0, NotChecked=0, Total=2756 [2021-05-21 23:55:12,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3097 states. [2021-05-21 23:55:12,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3097 to 2967. [2021-05-21 23:55:12,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2967 states, 2966 states have (on average 2.5755225893459204) internal successors, (7639), 2966 states have internal predecessors, (7639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:12,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 7639 transitions. [2021-05-21 23:55:12,500 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 7639 transitions. Word has length 119 [2021-05-21 23:55:12,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:55:12,501 INFO L482 AbstractCegarLoop]: Abstraction has 2967 states and 7639 transitions. [2021-05-21 23:55:12,501 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:12,501 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 7639 transitions. [2021-05-21 23:55:12,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:55:12,503 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:55:12,503 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:55:12,503 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-05-21 23:55:12,503 INFO L430 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:55:12,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:55:12,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1919322589, now seen corresponding path program 118 times [2021-05-21 23:55:12,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:55:12,504 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567908376] [2021-05-21 23:55:12,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:55:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:55:13,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:55:13,139 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:55:13,139 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567908376] [2021-05-21 23:55:13,139 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567908376] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:55:13,139 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:55:13,139 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:55:13,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385817548] [2021-05-21 23:55:13,140 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:55:13,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:55:13,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:55:13,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:55:13,140 INFO L87 Difference]: Start difference. First operand 2967 states and 7639 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:14,647 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-05-21 23:55:15,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:55:15,538 INFO L93 Difference]: Finished difference Result 3244 states and 8181 transitions. [2021-05-21 23:55:15,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:55:15,539 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:55:15,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:55:15,541 INFO L225 Difference]: With dead ends: 3244 [2021-05-21 23:55:15,541 INFO L226 Difference]: Without dead ends: 3015 [2021-05-21 23:55:15,541 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 2067.3ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:55:15,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3015 states. [2021-05-21 23:55:15,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3015 to 2961. [2021-05-21 23:55:15,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2961 states, 2960 states have (on average 2.5763513513513514) internal successors, (7626), 2960 states have internal predecessors, (7626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:15,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2961 states to 2961 states and 7626 transitions. [2021-05-21 23:55:15,570 INFO L78 Accepts]: Start accepts. Automaton has 2961 states and 7626 transitions. Word has length 119 [2021-05-21 23:55:15,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:55:15,570 INFO L482 AbstractCegarLoop]: Abstraction has 2961 states and 7626 transitions. [2021-05-21 23:55:15,570 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:15,570 INFO L276 IsEmpty]: Start isEmpty. Operand 2961 states and 7626 transitions. [2021-05-21 23:55:15,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:55:15,572 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:55:15,572 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:55:15,572 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-05-21 23:55:15,572 INFO L430 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:55:15,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:55:15,573 INFO L82 PathProgramCache]: Analyzing trace with hash -309055921, now seen corresponding path program 119 times [2021-05-21 23:55:15,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:55:15,573 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438682454] [2021-05-21 23:55:15,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:55:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:55:16,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:55:16,193 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:55:16,193 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438682454] [2021-05-21 23:55:16,193 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438682454] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:55:16,193 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:55:16,193 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:55:16,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907762832] [2021-05-21 23:55:16,193 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:55:16,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:55:16,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:55:16,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:55:16,194 INFO L87 Difference]: Start difference. First operand 2961 states and 7626 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:17,399 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-05-21 23:55:17,612 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-05-21 23:55:18,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:55:18,536 INFO L93 Difference]: Finished difference Result 3213 states and 8115 transitions. [2021-05-21 23:55:18,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:55:18,536 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:55:18,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:55:18,538 INFO L225 Difference]: With dead ends: 3213 [2021-05-21 23:55:18,538 INFO L226 Difference]: Without dead ends: 2990 [2021-05-21 23:55:18,539 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2057.7ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:55:18,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2021-05-21 23:55:18,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2938. [2021-05-21 23:55:18,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2938 states, 2937 states have (on average 2.5757575757575757) internal successors, (7565), 2937 states have internal predecessors, (7565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:18,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2938 states to 2938 states and 7565 transitions. [2021-05-21 23:55:18,566 INFO L78 Accepts]: Start accepts. Automaton has 2938 states and 7565 transitions. Word has length 119 [2021-05-21 23:55:18,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:55:18,566 INFO L482 AbstractCegarLoop]: Abstraction has 2938 states and 7565 transitions. [2021-05-21 23:55:18,566 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:18,566 INFO L276 IsEmpty]: Start isEmpty. Operand 2938 states and 7565 transitions. [2021-05-21 23:55:18,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:55:18,569 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:55:18,569 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:55:18,569 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-05-21 23:55:18,569 INFO L430 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:55:18,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:55:18,569 INFO L82 PathProgramCache]: Analyzing trace with hash 817352663, now seen corresponding path program 120 times [2021-05-21 23:55:18,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:55:18,569 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105566695] [2021-05-21 23:55:18,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:55:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:55:19,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:55:19,162 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:55:19,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105566695] [2021-05-21 23:55:19,162 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105566695] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:55:19,162 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:55:19,162 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:55:19,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749719993] [2021-05-21 23:55:19,162 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:55:19,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:55:19,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:55:19,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:55:19,163 INFO L87 Difference]: Start difference. First operand 2938 states and 7565 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:20,489 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-05-21 23:55:21,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:55:21,459 INFO L93 Difference]: Finished difference Result 3203 states and 8089 transitions. [2021-05-21 23:55:21,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:55:21,460 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:55:21,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:55:21,462 INFO L225 Difference]: With dead ends: 3203 [2021-05-21 23:55:21,462 INFO L226 Difference]: Without dead ends: 2977 [2021-05-21 23:55:21,463 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 2048.7ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:55:21,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2977 states. [2021-05-21 23:55:21,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2977 to 2939. [2021-05-21 23:55:21,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2939 states, 2938 states have (on average 2.572498298162015) internal successors, (7558), 2938 states have internal predecessors, (7558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:21,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2939 states to 2939 states and 7558 transitions. [2021-05-21 23:55:21,492 INFO L78 Accepts]: Start accepts. Automaton has 2939 states and 7558 transitions. Word has length 119 [2021-05-21 23:55:21,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:55:21,493 INFO L482 AbstractCegarLoop]: Abstraction has 2939 states and 7558 transitions. [2021-05-21 23:55:21,493 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:21,493 INFO L276 IsEmpty]: Start isEmpty. Operand 2939 states and 7558 transitions. [2021-05-21 23:55:21,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:55:21,495 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:55:21,495 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:55:21,495 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-05-21 23:55:21,495 INFO L430 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:55:21,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:55:21,495 INFO L82 PathProgramCache]: Analyzing trace with hash 160653421, now seen corresponding path program 121 times [2021-05-21 23:55:21,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:55:21,495 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41704238] [2021-05-21 23:55:21,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:55:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:55:22,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:55:22,159 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:55:22,160 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41704238] [2021-05-21 23:55:22,160 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41704238] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:55:22,160 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:55:22,160 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:55:22,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759063084] [2021-05-21 23:55:22,160 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:55:22,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:55:22,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:55:22,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:55:22,160 INFO L87 Difference]: Start difference. First operand 2939 states and 7558 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:24,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:55:24,488 INFO L93 Difference]: Finished difference Result 3282 states and 8239 transitions. [2021-05-21 23:55:24,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-21 23:55:24,488 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:55:24,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:55:24,491 INFO L225 Difference]: With dead ends: 3282 [2021-05-21 23:55:24,491 INFO L226 Difference]: Without dead ends: 3048 [2021-05-21 23:55:24,491 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 2035.5ms TimeCoverageRelationStatistics Valid=451, Invalid=2305, Unknown=0, NotChecked=0, Total=2756 [2021-05-21 23:55:24,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3048 states. [2021-05-21 23:55:24,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3048 to 2937. [2021-05-21 23:55:24,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2937 states, 2936 states have (on average 2.5705040871934606) internal successors, (7547), 2936 states have internal predecessors, (7547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:24,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2937 states to 2937 states and 7547 transitions. [2021-05-21 23:55:24,521 INFO L78 Accepts]: Start accepts. Automaton has 2937 states and 7547 transitions. Word has length 119 [2021-05-21 23:55:24,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:55:24,521 INFO L482 AbstractCegarLoop]: Abstraction has 2937 states and 7547 transitions. [2021-05-21 23:55:24,521 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:24,521 INFO L276 IsEmpty]: Start isEmpty. Operand 2937 states and 7547 transitions. [2021-05-21 23:55:24,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:55:24,523 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:55:24,523 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:55:24,523 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-05-21 23:55:24,523 INFO L430 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:55:24,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:55:24,523 INFO L82 PathProgramCache]: Analyzing trace with hash -253114975, now seen corresponding path program 122 times [2021-05-21 23:55:24,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:55:24,524 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091158539] [2021-05-21 23:55:24,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:55:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:55:25,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:55:25,187 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:55:25,187 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091158539] [2021-05-21 23:55:25,187 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091158539] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:55:25,187 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:55:25,187 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:55:25,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687409606] [2021-05-21 23:55:25,188 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:55:25,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:55:25,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:55:25,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:55:25,188 INFO L87 Difference]: Start difference. First operand 2937 states and 7547 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:26,553 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-05-21 23:55:27,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:55:27,469 INFO L93 Difference]: Finished difference Result 3149 states and 7950 transitions. [2021-05-21 23:55:27,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:55:27,469 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:55:27,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:55:27,472 INFO L225 Difference]: With dead ends: 3149 [2021-05-21 23:55:27,472 INFO L226 Difference]: Without dead ends: 2826 [2021-05-21 23:55:27,472 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2074.7ms TimeCoverageRelationStatistics Valid=444, Invalid=2208, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:55:27,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2826 states. [2021-05-21 23:55:27,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2826 to 2794. [2021-05-21 23:55:27,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 2793 states have (on average 2.594343000358038) internal successors, (7246), 2793 states have internal predecessors, (7246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:27,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 7246 transitions. [2021-05-21 23:55:27,500 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 7246 transitions. Word has length 119 [2021-05-21 23:55:27,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:55:27,500 INFO L482 AbstractCegarLoop]: Abstraction has 2794 states and 7246 transitions. [2021-05-21 23:55:27,500 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:27,501 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 7246 transitions. [2021-05-21 23:55:27,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:55:27,502 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:55:27,503 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:55:27,503 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-05-21 23:55:27,503 INFO L430 AbstractCegarLoop]: === Iteration 164 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:55:27,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:55:27,503 INFO L82 PathProgramCache]: Analyzing trace with hash 832131385, now seen corresponding path program 123 times [2021-05-21 23:55:27,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:55:27,503 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892634609] [2021-05-21 23:55:27,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:55:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:55:27,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:55:27,686 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:55:27,686 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892634609] [2021-05-21 23:55:27,686 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892634609] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:55:27,686 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:55:27,686 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-05-21 23:55:27,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363716180] [2021-05-21 23:55:27,686 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 23:55:27,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:55:27,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 23:55:27,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:55:27,687 INFO L87 Difference]: Start difference. First operand 2794 states and 7246 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:27,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:55:27,961 INFO L93 Difference]: Finished difference Result 3481 states and 8729 transitions. [2021-05-21 23:55:27,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 23:55:27,962 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:55:27,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:55:27,965 INFO L225 Difference]: With dead ends: 3481 [2021-05-21 23:55:27,965 INFO L226 Difference]: Without dead ends: 3481 [2021-05-21 23:55:27,965 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 261.4ms TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-05-21 23:55:27,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3481 states. [2021-05-21 23:55:27,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3481 to 2850. [2021-05-21 23:55:27,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2850 states, 2849 states have (on average 2.5805545805545806) internal successors, (7352), 2849 states have internal predecessors, (7352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:27,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2850 states to 2850 states and 7352 transitions. [2021-05-21 23:55:27,998 INFO L78 Accepts]: Start accepts. Automaton has 2850 states and 7352 transitions. Word has length 119 [2021-05-21 23:55:27,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:55:27,998 INFO L482 AbstractCegarLoop]: Abstraction has 2850 states and 7352 transitions. [2021-05-21 23:55:27,998 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:27,998 INFO L276 IsEmpty]: Start isEmpty. Operand 2850 states and 7352 transitions. [2021-05-21 23:55:28,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:55:28,000 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:55:28,000 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:55:28,000 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-05-21 23:55:28,000 INFO L430 AbstractCegarLoop]: === Iteration 165 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:55:28,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:55:28,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1749086267, now seen corresponding path program 124 times [2021-05-21 23:55:28,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:55:28,001 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769118671] [2021-05-21 23:55:28,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:55:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:55:28,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:55:28,611 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:55:28,611 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769118671] [2021-05-21 23:55:28,611 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769118671] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:55:28,611 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:55:28,611 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:55:28,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431626451] [2021-05-21 23:55:28,611 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:55:28,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:55:28,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:55:28,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:55:28,612 INFO L87 Difference]: Start difference. First operand 2850 states and 7352 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:31,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:55:31,686 INFO L93 Difference]: Finished difference Result 4555 states and 11592 transitions. [2021-05-21 23:55:31,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:55:31,687 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:55:31,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:55:31,690 INFO L225 Difference]: With dead ends: 4555 [2021-05-21 23:55:31,690 INFO L226 Difference]: Without dead ends: 4360 [2021-05-21 23:55:31,690 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2540.4ms TimeCoverageRelationStatistics Valid=575, Invalid=2965, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:55:31,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4360 states. [2021-05-21 23:55:31,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4360 to 3366. [2021-05-21 23:55:31,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3366 states, 3365 states have (on average 2.613372956909361) internal successors, (8794), 3365 states have internal predecessors, (8794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:31,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3366 states to 3366 states and 8794 transitions. [2021-05-21 23:55:31,732 INFO L78 Accepts]: Start accepts. Automaton has 3366 states and 8794 transitions. Word has length 119 [2021-05-21 23:55:31,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:55:31,733 INFO L482 AbstractCegarLoop]: Abstraction has 3366 states and 8794 transitions. [2021-05-21 23:55:31,733 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:31,733 INFO L276 IsEmpty]: Start isEmpty. Operand 3366 states and 8794 transitions. [2021-05-21 23:55:31,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:55:31,736 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:55:31,736 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:55:31,736 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-05-21 23:55:31,736 INFO L430 AbstractCegarLoop]: === Iteration 166 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:55:31,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:55:31,736 INFO L82 PathProgramCache]: Analyzing trace with hash -90610915, now seen corresponding path program 4 times [2021-05-21 23:55:31,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:55:31,736 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550553445] [2021-05-21 23:55:31,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:55:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:55:32,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:55:32,210 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:55:32,210 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550553445] [2021-05-21 23:55:32,210 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550553445] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:55:32,210 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:55:32,210 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-05-21 23:55:32,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070924848] [2021-05-21 23:55:32,210 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-05-21 23:55:32,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:55:32,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-05-21 23:55:32,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2021-05-21 23:55:32,211 INFO L87 Difference]: Start difference. First operand 3366 states and 8794 transitions. Second operand has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:34,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:55:34,231 INFO L93 Difference]: Finished difference Result 3704 states and 9432 transitions. [2021-05-21 23:55:34,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-21 23:55:34,231 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:55:34,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:55:34,234 INFO L225 Difference]: With dead ends: 3704 [2021-05-21 23:55:34,234 INFO L226 Difference]: Without dead ends: 3623 [2021-05-21 23:55:34,235 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 559 ImplicationChecksByTransitivity, 1522.6ms TimeCoverageRelationStatistics Valid=736, Invalid=2344, Unknown=0, NotChecked=0, Total=3080 [2021-05-21 23:55:34,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3623 states. [2021-05-21 23:55:34,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3623 to 3351. [2021-05-21 23:55:34,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3351 states, 3350 states have (on average 2.6292537313432836) internal successors, (8808), 3350 states have internal predecessors, (8808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:34,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3351 states to 3351 states and 8808 transitions. [2021-05-21 23:55:34,270 INFO L78 Accepts]: Start accepts. Automaton has 3351 states and 8808 transitions. Word has length 119 [2021-05-21 23:55:34,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:55:34,270 INFO L482 AbstractCegarLoop]: Abstraction has 3351 states and 8808 transitions. [2021-05-21 23:55:34,270 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 5.409090909090909) internal successors, (119), 22 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:34,270 INFO L276 IsEmpty]: Start isEmpty. Operand 3351 states and 8808 transitions. [2021-05-21 23:55:34,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:55:34,272 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:55:34,273 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:55:34,273 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-05-21 23:55:34,273 INFO L430 AbstractCegarLoop]: === Iteration 167 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:55:34,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:55:34,273 INFO L82 PathProgramCache]: Analyzing trace with hash -2143741377, now seen corresponding path program 125 times [2021-05-21 23:55:34,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:55:34,273 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100554603] [2021-05-21 23:55:34,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:55:34,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:55:34,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:55:34,899 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:55:34,899 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100554603] [2021-05-21 23:55:34,899 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100554603] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:55:34,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:55:34,899 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:55:34,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86067942] [2021-05-21 23:55:34,900 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:55:34,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:55:34,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:55:34,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:55:34,900 INFO L87 Difference]: Start difference. First operand 3351 states and 8808 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:36,805 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-05-21 23:55:38,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:55:38,111 INFO L93 Difference]: Finished difference Result 4631 states and 12019 transitions. [2021-05-21 23:55:38,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:55:38,112 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:55:38,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:55:38,116 INFO L225 Difference]: With dead ends: 4631 [2021-05-21 23:55:38,116 INFO L226 Difference]: Without dead ends: 4240 [2021-05-21 23:55:38,116 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 2730.1ms TimeCoverageRelationStatistics Valid=618, Invalid=2922, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:55:38,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4240 states. [2021-05-21 23:55:38,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4240 to 3411. [2021-05-21 23:55:38,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3411 states, 3410 states have (on average 2.6146627565982405) internal successors, (8916), 3410 states have internal predecessors, (8916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:38,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3411 states to 3411 states and 8916 transitions. [2021-05-21 23:55:38,154 INFO L78 Accepts]: Start accepts. Automaton has 3411 states and 8916 transitions. Word has length 119 [2021-05-21 23:55:38,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:55:38,154 INFO L482 AbstractCegarLoop]: Abstraction has 3411 states and 8916 transitions. [2021-05-21 23:55:38,155 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:38,155 INFO L276 IsEmpty]: Start isEmpty. Operand 3411 states and 8916 transitions. [2021-05-21 23:55:38,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:55:38,157 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:55:38,157 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:55:38,157 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-05-21 23:55:38,157 INFO L430 AbstractCegarLoop]: === Iteration 168 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:55:38,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:55:38,158 INFO L82 PathProgramCache]: Analyzing trace with hash -935316013, now seen corresponding path program 126 times [2021-05-21 23:55:38,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:55:38,158 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972408619] [2021-05-21 23:55:38,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:55:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:55:38,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:55:38,788 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:55:38,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972408619] [2021-05-21 23:55:38,789 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972408619] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:55:38,789 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:55:38,789 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:55:38,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311418915] [2021-05-21 23:55:38,789 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:55:38,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:55:38,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:55:38,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:55:38,789 INFO L87 Difference]: Start difference. First operand 3411 states and 8916 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:39,720 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-05-21 23:55:41,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:55:41,890 INFO L93 Difference]: Finished difference Result 4346 states and 11212 transitions. [2021-05-21 23:55:41,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-21 23:55:41,891 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:55:41,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:55:41,893 INFO L225 Difference]: With dead ends: 4346 [2021-05-21 23:55:41,894 INFO L226 Difference]: Without dead ends: 3916 [2021-05-21 23:55:41,894 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 2717.9ms TimeCoverageRelationStatistics Valid=639, Invalid=3143, Unknown=0, NotChecked=0, Total=3782 [2021-05-21 23:55:41,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3916 states. [2021-05-21 23:55:41,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3087. [2021-05-21 23:55:41,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3087 states, 3086 states have (on average 2.6085547634478288) internal successors, (8050), 3086 states have internal predecessors, (8050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:41,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3087 states to 3087 states and 8050 transitions. [2021-05-21 23:55:41,925 INFO L78 Accepts]: Start accepts. Automaton has 3087 states and 8050 transitions. Word has length 119 [2021-05-21 23:55:41,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:55:41,925 INFO L482 AbstractCegarLoop]: Abstraction has 3087 states and 8050 transitions. [2021-05-21 23:55:41,925 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:41,925 INFO L276 IsEmpty]: Start isEmpty. Operand 3087 states and 8050 transitions. [2021-05-21 23:55:41,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:55:41,928 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:55:41,928 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:55:41,928 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-05-21 23:55:41,928 INFO L430 AbstractCegarLoop]: === Iteration 169 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:55:41,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:55:41,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1756421371, now seen corresponding path program 127 times [2021-05-21 23:55:41,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:55:41,928 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194285354] [2021-05-21 23:55:41,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:55:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:55:42,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:55:42,516 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:55:42,517 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194285354] [2021-05-21 23:55:42,517 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194285354] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:55:42,517 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:55:42,517 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:55:42,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923741385] [2021-05-21 23:55:42,517 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:55:42,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:55:42,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:55:42,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:55:42,517 INFO L87 Difference]: Start difference. First operand 3087 states and 8050 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:44,039 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-05-21 23:55:45,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:55:45,485 INFO L93 Difference]: Finished difference Result 3683 states and 9433 transitions. [2021-05-21 23:55:45,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:55:45,485 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:55:45,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:55:45,488 INFO L225 Difference]: With dead ends: 3683 [2021-05-21 23:55:45,488 INFO L226 Difference]: Without dead ends: 3499 [2021-05-21 23:55:45,488 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 2524.8ms TimeCoverageRelationStatistics Valid=628, Invalid=2912, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:55:45,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3499 states. [2021-05-21 23:55:45,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3499 to 3083. [2021-05-21 23:55:45,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3083 states, 3082 states have (on average 2.6080467229072033) internal successors, (8038), 3082 states have internal predecessors, (8038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:45,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3083 states to 3083 states and 8038 transitions. [2021-05-21 23:55:45,519 INFO L78 Accepts]: Start accepts. Automaton has 3083 states and 8038 transitions. Word has length 119 [2021-05-21 23:55:45,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:55:45,519 INFO L482 AbstractCegarLoop]: Abstraction has 3083 states and 8038 transitions. [2021-05-21 23:55:45,519 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:45,519 INFO L276 IsEmpty]: Start isEmpty. Operand 3083 states and 8038 transitions. [2021-05-21 23:55:45,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:55:45,522 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:55:45,522 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:55:45,522 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-05-21 23:55:45,522 INFO L430 AbstractCegarLoop]: === Iteration 170 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:55:45,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:55:45,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1834230611, now seen corresponding path program 128 times [2021-05-21 23:55:45,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:55:45,522 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916324160] [2021-05-21 23:55:45,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:55:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:55:46,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:55:46,133 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:55:46,133 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916324160] [2021-05-21 23:55:46,133 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916324160] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:55:46,133 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:55:46,133 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:55:46,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704397007] [2021-05-21 23:55:46,133 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:55:46,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:55:46,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:55:46,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:55:46,134 INFO L87 Difference]: Start difference. First operand 3083 states and 8038 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:47,102 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-05-21 23:55:47,461 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 65 [2021-05-21 23:55:47,636 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-05-21 23:55:49,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:55:49,031 INFO L93 Difference]: Finished difference Result 3561 states and 9084 transitions. [2021-05-21 23:55:49,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-21 23:55:49,031 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:55:49,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:55:49,033 INFO L225 Difference]: With dead ends: 3561 [2021-05-21 23:55:49,034 INFO L226 Difference]: Without dead ends: 3347 [2021-05-21 23:55:49,034 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 2497.7ms TimeCoverageRelationStatistics Valid=601, Invalid=2821, Unknown=0, NotChecked=0, Total=3422 [2021-05-21 23:55:49,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3347 states. [2021-05-21 23:55:49,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3347 to 3079. [2021-05-21 23:55:49,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3079 states, 3078 states have (on average 2.6062378167641325) internal successors, (8022), 3078 states have internal predecessors, (8022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:49,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3079 states to 3079 states and 8022 transitions. [2021-05-21 23:55:49,063 INFO L78 Accepts]: Start accepts. Automaton has 3079 states and 8022 transitions. Word has length 119 [2021-05-21 23:55:49,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:55:49,064 INFO L482 AbstractCegarLoop]: Abstraction has 3079 states and 8022 transitions. [2021-05-21 23:55:49,064 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:49,064 INFO L276 IsEmpty]: Start isEmpty. Operand 3079 states and 8022 transitions. [2021-05-21 23:55:49,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:55:49,066 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:55:49,066 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:55:49,066 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-05-21 23:55:49,066 INFO L430 AbstractCegarLoop]: === Iteration 171 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:55:49,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:55:49,067 INFO L82 PathProgramCache]: Analyzing trace with hash -667295235, now seen corresponding path program 129 times [2021-05-21 23:55:49,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:55:49,067 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38178722] [2021-05-21 23:55:49,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:55:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:55:49,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:55:49,653 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:55:49,653 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38178722] [2021-05-21 23:55:49,653 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38178722] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:55:49,653 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:55:49,653 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:55:49,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843972116] [2021-05-21 23:55:49,653 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:55:49,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:55:49,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:55:49,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:55:49,654 INFO L87 Difference]: Start difference. First operand 3079 states and 8022 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:52,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:55:52,251 INFO L93 Difference]: Finished difference Result 3687 states and 9494 transitions. [2021-05-21 23:55:52,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-21 23:55:52,252 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:55:52,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:55:52,254 INFO L225 Difference]: With dead ends: 3687 [2021-05-21 23:55:52,254 INFO L226 Difference]: Without dead ends: 3557 [2021-05-21 23:55:52,255 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 2231.4ms TimeCoverageRelationStatistics Valid=487, Invalid=2483, Unknown=0, NotChecked=0, Total=2970 [2021-05-21 23:55:52,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3557 states. [2021-05-21 23:55:52,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3557 to 3247. [2021-05-21 23:55:52,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3247 states, 3246 states have (on average 2.6001232285890326) internal successors, (8440), 3246 states have internal predecessors, (8440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:52,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3247 states to 3247 states and 8440 transitions. [2021-05-21 23:55:52,286 INFO L78 Accepts]: Start accepts. Automaton has 3247 states and 8440 transitions. Word has length 119 [2021-05-21 23:55:52,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:55:52,286 INFO L482 AbstractCegarLoop]: Abstraction has 3247 states and 8440 transitions. [2021-05-21 23:55:52,286 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:52,286 INFO L276 IsEmpty]: Start isEmpty. Operand 3247 states and 8440 transitions. [2021-05-21 23:55:52,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:55:52,288 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:55:52,288 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:55:52,288 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-05-21 23:55:52,289 INFO L430 AbstractCegarLoop]: === Iteration 172 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:55:52,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:55:52,289 INFO L82 PathProgramCache]: Analyzing trace with hash -265155583, now seen corresponding path program 130 times [2021-05-21 23:55:52,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:55:52,289 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958621233] [2021-05-21 23:55:52,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:55:52,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:55:52,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:55:52,904 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:55:52,904 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958621233] [2021-05-21 23:55:52,904 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958621233] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:55:52,904 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:55:52,904 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:55:52,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447480420] [2021-05-21 23:55:52,904 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:55:52,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:55:52,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:55:52,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:55:52,905 INFO L87 Difference]: Start difference. First operand 3247 states and 8440 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:55,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:55:55,415 INFO L93 Difference]: Finished difference Result 3861 states and 9900 transitions. [2021-05-21 23:55:55,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-21 23:55:55,416 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:55:55,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:55:55,419 INFO L225 Difference]: With dead ends: 3861 [2021-05-21 23:55:55,419 INFO L226 Difference]: Without dead ends: 3610 [2021-05-21 23:55:55,419 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 2212.0ms TimeCoverageRelationStatistics Valid=518, Invalid=2562, Unknown=0, NotChecked=0, Total=3080 [2021-05-21 23:55:55,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3610 states. [2021-05-21 23:55:55,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3610 to 3283. [2021-05-21 23:55:55,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3283 states, 3282 states have (on average 2.5898842169408898) internal successors, (8500), 3282 states have internal predecessors, (8500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:55,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 8500 transitions. [2021-05-21 23:55:55,452 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 8500 transitions. Word has length 119 [2021-05-21 23:55:55,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:55:55,452 INFO L482 AbstractCegarLoop]: Abstraction has 3283 states and 8500 transitions. [2021-05-21 23:55:55,452 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:55,452 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 8500 transitions. [2021-05-21 23:55:55,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:55:55,454 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:55:55,454 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:55:55,455 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-05-21 23:55:55,455 INFO L430 AbstractCegarLoop]: === Iteration 173 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:55:55,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:55:55,455 INFO L82 PathProgramCache]: Analyzing trace with hash 943269781, now seen corresponding path program 131 times [2021-05-21 23:55:55,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:55:55,455 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422719093] [2021-05-21 23:55:55,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:55:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:55:56,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:55:56,047 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:55:56,047 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422719093] [2021-05-21 23:55:56,047 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422719093] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:55:56,048 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:55:56,048 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:55:56,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496808046] [2021-05-21 23:55:56,048 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:55:56,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:55:56,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:55:56,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:55:56,048 INFO L87 Difference]: Start difference. First operand 3283 states and 8500 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:57,903 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-05-21 23:55:58,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:55:58,647 INFO L93 Difference]: Finished difference Result 3692 states and 9443 transitions. [2021-05-21 23:55:58,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-21 23:55:58,648 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:55:58,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:55:58,650 INFO L225 Difference]: With dead ends: 3692 [2021-05-21 23:55:58,650 INFO L226 Difference]: Without dead ends: 3406 [2021-05-21 23:55:58,651 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 2299.5ms TimeCoverageRelationStatistics Valid=520, Invalid=2672, Unknown=0, NotChecked=0, Total=3192 [2021-05-21 23:55:58,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3406 states. [2021-05-21 23:55:58,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3406 to 3079. [2021-05-21 23:55:58,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3079 states, 3078 states have (on average 2.6023391812865495) internal successors, (8010), 3078 states have internal predecessors, (8010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:58,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3079 states to 3079 states and 8010 transitions. [2021-05-21 23:55:58,680 INFO L78 Accepts]: Start accepts. Automaton has 3079 states and 8010 transitions. Word has length 119 [2021-05-21 23:55:58,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:55:58,680 INFO L482 AbstractCegarLoop]: Abstraction has 3079 states and 8010 transitions. [2021-05-21 23:55:58,680 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:55:58,681 INFO L276 IsEmpty]: Start isEmpty. Operand 3079 states and 8010 transitions. [2021-05-21 23:55:58,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:55:58,683 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:55:58,683 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:55:58,683 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-05-21 23:55:58,683 INFO L430 AbstractCegarLoop]: === Iteration 174 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:55:58,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:55:58,684 INFO L82 PathProgramCache]: Analyzing trace with hash -659960131, now seen corresponding path program 132 times [2021-05-21 23:55:58,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:55:58,684 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406808115] [2021-05-21 23:55:58,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:55:58,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:55:59,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:55:59,263 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:55:59,263 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406808115] [2021-05-21 23:55:59,263 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406808115] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:55:59,263 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:55:59,263 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:55:59,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28305593] [2021-05-21 23:55:59,263 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:55:59,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:55:59,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:55:59,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:55:59,264 INFO L87 Difference]: Start difference. First operand 3079 states and 8010 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:00,759 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2021-05-21 23:56:01,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:56:01,735 INFO L93 Difference]: Finished difference Result 3437 states and 8851 transitions. [2021-05-21 23:56:01,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-21 23:56:01,736 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:56:01,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:56:01,738 INFO L225 Difference]: With dead ends: 3437 [2021-05-21 23:56:01,738 INFO L226 Difference]: Without dead ends: 3293 [2021-05-21 23:56:01,738 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 2197.9ms TimeCoverageRelationStatistics Valid=503, Invalid=2467, Unknown=0, NotChecked=0, Total=2970 [2021-05-21 23:56:01,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3293 states. [2021-05-21 23:56:01,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3293 to 3067. [2021-05-21 23:56:01,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3067 states, 3066 states have (on average 2.604696673189824) internal successors, (7986), 3066 states have internal predecessors, (7986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:01,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3067 states to 3067 states and 7986 transitions. [2021-05-21 23:56:01,769 INFO L78 Accepts]: Start accepts. Automaton has 3067 states and 7986 transitions. Word has length 119 [2021-05-21 23:56:01,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:56:01,769 INFO L482 AbstractCegarLoop]: Abstraction has 3067 states and 7986 transitions. [2021-05-21 23:56:01,769 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:01,769 INFO L276 IsEmpty]: Start isEmpty. Operand 3067 states and 7986 transitions. [2021-05-21 23:56:01,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:56:01,771 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:56:01,771 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:56:01,771 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-05-21 23:56:01,771 INFO L430 AbstractCegarLoop]: === Iteration 175 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:56:01,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:56:01,772 INFO L82 PathProgramCache]: Analyzing trace with hash -562381799, now seen corresponding path program 133 times [2021-05-21 23:56:01,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:56:01,772 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293216697] [2021-05-21 23:56:01,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:56:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:56:02,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:56:02,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:56:02,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293216697] [2021-05-21 23:56:02,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293216697] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:56:02,346 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:56:02,346 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:56:02,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87131850] [2021-05-21 23:56:02,347 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:56:02,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:56:02,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:56:02,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:56:02,347 INFO L87 Difference]: Start difference. First operand 3067 states and 7986 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:04,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:56:04,892 INFO L93 Difference]: Finished difference Result 4134 states and 10644 transitions. [2021-05-21 23:56:04,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-21 23:56:04,892 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:56:04,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:56:04,895 INFO L225 Difference]: With dead ends: 4134 [2021-05-21 23:56:04,895 INFO L226 Difference]: Without dead ends: 4004 [2021-05-21 23:56:04,895 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 2080.5ms TimeCoverageRelationStatistics Valid=477, Invalid=2493, Unknown=0, NotChecked=0, Total=2970 [2021-05-21 23:56:04,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4004 states. [2021-05-21 23:56:04,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4004 to 3211. [2021-05-21 23:56:04,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3211 states, 3210 states have (on average 2.6031152647975078) internal successors, (8356), 3210 states have internal predecessors, (8356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:04,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3211 states to 3211 states and 8356 transitions. [2021-05-21 23:56:04,928 INFO L78 Accepts]: Start accepts. Automaton has 3211 states and 8356 transitions. Word has length 119 [2021-05-21 23:56:04,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:56:04,928 INFO L482 AbstractCegarLoop]: Abstraction has 3211 states and 8356 transitions. [2021-05-21 23:56:04,928 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:04,928 INFO L276 IsEmpty]: Start isEmpty. Operand 3211 states and 8356 transitions. [2021-05-21 23:56:04,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:56:04,930 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:56:04,930 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:56:04,930 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-05-21 23:56:04,930 INFO L430 AbstractCegarLoop]: === Iteration 176 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:56:04,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:56:04,931 INFO L82 PathProgramCache]: Analyzing trace with hash -160242147, now seen corresponding path program 134 times [2021-05-21 23:56:04,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:56:04,931 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17300759] [2021-05-21 23:56:04,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:56:04,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:56:05,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:56:05,521 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:56:05,521 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17300759] [2021-05-21 23:56:05,521 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17300759] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:56:05,521 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:56:05,521 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:56:05,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080054819] [2021-05-21 23:56:05,522 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:56:05,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:56:05,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:56:05,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:56:05,522 INFO L87 Difference]: Start difference. First operand 3211 states and 8356 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:08,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:56:08,143 INFO L93 Difference]: Finished difference Result 4308 states and 11050 transitions. [2021-05-21 23:56:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-21 23:56:08,143 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:56:08,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:56:08,146 INFO L225 Difference]: With dead ends: 4308 [2021-05-21 23:56:08,146 INFO L226 Difference]: Without dead ends: 4057 [2021-05-21 23:56:08,147 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 2270.7ms TimeCoverageRelationStatistics Valid=505, Invalid=2575, Unknown=0, NotChecked=0, Total=3080 [2021-05-21 23:56:08,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4057 states. [2021-05-21 23:56:08,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4057 to 3247. [2021-05-21 23:56:08,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3247 states, 3246 states have (on average 2.592729513247073) internal successors, (8416), 3246 states have internal predecessors, (8416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:08,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3247 states to 3247 states and 8416 transitions. [2021-05-21 23:56:08,181 INFO L78 Accepts]: Start accepts. Automaton has 3247 states and 8416 transitions. Word has length 119 [2021-05-21 23:56:08,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:56:08,181 INFO L482 AbstractCegarLoop]: Abstraction has 3247 states and 8416 transitions. [2021-05-21 23:56:08,181 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:08,181 INFO L276 IsEmpty]: Start isEmpty. Operand 3247 states and 8416 transitions. [2021-05-21 23:56:08,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:56:08,183 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:56:08,183 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:56:08,183 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-05-21 23:56:08,184 INFO L430 AbstractCegarLoop]: === Iteration 177 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:56:08,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:56:08,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1048183217, now seen corresponding path program 135 times [2021-05-21 23:56:08,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:56:08,184 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945545407] [2021-05-21 23:56:08,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:56:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:56:08,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:56:08,780 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:56:08,780 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945545407] [2021-05-21 23:56:08,781 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945545407] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:56:08,781 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:56:08,781 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:56:08,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746311381] [2021-05-21 23:56:08,781 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:56:08,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:56:08,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:56:08,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:56:08,781 INFO L87 Difference]: Start difference. First operand 3247 states and 8416 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:11,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:56:11,449 INFO L93 Difference]: Finished difference Result 4139 states and 10593 transitions. [2021-05-21 23:56:11,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-21 23:56:11,449 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:56:11,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:56:11,452 INFO L225 Difference]: With dead ends: 4139 [2021-05-21 23:56:11,452 INFO L226 Difference]: Without dead ends: 3853 [2021-05-21 23:56:11,452 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 2275.3ms TimeCoverageRelationStatistics Valid=509, Invalid=2683, Unknown=0, NotChecked=0, Total=3192 [2021-05-21 23:56:11,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3853 states. [2021-05-21 23:56:11,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3853 to 3043. [2021-05-21 23:56:11,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3043 states, 3042 states have (on average 2.58974358974359) internal successors, (7878), 3042 states have internal predecessors, (7878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:11,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 7878 transitions. [2021-05-21 23:56:11,484 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 7878 transitions. Word has length 119 [2021-05-21 23:56:11,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:56:11,484 INFO L482 AbstractCegarLoop]: Abstraction has 3043 states and 7878 transitions. [2021-05-21 23:56:11,484 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:11,484 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 7878 transitions. [2021-05-21 23:56:11,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:56:11,486 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:56:11,486 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:56:11,486 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-05-21 23:56:11,486 INFO L430 AbstractCegarLoop]: === Iteration 178 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:56:11,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:56:11,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1028140911, now seen corresponding path program 136 times [2021-05-21 23:56:11,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:56:11,487 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927117556] [2021-05-21 23:56:11,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:56:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:56:12,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:56:12,058 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:56:12,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927117556] [2021-05-21 23:56:12,058 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927117556] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:56:12,058 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:56:12,058 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:56:12,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106683169] [2021-05-21 23:56:12,058 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:56:12,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:56:12,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:56:12,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:56:12,059 INFO L87 Difference]: Start difference. First operand 3043 states and 7878 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:14,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:56:14,710 INFO L93 Difference]: Finished difference Result 4063 states and 10313 transitions. [2021-05-21 23:56:14,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-21 23:56:14,711 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:56:14,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:56:14,713 INFO L225 Difference]: With dead ends: 4063 [2021-05-21 23:56:14,713 INFO L226 Difference]: Without dead ends: 3858 [2021-05-21 23:56:14,714 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 2256.9ms TimeCoverageRelationStatistics Valid=520, Invalid=2786, Unknown=0, NotChecked=0, Total=3306 [2021-05-21 23:56:14,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3858 states. [2021-05-21 23:56:14,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3858 to 2983. [2021-05-21 23:56:14,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2983 states, 2982 states have (on average 2.601609657947686) internal successors, (7758), 2982 states have internal predecessors, (7758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:14,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2983 states to 2983 states and 7758 transitions. [2021-05-21 23:56:14,743 INFO L78 Accepts]: Start accepts. Automaton has 2983 states and 7758 transitions. Word has length 119 [2021-05-21 23:56:14,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:56:14,743 INFO L482 AbstractCegarLoop]: Abstraction has 2983 states and 7758 transitions. [2021-05-21 23:56:14,743 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:14,743 INFO L276 IsEmpty]: Start isEmpty. Operand 2983 states and 7758 transitions. [2021-05-21 23:56:14,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:56:14,745 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:56:14,745 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:56:14,745 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-05-21 23:56:14,745 INFO L430 AbstractCegarLoop]: === Iteration 179 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:56:14,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:56:14,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1908947921, now seen corresponding path program 137 times [2021-05-21 23:56:14,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:56:14,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143471386] [2021-05-21 23:56:14,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:56:14,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:56:15,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:56:15,337 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:56:15,337 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143471386] [2021-05-21 23:56:15,337 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143471386] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:56:15,337 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:56:15,337 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:56:15,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702161753] [2021-05-21 23:56:15,338 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:56:15,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:56:15,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:56:15,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:56:15,338 INFO L87 Difference]: Start difference. First operand 2983 states and 7758 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:16,713 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2021-05-21 23:56:17,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:56:17,763 INFO L93 Difference]: Finished difference Result 3389 states and 8711 transitions. [2021-05-21 23:56:17,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-21 23:56:17,763 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:56:17,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:56:17,766 INFO L225 Difference]: With dead ends: 3389 [2021-05-21 23:56:17,766 INFO L226 Difference]: Without dead ends: 3257 [2021-05-21 23:56:17,766 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 2169.2ms TimeCoverageRelationStatistics Valid=503, Invalid=2467, Unknown=0, NotChecked=0, Total=2970 [2021-05-21 23:56:17,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3257 states. [2021-05-21 23:56:17,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3257 to 2985. [2021-05-21 23:56:17,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2985 states, 2984 states have (on average 2.6008713136729225) internal successors, (7761), 2984 states have internal predecessors, (7761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:17,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2985 states to 2985 states and 7761 transitions. [2021-05-21 23:56:17,796 INFO L78 Accepts]: Start accepts. Automaton has 2985 states and 7761 transitions. Word has length 119 [2021-05-21 23:56:17,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:56:17,796 INFO L482 AbstractCegarLoop]: Abstraction has 2985 states and 7761 transitions. [2021-05-21 23:56:17,796 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:17,796 INFO L276 IsEmpty]: Start isEmpty. Operand 2985 states and 7761 transitions. [2021-05-21 23:56:17,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:56:17,798 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:56:17,798 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:56:17,798 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-05-21 23:56:17,798 INFO L430 AbstractCegarLoop]: === Iteration 180 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:56:17,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:56:17,799 INFO L82 PathProgramCache]: Analyzing trace with hash 242127883, now seen corresponding path program 138 times [2021-05-21 23:56:17,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:56:17,799 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207068038] [2021-05-21 23:56:17,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:56:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:56:18,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:56:18,402 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:56:18,403 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207068038] [2021-05-21 23:56:18,403 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207068038] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:56:18,403 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:56:18,403 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:56:18,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626889682] [2021-05-21 23:56:18,403 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:56:18,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:56:18,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:56:18,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:56:18,403 INFO L87 Difference]: Start difference. First operand 2985 states and 7761 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:20,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:56:20,981 INFO L93 Difference]: Finished difference Result 3566 states and 9064 transitions. [2021-05-21 23:56:20,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-21 23:56:20,981 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:56:20,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:56:20,983 INFO L225 Difference]: With dead ends: 3566 [2021-05-21 23:56:20,984 INFO L226 Difference]: Without dead ends: 3407 [2021-05-21 23:56:20,984 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 2280.1ms TimeCoverageRelationStatistics Valid=559, Invalid=2747, Unknown=0, NotChecked=0, Total=3306 [2021-05-21 23:56:20,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3407 states. [2021-05-21 23:56:21,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3407 to 2971. [2021-05-21 23:56:21,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2971 states, 2970 states have (on average 2.604040404040404) internal successors, (7734), 2970 states have internal predecessors, (7734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:21,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2971 states to 2971 states and 7734 transitions. [2021-05-21 23:56:21,011 INFO L78 Accepts]: Start accepts. Automaton has 2971 states and 7734 transitions. Word has length 119 [2021-05-21 23:56:21,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:56:21,011 INFO L482 AbstractCegarLoop]: Abstraction has 2971 states and 7734 transitions. [2021-05-21 23:56:21,011 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:21,011 INFO L276 IsEmpty]: Start isEmpty. Operand 2971 states and 7734 transitions. [2021-05-21 23:56:21,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:56:21,013 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:56:21,013 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:56:21,013 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-05-21 23:56:21,013 INFO L430 AbstractCegarLoop]: === Iteration 181 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:56:21,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:56:21,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1898146437, now seen corresponding path program 139 times [2021-05-21 23:56:21,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:56:21,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525626116] [2021-05-21 23:56:21,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:56:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:56:21,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:56:21,610 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:56:21,610 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525626116] [2021-05-21 23:56:21,610 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525626116] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:56:21,610 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:56:21,610 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:56:21,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498853185] [2021-05-21 23:56:21,610 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:56:21,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:56:21,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:56:21,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:56:21,611 INFO L87 Difference]: Start difference. First operand 2971 states and 7734 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:22,944 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-05-21 23:56:24,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:56:24,290 INFO L93 Difference]: Finished difference Result 3377 states and 8570 transitions. [2021-05-21 23:56:24,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-21 23:56:24,290 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:56:24,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:56:24,292 INFO L225 Difference]: With dead ends: 3377 [2021-05-21 23:56:24,292 INFO L226 Difference]: Without dead ends: 3199 [2021-05-21 23:56:24,293 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 2389.9ms TimeCoverageRelationStatistics Valid=601, Invalid=2821, Unknown=0, NotChecked=0, Total=3422 [2021-05-21 23:56:24,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3199 states. [2021-05-21 23:56:24,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3199 to 2979. [2021-05-21 23:56:24,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2978 states have (on average 2.6017461383478846) internal successors, (7748), 2978 states have internal predecessors, (7748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:24,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 7748 transitions. [2021-05-21 23:56:24,320 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 7748 transitions. Word has length 119 [2021-05-21 23:56:24,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:56:24,320 INFO L482 AbstractCegarLoop]: Abstraction has 2979 states and 7748 transitions. [2021-05-21 23:56:24,320 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:24,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 7748 transitions. [2021-05-21 23:56:24,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:56:24,323 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:56:24,323 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:56:24,323 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-05-21 23:56:24,323 INFO L430 AbstractCegarLoop]: === Iteration 182 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:56:24,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:56:24,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1378785667, now seen corresponding path program 140 times [2021-05-21 23:56:24,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:56:24,323 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278894433] [2021-05-21 23:56:24,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:56:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:56:24,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:56:24,950 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:56:24,950 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278894433] [2021-05-21 23:56:24,950 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278894433] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:56:24,950 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:56:24,950 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:56:24,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017182847] [2021-05-21 23:56:24,950 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:56:24,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:56:24,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:56:24,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:56:24,950 INFO L87 Difference]: Start difference. First operand 2979 states and 7748 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:26,241 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-05-21 23:56:27,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:56:27,290 INFO L93 Difference]: Finished difference Result 3203 states and 8200 transitions. [2021-05-21 23:56:27,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-21 23:56:27,290 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:56:27,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:56:27,292 INFO L225 Difference]: With dead ends: 3203 [2021-05-21 23:56:27,292 INFO L226 Difference]: Without dead ends: 3071 [2021-05-21 23:56:27,292 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 2131.5ms TimeCoverageRelationStatistics Valid=481, Invalid=2381, Unknown=0, NotChecked=0, Total=2862 [2021-05-21 23:56:27,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3071 states. [2021-05-21 23:56:27,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3071 to 2981. [2021-05-21 23:56:27,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2981 states, 2980 states have (on average 2.6010067114093958) internal successors, (7751), 2980 states have internal predecessors, (7751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:27,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2981 states to 2981 states and 7751 transitions. [2021-05-21 23:56:27,320 INFO L78 Accepts]: Start accepts. Automaton has 2981 states and 7751 transitions. Word has length 119 [2021-05-21 23:56:27,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:56:27,320 INFO L482 AbstractCegarLoop]: Abstraction has 2981 states and 7751 transitions. [2021-05-21 23:56:27,321 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:27,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2981 states and 7751 transitions. [2021-05-21 23:56:27,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:56:27,323 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:56:27,323 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:56:27,323 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-05-21 23:56:27,323 INFO L430 AbstractCegarLoop]: === Iteration 183 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:56:27,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:56:27,323 INFO L82 PathProgramCache]: Analyzing trace with hash 601066137, now seen corresponding path program 141 times [2021-05-21 23:56:27,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:56:27,323 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751981882] [2021-05-21 23:56:27,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:56:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:56:27,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:56:27,968 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:56:27,968 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751981882] [2021-05-21 23:56:27,968 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751981882] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:56:27,968 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:56:27,968 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:56:27,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860303743] [2021-05-21 23:56:27,968 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:56:27,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:56:27,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:56:27,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:56:27,969 INFO L87 Difference]: Start difference. First operand 2981 states and 7751 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:30,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:56:30,525 INFO L93 Difference]: Finished difference Result 3370 states and 8528 transitions. [2021-05-21 23:56:30,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-21 23:56:30,525 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:56:30,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:56:30,527 INFO L225 Difference]: With dead ends: 3370 [2021-05-21 23:56:30,527 INFO L226 Difference]: Without dead ends: 3181 [2021-05-21 23:56:30,527 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 2314.7ms TimeCoverageRelationStatistics Valid=536, Invalid=2656, Unknown=0, NotChecked=0, Total=3192 [2021-05-21 23:56:30,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3181 states. [2021-05-21 23:56:30,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3181 to 2937. [2021-05-21 23:56:30,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2937 states, 2936 states have (on average 2.6106948228882834) internal successors, (7665), 2936 states have internal predecessors, (7665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:30,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2937 states to 2937 states and 7665 transitions. [2021-05-21 23:56:30,553 INFO L78 Accepts]: Start accepts. Automaton has 2937 states and 7665 transitions. Word has length 119 [2021-05-21 23:56:30,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:56:30,553 INFO L482 AbstractCegarLoop]: Abstraction has 2937 states and 7665 transitions. [2021-05-21 23:56:30,553 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:30,553 INFO L276 IsEmpty]: Start isEmpty. Operand 2937 states and 7665 transitions. [2021-05-21 23:56:30,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:56:30,555 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:56:30,555 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:56:30,555 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-05-21 23:56:30,555 INFO L430 AbstractCegarLoop]: === Iteration 184 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:56:30,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:56:30,555 INFO L82 PathProgramCache]: Analyzing trace with hash 811371103, now seen corresponding path program 142 times [2021-05-21 23:56:30,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:56:30,556 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500405227] [2021-05-21 23:56:30,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:56:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:56:30,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:56:30,781 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:56:30,781 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500405227] [2021-05-21 23:56:30,781 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500405227] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:56:30,781 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:56:30,782 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-05-21 23:56:30,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854690079] [2021-05-21 23:56:30,782 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-21 23:56:30,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:56:30,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-21 23:56:30,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:56:30,782 INFO L87 Difference]: Start difference. First operand 2937 states and 7665 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:31,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:56:31,225 INFO L93 Difference]: Finished difference Result 3503 states and 8715 transitions. [2021-05-21 23:56:31,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-21 23:56:31,225 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:56:31,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:56:31,228 INFO L225 Difference]: With dead ends: 3503 [2021-05-21 23:56:31,228 INFO L226 Difference]: Without dead ends: 3447 [2021-05-21 23:56:31,228 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 374.4ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-05-21 23:56:31,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2021-05-21 23:56:31,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 2749. [2021-05-21 23:56:31,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2749 states, 2748 states have (on average 2.5782387190684135) internal successors, (7085), 2748 states have internal predecessors, (7085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:31,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2749 states to 2749 states and 7085 transitions. [2021-05-21 23:56:31,255 INFO L78 Accepts]: Start accepts. Automaton has 2749 states and 7085 transitions. Word has length 119 [2021-05-21 23:56:31,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:56:31,255 INFO L482 AbstractCegarLoop]: Abstraction has 2749 states and 7085 transitions. [2021-05-21 23:56:31,255 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:31,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2749 states and 7085 transitions. [2021-05-21 23:56:31,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:56:31,257 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:56:31,257 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:56:31,257 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-05-21 23:56:31,257 INFO L430 AbstractCegarLoop]: === Iteration 185 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:56:31,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:56:31,257 INFO L82 PathProgramCache]: Analyzing trace with hash 239606275, now seen corresponding path program 143 times [2021-05-21 23:56:31,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:56:31,257 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931277256] [2021-05-21 23:56:31,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:56:31,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:56:31,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:56:31,882 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:56:31,882 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931277256] [2021-05-21 23:56:31,882 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931277256] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:56:31,882 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:56:31,882 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:56:31,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475631343] [2021-05-21 23:56:31,883 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:56:31,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:56:31,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:56:31,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:56:31,883 INFO L87 Difference]: Start difference. First operand 2749 states and 7085 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:33,030 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-05-21 23:56:33,193 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-05-21 23:56:33,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:56:33,999 INFO L93 Difference]: Finished difference Result 2870 states and 7294 transitions. [2021-05-21 23:56:33,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:56:34,000 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:56:34,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:56:34,002 INFO L225 Difference]: With dead ends: 2870 [2021-05-21 23:56:34,002 INFO L226 Difference]: Without dead ends: 2765 [2021-05-21 23:56:34,002 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 1949.9ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:56:34,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2765 states. [2021-05-21 23:56:34,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2765 to 2749. [2021-05-21 23:56:34,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2749 states, 2748 states have (on average 2.576783114992722) internal successors, (7081), 2748 states have internal predecessors, (7081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:34,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2749 states to 2749 states and 7081 transitions. [2021-05-21 23:56:34,027 INFO L78 Accepts]: Start accepts. Automaton has 2749 states and 7081 transitions. Word has length 119 [2021-05-21 23:56:34,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:56:34,027 INFO L482 AbstractCegarLoop]: Abstraction has 2749 states and 7081 transitions. [2021-05-21 23:56:34,027 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:34,027 INFO L276 IsEmpty]: Start isEmpty. Operand 2749 states and 7081 transitions. [2021-05-21 23:56:34,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:56:34,029 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:56:34,029 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:56:34,029 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-05-21 23:56:34,030 INFO L430 AbstractCegarLoop]: === Iteration 186 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:56:34,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:56:34,030 INFO L82 PathProgramCache]: Analyzing trace with hash 235188135, now seen corresponding path program 144 times [2021-05-21 23:56:34,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:56:34,030 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004520197] [2021-05-21 23:56:34,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:56:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:56:34,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:56:34,624 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:56:34,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004520197] [2021-05-21 23:56:34,624 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004520197] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:56:34,624 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:56:34,624 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:56:34,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684496996] [2021-05-21 23:56:34,624 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:56:34,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:56:34,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:56:34,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:56:34,625 INFO L87 Difference]: Start difference. First operand 2749 states and 7081 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:36,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:56:36,876 INFO L93 Difference]: Finished difference Result 3076 states and 7832 transitions. [2021-05-21 23:56:36,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-21 23:56:36,877 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:56:36,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:56:36,879 INFO L225 Difference]: With dead ends: 3076 [2021-05-21 23:56:36,879 INFO L226 Difference]: Without dead ends: 2981 [2021-05-21 23:56:36,879 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 1984.3ms TimeCoverageRelationStatistics Valid=452, Invalid=2304, Unknown=0, NotChecked=0, Total=2756 [2021-05-21 23:56:36,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2021-05-21 23:56:36,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 2893. [2021-05-21 23:56:36,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2893 states, 2892 states have (on average 2.576417704011065) internal successors, (7451), 2892 states have internal predecessors, (7451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:36,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 7451 transitions. [2021-05-21 23:56:36,906 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 7451 transitions. Word has length 119 [2021-05-21 23:56:36,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:56:36,906 INFO L482 AbstractCegarLoop]: Abstraction has 2893 states and 7451 transitions. [2021-05-21 23:56:36,906 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:36,906 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 7451 transitions. [2021-05-21 23:56:36,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:56:36,908 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:56:36,908 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:56:36,908 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-05-21 23:56:36,909 INFO L430 AbstractCegarLoop]: === Iteration 187 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:56:36,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:56:36,909 INFO L82 PathProgramCache]: Analyzing trace with hash -239518167, now seen corresponding path program 145 times [2021-05-21 23:56:36,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:56:36,909 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636107312] [2021-05-21 23:56:36,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:56:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:56:37,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:56:37,559 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:56:37,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636107312] [2021-05-21 23:56:37,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636107312] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:56:37,559 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:56:37,559 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:56:37,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55736570] [2021-05-21 23:56:37,559 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:56:37,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:56:37,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:56:37,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:56:37,560 INFO L87 Difference]: Start difference. First operand 2893 states and 7451 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:39,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:56:39,977 INFO L93 Difference]: Finished difference Result 3299 states and 8335 transitions. [2021-05-21 23:56:39,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-21 23:56:39,977 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:56:39,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:56:39,979 INFO L225 Difference]: With dead ends: 3299 [2021-05-21 23:56:39,979 INFO L226 Difference]: Without dead ends: 2804 [2021-05-21 23:56:39,979 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 2128.4ms TimeCoverageRelationStatistics Valid=502, Invalid=2578, Unknown=0, NotChecked=0, Total=3080 [2021-05-21 23:56:39,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2021-05-21 23:56:39,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2725. [2021-05-21 23:56:40,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2725 states, 2724 states have (on average 2.577459618208517) internal successors, (7021), 2724 states have internal predecessors, (7021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:40,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2725 states to 2725 states and 7021 transitions. [2021-05-21 23:56:40,003 INFO L78 Accepts]: Start accepts. Automaton has 2725 states and 7021 transitions. Word has length 119 [2021-05-21 23:56:40,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:56:40,003 INFO L482 AbstractCegarLoop]: Abstraction has 2725 states and 7021 transitions. [2021-05-21 23:56:40,003 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:40,003 INFO L276 IsEmpty]: Start isEmpty. Operand 2725 states and 7021 transitions. [2021-05-21 23:56:40,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:56:40,005 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:56:40,005 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:56:40,005 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-05-21 23:56:40,005 INFO L430 AbstractCegarLoop]: === Iteration 188 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:56:40,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:56:40,005 INFO L82 PathProgramCache]: Analyzing trace with hash -683582829, now seen corresponding path program 146 times [2021-05-21 23:56:40,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:56:40,005 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630917620] [2021-05-21 23:56:40,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:56:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:56:40,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:56:40,608 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:56:40,608 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630917620] [2021-05-21 23:56:40,608 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630917620] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:56:40,608 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:56:40,608 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:56:40,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646807888] [2021-05-21 23:56:40,608 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:56:40,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:56:40,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:56:40,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:56:40,609 INFO L87 Difference]: Start difference. First operand 2725 states and 7021 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:41,976 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-05-21 23:56:42,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:56:42,841 INFO L93 Difference]: Finished difference Result 2837 states and 7216 transitions. [2021-05-21 23:56:42,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-21 23:56:42,842 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:56:42,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:56:42,843 INFO L225 Difference]: With dead ends: 2837 [2021-05-21 23:56:42,843 INFO L226 Difference]: Without dead ends: 2680 [2021-05-21 23:56:42,844 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 2018.2ms TimeCoverageRelationStatistics Valid=464, Invalid=2292, Unknown=0, NotChecked=0, Total=2756 [2021-05-21 23:56:42,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2680 states. [2021-05-21 23:56:42,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2680 to 2665. [2021-05-21 23:56:42,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2665 states, 2664 states have (on average 2.591966966966967) internal successors, (6905), 2664 states have internal predecessors, (6905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:42,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 6905 transitions. [2021-05-21 23:56:42,867 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 6905 transitions. Word has length 119 [2021-05-21 23:56:42,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:56:42,868 INFO L482 AbstractCegarLoop]: Abstraction has 2665 states and 6905 transitions. [2021-05-21 23:56:42,868 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:42,868 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 6905 transitions. [2021-05-21 23:56:42,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:56:42,870 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:56:42,870 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:56:42,870 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-05-21 23:56:42,870 INFO L430 AbstractCegarLoop]: === Iteration 189 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:56:42,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:56:42,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1038992181, now seen corresponding path program 147 times [2021-05-21 23:56:42,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:56:42,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63364277] [2021-05-21 23:56:42,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:56:42,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:56:43,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:56:43,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:56:43,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63364277] [2021-05-21 23:56:43,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63364277] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:56:43,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:56:43,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:56:43,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391115065] [2021-05-21 23:56:43,462 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:56:43,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:56:43,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:56:43,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:56:43,463 INFO L87 Difference]: Start difference. First operand 2665 states and 6905 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:45,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:56:45,613 INFO L93 Difference]: Finished difference Result 2810 states and 7181 transitions. [2021-05-21 23:56:45,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:56:45,613 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:56:45,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:56:45,615 INFO L225 Difference]: With dead ends: 2810 [2021-05-21 23:56:45,615 INFO L226 Difference]: Without dead ends: 2691 [2021-05-21 23:56:45,616 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 1879.2ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:56:45,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2021-05-21 23:56:45,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2649. [2021-05-21 23:56:45,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2649 states, 2648 states have (on average 2.596299093655589) internal successors, (6875), 2648 states have internal predecessors, (6875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:45,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2649 states to 2649 states and 6875 transitions. [2021-05-21 23:56:45,640 INFO L78 Accepts]: Start accepts. Automaton has 2649 states and 6875 transitions. Word has length 119 [2021-05-21 23:56:45,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:56:45,640 INFO L482 AbstractCegarLoop]: Abstraction has 2649 states and 6875 transitions. [2021-05-21 23:56:45,641 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:45,641 INFO L276 IsEmpty]: Start isEmpty. Operand 2649 states and 6875 transitions. [2021-05-21 23:56:45,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:56:45,642 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:56:45,642 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:56:45,643 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-05-21 23:56:45,643 INFO L430 AbstractCegarLoop]: === Iteration 190 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:56:45,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:56:45,643 INFO L82 PathProgramCache]: Analyzing trace with hash 2077494909, now seen corresponding path program 148 times [2021-05-21 23:56:45,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:56:45,643 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653728801] [2021-05-21 23:56:45,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:56:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:56:45,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:56:45,833 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:56:45,833 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653728801] [2021-05-21 23:56:45,833 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653728801] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:56:45,833 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:56:45,833 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-05-21 23:56:45,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105536882] [2021-05-21 23:56:45,833 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 23:56:45,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:56:45,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 23:56:45,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:56:45,833 INFO L87 Difference]: Start difference. First operand 2649 states and 6875 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:46,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:56:46,072 INFO L93 Difference]: Finished difference Result 5195 states and 13221 transitions. [2021-05-21 23:56:46,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 23:56:46,073 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:56:46,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:56:46,077 INFO L225 Difference]: With dead ends: 5195 [2021-05-21 23:56:46,077 INFO L226 Difference]: Without dead ends: 5195 [2021-05-21 23:56:46,077 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 232.2ms TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-05-21 23:56:46,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5195 states. [2021-05-21 23:56:46,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5195 to 2819. [2021-05-21 23:56:46,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 2818 states have (on average 2.5691980127750176) internal successors, (7240), 2818 states have internal predecessors, (7240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:46,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 7240 transitions. [2021-05-21 23:56:46,110 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 7240 transitions. Word has length 119 [2021-05-21 23:56:46,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:56:46,110 INFO L482 AbstractCegarLoop]: Abstraction has 2819 states and 7240 transitions. [2021-05-21 23:56:46,110 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:46,110 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 7240 transitions. [2021-05-21 23:56:46,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:56:46,112 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:56:46,112 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:56:46,112 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-05-21 23:56:46,112 INFO L430 AbstractCegarLoop]: === Iteration 191 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:56:46,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:56:46,112 INFO L82 PathProgramCache]: Analyzing trace with hash -1300517505, now seen corresponding path program 149 times [2021-05-21 23:56:46,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:56:46,113 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300720033] [2021-05-21 23:56:46,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:56:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:56:46,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:56:46,692 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:56:46,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300720033] [2021-05-21 23:56:46,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300720033] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:56:46,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:56:46,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:56:46,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060184318] [2021-05-21 23:56:46,692 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:56:46,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:56:46,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:56:46,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:56:46,693 INFO L87 Difference]: Start difference. First operand 2819 states and 7240 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:49,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:56:49,547 INFO L93 Difference]: Finished difference Result 4283 states and 10970 transitions. [2021-05-21 23:56:49,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:56:49,548 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:56:49,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:56:49,551 INFO L225 Difference]: With dead ends: 4283 [2021-05-21 23:56:49,551 INFO L226 Difference]: Without dead ends: 4117 [2021-05-21 23:56:49,551 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2411.0ms TimeCoverageRelationStatistics Valid=575, Invalid=2965, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:56:49,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4117 states. [2021-05-21 23:56:49,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4117 to 3251. [2021-05-21 23:56:49,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3251 states, 3250 states have (on average 2.6055384615384614) internal successors, (8468), 3250 states have internal predecessors, (8468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:49,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3251 states to 3251 states and 8468 transitions. [2021-05-21 23:56:49,582 INFO L78 Accepts]: Start accepts. Automaton has 3251 states and 8468 transitions. Word has length 119 [2021-05-21 23:56:49,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:56:49,582 INFO L482 AbstractCegarLoop]: Abstraction has 3251 states and 8468 transitions. [2021-05-21 23:56:49,582 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:49,583 INFO L276 IsEmpty]: Start isEmpty. Operand 3251 states and 8468 transitions. [2021-05-21 23:56:49,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:56:49,585 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:56:49,585 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:56:49,586 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-05-21 23:56:49,586 INFO L430 AbstractCegarLoop]: === Iteration 192 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:56:49,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:56:49,586 INFO L82 PathProgramCache]: Analyzing trace with hash -898377853, now seen corresponding path program 150 times [2021-05-21 23:56:49,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:56:49,586 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58886945] [2021-05-21 23:56:49,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:56:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:56:50,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:56:50,209 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:56:50,209 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58886945] [2021-05-21 23:56:50,209 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58886945] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:56:50,209 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:56:50,209 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:56:50,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322158011] [2021-05-21 23:56:50,209 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:56:50,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:56:50,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:56:50,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:56:50,210 INFO L87 Difference]: Start difference. First operand 3251 states and 8468 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:51,328 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-05-21 23:56:53,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:56:53,141 INFO L93 Difference]: Finished difference Result 4555 states and 11728 transitions. [2021-05-21 23:56:53,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:56:53,141 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:56:53,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:56:53,145 INFO L225 Difference]: With dead ends: 4555 [2021-05-21 23:56:53,145 INFO L226 Difference]: Without dead ends: 4164 [2021-05-21 23:56:53,145 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 2573.5ms TimeCoverageRelationStatistics Valid=618, Invalid=2922, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:56:53,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4164 states. [2021-05-21 23:56:53,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4164 to 3311. [2021-05-21 23:56:53,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3311 states, 3310 states have (on average 2.5909365558912385) internal successors, (8576), 3310 states have internal predecessors, (8576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:53,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3311 states to 3311 states and 8576 transitions. [2021-05-21 23:56:53,179 INFO L78 Accepts]: Start accepts. Automaton has 3311 states and 8576 transitions. Word has length 119 [2021-05-21 23:56:53,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:56:53,179 INFO L482 AbstractCegarLoop]: Abstraction has 3311 states and 8576 transitions. [2021-05-21 23:56:53,179 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:53,179 INFO L276 IsEmpty]: Start isEmpty. Operand 3311 states and 8576 transitions. [2021-05-21 23:56:53,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:56:53,182 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:56:53,182 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:56:53,182 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-05-21 23:56:53,182 INFO L430 AbstractCegarLoop]: === Iteration 193 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:56:53,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:56:53,182 INFO L82 PathProgramCache]: Analyzing trace with hash 310047511, now seen corresponding path program 151 times [2021-05-21 23:56:53,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:56:53,182 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887472122] [2021-05-21 23:56:53,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:56:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:56:53,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:56:53,773 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:56:53,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887472122] [2021-05-21 23:56:53,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887472122] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:56:53,774 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:56:53,774 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:56:53,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842732365] [2021-05-21 23:56:53,774 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:56:53,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:56:53,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:56:53,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:56:53,774 INFO L87 Difference]: Start difference. First operand 3311 states and 8576 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:56,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:56:56,690 INFO L93 Difference]: Finished difference Result 4270 states and 10921 transitions. [2021-05-21 23:56:56,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-21 23:56:56,690 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:56:56,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:56:56,694 INFO L225 Difference]: With dead ends: 4270 [2021-05-21 23:56:56,694 INFO L226 Difference]: Without dead ends: 3864 [2021-05-21 23:56:56,694 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 2585.4ms TimeCoverageRelationStatistics Valid=639, Invalid=3143, Unknown=0, NotChecked=0, Total=3782 [2021-05-21 23:56:56,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3864 states. [2021-05-21 23:56:56,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3864 to 3011. [2021-05-21 23:56:56,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3011 states, 3010 states have (on average 2.5887043189368772) internal successors, (7792), 3010 states have internal predecessors, (7792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:56,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3011 states to 3011 states and 7792 transitions. [2021-05-21 23:56:56,724 INFO L78 Accepts]: Start accepts. Automaton has 3011 states and 7792 transitions. Word has length 119 [2021-05-21 23:56:56,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:56:56,724 INFO L482 AbstractCegarLoop]: Abstraction has 3011 states and 7792 transitions. [2021-05-21 23:56:56,724 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:56,725 INFO L276 IsEmpty]: Start isEmpty. Operand 3011 states and 7792 transitions. [2021-05-21 23:56:56,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:56:56,726 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:56:56,727 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:56:56,727 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-05-21 23:56:56,727 INFO L430 AbstractCegarLoop]: === Iteration 194 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:56:56,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:56:56,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1293182401, now seen corresponding path program 152 times [2021-05-21 23:56:56,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:56:56,727 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279029131] [2021-05-21 23:56:56,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:56:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:56:57,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:56:57,317 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:56:57,317 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279029131] [2021-05-21 23:56:57,317 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279029131] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:56:57,317 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:56:57,317 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:56:57,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794715054] [2021-05-21 23:56:57,318 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:56:57,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:56:57,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:56:57,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:56:57,318 INFO L87 Difference]: Start difference. First operand 3011 states and 7792 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:56:58,199 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-05-21 23:56:58,846 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-05-21 23:57:00,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:57:00,237 INFO L93 Difference]: Finished difference Result 3627 states and 9214 transitions. [2021-05-21 23:57:00,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:57:00,237 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:57:00,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:57:00,240 INFO L225 Difference]: With dead ends: 3627 [2021-05-21 23:57:00,240 INFO L226 Difference]: Without dead ends: 3447 [2021-05-21 23:57:00,240 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 2504.7ms TimeCoverageRelationStatistics Valid=628, Invalid=2912, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:57:00,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2021-05-21 23:57:00,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 3005. [2021-05-21 23:57:00,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3005 states, 3004 states have (on average 2.5888814913448734) internal successors, (7777), 3004 states have internal predecessors, (7777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:00,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3005 states to 3005 states and 7777 transitions. [2021-05-21 23:57:00,269 INFO L78 Accepts]: Start accepts. Automaton has 3005 states and 7777 transitions. Word has length 119 [2021-05-21 23:57:00,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:57:00,269 INFO L482 AbstractCegarLoop]: Abstraction has 3005 states and 7777 transitions. [2021-05-21 23:57:00,269 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:00,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3005 states and 7777 transitions. [2021-05-21 23:57:00,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:57:00,271 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:57:00,271 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:57:00,272 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-05-21 23:57:00,272 INFO L430 AbstractCegarLoop]: === Iteration 195 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:57:00,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:57:00,272 INFO L82 PathProgramCache]: Analyzing trace with hash -588867087, now seen corresponding path program 153 times [2021-05-21 23:57:00,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:57:00,272 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088136718] [2021-05-21 23:57:00,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:57:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:57:00,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:57:00,877 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:57:00,877 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088136718] [2021-05-21 23:57:00,877 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088136718] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:57:00,878 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:57:00,878 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:57:00,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668527565] [2021-05-21 23:57:00,878 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:57:00,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:57:00,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:57:00,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:57:00,878 INFO L87 Difference]: Start difference. First operand 3005 states and 7777 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:02,241 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-05-21 23:57:03,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:57:03,565 INFO L93 Difference]: Finished difference Result 3507 states and 8864 transitions. [2021-05-21 23:57:03,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-21 23:57:03,565 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:57:03,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:57:03,568 INFO L225 Difference]: With dead ends: 3507 [2021-05-21 23:57:03,568 INFO L226 Difference]: Without dead ends: 3297 [2021-05-21 23:57:03,568 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 2404.6ms TimeCoverageRelationStatistics Valid=601, Invalid=2821, Unknown=0, NotChecked=0, Total=3422 [2021-05-21 23:57:03,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3297 states. [2021-05-21 23:57:03,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3297 to 2995. [2021-05-21 23:57:03,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2995 states, 2994 states have (on average 2.594522378089512) internal successors, (7768), 2994 states have internal predecessors, (7768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:03,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2995 states to 2995 states and 7768 transitions. [2021-05-21 23:57:03,597 INFO L78 Accepts]: Start accepts. Automaton has 2995 states and 7768 transitions. Word has length 119 [2021-05-21 23:57:03,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:57:03,597 INFO L482 AbstractCegarLoop]: Abstraction has 2995 states and 7768 transitions. [2021-05-21 23:57:03,597 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:03,597 INFO L276 IsEmpty]: Start isEmpty. Operand 2995 states and 7768 transitions. [2021-05-21 23:57:03,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:57:03,599 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:57:03,599 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:57:03,599 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-05-21 23:57:03,599 INFO L430 AbstractCegarLoop]: === Iteration 196 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:57:03,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:57:03,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1214591945, now seen corresponding path program 154 times [2021-05-21 23:57:03,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:57:03,600 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796298080] [2021-05-21 23:57:03,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:57:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:57:04,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:57:04,244 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:57:04,244 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796298080] [2021-05-21 23:57:04,244 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796298080] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:57:04,245 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:57:04,245 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:57:04,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341835442] [2021-05-21 23:57:04,245 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:57:04,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:57:04,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:57:04,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:57:04,245 INFO L87 Difference]: Start difference. First operand 2995 states and 7768 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:05,466 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-05-21 23:57:05,635 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-05-21 23:57:07,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:57:07,015 INFO L93 Difference]: Finished difference Result 3451 states and 8756 transitions. [2021-05-21 23:57:07,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-21 23:57:07,016 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:57:07,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:57:07,019 INFO L225 Difference]: With dead ends: 3451 [2021-05-21 23:57:07,019 INFO L226 Difference]: Without dead ends: 3296 [2021-05-21 23:57:07,019 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 2454.6ms TimeCoverageRelationStatistics Valid=604, Invalid=2818, Unknown=0, NotChecked=0, Total=3422 [2021-05-21 23:57:07,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3296 states. [2021-05-21 23:57:07,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3296 to 3001. [2021-05-21 23:57:07,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3001 states, 3000 states have (on average 2.591) internal successors, (7773), 3000 states have internal predecessors, (7773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:07,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3001 states to 3001 states and 7773 transitions. [2021-05-21 23:57:07,049 INFO L78 Accepts]: Start accepts. Automaton has 3001 states and 7773 transitions. Word has length 119 [2021-05-21 23:57:07,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:57:07,049 INFO L482 AbstractCegarLoop]: Abstraction has 3001 states and 7773 transitions. [2021-05-21 23:57:07,049 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:07,049 INFO L276 IsEmpty]: Start isEmpty. Operand 3001 states and 7773 transitions. [2021-05-21 23:57:07,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:57:07,051 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:57:07,051 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:57:07,051 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-05-21 23:57:07,051 INFO L430 AbstractCegarLoop]: === Iteration 197 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:57:07,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:57:07,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1210173805, now seen corresponding path program 155 times [2021-05-21 23:57:07,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:57:07,052 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821757372] [2021-05-21 23:57:07,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:57:07,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:57:07,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:57:07,669 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:57:07,669 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821757372] [2021-05-21 23:57:07,669 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821757372] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:57:07,669 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:57:07,669 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:57:07,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92463890] [2021-05-21 23:57:07,670 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:57:07,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:57:07,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:57:07,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:57:07,670 INFO L87 Difference]: Start difference. First operand 3001 states and 7773 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:08,774 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-05-21 23:57:10,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:57:10,638 INFO L93 Difference]: Finished difference Result 4347 states and 11130 transitions. [2021-05-21 23:57:10,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:57:10,638 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:57:10,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:57:10,642 INFO L225 Difference]: With dead ends: 4347 [2021-05-21 23:57:10,642 INFO L226 Difference]: Without dead ends: 4202 [2021-05-21 23:57:10,642 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 2493.6ms TimeCoverageRelationStatistics Valid=579, Invalid=2961, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:57:10,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4202 states. [2021-05-21 23:57:10,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4202 to 3289. [2021-05-21 23:57:10,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3289 states, 3288 states have (on average 2.605535279805353) internal successors, (8567), 3288 states have internal predecessors, (8567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:10,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3289 states to 3289 states and 8567 transitions. [2021-05-21 23:57:10,675 INFO L78 Accepts]: Start accepts. Automaton has 3289 states and 8567 transitions. Word has length 119 [2021-05-21 23:57:10,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:57:10,675 INFO L482 AbstractCegarLoop]: Abstraction has 3289 states and 8567 transitions. [2021-05-21 23:57:10,675 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:10,675 INFO L276 IsEmpty]: Start isEmpty. Operand 3289 states and 8567 transitions. [2021-05-21 23:57:10,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:57:10,678 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:57:10,678 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:57:10,678 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-05-21 23:57:10,678 INFO L430 AbstractCegarLoop]: === Iteration 198 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:57:10,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:57:10,678 INFO L82 PathProgramCache]: Analyzing trace with hash 735467503, now seen corresponding path program 156 times [2021-05-21 23:57:10,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:57:10,678 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684699214] [2021-05-21 23:57:10,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:57:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:57:11,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:57:11,276 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:57:11,276 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684699214] [2021-05-21 23:57:11,276 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684699214] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:57:11,276 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:57:11,276 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:57:11,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192797013] [2021-05-21 23:57:11,276 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:57:11,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:57:11,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:57:11,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:57:11,277 INFO L87 Difference]: Start difference. First operand 3289 states and 8567 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:14,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:57:14,220 INFO L93 Difference]: Finished difference Result 4682 states and 12014 transitions. [2021-05-21 23:57:14,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-05-21 23:57:14,220 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:57:14,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:57:14,224 INFO L225 Difference]: With dead ends: 4682 [2021-05-21 23:57:14,224 INFO L226 Difference]: Without dead ends: 3900 [2021-05-21 23:57:14,224 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 2601.2ms TimeCoverageRelationStatistics Valid=655, Invalid=3251, Unknown=0, NotChecked=0, Total=3906 [2021-05-21 23:57:14,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3900 states. [2021-05-21 23:57:14,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3900 to 3025. [2021-05-21 23:57:14,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3025 states, 3024 states have (on average 2.5823412698412698) internal successors, (7809), 3024 states have internal predecessors, (7809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:14,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3025 states to 3025 states and 7809 transitions. [2021-05-21 23:57:14,254 INFO L78 Accepts]: Start accepts. Automaton has 3025 states and 7809 transitions. Word has length 119 [2021-05-21 23:57:14,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:57:14,254 INFO L482 AbstractCegarLoop]: Abstraction has 3025 states and 7809 transitions. [2021-05-21 23:57:14,255 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:14,255 INFO L276 IsEmpty]: Start isEmpty. Operand 3025 states and 7809 transitions. [2021-05-21 23:57:14,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:57:14,257 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:57:14,257 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:57:14,257 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-05-21 23:57:14,257 INFO L430 AbstractCegarLoop]: === Iteration 199 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:57:14,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:57:14,257 INFO L82 PathProgramCache]: Analyzing trace with hash 291402841, now seen corresponding path program 157 times [2021-05-21 23:57:14,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:57:14,257 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214522392] [2021-05-21 23:57:14,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:57:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:57:14,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:57:14,874 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:57:14,874 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214522392] [2021-05-21 23:57:14,874 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214522392] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:57:14,874 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:57:14,874 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:57:14,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248164780] [2021-05-21 23:57:14,874 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:57:14,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:57:14,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:57:14,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:57:14,875 INFO L87 Difference]: Start difference. First operand 3025 states and 7809 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:16,276 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-05-21 23:57:17,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:57:17,596 INFO L93 Difference]: Finished difference Result 3661 states and 9292 transitions. [2021-05-21 23:57:17,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:57:17,596 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:57:17,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:57:17,599 INFO L225 Difference]: With dead ends: 3661 [2021-05-21 23:57:17,599 INFO L226 Difference]: Without dead ends: 3454 [2021-05-21 23:57:17,600 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 2437.4ms TimeCoverageRelationStatistics Valid=628, Invalid=2912, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:57:17,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3454 states. [2021-05-21 23:57:17,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3454 to 2965. [2021-05-21 23:57:17,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2965 states, 2964 states have (on average 2.5954790823211877) internal successors, (7693), 2964 states have internal predecessors, (7693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:17,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 7693 transitions. [2021-05-21 23:57:17,638 INFO L78 Accepts]: Start accepts. Automaton has 2965 states and 7693 transitions. Word has length 119 [2021-05-21 23:57:17,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:57:17,638 INFO L482 AbstractCegarLoop]: Abstraction has 2965 states and 7693 transitions. [2021-05-21 23:57:17,638 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:17,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states and 7693 transitions. [2021-05-21 23:57:17,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:57:17,640 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:57:17,640 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:57:17,640 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-05-21 23:57:17,640 INFO L430 AbstractCegarLoop]: === Iteration 200 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:57:17,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:57:17,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1535248097, now seen corresponding path program 158 times [2021-05-21 23:57:17,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:57:17,641 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470409100] [2021-05-21 23:57:17,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:57:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:57:17,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:57:17,864 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:57:17,864 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470409100] [2021-05-21 23:57:17,864 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470409100] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:57:17,864 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:57:17,864 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-05-21 23:57:17,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138645492] [2021-05-21 23:57:17,864 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-21 23:57:17,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:57:17,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-21 23:57:17,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:57:17,864 INFO L87 Difference]: Start difference. First operand 2965 states and 7693 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:18,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:57:18,340 INFO L93 Difference]: Finished difference Result 3573 states and 8938 transitions. [2021-05-21 23:57:18,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-21 23:57:18,340 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:57:18,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:57:18,343 INFO L225 Difference]: With dead ends: 3573 [2021-05-21 23:57:18,343 INFO L226 Difference]: Without dead ends: 3517 [2021-05-21 23:57:18,343 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 404.2ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-05-21 23:57:18,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3517 states. [2021-05-21 23:57:18,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3517 to 2775. [2021-05-21 23:57:18,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2775 states, 2774 states have (on average 2.5847152126892574) internal successors, (7170), 2774 states have internal predecessors, (7170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:18,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 7170 transitions. [2021-05-21 23:57:18,371 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 7170 transitions. Word has length 119 [2021-05-21 23:57:18,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:57:18,372 INFO L482 AbstractCegarLoop]: Abstraction has 2775 states and 7170 transitions. [2021-05-21 23:57:18,372 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:18,372 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 7170 transitions. [2021-05-21 23:57:18,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:57:18,374 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:57:18,374 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:57:18,374 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-05-21 23:57:18,374 INFO L430 AbstractCegarLoop]: === Iteration 201 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:57:18,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:57:18,374 INFO L82 PathProgramCache]: Analyzing trace with hash -290631401, now seen corresponding path program 159 times [2021-05-21 23:57:18,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:57:18,374 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487873308] [2021-05-21 23:57:18,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:57:18,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:57:18,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:57:18,960 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:57:18,960 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487873308] [2021-05-21 23:57:18,960 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487873308] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:57:18,960 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:57:18,960 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:57:18,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774617399] [2021-05-21 23:57:18,960 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:57:18,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:57:18,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:57:18,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:57:18,961 INFO L87 Difference]: Start difference. First operand 2775 states and 7170 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:20,320 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-05-21 23:57:21,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:57:21,175 INFO L93 Difference]: Finished difference Result 2918 states and 7427 transitions. [2021-05-21 23:57:21,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:57:21,176 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:57:21,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:57:21,178 INFO L225 Difference]: With dead ends: 2918 [2021-05-21 23:57:21,178 INFO L226 Difference]: Without dead ends: 2815 [2021-05-21 23:57:21,178 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 1925.8ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:57:21,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2021-05-21 23:57:21,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2785. [2021-05-21 23:57:21,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2785 states, 2784 states have (on average 2.581537356321839) internal successors, (7187), 2784 states have internal predecessors, (7187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:21,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 7187 transitions. [2021-05-21 23:57:21,205 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 7187 transitions. Word has length 119 [2021-05-21 23:57:21,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:57:21,206 INFO L482 AbstractCegarLoop]: Abstraction has 2785 states and 7187 transitions. [2021-05-21 23:57:21,206 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:21,206 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 7187 transitions. [2021-05-21 23:57:21,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:57:21,208 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:57:21,208 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:57:21,208 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-05-21 23:57:21,208 INFO L430 AbstractCegarLoop]: === Iteration 202 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:57:21,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:57:21,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1831846923, now seen corresponding path program 160 times [2021-05-21 23:57:21,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:57:21,208 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509079296] [2021-05-21 23:57:21,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:57:21,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:57:21,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:57:21,816 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:57:21,816 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509079296] [2021-05-21 23:57:21,816 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509079296] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:57:21,817 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:57:21,817 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:57:21,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315112443] [2021-05-21 23:57:21,817 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:57:21,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:57:21,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:57:21,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:57:21,817 INFO L87 Difference]: Start difference. First operand 2785 states and 7187 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:24,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:57:24,123 INFO L93 Difference]: Finished difference Result 2952 states and 7500 transitions. [2021-05-21 23:57:24,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-21 23:57:24,124 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:57:24,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:57:24,126 INFO L225 Difference]: With dead ends: 2952 [2021-05-21 23:57:24,126 INFO L226 Difference]: Without dead ends: 2847 [2021-05-21 23:57:24,126 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 2079.4ms TimeCoverageRelationStatistics Valid=452, Invalid=2304, Unknown=0, NotChecked=0, Total=2756 [2021-05-21 23:57:24,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2847 states. [2021-05-21 23:57:24,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2847 to 2787. [2021-05-21 23:57:24,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2786 states have (on average 2.5807609475951185) internal successors, (7190), 2786 states have internal predecessors, (7190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:24,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 7190 transitions. [2021-05-21 23:57:24,151 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 7190 transitions. Word has length 119 [2021-05-21 23:57:24,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:57:24,151 INFO L482 AbstractCegarLoop]: Abstraction has 2787 states and 7190 transitions. [2021-05-21 23:57:24,151 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:24,151 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 7190 transitions. [2021-05-21 23:57:24,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:57:24,153 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:57:24,153 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:57:24,153 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-05-21 23:57:24,153 INFO L430 AbstractCegarLoop]: === Iteration 203 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:57:24,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:57:24,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1418078527, now seen corresponding path program 161 times [2021-05-21 23:57:24,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:57:24,153 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896082215] [2021-05-21 23:57:24,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:57:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:57:24,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:57:24,770 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:57:24,770 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896082215] [2021-05-21 23:57:24,770 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896082215] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:57:24,770 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:57:24,770 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:57:24,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732371686] [2021-05-21 23:57:24,770 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:57:24,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:57:24,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:57:24,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:57:24,771 INFO L87 Difference]: Start difference. First operand 2787 states and 7190 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:26,087 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-05-21 23:57:26,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:57:26,920 INFO L93 Difference]: Finished difference Result 2908 states and 7404 transitions. [2021-05-21 23:57:26,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:57:26,920 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:57:26,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:57:26,923 INFO L225 Difference]: With dead ends: 2908 [2021-05-21 23:57:26,923 INFO L226 Difference]: Without dead ends: 2803 [2021-05-21 23:57:26,923 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 1934.6ms TimeCoverageRelationStatistics Valid=451, Invalid=2201, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:57:26,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2021-05-21 23:57:26,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 2779. [2021-05-21 23:57:26,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2779 states, 2778 states have (on average 2.58207343412527) internal successors, (7173), 2778 states have internal predecessors, (7173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:26,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2779 states to 2779 states and 7173 transitions. [2021-05-21 23:57:26,948 INFO L78 Accepts]: Start accepts. Automaton has 2779 states and 7173 transitions. Word has length 119 [2021-05-21 23:57:26,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:57:26,948 INFO L482 AbstractCegarLoop]: Abstraction has 2779 states and 7173 transitions. [2021-05-21 23:57:26,948 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:26,949 INFO L276 IsEmpty]: Start isEmpty. Operand 2779 states and 7173 transitions. [2021-05-21 23:57:26,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:57:26,950 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:57:26,951 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:57:26,951 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-05-21 23:57:26,951 INFO L430 AbstractCegarLoop]: === Iteration 204 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:57:26,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:57:26,951 INFO L82 PathProgramCache]: Analyzing trace with hash -624725047, now seen corresponding path program 162 times [2021-05-21 23:57:26,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:57:26,951 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195702100] [2021-05-21 23:57:26,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:57:26,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:57:27,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:57:27,540 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:57:27,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195702100] [2021-05-21 23:57:27,541 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195702100] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:57:27,541 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:57:27,541 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:57:27,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606041482] [2021-05-21 23:57:27,541 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:57:27,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:57:27,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:57:27,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:57:27,541 INFO L87 Difference]: Start difference. First operand 2779 states and 7173 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:29,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:57:29,819 INFO L93 Difference]: Finished difference Result 3390 states and 8642 transitions. [2021-05-21 23:57:29,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-21 23:57:29,820 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:57:29,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:57:29,823 INFO L225 Difference]: With dead ends: 3390 [2021-05-21 23:57:29,823 INFO L226 Difference]: Without dead ends: 3295 [2021-05-21 23:57:29,823 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 2014.8ms TimeCoverageRelationStatistics Valid=464, Invalid=2398, Unknown=0, NotChecked=0, Total=2862 [2021-05-21 23:57:29,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3295 states. [2021-05-21 23:57:29,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3295 to 2983. [2021-05-21 23:57:29,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2983 states, 2982 states have (on average 2.5778001341381622) internal successors, (7687), 2982 states have internal predecessors, (7687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:29,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2983 states to 2983 states and 7687 transitions. [2021-05-21 23:57:29,851 INFO L78 Accepts]: Start accepts. Automaton has 2983 states and 7687 transitions. Word has length 119 [2021-05-21 23:57:29,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:57:29,851 INFO L482 AbstractCegarLoop]: Abstraction has 2983 states and 7687 transitions. [2021-05-21 23:57:29,851 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:29,851 INFO L276 IsEmpty]: Start isEmpty. Operand 2983 states and 7687 transitions. [2021-05-21 23:57:29,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:57:29,853 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:57:29,853 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:57:29,853 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-05-21 23:57:29,853 INFO L430 AbstractCegarLoop]: === Iteration 205 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:57:29,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:57:29,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1099431349, now seen corresponding path program 163 times [2021-05-21 23:57:29,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:57:29,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990144408] [2021-05-21 23:57:29,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:57:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:57:30,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:57:30,460 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:57:30,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990144408] [2021-05-21 23:57:30,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990144408] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:57:30,460 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:57:30,460 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:57:30,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179131694] [2021-05-21 23:57:30,461 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:57:30,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:57:30,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:57:30,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:57:30,461 INFO L87 Difference]: Start difference. First operand 2983 states and 7687 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:32,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:57:32,963 INFO L93 Difference]: Finished difference Result 3613 states and 9145 transitions. [2021-05-21 23:57:32,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-21 23:57:32,963 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:57:32,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:57:32,966 INFO L225 Difference]: With dead ends: 3613 [2021-05-21 23:57:32,966 INFO L226 Difference]: Without dead ends: 3118 [2021-05-21 23:57:32,966 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 2196.9ms TimeCoverageRelationStatistics Valid=511, Invalid=2681, Unknown=0, NotChecked=0, Total=3192 [2021-05-21 23:57:32,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3118 states. [2021-05-21 23:57:32,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3118 to 2815. [2021-05-21 23:57:32,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 2814 states have (on average 2.5618336886993602) internal successors, (7209), 2814 states have internal predecessors, (7209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:32,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 7209 transitions. [2021-05-21 23:57:32,992 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 7209 transitions. Word has length 119 [2021-05-21 23:57:32,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:57:32,992 INFO L482 AbstractCegarLoop]: Abstraction has 2815 states and 7209 transitions. [2021-05-21 23:57:32,992 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:32,992 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 7209 transitions. [2021-05-21 23:57:32,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:57:32,994 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:57:32,994 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:57:32,994 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-05-21 23:57:32,994 INFO L430 AbstractCegarLoop]: === Iteration 206 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:57:32,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:57:32,994 INFO L82 PathProgramCache]: Analyzing trace with hash 135546217, now seen corresponding path program 164 times [2021-05-21 23:57:32,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:57:32,995 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915939668] [2021-05-21 23:57:32,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:57:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:57:33,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:57:33,565 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:57:33,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915939668] [2021-05-21 23:57:33,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915939668] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:57:33,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:57:33,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:57:33,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607062701] [2021-05-21 23:57:33,566 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:57:33,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:57:33,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:57:33,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:57:33,566 INFO L87 Difference]: Start difference. First operand 2815 states and 7209 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:35,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:57:35,843 INFO L93 Difference]: Finished difference Result 3190 states and 8064 transitions. [2021-05-21 23:57:35,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-21 23:57:35,843 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:57:35,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:57:35,846 INFO L225 Difference]: With dead ends: 3190 [2021-05-21 23:57:35,846 INFO L226 Difference]: Without dead ends: 3025 [2021-05-21 23:57:35,846 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 2031.5ms TimeCoverageRelationStatistics Valid=464, Invalid=2398, Unknown=0, NotChecked=0, Total=2862 [2021-05-21 23:57:35,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3025 states. [2021-05-21 23:57:35,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3025 to 2755. [2021-05-21 23:57:35,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 2754 states have (on average 2.574074074074074) internal successors, (7089), 2754 states have internal predecessors, (7089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:35,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 7089 transitions. [2021-05-21 23:57:35,872 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 7089 transitions. Word has length 119 [2021-05-21 23:57:35,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:57:35,872 INFO L482 AbstractCegarLoop]: Abstraction has 2755 states and 7089 transitions. [2021-05-21 23:57:35,872 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:35,872 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 7089 transitions. [2021-05-21 23:57:35,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:57:35,874 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:57:35,874 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:57:35,874 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-05-21 23:57:35,874 INFO L430 AbstractCegarLoop]: === Iteration 207 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:57:35,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:57:35,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1175804925, now seen corresponding path program 165 times [2021-05-21 23:57:35,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:57:35,874 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753094681] [2021-05-21 23:57:35,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:57:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:57:36,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:57:36,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:57:36,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753094681] [2021-05-21 23:57:36,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753094681] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:57:36,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:57:36,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:57:36,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385294823] [2021-05-21 23:57:36,462 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:57:36,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:57:36,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:57:36,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:57:36,463 INFO L87 Difference]: Start difference. First operand 2755 states and 7089 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:38,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:57:38,900 INFO L93 Difference]: Finished difference Result 3092 states and 7859 transitions. [2021-05-21 23:57:38,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-21 23:57:38,900 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:57:38,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:57:38,903 INFO L225 Difference]: With dead ends: 3092 [2021-05-21 23:57:38,903 INFO L226 Difference]: Without dead ends: 2997 [2021-05-21 23:57:38,903 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 2164.7ms TimeCoverageRelationStatistics Valid=489, Invalid=2481, Unknown=0, NotChecked=0, Total=2970 [2021-05-21 23:57:38,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states. [2021-05-21 23:57:38,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 2899. [2021-05-21 23:57:38,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2899 states, 2898 states have (on average 2.5738440303657697) internal successors, (7459), 2898 states have internal predecessors, (7459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:38,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2899 states to 2899 states and 7459 transitions. [2021-05-21 23:57:38,929 INFO L78 Accepts]: Start accepts. Automaton has 2899 states and 7459 transitions. Word has length 119 [2021-05-21 23:57:38,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:57:38,929 INFO L482 AbstractCegarLoop]: Abstraction has 2899 states and 7459 transitions. [2021-05-21 23:57:38,929 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:38,929 INFO L276 IsEmpty]: Start isEmpty. Operand 2899 states and 7459 transitions. [2021-05-21 23:57:38,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:57:38,931 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:57:38,931 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:57:38,931 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-05-21 23:57:38,931 INFO L430 AbstractCegarLoop]: === Iteration 208 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:57:38,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:57:38,931 INFO L82 PathProgramCache]: Analyzing trace with hash 701098623, now seen corresponding path program 166 times [2021-05-21 23:57:38,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:57:38,931 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288600207] [2021-05-21 23:57:38,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:57:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:57:39,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:57:39,541 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:57:39,541 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288600207] [2021-05-21 23:57:39,541 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288600207] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:57:39,541 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:57:39,541 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:57:39,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701045445] [2021-05-21 23:57:39,541 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:57:39,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:57:39,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:57:39,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:57:39,542 INFO L87 Difference]: Start difference. First operand 2899 states and 7459 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:42,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:57:42,059 INFO L93 Difference]: Finished difference Result 3315 states and 8362 transitions. [2021-05-21 23:57:42,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-21 23:57:42,059 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:57:42,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:57:42,062 INFO L225 Difference]: With dead ends: 3315 [2021-05-21 23:57:42,062 INFO L226 Difference]: Without dead ends: 2820 [2021-05-21 23:57:42,062 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 2318.0ms TimeCoverageRelationStatistics Valid=536, Invalid=2770, Unknown=0, NotChecked=0, Total=3306 [2021-05-21 23:57:42,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2021-05-21 23:57:42,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2731. [2021-05-21 23:57:42,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2731 states, 2730 states have (on average 2.574725274725275) internal successors, (7029), 2730 states have internal predecessors, (7029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:42,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2731 states to 2731 states and 7029 transitions. [2021-05-21 23:57:42,086 INFO L78 Accepts]: Start accepts. Automaton has 2731 states and 7029 transitions. Word has length 119 [2021-05-21 23:57:42,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:57:42,086 INFO L482 AbstractCegarLoop]: Abstraction has 2731 states and 7029 transitions. [2021-05-21 23:57:42,086 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:42,086 INFO L276 IsEmpty]: Start isEmpty. Operand 2731 states and 7029 transitions. [2021-05-21 23:57:42,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:57:42,088 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:57:42,088 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:57:42,088 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-05-21 23:57:42,088 INFO L430 AbstractCegarLoop]: === Iteration 209 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:57:42,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:57:42,088 INFO L82 PathProgramCache]: Analyzing trace with hash 257033961, now seen corresponding path program 167 times [2021-05-21 23:57:42,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:57:42,088 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617785355] [2021-05-21 23:57:42,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:57:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:57:42,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:57:42,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:57:42,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617785355] [2021-05-21 23:57:42,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617785355] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:57:42,691 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:57:42,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:57:42,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520336584] [2021-05-21 23:57:42,692 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:57:42,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:57:42,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:57:42,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:57:42,692 INFO L87 Difference]: Start difference. First operand 2731 states and 7029 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:43,992 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-05-21 23:57:44,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:57:44,998 INFO L93 Difference]: Finished difference Result 2850 states and 7238 transitions. [2021-05-21 23:57:44,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-21 23:57:44,999 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:57:44,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:57:45,001 INFO L225 Difference]: With dead ends: 2850 [2021-05-21 23:57:45,001 INFO L226 Difference]: Without dead ends: 2741 [2021-05-21 23:57:45,002 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 2157.7ms TimeCoverageRelationStatistics Valid=484, Invalid=2378, Unknown=0, NotChecked=0, Total=2862 [2021-05-21 23:57:45,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2021-05-21 23:57:45,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 2719. [2021-05-21 23:57:45,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2719 states, 2718 states have (on average 2.577262693156733) internal successors, (7005), 2718 states have internal predecessors, (7005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:45,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2719 states to 2719 states and 7005 transitions. [2021-05-21 23:57:45,027 INFO L78 Accepts]: Start accepts. Automaton has 2719 states and 7005 transitions. Word has length 119 [2021-05-21 23:57:45,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:57:45,027 INFO L482 AbstractCegarLoop]: Abstraction has 2719 states and 7005 transitions. [2021-05-21 23:57:45,027 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:45,027 INFO L276 IsEmpty]: Start isEmpty. Operand 2719 states and 7005 transitions. [2021-05-21 23:57:45,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:57:45,029 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:57:45,029 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:57:45,029 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-05-21 23:57:45,029 INFO L430 AbstractCegarLoop]: === Iteration 210 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:57:45,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:57:45,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1718417405, now seen corresponding path program 168 times [2021-05-21 23:57:45,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:57:45,029 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462012450] [2021-05-21 23:57:45,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:57:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:57:45,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:57:45,595 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:57:45,595 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462012450] [2021-05-21 23:57:45,595 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462012450] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:57:45,595 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:57:45,595 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:57:45,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548485735] [2021-05-21 23:57:45,595 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:57:45,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:57:45,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:57:45,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:57:45,595 INFO L87 Difference]: Start difference. First operand 2719 states and 7005 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:47,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:57:47,868 INFO L93 Difference]: Finished difference Result 2880 states and 7307 transitions. [2021-05-21 23:57:47,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-21 23:57:47,869 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:57:47,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:57:47,871 INFO L225 Difference]: With dead ends: 2880 [2021-05-21 23:57:47,871 INFO L226 Difference]: Without dead ends: 2775 [2021-05-21 23:57:47,872 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 2059.6ms TimeCoverageRelationStatistics Valid=471, Invalid=2391, Unknown=0, NotChecked=0, Total=2862 [2021-05-21 23:57:47,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2775 states. [2021-05-21 23:57:47,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2775 to 2721. [2021-05-21 23:57:47,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2721 states, 2720 states have (on average 2.5764705882352943) internal successors, (7008), 2720 states have internal predecessors, (7008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:47,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 7008 transitions. [2021-05-21 23:57:47,896 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 7008 transitions. Word has length 119 [2021-05-21 23:57:47,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:57:47,896 INFO L482 AbstractCegarLoop]: Abstraction has 2721 states and 7008 transitions. [2021-05-21 23:57:47,896 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:47,897 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 7008 transitions. [2021-05-21 23:57:47,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:57:47,898 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:57:47,898 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:57:47,898 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-05-21 23:57:47,898 INFO L430 AbstractCegarLoop]: === Iteration 211 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:57:47,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:57:47,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1776499017, now seen corresponding path program 169 times [2021-05-21 23:57:47,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:57:47,899 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713471628] [2021-05-21 23:57:47,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:57:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:57:48,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:57:48,505 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:57:48,505 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713471628] [2021-05-21 23:57:48,505 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713471628] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:57:48,505 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:57:48,505 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:57:48,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110126959] [2021-05-21 23:57:48,506 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:57:48,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:57:48,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:57:48,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:57:48,506 INFO L87 Difference]: Start difference. First operand 2721 states and 7008 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:49,411 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-05-21 23:57:49,777 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-05-21 23:57:50,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:57:50,678 INFO L93 Difference]: Finished difference Result 2836 states and 7211 transitions. [2021-05-21 23:57:50,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-21 23:57:50,678 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:57:50,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:57:50,680 INFO L225 Difference]: With dead ends: 2836 [2021-05-21 23:57:50,680 INFO L226 Difference]: Without dead ends: 2689 [2021-05-21 23:57:50,681 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 2087.2ms TimeCoverageRelationStatistics Valid=466, Invalid=2290, Unknown=0, NotChecked=0, Total=2756 [2021-05-21 23:57:50,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2689 states. [2021-05-21 23:57:50,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2689 to 2671. [2021-05-21 23:57:50,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2671 states, 2670 states have (on average 2.58876404494382) internal successors, (6912), 2670 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:50,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2671 states to 2671 states and 6912 transitions. [2021-05-21 23:57:50,703 INFO L78 Accepts]: Start accepts. Automaton has 2671 states and 6912 transitions. Word has length 119 [2021-05-21 23:57:50,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:57:50,704 INFO L482 AbstractCegarLoop]: Abstraction has 2671 states and 6912 transitions. [2021-05-21 23:57:50,704 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:50,704 INFO L276 IsEmpty]: Start isEmpty. Operand 2671 states and 6912 transitions. [2021-05-21 23:57:50,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:57:50,705 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:57:50,705 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:57:50,706 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-05-21 23:57:50,706 INFO L430 AbstractCegarLoop]: === Iteration 212 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:57:50,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:57:50,706 INFO L82 PathProgramCache]: Analyzing trace with hash -2049675987, now seen corresponding path program 170 times [2021-05-21 23:57:50,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:57:50,706 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012913539] [2021-05-21 23:57:50,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:57:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:57:51,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:57:51,289 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:57:51,289 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012913539] [2021-05-21 23:57:51,289 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012913539] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:57:51,289 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:57:51,289 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:57:51,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125915083] [2021-05-21 23:57:51,290 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:57:51,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:57:51,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:57:51,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:57:51,290 INFO L87 Difference]: Start difference. First operand 2671 states and 6912 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:52,584 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-05-21 23:57:53,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:57:53,427 INFO L93 Difference]: Finished difference Result 2825 states and 7191 transitions. [2021-05-21 23:57:53,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:57:53,428 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:57:53,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:57:53,430 INFO L225 Difference]: With dead ends: 2825 [2021-05-21 23:57:53,430 INFO L226 Difference]: Without dead ends: 2671 [2021-05-21 23:57:53,430 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 2002.5ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:57:53,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2021-05-21 23:57:53,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2655. [2021-05-21 23:57:53,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2655 states, 2654 states have (on average 2.593067068575735) internal successors, (6882), 2654 states have internal predecessors, (6882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:53,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2655 states to 2655 states and 6882 transitions. [2021-05-21 23:57:53,453 INFO L78 Accepts]: Start accepts. Automaton has 2655 states and 6882 transitions. Word has length 119 [2021-05-21 23:57:53,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:57:53,453 INFO L482 AbstractCegarLoop]: Abstraction has 2655 states and 6882 transitions. [2021-05-21 23:57:53,453 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:53,453 INFO L276 IsEmpty]: Start isEmpty. Operand 2655 states and 6882 transitions. [2021-05-21 23:57:53,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:57:53,455 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:57:53,455 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:57:53,455 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-05-21 23:57:53,455 INFO L430 AbstractCegarLoop]: === Iteration 213 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:57:53,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:57:53,455 INFO L82 PathProgramCache]: Analyzing trace with hash 61417919, now seen corresponding path program 171 times [2021-05-21 23:57:53,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:57:53,455 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538227994] [2021-05-21 23:57:53,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:57:53,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:57:54,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:57:54,049 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:57:54,049 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538227994] [2021-05-21 23:57:54,049 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538227994] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:57:54,049 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:57:54,049 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:57:54,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569303836] [2021-05-21 23:57:54,049 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:57:54,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:57:54,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:57:54,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:57:54,050 INFO L87 Difference]: Start difference. First operand 2655 states and 6882 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:55,211 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-05-21 23:57:55,418 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-05-21 23:57:56,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:57:56,266 INFO L93 Difference]: Finished difference Result 2903 states and 7378 transitions. [2021-05-21 23:57:56,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:57:56,266 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:57:56,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:57:56,268 INFO L225 Difference]: With dead ends: 2903 [2021-05-21 23:57:56,268 INFO L226 Difference]: Without dead ends: 2765 [2021-05-21 23:57:56,268 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 1952.5ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:57:56,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2765 states. [2021-05-21 23:57:56,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2765 to 2667. [2021-05-21 23:57:56,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2666 states have (on average 2.589647411852963) internal successors, (6904), 2666 states have internal predecessors, (6904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:56,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 6904 transitions. [2021-05-21 23:57:56,291 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 6904 transitions. Word has length 119 [2021-05-21 23:57:56,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:57:56,292 INFO L482 AbstractCegarLoop]: Abstraction has 2667 states and 6904 transitions. [2021-05-21 23:57:56,292 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:56,292 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 6904 transitions. [2021-05-21 23:57:56,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:57:56,294 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:57:56,294 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:57:56,294 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-05-21 23:57:56,294 INFO L430 AbstractCegarLoop]: === Iteration 214 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:57:56,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:57:56,294 INFO L82 PathProgramCache]: Analyzing trace with hash 580778689, now seen corresponding path program 172 times [2021-05-21 23:57:56,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:57:56,294 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3411601] [2021-05-21 23:57:56,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:57:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:57:56,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:57:56,900 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:57:56,900 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3411601] [2021-05-21 23:57:56,900 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3411601] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:57:56,901 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:57:56,901 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:57:56,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670682912] [2021-05-21 23:57:56,901 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:57:56,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:57:56,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:57:56,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:57:56,901 INFO L87 Difference]: Start difference. First operand 2667 states and 6904 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:58,210 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-05-21 23:57:59,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:57:59,312 INFO L93 Difference]: Finished difference Result 2927 states and 7438 transitions. [2021-05-21 23:57:59,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-21 23:57:59,313 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:57:59,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:57:59,315 INFO L225 Difference]: With dead ends: 2927 [2021-05-21 23:57:59,315 INFO L226 Difference]: Without dead ends: 2795 [2021-05-21 23:57:59,315 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 2131.2ms TimeCoverageRelationStatistics Valid=481, Invalid=2381, Unknown=0, NotChecked=0, Total=2862 [2021-05-21 23:57:59,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2795 states. [2021-05-21 23:57:59,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2795 to 2669. [2021-05-21 23:57:59,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2669 states, 2668 states have (on average 2.588830584707646) internal successors, (6907), 2668 states have internal predecessors, (6907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:59,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 6907 transitions. [2021-05-21 23:57:59,338 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 6907 transitions. Word has length 119 [2021-05-21 23:57:59,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:57:59,338 INFO L482 AbstractCegarLoop]: Abstraction has 2669 states and 6907 transitions. [2021-05-21 23:57:59,338 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:57:59,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 6907 transitions. [2021-05-21 23:57:59,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:57:59,339 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:57:59,340 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:57:59,340 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-05-21 23:57:59,340 INFO L430 AbstractCegarLoop]: === Iteration 215 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:57:59,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:57:59,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1734336803, now seen corresponding path program 173 times [2021-05-21 23:57:59,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:57:59,340 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517858218] [2021-05-21 23:57:59,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:57:59,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:57:59,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:57:59,955 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:57:59,956 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517858218] [2021-05-21 23:57:59,956 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517858218] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:57:59,956 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:57:59,956 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:57:59,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146809565] [2021-05-21 23:57:59,956 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:57:59,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:57:59,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:57:59,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:57:59,956 INFO L87 Difference]: Start difference. First operand 2669 states and 6907 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:02,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:58:02,425 INFO L93 Difference]: Finished difference Result 3096 states and 7769 transitions. [2021-05-21 23:58:02,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-05-21 23:58:02,425 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:58:02,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:58:02,427 INFO L225 Difference]: With dead ends: 3096 [2021-05-21 23:58:02,427 INFO L226 Difference]: Without dead ends: 2943 [2021-05-21 23:58:02,427 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 550 ImplicationChecksByTransitivity, 2227.3ms TimeCoverageRelationStatistics Valid=536, Invalid=2656, Unknown=0, NotChecked=0, Total=3192 [2021-05-21 23:58:02,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2943 states. [2021-05-21 23:58:02,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2943 to 2661. [2021-05-21 23:58:02,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 2660 states have (on average 2.5913533834586464) internal successors, (6893), 2660 states have internal predecessors, (6893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:02,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 6893 transitions. [2021-05-21 23:58:02,450 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 6893 transitions. Word has length 119 [2021-05-21 23:58:02,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:58:02,450 INFO L482 AbstractCegarLoop]: Abstraction has 2661 states and 6893 transitions. [2021-05-21 23:58:02,451 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:02,451 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 6893 transitions. [2021-05-21 23:58:02,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:58:02,452 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:58:02,452 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:58:02,452 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-05-21 23:58:02,453 INFO L430 AbstractCegarLoop]: === Iteration 216 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:58:02,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:58:02,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1693291895, now seen corresponding path program 174 times [2021-05-21 23:58:02,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:58:02,453 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133736621] [2021-05-21 23:58:02,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:58:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:58:03,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:58:03,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:58:03,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133736621] [2021-05-21 23:58:03,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133736621] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:58:03,068 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:58:03,068 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:58:03,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436131187] [2021-05-21 23:58:03,068 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:58:03,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:58:03,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:58:03,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:58:03,069 INFO L87 Difference]: Start difference. First operand 2661 states and 6893 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:04,292 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-05-21 23:58:05,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:58:05,097 INFO L93 Difference]: Finished difference Result 2850 states and 7269 transitions. [2021-05-21 23:58:05,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:58:05,098 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:58:05,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:58:05,100 INFO L225 Difference]: With dead ends: 2850 [2021-05-21 23:58:05,101 INFO L226 Difference]: Without dead ends: 2743 [2021-05-21 23:58:05,101 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 1912.2ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:58:05,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2743 states. [2021-05-21 23:58:05,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2743 to 2657. [2021-05-21 23:58:05,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2657 states, 2656 states have (on average 2.5922439759036147) internal successors, (6885), 2656 states have internal predecessors, (6885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:05,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2657 states to 2657 states and 6885 transitions. [2021-05-21 23:58:05,125 INFO L78 Accepts]: Start accepts. Automaton has 2657 states and 6885 transitions. Word has length 119 [2021-05-21 23:58:05,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:58:05,125 INFO L482 AbstractCegarLoop]: Abstraction has 2657 states and 6885 transitions. [2021-05-21 23:58:05,125 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:05,125 INFO L276 IsEmpty]: Start isEmpty. Operand 2657 states and 6885 transitions. [2021-05-21 23:58:05,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:58:05,127 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:58:05,127 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:58:05,127 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-05-21 23:58:05,127 INFO L430 AbstractCegarLoop]: === Iteration 217 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:58:05,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:58:05,127 INFO L82 PathProgramCache]: Analyzing trace with hash 373296891, now seen corresponding path program 175 times [2021-05-21 23:58:05,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:58:05,128 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493674995] [2021-05-21 23:58:05,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:58:05,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:58:05,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:58:05,741 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:58:05,742 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493674995] [2021-05-21 23:58:05,742 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493674995] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:58:05,742 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:58:05,742 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:58:05,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386426642] [2021-05-21 23:58:05,742 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:58:05,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:58:05,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:58:05,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:58:05,742 INFO L87 Difference]: Start difference. First operand 2657 states and 6885 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:06,839 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-05-21 23:58:07,174 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-05-21 23:58:08,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:58:08,047 INFO L93 Difference]: Finished difference Result 2851 states and 7260 transitions. [2021-05-21 23:58:08,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:58:08,047 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:58:08,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:58:08,049 INFO L225 Difference]: With dead ends: 2851 [2021-05-21 23:58:08,049 INFO L226 Difference]: Without dead ends: 2713 [2021-05-21 23:58:08,050 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 2128.4ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:58:08,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2021-05-21 23:58:08,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 2661. [2021-05-21 23:58:08,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2661 states, 2660 states have (on average 2.5913533834586464) internal successors, (6893), 2660 states have internal predecessors, (6893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:08,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 6893 transitions. [2021-05-21 23:58:08,073 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 6893 transitions. Word has length 119 [2021-05-21 23:58:08,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:58:08,073 INFO L482 AbstractCegarLoop]: Abstraction has 2661 states and 6893 transitions. [2021-05-21 23:58:08,073 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:08,074 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 6893 transitions. [2021-05-21 23:58:08,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:58:08,075 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:58:08,075 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:58:08,075 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-05-21 23:58:08,075 INFO L430 AbstractCegarLoop]: === Iteration 218 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:58:08,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:58:08,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1499705475, now seen corresponding path program 176 times [2021-05-21 23:58:08,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:58:08,076 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180452161] [2021-05-21 23:58:08,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:58:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:58:08,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:58:08,708 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:58:08,708 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180452161] [2021-05-21 23:58:08,708 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180452161] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:58:08,709 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:58:08,709 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:58:08,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471701602] [2021-05-21 23:58:08,709 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:58:08,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:58:08,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:58:08,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:58:08,709 INFO L87 Difference]: Start difference. First operand 2661 states and 6893 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:09,968 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-05-21 23:58:10,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:58:10,750 INFO L93 Difference]: Finished difference Result 2810 states and 7179 transitions. [2021-05-21 23:58:10,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:58:10,751 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:58:10,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:58:10,753 INFO L225 Difference]: With dead ends: 2810 [2021-05-21 23:58:10,753 INFO L226 Difference]: Without dead ends: 2705 [2021-05-21 23:58:10,753 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 1927.0ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:58:10,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2021-05-21 23:58:10,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 2665. [2021-05-21 23:58:10,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2665 states, 2664 states have (on average 2.588963963963964) internal successors, (6897), 2664 states have internal predecessors, (6897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:10,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 6897 transitions. [2021-05-21 23:58:10,776 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 6897 transitions. Word has length 119 [2021-05-21 23:58:10,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:58:10,777 INFO L482 AbstractCegarLoop]: Abstraction has 2665 states and 6897 transitions. [2021-05-21 23:58:10,777 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:10,777 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 6897 transitions. [2021-05-21 23:58:10,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:58:10,778 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:58:10,778 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:58:10,779 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-05-21 23:58:10,779 INFO L430 AbstractCegarLoop]: === Iteration 219 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:58:10,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:58:10,779 INFO L82 PathProgramCache]: Analyzing trace with hash 843006233, now seen corresponding path program 177 times [2021-05-21 23:58:10,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:58:10,779 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708318604] [2021-05-21 23:58:10,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:58:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:58:11,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:58:11,387 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:58:11,387 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708318604] [2021-05-21 23:58:11,387 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708318604] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:58:11,388 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:58:11,388 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:58:11,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261074229] [2021-05-21 23:58:11,388 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:58:11,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:58:11,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:58:11,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:58:11,388 INFO L87 Difference]: Start difference. First operand 2665 states and 6897 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:13,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:58:13,530 INFO L93 Difference]: Finished difference Result 2844 states and 7250 transitions. [2021-05-21 23:58:13,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-21 23:58:13,531 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:58:13,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:58:13,533 INFO L225 Difference]: With dead ends: 2844 [2021-05-21 23:58:13,533 INFO L226 Difference]: Without dead ends: 2739 [2021-05-21 23:58:13,533 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 1982.1ms TimeCoverageRelationStatistics Valid=455, Invalid=2301, Unknown=0, NotChecked=0, Total=2756 [2021-05-21 23:58:13,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2739 states. [2021-05-21 23:58:13,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2739 to 2667. [2021-05-21 23:58:13,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2667 states, 2666 states have (on average 2.5881470367591897) internal successors, (6900), 2666 states have internal predecessors, (6900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:13,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2667 states to 2667 states and 6900 transitions. [2021-05-21 23:58:13,557 INFO L78 Accepts]: Start accepts. Automaton has 2667 states and 6900 transitions. Word has length 119 [2021-05-21 23:58:13,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:58:13,557 INFO L482 AbstractCegarLoop]: Abstraction has 2667 states and 6900 transitions. [2021-05-21 23:58:13,557 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:13,557 INFO L276 IsEmpty]: Start isEmpty. Operand 2667 states and 6900 transitions. [2021-05-21 23:58:13,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:58:13,559 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:58:13,559 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:58:13,559 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-05-21 23:58:13,559 INFO L430 AbstractCegarLoop]: === Iteration 220 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:58:13,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:58:13,560 INFO L82 PathProgramCache]: Analyzing trace with hash 429237837, now seen corresponding path program 178 times [2021-05-21 23:58:13,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:58:13,560 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356200878] [2021-05-21 23:58:13,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:58:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:58:14,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:58:14,144 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:58:14,144 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356200878] [2021-05-21 23:58:14,144 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356200878] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:58:14,144 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:58:14,144 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:58:14,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693227971] [2021-05-21 23:58:14,145 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:58:14,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:58:14,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:58:14,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:58:14,145 INFO L87 Difference]: Start difference. First operand 2667 states and 6900 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:15,399 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-05-21 23:58:16,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:58:16,208 INFO L93 Difference]: Finished difference Result 2800 states and 7154 transitions. [2021-05-21 23:58:16,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:58:16,208 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:58:16,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:58:16,211 INFO L225 Difference]: With dead ends: 2800 [2021-05-21 23:58:16,211 INFO L226 Difference]: Without dead ends: 2679 [2021-05-21 23:58:16,211 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 1879.5ms TimeCoverageRelationStatistics Valid=451, Invalid=2201, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:58:16,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2679 states. [2021-05-21 23:58:16,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2679 to 2643. [2021-05-21 23:58:16,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2643 states, 2642 states have (on average 2.595760787282362) internal successors, (6858), 2642 states have internal predecessors, (6858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:16,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2643 states to 2643 states and 6858 transitions. [2021-05-21 23:58:16,234 INFO L78 Accepts]: Start accepts. Automaton has 2643 states and 6858 transitions. Word has length 119 [2021-05-21 23:58:16,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:58:16,234 INFO L482 AbstractCegarLoop]: Abstraction has 2643 states and 6858 transitions. [2021-05-21 23:58:16,234 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:16,234 INFO L276 IsEmpty]: Start isEmpty. Operand 2643 states and 6858 transitions. [2021-05-21 23:58:16,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:58:16,236 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:58:16,236 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:58:16,236 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2021-05-21 23:58:16,236 INFO L430 AbstractCegarLoop]: === Iteration 221 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:58:16,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:58:16,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1564224277, now seen corresponding path program 179 times [2021-05-21 23:58:16,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:58:16,237 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704939714] [2021-05-21 23:58:16,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:58:16,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:58:16,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:58:16,438 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:58:16,438 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704939714] [2021-05-21 23:58:16,438 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704939714] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:58:16,438 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:58:16,438 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-05-21 23:58:16,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606609325] [2021-05-21 23:58:16,438 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-21 23:58:16,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:58:16,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-21 23:58:16,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-05-21 23:58:16,439 INFO L87 Difference]: Start difference. First operand 2643 states and 6858 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:16,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:58:16,692 INFO L93 Difference]: Finished difference Result 3437 states and 8645 transitions. [2021-05-21 23:58:16,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 23:58:16,692 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:58:16,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:58:16,694 INFO L225 Difference]: With dead ends: 3437 [2021-05-21 23:58:16,695 INFO L226 Difference]: Without dead ends: 3437 [2021-05-21 23:58:16,695 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 242.6ms TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2021-05-21 23:58:16,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3437 states. [2021-05-21 23:58:16,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3437 to 2701. [2021-05-21 23:58:16,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2701 states, 2700 states have (on average 2.553703703703704) internal successors, (6895), 2700 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:16,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 6895 transitions. [2021-05-21 23:58:16,721 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 6895 transitions. Word has length 119 [2021-05-21 23:58:16,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:58:16,721 INFO L482 AbstractCegarLoop]: Abstraction has 2701 states and 6895 transitions. [2021-05-21 23:58:16,721 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:16,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 6895 transitions. [2021-05-21 23:58:16,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:58:16,723 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:58:16,723 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:58:16,723 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2021-05-21 23:58:16,723 INFO L430 AbstractCegarLoop]: === Iteration 222 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:58:16,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:58:16,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1813788137, now seen corresponding path program 180 times [2021-05-21 23:58:16,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:58:16,723 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867008116] [2021-05-21 23:58:16,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:58:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:58:17,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:58:17,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:58:17,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867008116] [2021-05-21 23:58:17,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867008116] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:58:17,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:58:17,320 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:58:17,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896919897] [2021-05-21 23:58:17,320 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:58:17,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:58:17,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:58:17,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:58:17,321 INFO L87 Difference]: Start difference. First operand 2701 states and 6895 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:19,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:58:19,995 INFO L93 Difference]: Finished difference Result 3527 states and 8819 transitions. [2021-05-21 23:58:19,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:58:19,995 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:58:19,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:58:19,998 INFO L225 Difference]: With dead ends: 3527 [2021-05-21 23:58:19,998 INFO L226 Difference]: Without dead ends: 3361 [2021-05-21 23:58:19,998 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 643 ImplicationChecksByTransitivity, 2386.2ms TimeCoverageRelationStatistics Valid=576, Invalid=2964, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:58:20,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3361 states. [2021-05-21 23:58:20,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3361 to 2701. [2021-05-21 23:58:20,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2701 states, 2700 states have (on average 2.5462962962962963) internal successors, (6875), 2700 states have internal predecessors, (6875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:20,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 6875 transitions. [2021-05-21 23:58:20,026 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 6875 transitions. Word has length 119 [2021-05-21 23:58:20,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:58:20,026 INFO L482 AbstractCegarLoop]: Abstraction has 2701 states and 6875 transitions. [2021-05-21 23:58:20,026 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:20,026 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 6875 transitions. [2021-05-21 23:58:20,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:58:20,028 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:58:20,028 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:58:20,028 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2021-05-21 23:58:20,028 INFO L430 AbstractCegarLoop]: === Iteration 223 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:58:20,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:58:20,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1411648485, now seen corresponding path program 181 times [2021-05-21 23:58:20,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:58:20,028 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309609976] [2021-05-21 23:58:20,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:58:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:58:20,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:58:20,620 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:58:20,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309609976] [2021-05-21 23:58:20,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309609976] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:58:20,620 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:58:20,620 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:58:20,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054527558] [2021-05-21 23:58:20,620 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:58:20,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:58:20,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:58:20,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:58:20,620 INFO L87 Difference]: Start difference. First operand 2701 states and 6875 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:23,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:58:23,396 INFO L93 Difference]: Finished difference Result 3799 states and 9577 transitions. [2021-05-21 23:58:23,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:58:23,397 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:58:23,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:58:23,400 INFO L225 Difference]: With dead ends: 3799 [2021-05-21 23:58:23,400 INFO L226 Difference]: Without dead ends: 3408 [2021-05-21 23:58:23,400 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 2447.9ms TimeCoverageRelationStatistics Valid=619, Invalid=2921, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:58:23,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3408 states. [2021-05-21 23:58:23,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3408 to 2761. [2021-05-21 23:58:23,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2761 states, 2760 states have (on average 2.530072463768116) internal successors, (6983), 2760 states have internal predecessors, (6983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:23,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2761 states to 2761 states and 6983 transitions. [2021-05-21 23:58:23,426 INFO L78 Accepts]: Start accepts. Automaton has 2761 states and 6983 transitions. Word has length 119 [2021-05-21 23:58:23,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:58:23,426 INFO L482 AbstractCegarLoop]: Abstraction has 2761 states and 6983 transitions. [2021-05-21 23:58:23,426 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:23,426 INFO L276 IsEmpty]: Start isEmpty. Operand 2761 states and 6983 transitions. [2021-05-21 23:58:23,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:58:23,428 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:58:23,428 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:58:23,428 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2021-05-21 23:58:23,428 INFO L430 AbstractCegarLoop]: === Iteration 224 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:58:23,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:58:23,429 INFO L82 PathProgramCache]: Analyzing trace with hash -203223121, now seen corresponding path program 182 times [2021-05-21 23:58:23,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:58:23,429 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39911831] [2021-05-21 23:58:23,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:58:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:58:24,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:58:24,018 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:58:24,018 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39911831] [2021-05-21 23:58:24,018 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39911831] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:58:24,018 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:58:24,018 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:58:24,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898777814] [2021-05-21 23:58:24,018 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:58:24,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:58:24,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:58:24,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:58:24,019 INFO L87 Difference]: Start difference. First operand 2761 states and 6983 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:26,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:58:26,962 INFO L93 Difference]: Finished difference Result 3514 states and 8770 transitions. [2021-05-21 23:58:26,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-21 23:58:26,962 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:58:26,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:58:26,965 INFO L225 Difference]: With dead ends: 3514 [2021-05-21 23:58:26,965 INFO L226 Difference]: Without dead ends: 3108 [2021-05-21 23:58:26,966 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 2545.6ms TimeCoverageRelationStatistics Valid=640, Invalid=3142, Unknown=0, NotChecked=0, Total=3782 [2021-05-21 23:58:26,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3108 states. [2021-05-21 23:58:26,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3108 to 2461. [2021-05-21 23:58:26,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2461 states, 2460 states have (on average 2.519918699186992) internal successors, (6199), 2460 states have internal predecessors, (6199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:26,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2461 states to 2461 states and 6199 transitions. [2021-05-21 23:58:26,990 INFO L78 Accepts]: Start accepts. Automaton has 2461 states and 6199 transitions. Word has length 119 [2021-05-21 23:58:26,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:58:26,990 INFO L482 AbstractCegarLoop]: Abstraction has 2461 states and 6199 transitions. [2021-05-21 23:58:26,990 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:26,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2461 states and 6199 transitions. [2021-05-21 23:58:26,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:58:26,991 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:58:26,992 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:58:26,992 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2021-05-21 23:58:26,992 INFO L430 AbstractCegarLoop]: === Iteration 225 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:58:26,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:58:26,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1806453033, now seen corresponding path program 183 times [2021-05-21 23:58:26,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:58:26,992 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323311989] [2021-05-21 23:58:26,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:58:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:58:27,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:58:27,592 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:58:27,592 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323311989] [2021-05-21 23:58:27,592 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323311989] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:58:27,592 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:58:27,592 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:58:27,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318572594] [2021-05-21 23:58:27,592 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:58:27,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:58:27,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:58:27,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:58:27,592 INFO L87 Difference]: Start difference. First operand 2461 states and 6199 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:29,035 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-05-21 23:58:30,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:58:30,419 INFO L93 Difference]: Finished difference Result 2927 states and 7215 transitions. [2021-05-21 23:58:30,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:58:30,420 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:58:30,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:58:30,422 INFO L225 Difference]: With dead ends: 2927 [2021-05-21 23:58:30,422 INFO L226 Difference]: Without dead ends: 2747 [2021-05-21 23:58:30,423 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 663 ImplicationChecksByTransitivity, 2476.6ms TimeCoverageRelationStatistics Valid=629, Invalid=2911, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:58:30,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2747 states. [2021-05-21 23:58:30,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2747 to 2455. [2021-05-21 23:58:30,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2455 states, 2454 states have (on average 2.519967400162999) internal successors, (6184), 2454 states have internal predecessors, (6184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:30,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2455 states to 2455 states and 6184 transitions. [2021-05-21 23:58:30,445 INFO L78 Accepts]: Start accepts. Automaton has 2455 states and 6184 transitions. Word has length 119 [2021-05-21 23:58:30,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:58:30,445 INFO L482 AbstractCegarLoop]: Abstraction has 2455 states and 6184 transitions. [2021-05-21 23:58:30,445 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:30,445 INFO L276 IsEmpty]: Start isEmpty. Operand 2455 states and 6184 transitions. [2021-05-21 23:58:30,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:58:30,446 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:58:30,447 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:58:30,447 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2021-05-21 23:58:30,447 INFO L430 AbstractCegarLoop]: === Iteration 226 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:58:30,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:58:30,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1102137719, now seen corresponding path program 184 times [2021-05-21 23:58:30,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:58:30,447 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034683383] [2021-05-21 23:58:30,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:58:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:58:31,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:58:31,032 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:58:31,032 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034683383] [2021-05-21 23:58:31,032 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034683383] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:58:31,032 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:58:31,032 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:58:31,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653910056] [2021-05-21 23:58:31,032 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:58:31,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:58:31,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:58:31,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:58:31,032 INFO L87 Difference]: Start difference. First operand 2455 states and 6184 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:32,339 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-05-21 23:58:33,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:58:33,618 INFO L93 Difference]: Finished difference Result 2827 states and 6921 transitions. [2021-05-21 23:58:33,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-21 23:58:33,619 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:58:33,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:58:33,621 INFO L225 Difference]: With dead ends: 2827 [2021-05-21 23:58:33,621 INFO L226 Difference]: Without dead ends: 2617 [2021-05-21 23:58:33,621 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 2324.2ms TimeCoverageRelationStatistics Valid=602, Invalid=2820, Unknown=0, NotChecked=0, Total=3422 [2021-05-21 23:58:33,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2617 states. [2021-05-21 23:58:33,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2617 to 2445. [2021-05-21 23:58:33,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2445 states, 2444 states have (on average 2.526595744680851) internal successors, (6175), 2444 states have internal predecessors, (6175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:33,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2445 states to 2445 states and 6175 transitions. [2021-05-21 23:58:33,652 INFO L78 Accepts]: Start accepts. Automaton has 2445 states and 6175 transitions. Word has length 119 [2021-05-21 23:58:33,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:58:33,653 INFO L482 AbstractCegarLoop]: Abstraction has 2445 states and 6175 transitions. [2021-05-21 23:58:33,653 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:33,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2445 states and 6175 transitions. [2021-05-21 23:58:33,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:58:33,654 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:58:33,654 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:58:33,654 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2021-05-21 23:58:33,654 INFO L430 AbstractCegarLoop]: === Iteration 227 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:58:33,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:58:33,655 INFO L82 PathProgramCache]: Analyzing trace with hash 701321313, now seen corresponding path program 185 times [2021-05-21 23:58:33,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:58:33,655 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56763117] [2021-05-21 23:58:33,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:58:33,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:58:34,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:58:34,280 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:58:34,280 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56763117] [2021-05-21 23:58:34,280 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56763117] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:58:34,280 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:58:34,280 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:58:34,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242104854] [2021-05-21 23:58:34,280 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:58:34,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:58:34,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:58:34,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:58:34,281 INFO L87 Difference]: Start difference. First operand 2445 states and 6175 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:37,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:58:37,094 INFO L93 Difference]: Finished difference Result 2771 states and 6813 transitions. [2021-05-21 23:58:37,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-21 23:58:37,095 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:58:37,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:58:37,096 INFO L225 Difference]: With dead ends: 2771 [2021-05-21 23:58:37,097 INFO L226 Difference]: Without dead ends: 2616 [2021-05-21 23:58:37,097 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 2371.1ms TimeCoverageRelationStatistics Valid=605, Invalid=2817, Unknown=0, NotChecked=0, Total=3422 [2021-05-21 23:58:37,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2616 states. [2021-05-21 23:58:37,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2616 to 2451. [2021-05-21 23:58:37,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2451 states, 2450 states have (on average 2.522448979591837) internal successors, (6180), 2450 states have internal predecessors, (6180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:37,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2451 states to 2451 states and 6180 transitions. [2021-05-21 23:58:37,118 INFO L78 Accepts]: Start accepts. Automaton has 2451 states and 6180 transitions. Word has length 119 [2021-05-21 23:58:37,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:58:37,118 INFO L482 AbstractCegarLoop]: Abstraction has 2451 states and 6180 transitions. [2021-05-21 23:58:37,118 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:37,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2451 states and 6180 transitions. [2021-05-21 23:58:37,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:58:37,120 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:58:37,120 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:58:37,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2021-05-21 23:58:37,120 INFO L430 AbstractCegarLoop]: === Iteration 228 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:58:37,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:58:37,120 INFO L82 PathProgramCache]: Analyzing trace with hash 696903173, now seen corresponding path program 186 times [2021-05-21 23:58:37,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:58:37,120 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311000601] [2021-05-21 23:58:37,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:58:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:58:37,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:58:37,712 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:58:37,712 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311000601] [2021-05-21 23:58:37,712 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311000601] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:58:37,712 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:58:37,712 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:58:37,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785085537] [2021-05-21 23:58:37,712 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:58:37,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:58:37,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:58:37,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:58:37,713 INFO L87 Difference]: Start difference. First operand 2451 states and 6180 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:40,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:58:40,545 INFO L93 Difference]: Finished difference Result 3667 states and 9187 transitions. [2021-05-21 23:58:40,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:58:40,546 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:58:40,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:58:40,548 INFO L225 Difference]: With dead ends: 3667 [2021-05-21 23:58:40,548 INFO L226 Difference]: Without dead ends: 3522 [2021-05-21 23:58:40,548 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 2415.8ms TimeCoverageRelationStatistics Valid=580, Invalid=2960, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:58:40,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3522 states. [2021-05-21 23:58:40,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3522 to 2739. [2021-05-21 23:58:40,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2739 states, 2738 states have (on average 2.547114682249817) internal successors, (6974), 2738 states have internal predecessors, (6974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:40,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2739 states to 2739 states and 6974 transitions. [2021-05-21 23:58:40,575 INFO L78 Accepts]: Start accepts. Automaton has 2739 states and 6974 transitions. Word has length 119 [2021-05-21 23:58:40,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:58:40,575 INFO L482 AbstractCegarLoop]: Abstraction has 2739 states and 6974 transitions. [2021-05-21 23:58:40,575 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:40,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2739 states and 6974 transitions. [2021-05-21 23:58:40,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:58:40,577 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:58:40,577 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:58:40,577 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-05-21 23:58:40,577 INFO L430 AbstractCegarLoop]: === Iteration 229 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:58:40,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:58:40,577 INFO L82 PathProgramCache]: Analyzing trace with hash 222196871, now seen corresponding path program 187 times [2021-05-21 23:58:40,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:58:40,577 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833585869] [2021-05-21 23:58:40,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:58:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:58:41,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:58:41,158 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:58:41,158 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833585869] [2021-05-21 23:58:41,158 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833585869] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:58:41,158 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:58:41,158 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:58:41,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553413814] [2021-05-21 23:58:41,159 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:58:41,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:58:41,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:58:41,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:58:41,159 INFO L87 Difference]: Start difference. First operand 2739 states and 6974 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:44,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:58:44,123 INFO L93 Difference]: Finished difference Result 4002 states and 10071 transitions. [2021-05-21 23:58:44,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-05-21 23:58:44,123 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:58:44,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:58:44,126 INFO L225 Difference]: With dead ends: 4002 [2021-05-21 23:58:44,126 INFO L226 Difference]: Without dead ends: 3220 [2021-05-21 23:58:44,126 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 720 ImplicationChecksByTransitivity, 2566.5ms TimeCoverageRelationStatistics Valid=656, Invalid=3250, Unknown=0, NotChecked=0, Total=3906 [2021-05-21 23:58:44,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2021-05-21 23:58:44,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 2475. [2021-05-21 23:58:44,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2475 states, 2474 states have (on average 2.5125303152789007) internal successors, (6216), 2474 states have internal predecessors, (6216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:44,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2475 states to 2475 states and 6216 transitions. [2021-05-21 23:58:44,148 INFO L78 Accepts]: Start accepts. Automaton has 2475 states and 6216 transitions. Word has length 119 [2021-05-21 23:58:44,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:58:44,148 INFO L482 AbstractCegarLoop]: Abstraction has 2475 states and 6216 transitions. [2021-05-21 23:58:44,149 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:44,149 INFO L276 IsEmpty]: Start isEmpty. Operand 2475 states and 6216 transitions. [2021-05-21 23:58:44,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:58:44,150 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:58:44,150 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:58:44,150 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2021-05-21 23:58:44,150 INFO L430 AbstractCegarLoop]: === Iteration 230 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:58:44,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:58:44,151 INFO L82 PathProgramCache]: Analyzing trace with hash -221867791, now seen corresponding path program 188 times [2021-05-21 23:58:44,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:58:44,151 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674693414] [2021-05-21 23:58:44,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:58:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:58:44,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:58:44,749 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:58:44,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674693414] [2021-05-21 23:58:44,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674693414] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:58:44,749 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:58:44,749 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:58:44,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800030907] [2021-05-21 23:58:44,749 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:58:44,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:58:44,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:58:44,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:58:44,750 INFO L87 Difference]: Start difference. First operand 2475 states and 6216 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:46,243 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-05-21 23:58:47,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:58:47,618 INFO L93 Difference]: Finished difference Result 2981 states and 7349 transitions. [2021-05-21 23:58:47,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:58:47,619 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:58:47,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:58:47,620 INFO L225 Difference]: With dead ends: 2981 [2021-05-21 23:58:47,620 INFO L226 Difference]: Without dead ends: 2774 [2021-05-21 23:58:47,621 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 662 ImplicationChecksByTransitivity, 2449.9ms TimeCoverageRelationStatistics Valid=629, Invalid=2911, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:58:47,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2774 states. [2021-05-21 23:58:47,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2774 to 2415. [2021-05-21 23:58:47,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2415 states, 2414 states have (on average 2.5269262634631318) internal successors, (6100), 2414 states have internal predecessors, (6100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:47,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2415 states to 2415 states and 6100 transitions. [2021-05-21 23:58:47,641 INFO L78 Accepts]: Start accepts. Automaton has 2415 states and 6100 transitions. Word has length 119 [2021-05-21 23:58:47,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:58:47,642 INFO L482 AbstractCegarLoop]: Abstraction has 2415 states and 6100 transitions. [2021-05-21 23:58:47,642 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:47,642 INFO L276 IsEmpty]: Start isEmpty. Operand 2415 states and 6100 transitions. [2021-05-21 23:58:47,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:58:47,643 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:58:47,643 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:58:47,643 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2021-05-21 23:58:47,644 INFO L430 AbstractCegarLoop]: === Iteration 231 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:58:47,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:58:47,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1021977465, now seen corresponding path program 189 times [2021-05-21 23:58:47,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:58:47,644 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171917204] [2021-05-21 23:58:47,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:58:47,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:58:47,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:58:47,877 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:58:47,878 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171917204] [2021-05-21 23:58:47,878 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171917204] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:58:47,878 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:58:47,878 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-05-21 23:58:47,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674376298] [2021-05-21 23:58:47,878 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-21 23:58:47,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:58:47,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-21 23:58:47,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:58:47,878 INFO L87 Difference]: Start difference. First operand 2415 states and 6100 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:48,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:58:48,300 INFO L93 Difference]: Finished difference Result 2871 states and 7050 transitions. [2021-05-21 23:58:48,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-21 23:58:48,301 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:58:48,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:58:48,303 INFO L225 Difference]: With dead ends: 2871 [2021-05-21 23:58:48,303 INFO L226 Difference]: Without dead ends: 2815 [2021-05-21 23:58:48,303 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 400.8ms TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2021-05-21 23:58:48,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2021-05-21 23:58:48,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2521. [2021-05-21 23:58:48,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2521 states, 2520 states have (on average 2.5186507936507936) internal successors, (6347), 2520 states have internal predecessors, (6347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:48,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 6347 transitions. [2021-05-21 23:58:48,325 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 6347 transitions. Word has length 119 [2021-05-21 23:58:48,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:58:48,325 INFO L482 AbstractCegarLoop]: Abstraction has 2521 states and 6347 transitions. [2021-05-21 23:58:48,325 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:48,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 6347 transitions. [2021-05-21 23:58:48,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:58:48,327 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:58:48,327 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:58:48,327 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2021-05-21 23:58:48,327 INFO L430 AbstractCegarLoop]: === Iteration 232 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:58:48,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:58:48,327 INFO L82 PathProgramCache]: Analyzing trace with hash -803902033, now seen corresponding path program 190 times [2021-05-21 23:58:48,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:58:48,327 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371368737] [2021-05-21 23:58:48,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:58:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:58:48,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:58:48,915 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:58:48,915 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371368737] [2021-05-21 23:58:48,915 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371368737] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:58:48,915 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:58:48,915 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:58:48,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525686064] [2021-05-21 23:58:48,915 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:58:48,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:58:48,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:58:48,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:58:48,915 INFO L87 Difference]: Start difference. First operand 2521 states and 6347 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:50,170 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-05-21 23:58:51,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:58:51,492 INFO L93 Difference]: Finished difference Result 2919 states and 7159 transitions. [2021-05-21 23:58:51,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-21 23:58:51,493 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:58:51,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:58:51,495 INFO L225 Difference]: With dead ends: 2919 [2021-05-21 23:58:51,495 INFO L226 Difference]: Without dead ends: 2766 [2021-05-21 23:58:51,495 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 2300.2ms TimeCoverageRelationStatistics Valid=605, Invalid=2817, Unknown=0, NotChecked=0, Total=3422 [2021-05-21 23:58:51,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2766 states. [2021-05-21 23:58:51,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2766 to 2561. [2021-05-21 23:58:51,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2561 states, 2560 states have (on average 2.515234375) internal successors, (6439), 2560 states have internal predecessors, (6439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:51,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2561 states to 2561 states and 6439 transitions. [2021-05-21 23:58:51,517 INFO L78 Accepts]: Start accepts. Automaton has 2561 states and 6439 transitions. Word has length 119 [2021-05-21 23:58:51,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:58:51,517 INFO L482 AbstractCegarLoop]: Abstraction has 2561 states and 6439 transitions. [2021-05-21 23:58:51,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:51,517 INFO L276 IsEmpty]: Start isEmpty. Operand 2561 states and 6439 transitions. [2021-05-21 23:58:51,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:58:51,519 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:58:51,519 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:58:51,519 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2021-05-21 23:58:51,519 INFO L430 AbstractCegarLoop]: === Iteration 233 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:58:51,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:58:51,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1318576291, now seen corresponding path program 191 times [2021-05-21 23:58:51,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:58:51,519 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424761833] [2021-05-21 23:58:51,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:58:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:58:52,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:58:52,107 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:58:52,107 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424761833] [2021-05-21 23:58:52,107 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424761833] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:58:52,107 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:58:52,107 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:58:52,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64044781] [2021-05-21 23:58:52,107 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:58:52,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:58:52,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:58:52,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:58:52,108 INFO L87 Difference]: Start difference. First operand 2561 states and 6439 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:53,194 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 61 [2021-05-21 23:58:55,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:58:55,045 INFO L93 Difference]: Finished difference Result 2961 states and 7246 transitions. [2021-05-21 23:58:55,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:58:55,045 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:58:55,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:58:55,048 INFO L225 Difference]: With dead ends: 2961 [2021-05-21 23:58:55,048 INFO L226 Difference]: Without dead ends: 2802 [2021-05-21 23:58:55,048 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 2589.5ms TimeCoverageRelationStatistics Valid=615, Invalid=2925, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:58:55,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2802 states. [2021-05-21 23:58:55,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2802 to 2565. [2021-05-21 23:58:55,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2565 states, 2564 states have (on average 2.513650546021841) internal successors, (6445), 2564 states have internal predecessors, (6445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:55,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2565 states to 2565 states and 6445 transitions. [2021-05-21 23:58:55,072 INFO L78 Accepts]: Start accepts. Automaton has 2565 states and 6445 transitions. Word has length 119 [2021-05-21 23:58:55,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:58:55,072 INFO L482 AbstractCegarLoop]: Abstraction has 2565 states and 6445 transitions. [2021-05-21 23:58:55,072 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:55,072 INFO L276 IsEmpty]: Start isEmpty. Operand 2565 states and 6445 transitions. [2021-05-21 23:58:55,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:58:55,074 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:58:55,074 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:58:55,074 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2021-05-21 23:58:55,074 INFO L430 AbstractCegarLoop]: === Iteration 234 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:58:55,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:58:55,074 INFO L82 PathProgramCache]: Analyzing trace with hash 904807895, now seen corresponding path program 192 times [2021-05-21 23:58:55,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:58:55,074 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112805703] [2021-05-21 23:58:55,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:58:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:58:55,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:58:55,689 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:58:55,689 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112805703] [2021-05-21 23:58:55,689 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112805703] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:58:55,689 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:58:55,689 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:58:55,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050743878] [2021-05-21 23:58:55,689 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:58:55,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:58:55,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:58:55,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:58:55,690 INFO L87 Difference]: Start difference. First operand 2565 states and 6445 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:56,981 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-05-21 23:58:58,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:58:58,599 INFO L93 Difference]: Finished difference Result 2937 states and 7187 transitions. [2021-05-21 23:58:58,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 23:58:58,599 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:58:58,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:58:58,602 INFO L225 Difference]: With dead ends: 2937 [2021-05-21 23:58:58,602 INFO L226 Difference]: Without dead ends: 2782 [2021-05-21 23:58:58,602 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 2541.9ms TimeCoverageRelationStatistics Valid=632, Invalid=2908, Unknown=0, NotChecked=0, Total=3540 [2021-05-21 23:58:58,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2782 states. [2021-05-21 23:58:58,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2782 to 2557. [2021-05-21 23:58:58,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2557 states, 2556 states have (on average 2.514866979655712) internal successors, (6428), 2556 states have internal predecessors, (6428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:58,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 6428 transitions. [2021-05-21 23:58:58,625 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 6428 transitions. Word has length 119 [2021-05-21 23:58:58,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:58:58,625 INFO L482 AbstractCegarLoop]: Abstraction has 2557 states and 6428 transitions. [2021-05-21 23:58:58,625 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:58:58,625 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 6428 transitions. [2021-05-21 23:58:58,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:58:58,627 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:58:58,627 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:58:58,627 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2021-05-21 23:58:58,627 INFO L430 AbstractCegarLoop]: === Iteration 235 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:58:58,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:58:58,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1137995679, now seen corresponding path program 193 times [2021-05-21 23:58:58,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:58:58,627 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755301642] [2021-05-21 23:58:58,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:58:58,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:58:59,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:58:59,192 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:58:59,192 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755301642] [2021-05-21 23:58:59,192 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755301642] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:58:59,192 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:58:59,192 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:58:59,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439235931] [2021-05-21 23:58:59,192 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:58:59,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:58:59,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:58:59,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:58:59,193 INFO L87 Difference]: Start difference. First operand 2557 states and 6428 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:01,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:59:01,984 INFO L93 Difference]: Finished difference Result 4166 states and 10564 transitions. [2021-05-21 23:59:01,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-21 23:59:01,984 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:59:01,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:59:01,988 INFO L225 Difference]: With dead ends: 4166 [2021-05-21 23:59:01,988 INFO L226 Difference]: Without dead ends: 4021 [2021-05-21 23:59:01,988 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 2336.1ms TimeCoverageRelationStatistics Valid=553, Invalid=2753, Unknown=0, NotChecked=0, Total=3306 [2021-05-21 23:59:01,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4021 states. [2021-05-21 23:59:02,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4021 to 2893. [2021-05-21 23:59:02,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2893 states, 2892 states have (on average 2.5345781466113415) internal successors, (7330), 2892 states have internal predecessors, (7330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:02,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 7330 transitions. [2021-05-21 23:59:02,017 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 7330 transitions. Word has length 119 [2021-05-21 23:59:02,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:59:02,017 INFO L482 AbstractCegarLoop]: Abstraction has 2893 states and 7330 transitions. [2021-05-21 23:59:02,017 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:02,017 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 7330 transitions. [2021-05-21 23:59:02,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:59:02,019 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:59:02,019 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:59:02,019 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2021-05-21 23:59:02,019 INFO L430 AbstractCegarLoop]: === Iteration 236 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:59:02,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:59:02,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1612701981, now seen corresponding path program 194 times [2021-05-21 23:59:02,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:59:02,020 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473372169] [2021-05-21 23:59:02,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:59:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:59:02,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:59:02,608 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:59:02,608 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473372169] [2021-05-21 23:59:02,608 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473372169] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:59:02,608 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:59:02,608 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:59:02,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837871135] [2021-05-21 23:59:02,609 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:59:02,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:59:02,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:59:02,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:59:02,609 INFO L87 Difference]: Start difference. First operand 2893 states and 7330 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:05,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:59:05,979 INFO L93 Difference]: Finished difference Result 4537 states and 11453 transitions. [2021-05-21 23:59:05,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-05-21 23:59:05,980 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:59:05,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:59:05,983 INFO L225 Difference]: With dead ends: 4537 [2021-05-21 23:59:05,983 INFO L226 Difference]: Without dead ends: 3742 [2021-05-21 23:59:05,984 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 2915.2ms TimeCoverageRelationStatistics Valid=696, Invalid=3464, Unknown=0, NotChecked=0, Total=4160 [2021-05-21 23:59:05,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2021-05-21 23:59:06,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 2629. [2021-05-21 23:59:06,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2629 states, 2628 states have (on average 2.4916286149162863) internal successors, (6548), 2628 states have internal predecessors, (6548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:06,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2629 states to 2629 states and 6548 transitions. [2021-05-21 23:59:06,010 INFO L78 Accepts]: Start accepts. Automaton has 2629 states and 6548 transitions. Word has length 119 [2021-05-21 23:59:06,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:59:06,010 INFO L482 AbstractCegarLoop]: Abstraction has 2629 states and 6548 transitions. [2021-05-21 23:59:06,010 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:06,010 INFO L276 IsEmpty]: Start isEmpty. Operand 2629 states and 6548 transitions. [2021-05-21 23:59:06,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:59:06,012 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:59:06,012 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:59:06,012 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2021-05-21 23:59:06,012 INFO L430 AbstractCegarLoop]: === Iteration 237 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:59:06,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:59:06,013 INFO L82 PathProgramCache]: Analyzing trace with hash -377724415, now seen corresponding path program 195 times [2021-05-21 23:59:06,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:59:06,013 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014831501] [2021-05-21 23:59:06,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:59:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:59:06,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:59:06,598 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:59:06,598 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014831501] [2021-05-21 23:59:06,598 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014831501] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:59:06,598 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:59:06,598 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:59:06,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041944775] [2021-05-21 23:59:06,599 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:59:06,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:59:06,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:59:06,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:59:06,599 INFO L87 Difference]: Start difference. First operand 2629 states and 6548 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:09,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:59:09,578 INFO L93 Difference]: Finished difference Result 3939 states and 9770 transitions. [2021-05-21 23:59:09,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-21 23:59:09,578 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:59:09,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:59:09,581 INFO L225 Difference]: With dead ends: 3939 [2021-05-21 23:59:09,581 INFO L226 Difference]: Without dead ends: 3696 [2021-05-21 23:59:09,581 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 2536.7ms TimeCoverageRelationStatistics Valid=602, Invalid=3058, Unknown=0, NotChecked=0, Total=3660 [2021-05-21 23:59:09,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3696 states. [2021-05-21 23:59:09,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3696 to 2545. [2021-05-21 23:59:09,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2545 states, 2544 states have (on average 2.50314465408805) internal successors, (6368), 2544 states have internal predecessors, (6368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:09,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2545 states to 2545 states and 6368 transitions. [2021-05-21 23:59:09,606 INFO L78 Accepts]: Start accepts. Automaton has 2545 states and 6368 transitions. Word has length 119 [2021-05-21 23:59:09,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:59:09,606 INFO L482 AbstractCegarLoop]: Abstraction has 2545 states and 6368 transitions. [2021-05-21 23:59:09,606 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:09,606 INFO L276 IsEmpty]: Start isEmpty. Operand 2545 states and 6368 transitions. [2021-05-21 23:59:09,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:59:09,608 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:59:09,608 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:59:09,608 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2021-05-21 23:59:09,608 INFO L430 AbstractCegarLoop]: === Iteration 238 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:59:09,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:59:09,609 INFO L82 PathProgramCache]: Analyzing trace with hash 662534293, now seen corresponding path program 196 times [2021-05-21 23:59:09,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:59:09,609 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191141607] [2021-05-21 23:59:09,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:59:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:59:10,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:59:10,190 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:59:10,190 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191141607] [2021-05-21 23:59:10,190 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191141607] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:59:10,190 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:59:10,190 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:59:10,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602132893] [2021-05-21 23:59:10,191 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:59:10,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:59:10,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:59:10,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:59:10,191 INFO L87 Difference]: Start difference. First operand 2545 states and 6368 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:13,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:59:13,172 INFO L93 Difference]: Finished difference Result 4005 states and 10006 transitions. [2021-05-21 23:59:13,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-21 23:59:13,172 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:59:13,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:59:13,175 INFO L225 Difference]: With dead ends: 4005 [2021-05-21 23:59:13,175 INFO L226 Difference]: Without dead ends: 3860 [2021-05-21 23:59:13,175 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 2549.1ms TimeCoverageRelationStatistics Valid=607, Invalid=3053, Unknown=0, NotChecked=0, Total=3660 [2021-05-21 23:59:13,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3860 states. [2021-05-21 23:59:13,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3860 to 2833. [2021-05-21 23:59:13,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2833 states, 2832 states have (on average 2.528954802259887) internal successors, (7162), 2832 states have internal predecessors, (7162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:13,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2833 states to 2833 states and 7162 transitions. [2021-05-21 23:59:13,201 INFO L78 Accepts]: Start accepts. Automaton has 2833 states and 7162 transitions. Word has length 119 [2021-05-21 23:59:13,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:59:13,201 INFO L482 AbstractCegarLoop]: Abstraction has 2833 states and 7162 transitions. [2021-05-21 23:59:13,201 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:13,201 INFO L276 IsEmpty]: Start isEmpty. Operand 2833 states and 7162 transitions. [2021-05-21 23:59:13,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:59:13,203 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:59:13,203 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:59:13,203 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2021-05-21 23:59:13,203 INFO L430 AbstractCegarLoop]: === Iteration 239 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:59:13,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:59:13,204 INFO L82 PathProgramCache]: Analyzing trace with hash 187827991, now seen corresponding path program 197 times [2021-05-21 23:59:13,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:59:13,204 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762515393] [2021-05-21 23:59:13,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:59:13,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:59:13,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:59:13,829 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:59:13,829 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762515393] [2021-05-21 23:59:13,829 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762515393] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:59:13,829 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:59:13,830 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:59:13,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625054708] [2021-05-21 23:59:13,830 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:59:13,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:59:13,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:59:13,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:59:13,830 INFO L87 Difference]: Start difference. First operand 2833 states and 7162 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:17,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:59:17,136 INFO L93 Difference]: Finished difference Result 4340 states and 10890 transitions. [2021-05-21 23:59:17,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-05-21 23:59:17,137 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:59:17,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:59:17,140 INFO L225 Difference]: With dead ends: 4340 [2021-05-21 23:59:17,140 INFO L226 Difference]: Without dead ends: 3558 [2021-05-21 23:59:17,140 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 2925.9ms TimeCoverageRelationStatistics Valid=687, Invalid=3345, Unknown=0, NotChecked=0, Total=4032 [2021-05-21 23:59:17,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3558 states. [2021-05-21 23:59:17,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3558 to 2569. [2021-05-21 23:59:17,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2569 states, 2568 states have (on average 2.4937694704049846) internal successors, (6404), 2568 states have internal predecessors, (6404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:17,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2569 states to 2569 states and 6404 transitions. [2021-05-21 23:59:17,166 INFO L78 Accepts]: Start accepts. Automaton has 2569 states and 6404 transitions. Word has length 119 [2021-05-21 23:59:17,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:59:17,166 INFO L482 AbstractCegarLoop]: Abstraction has 2569 states and 6404 transitions. [2021-05-21 23:59:17,166 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:17,167 INFO L276 IsEmpty]: Start isEmpty. Operand 2569 states and 6404 transitions. [2021-05-21 23:59:17,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:59:17,168 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:59:17,168 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:59:17,168 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2021-05-21 23:59:17,169 INFO L430 AbstractCegarLoop]: === Iteration 240 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:59:17,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:59:17,169 INFO L82 PathProgramCache]: Analyzing trace with hash -256236671, now seen corresponding path program 198 times [2021-05-21 23:59:17,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:59:17,169 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380362387] [2021-05-21 23:59:17,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:59:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:59:17,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:59:17,779 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:59:17,779 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380362387] [2021-05-21 23:59:17,779 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380362387] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:59:17,779 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:59:17,780 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:59:17,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000964636] [2021-05-21 23:59:17,780 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:59:17,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:59:17,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:59:17,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:59:17,780 INFO L87 Difference]: Start difference. First operand 2569 states and 6404 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:18,790 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-05-21 23:59:19,299 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-05-21 23:59:20,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:59:20,801 INFO L93 Difference]: Finished difference Result 3307 states and 8140 transitions. [2021-05-21 23:59:20,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-21 23:59:20,801 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:59:20,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:59:20,804 INFO L225 Difference]: With dead ends: 3307 [2021-05-21 23:59:20,804 INFO L226 Difference]: Without dead ends: 3148 [2021-05-21 23:59:20,804 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 2659.0ms TimeCoverageRelationStatistics Valid=659, Invalid=3001, Unknown=0, NotChecked=0, Total=3660 [2021-05-21 23:59:20,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2021-05-21 23:59:20,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 2509. [2021-05-21 23:59:20,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2509 states, 2508 states have (on average 2.5055821371610847) internal successors, (6284), 2508 states have internal predecessors, (6284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:20,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 6284 transitions. [2021-05-21 23:59:20,826 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 6284 transitions. Word has length 119 [2021-05-21 23:59:20,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:59:20,826 INFO L482 AbstractCegarLoop]: Abstraction has 2509 states and 6284 transitions. [2021-05-21 23:59:20,826 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:20,826 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 6284 transitions. [2021-05-21 23:59:20,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:59:20,828 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:59:20,828 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:59:20,828 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2021-05-21 23:59:20,828 INFO L430 AbstractCegarLoop]: === Iteration 241 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:59:20,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:59:20,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1205146773, now seen corresponding path program 199 times [2021-05-21 23:59:20,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:59:20,828 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028121715] [2021-05-21 23:59:20,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:59:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:59:21,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:59:21,380 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:59:21,380 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028121715] [2021-05-21 23:59:21,380 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028121715] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:59:21,381 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:59:21,381 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:59:21,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387965122] [2021-05-21 23:59:21,381 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:59:21,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:59:21,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:59:21,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:59:21,381 INFO L87 Difference]: Start difference. First operand 2509 states and 6284 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:24,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:59:24,311 INFO L93 Difference]: Finished difference Result 3111 states and 7631 transitions. [2021-05-21 23:59:24,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-21 23:59:24,312 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:59:24,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:59:24,314 INFO L225 Difference]: With dead ends: 3111 [2021-05-21 23:59:24,314 INFO L226 Difference]: Without dead ends: 2952 [2021-05-21 23:59:24,314 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 2526.8ms TimeCoverageRelationStatistics Valid=644, Invalid=3016, Unknown=0, NotChecked=0, Total=3660 [2021-05-21 23:59:24,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2021-05-21 23:59:24,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 2513. [2021-05-21 23:59:24,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2513 states, 2512 states have (on average 2.503980891719745) internal successors, (6290), 2512 states have internal predecessors, (6290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:24,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2513 states to 2513 states and 6290 transitions. [2021-05-21 23:59:24,337 INFO L78 Accepts]: Start accepts. Automaton has 2513 states and 6290 transitions. Word has length 119 [2021-05-21 23:59:24,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:59:24,337 INFO L482 AbstractCegarLoop]: Abstraction has 2513 states and 6290 transitions. [2021-05-21 23:59:24,337 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:24,337 INFO L276 IsEmpty]: Start isEmpty. Operand 2513 states and 6290 transitions. [2021-05-21 23:59:24,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:59:24,339 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:59:24,339 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:59:24,339 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2021-05-21 23:59:24,339 INFO L430 AbstractCegarLoop]: === Iteration 242 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:59:24,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:59:24,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1263228385, now seen corresponding path program 200 times [2021-05-21 23:59:24,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:59:24,339 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771164615] [2021-05-21 23:59:24,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:59:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:59:24,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:59:24,939 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:59:24,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771164615] [2021-05-21 23:59:24,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771164615] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:59:24,939 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:59:24,940 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:59:24,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779805599] [2021-05-21 23:59:24,940 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:59:24,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:59:24,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:59:24,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:59:24,940 INFO L87 Difference]: Start difference. First operand 2513 states and 6290 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:26,322 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-05-21 23:59:27,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:59:27,950 INFO L93 Difference]: Finished difference Result 3085 states and 7567 transitions. [2021-05-21 23:59:27,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-21 23:59:27,950 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:59:27,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:59:27,953 INFO L225 Difference]: With dead ends: 3085 [2021-05-21 23:59:27,953 INFO L226 Difference]: Without dead ends: 2888 [2021-05-21 23:59:27,953 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 2648.3ms TimeCoverageRelationStatistics Valid=659, Invalid=3001, Unknown=0, NotChecked=0, Total=3660 [2021-05-21 23:59:27,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2021-05-21 23:59:27,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 2461. [2021-05-21 23:59:27,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2461 states, 2460 states have (on average 2.5166666666666666) internal successors, (6191), 2460 states have internal predecessors, (6191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:27,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2461 states to 2461 states and 6191 transitions. [2021-05-21 23:59:27,975 INFO L78 Accepts]: Start accepts. Automaton has 2461 states and 6191 transitions. Word has length 119 [2021-05-21 23:59:27,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:59:27,975 INFO L482 AbstractCegarLoop]: Abstraction has 2461 states and 6191 transitions. [2021-05-21 23:59:27,975 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:27,975 INFO L276 IsEmpty]: Start isEmpty. Operand 2461 states and 6191 transitions. [2021-05-21 23:59:27,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:59:27,977 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:59:27,977 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:59:27,977 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2021-05-21 23:59:27,977 INFO L430 AbstractCegarLoop]: === Iteration 243 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:59:27,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:59:27,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1732020677, now seen corresponding path program 201 times [2021-05-21 23:59:27,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:59:27,978 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526697907] [2021-05-21 23:59:27,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:59:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:59:28,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:59:28,560 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:59:28,560 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526697907] [2021-05-21 23:59:28,560 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526697907] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:59:28,560 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:59:28,560 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:59:28,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165991035] [2021-05-21 23:59:28,561 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:59:28,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:59:28,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:59:28,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:59:28,561 INFO L87 Difference]: Start difference. First operand 2461 states and 6191 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:29,849 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-05-21 23:59:31,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:59:31,226 INFO L93 Difference]: Finished difference Result 2819 states and 6897 transitions. [2021-05-21 23:59:31,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-21 23:59:31,226 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:59:31,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:59:31,229 INFO L225 Difference]: With dead ends: 2819 [2021-05-21 23:59:31,229 INFO L226 Difference]: Without dead ends: 2629 [2021-05-21 23:59:31,229 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 2403.4ms TimeCoverageRelationStatistics Valid=602, Invalid=2820, Unknown=0, NotChecked=0, Total=3422 [2021-05-21 23:59:31,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2629 states. [2021-05-21 23:59:31,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2629 to 2421. [2021-05-21 23:59:31,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2420 states have (on average 2.521074380165289) internal successors, (6101), 2420 states have internal predecessors, (6101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:31,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 6101 transitions. [2021-05-21 23:59:31,249 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 6101 transitions. Word has length 119 [2021-05-21 23:59:31,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:59:31,249 INFO L482 AbstractCegarLoop]: Abstraction has 2421 states and 6101 transitions. [2021-05-21 23:59:31,249 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:31,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 6101 transitions. [2021-05-21 23:59:31,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:59:31,251 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:59:31,251 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:59:31,251 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2021-05-21 23:59:31,251 INFO L430 AbstractCegarLoop]: === Iteration 244 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:59:31,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:59:31,252 INFO L82 PathProgramCache]: Analyzing trace with hash -1787237757, now seen corresponding path program 202 times [2021-05-21 23:59:31,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:59:31,252 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205033402] [2021-05-21 23:59:31,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:59:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:59:31,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:59:31,493 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:59:31,493 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205033402] [2021-05-21 23:59:31,493 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205033402] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:59:31,493 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:59:31,493 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-05-21 23:59:31,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314014936] [2021-05-21 23:59:31,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-21 23:59:31,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:59:31,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-21 23:59:31,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-05-21 23:59:31,493 INFO L87 Difference]: Start difference. First operand 2421 states and 6101 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:31,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:59:31,896 INFO L93 Difference]: Finished difference Result 1815 states and 4350 transitions. [2021-05-21 23:59:31,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-21 23:59:31,896 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:59:31,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:59:31,898 INFO L225 Difference]: With dead ends: 1815 [2021-05-21 23:59:31,898 INFO L226 Difference]: Without dead ends: 1703 [2021-05-21 23:59:31,898 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 405.0ms TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2021-05-21 23:59:31,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2021-05-21 23:59:31,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1679. [2021-05-21 23:59:31,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1678 states have (on average 2.3969010727056017) internal successors, (4022), 1678 states have internal predecessors, (4022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:31,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 4022 transitions. [2021-05-21 23:59:31,911 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 4022 transitions. Word has length 119 [2021-05-21 23:59:31,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:59:31,911 INFO L482 AbstractCegarLoop]: Abstraction has 1679 states and 4022 transitions. [2021-05-21 23:59:31,911 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:31,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 4022 transitions. [2021-05-21 23:59:31,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:59:31,912 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:59:31,912 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:59:31,912 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2021-05-21 23:59:31,912 INFO L430 AbstractCegarLoop]: === Iteration 245 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:59:31,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:59:31,913 INFO L82 PathProgramCache]: Analyzing trace with hash 348133955, now seen corresponding path program 203 times [2021-05-21 23:59:31,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:59:31,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319306594] [2021-05-21 23:59:31,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:59:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:59:32,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:59:32,504 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:59:32,504 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319306594] [2021-05-21 23:59:32,504 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319306594] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:59:32,504 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:59:32,504 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:59:32,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257981677] [2021-05-21 23:59:32,505 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:59:32,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:59:32,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:59:32,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:59:32,505 INFO L87 Difference]: Start difference. First operand 1679 states and 4022 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:34,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:59:34,677 INFO L93 Difference]: Finished difference Result 1838 states and 4333 transitions. [2021-05-21 23:59:34,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:59:34,678 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:59:34,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:59:34,679 INFO L225 Difference]: With dead ends: 1838 [2021-05-21 23:59:34,679 INFO L226 Difference]: Without dead ends: 1735 [2021-05-21 23:59:34,680 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 1879.4ms TimeCoverageRelationStatistics Valid=451, Invalid=2201, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:59:34,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2021-05-21 23:59:34,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1713. [2021-05-21 23:59:34,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1712 states have (on average 2.3942757009345796) internal successors, (4099), 1712 states have internal predecessors, (4099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:34,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 4099 transitions. [2021-05-21 23:59:34,693 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 4099 transitions. Word has length 119 [2021-05-21 23:59:34,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:59:34,693 INFO L482 AbstractCegarLoop]: Abstraction has 1713 states and 4099 transitions. [2021-05-21 23:59:34,693 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:34,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 4099 transitions. [2021-05-21 23:59:34,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:59:34,695 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:59:34,695 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:59:34,695 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2021-05-21 23:59:34,695 INFO L430 AbstractCegarLoop]: === Iteration 246 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:59:34,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:59:34,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1824355017, now seen corresponding path program 204 times [2021-05-21 23:59:34,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:59:34,695 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134120536] [2021-05-21 23:59:34,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:59:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:59:35,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:59:35,285 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:59:35,286 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134120536] [2021-05-21 23:59:35,286 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134120536] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:59:35,286 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:59:35,286 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:59:35,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321817541] [2021-05-21 23:59:35,286 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:59:35,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:59:35,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:59:35,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:59:35,286 INFO L87 Difference]: Start difference. First operand 1713 states and 4099 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:37,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:59:37,574 INFO L93 Difference]: Finished difference Result 1874 states and 4409 transitions. [2021-05-21 23:59:37,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-21 23:59:37,575 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:59:37,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:59:37,576 INFO L225 Difference]: With dead ends: 1874 [2021-05-21 23:59:37,576 INFO L226 Difference]: Without dead ends: 1769 [2021-05-21 23:59:37,577 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 2011.4ms TimeCoverageRelationStatistics Valid=456, Invalid=2300, Unknown=0, NotChecked=0, Total=2756 [2021-05-21 23:59:37,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2021-05-21 23:59:37,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1715. [2021-05-21 23:59:37,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1714 states have (on average 2.3932322053675614) internal successors, (4102), 1714 states have internal predecessors, (4102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:37,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 4102 transitions. [2021-05-21 23:59:37,590 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 4102 transitions. Word has length 119 [2021-05-21 23:59:37,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:59:37,590 INFO L482 AbstractCegarLoop]: Abstraction has 1715 states and 4102 transitions. [2021-05-21 23:59:37,591 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:37,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 4102 transitions. [2021-05-21 23:59:37,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:59:37,592 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:59:37,592 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:59:37,592 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2021-05-21 23:59:37,592 INFO L430 AbstractCegarLoop]: === Iteration 247 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:59:37,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:59:37,592 INFO L82 PathProgramCache]: Analyzing trace with hash 2056843883, now seen corresponding path program 205 times [2021-05-21 23:59:37,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:59:37,592 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892809780] [2021-05-21 23:59:37,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:59:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:59:38,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:59:38,200 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:59:38,200 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892809780] [2021-05-21 23:59:38,200 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892809780] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:59:38,200 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:59:38,200 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:59:38,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098515201] [2021-05-21 23:59:38,200 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:59:38,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:59:38,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:59:38,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:59:38,201 INFO L87 Difference]: Start difference. First operand 1715 states and 4102 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:39,478 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-05-21 23:59:40,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:59:40,286 INFO L93 Difference]: Finished difference Result 1830 states and 4313 transitions. [2021-05-21 23:59:40,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:59:40,286 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:59:40,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:59:40,287 INFO L225 Difference]: With dead ends: 1830 [2021-05-21 23:59:40,287 INFO L226 Difference]: Without dead ends: 1725 [2021-05-21 23:59:40,288 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 1900.9ms TimeCoverageRelationStatistics Valid=452, Invalid=2200, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:59:40,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2021-05-21 23:59:40,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1707. [2021-05-21 23:59:40,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1706 states have (on average 2.392731535756155) internal successors, (4082), 1706 states have internal predecessors, (4082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:40,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 4082 transitions. [2021-05-21 23:59:40,301 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 4082 transitions. Word has length 119 [2021-05-21 23:59:40,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:59:40,301 INFO L482 AbstractCegarLoop]: Abstraction has 1707 states and 4082 transitions. [2021-05-21 23:59:40,301 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:40,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 4082 transitions. [2021-05-21 23:59:40,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:59:40,302 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:59:40,302 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:59:40,302 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2021-05-21 23:59:40,303 INFO L430 AbstractCegarLoop]: === Iteration 248 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:59:40,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:59:40,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1353455165, now seen corresponding path program 206 times [2021-05-21 23:59:40,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:59:40,303 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163288462] [2021-05-21 23:59:40,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:59:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:59:40,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:59:40,872 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:59:40,872 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163288462] [2021-05-21 23:59:40,872 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163288462] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:59:40,872 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:59:40,873 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:59:40,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247477850] [2021-05-21 23:59:40,873 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:59:40,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:59:40,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:59:40,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:59:40,873 INFO L87 Difference]: Start difference. First operand 1707 states and 4082 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:43,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:59:43,146 INFO L93 Difference]: Finished difference Result 1910 states and 4491 transitions. [2021-05-21 23:59:43,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-21 23:59:43,147 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:59:43,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:59:43,148 INFO L225 Difference]: With dead ends: 1910 [2021-05-21 23:59:43,148 INFO L226 Difference]: Without dead ends: 1775 [2021-05-21 23:59:43,148 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 2022.6ms TimeCoverageRelationStatistics Valid=468, Invalid=2394, Unknown=0, NotChecked=0, Total=2862 [2021-05-21 23:59:43,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2021-05-21 23:59:43,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1713. [2021-05-21 23:59:43,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1712 states have (on average 2.3896028037383177) internal successors, (4091), 1712 states have internal predecessors, (4091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:43,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 4091 transitions. [2021-05-21 23:59:43,162 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 4091 transitions. Word has length 119 [2021-05-21 23:59:43,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:59:43,162 INFO L482 AbstractCegarLoop]: Abstraction has 1713 states and 4091 transitions. [2021-05-21 23:59:43,162 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:43,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 4091 transitions. [2021-05-21 23:59:43,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:59:43,163 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:59:43,163 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:59:43,164 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2021-05-21 23:59:43,164 INFO L430 AbstractCegarLoop]: === Iteration 249 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:59:43,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:59:43,164 INFO L82 PathProgramCache]: Analyzing trace with hash 652802029, now seen corresponding path program 207 times [2021-05-21 23:59:43,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:59:43,164 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891579972] [2021-05-21 23:59:43,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:59:43,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:59:43,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:59:43,761 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:59:43,761 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891579972] [2021-05-21 23:59:43,761 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891579972] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:59:43,762 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:59:43,762 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:59:43,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815070013] [2021-05-21 23:59:43,762 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:59:43,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:59:43,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:59:43,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:59:43,762 INFO L87 Difference]: Start difference. First operand 1713 states and 4091 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:45,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:59:45,939 INFO L93 Difference]: Finished difference Result 1870 states and 4393 transitions. [2021-05-21 23:59:45,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-05-21 23:59:45,939 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:59:45,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:59:45,940 INFO L225 Difference]: With dead ends: 1870 [2021-05-21 23:59:45,940 INFO L226 Difference]: Without dead ends: 1765 [2021-05-21 23:59:45,940 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 1996.7ms TimeCoverageRelationStatistics Valid=458, Invalid=2298, Unknown=0, NotChecked=0, Total=2756 [2021-05-21 23:59:45,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2021-05-21 23:59:45,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1715. [2021-05-21 23:59:45,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1714 states have (on average 2.3885647607934657) internal successors, (4094), 1714 states have internal predecessors, (4094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:45,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 4094 transitions. [2021-05-21 23:59:45,954 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 4094 transitions. Word has length 119 [2021-05-21 23:59:45,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:59:45,954 INFO L482 AbstractCegarLoop]: Abstraction has 1715 states and 4094 transitions. [2021-05-21 23:59:45,954 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:45,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 4094 transitions. [2021-05-21 23:59:45,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:59:45,956 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:59:45,956 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:59:45,956 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2021-05-21 23:59:45,956 INFO L430 AbstractCegarLoop]: === Iteration 250 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:59:45,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:59:45,956 INFO L82 PathProgramCache]: Analyzing trace with hash 239033633, now seen corresponding path program 208 times [2021-05-21 23:59:45,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:59:45,956 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866886291] [2021-05-21 23:59:45,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:59:45,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:59:46,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:59:46,540 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:59:46,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866886291] [2021-05-21 23:59:46,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866886291] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:59:46,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:59:46,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:59:46,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56238237] [2021-05-21 23:59:46,540 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:59:46,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:59:46,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:59:46,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:59:46,541 INFO L87 Difference]: Start difference. First operand 1715 states and 4094 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:47,795 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-05-21 23:59:48,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:59:48,620 INFO L93 Difference]: Finished difference Result 1826 states and 4297 transitions. [2021-05-21 23:59:48,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-05-21 23:59:48,621 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:59:48,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:59:48,622 INFO L225 Difference]: With dead ends: 1826 [2021-05-21 23:59:48,622 INFO L226 Difference]: Without dead ends: 1703 [2021-05-21 23:59:48,622 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 1891.3ms TimeCoverageRelationStatistics Valid=453, Invalid=2199, Unknown=0, NotChecked=0, Total=2652 [2021-05-21 23:59:48,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2021-05-21 23:59:48,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1689. [2021-05-21 23:59:48,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1688 states have (on average 2.3862559241706163) internal successors, (4028), 1688 states have internal predecessors, (4028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:48,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 4028 transitions. [2021-05-21 23:59:48,635 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 4028 transitions. Word has length 119 [2021-05-21 23:59:48,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:59:48,635 INFO L482 AbstractCegarLoop]: Abstraction has 1689 states and 4028 transitions. [2021-05-21 23:59:48,635 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:48,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 4028 transitions. [2021-05-21 23:59:48,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:59:48,637 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:59:48,637 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:59:48,637 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2021-05-21 23:59:48,637 INFO L430 AbstractCegarLoop]: === Iteration 251 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:59:48,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:59:48,637 INFO L82 PathProgramCache]: Analyzing trace with hash 852774503, now seen corresponding path program 209 times [2021-05-21 23:59:48,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:59:48,637 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138621117] [2021-05-21 23:59:48,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:59:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:59:49,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:59:49,210 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:59:49,210 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138621117] [2021-05-21 23:59:49,210 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138621117] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:59:49,210 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:59:49,210 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:59:49,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185867385] [2021-05-21 23:59:49,210 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:59:49,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:59:49,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:59:49,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:59:49,211 INFO L87 Difference]: Start difference. First operand 1689 states and 4028 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:51,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:59:51,696 INFO L93 Difference]: Finished difference Result 2098 states and 5002 transitions. [2021-05-21 23:59:51,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-21 23:59:51,696 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:59:51,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:59:51,698 INFO L225 Difference]: With dead ends: 2098 [2021-05-21 23:59:51,698 INFO L226 Difference]: Without dead ends: 2003 [2021-05-21 23:59:51,698 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 2195.5ms TimeCoverageRelationStatistics Valid=484, Invalid=2486, Unknown=0, NotChecked=0, Total=2970 [2021-05-21 23:59:51,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2003 states. [2021-05-21 23:59:51,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2003 to 1917. [2021-05-21 23:59:51,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1917 states, 1916 states have (on average 2.4081419624217117) internal successors, (4614), 1916 states have internal predecessors, (4614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:51,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1917 states to 1917 states and 4614 transitions. [2021-05-21 23:59:51,721 INFO L78 Accepts]: Start accepts. Automaton has 1917 states and 4614 transitions. Word has length 119 [2021-05-21 23:59:51,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:59:51,721 INFO L482 AbstractCegarLoop]: Abstraction has 1917 states and 4614 transitions. [2021-05-21 23:59:51,721 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:51,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1917 states and 4614 transitions. [2021-05-21 23:59:51,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:59:51,723 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:59:51,723 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:59:51,723 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-05-21 23:59:51,723 INFO L430 AbstractCegarLoop]: === Iteration 252 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:59:51,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:59:51,723 INFO L82 PathProgramCache]: Analyzing trace with hash 378068201, now seen corresponding path program 210 times [2021-05-21 23:59:51,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:59:51,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005264472] [2021-05-21 23:59:51,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:59:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:59:52,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:59:52,310 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:59:52,310 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005264472] [2021-05-21 23:59:52,310 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005264472] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:59:52,310 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:59:52,310 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:59:52,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803073218] [2021-05-21 23:59:52,310 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:59:52,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:59:52,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:59:52,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:59:52,311 INFO L87 Difference]: Start difference. First operand 1917 states and 4614 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:54,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:59:54,895 INFO L93 Difference]: Finished difference Result 2321 states and 5505 transitions. [2021-05-21 23:59:54,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-21 23:59:54,895 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:59:54,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:59:54,897 INFO L225 Difference]: With dead ends: 2321 [2021-05-21 23:59:54,897 INFO L226 Difference]: Without dead ends: 1826 [2021-05-21 23:59:54,897 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 2320.9ms TimeCoverageRelationStatistics Valid=528, Invalid=2778, Unknown=0, NotChecked=0, Total=3306 [2021-05-21 23:59:54,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2021-05-21 23:59:54,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 1749. [2021-05-21 23:59:54,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 1748 states have (on average 2.3661327231121283) internal successors, (4136), 1748 states have internal predecessors, (4136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:54,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 4136 transitions. [2021-05-21 23:59:54,911 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 4136 transitions. Word has length 119 [2021-05-21 23:59:54,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:59:54,911 INFO L482 AbstractCegarLoop]: Abstraction has 1749 states and 4136 transitions. [2021-05-21 23:59:54,911 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:54,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 4136 transitions. [2021-05-21 23:59:54,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:59:54,912 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:59:54,913 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:59:54,913 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2021-05-21 23:59:54,913 INFO L430 AbstractCegarLoop]: === Iteration 253 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:59:54,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:59:54,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1613045767, now seen corresponding path program 211 times [2021-05-21 23:59:54,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:59:54,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594221849] [2021-05-21 23:59:54,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:59:54,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:59:55,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:59:55,506 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:59:55,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594221849] [2021-05-21 23:59:55,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594221849] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:59:55,507 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:59:55,507 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:59:55,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317577383] [2021-05-21 23:59:55,507 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:59:55,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:59:55,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:59:55,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:59:55,507 INFO L87 Difference]: Start difference. First operand 1749 states and 4136 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:57,458 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2021-05-21 23:59:57,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 23:59:57,995 INFO L93 Difference]: Finished difference Result 1898 states and 4424 transitions. [2021-05-21 23:59:57,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-21 23:59:57,995 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-21 23:59:57,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 23:59:57,997 INFO L225 Difference]: With dead ends: 1898 [2021-05-21 23:59:57,997 INFO L226 Difference]: Without dead ends: 1733 [2021-05-21 23:59:57,997 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 2198.6ms TimeCoverageRelationStatistics Valid=484, Invalid=2486, Unknown=0, NotChecked=0, Total=2970 [2021-05-21 23:59:58,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1733 states. [2021-05-21 23:59:58,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1733 to 1689. [2021-05-21 23:59:58,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1688 states have (on average 2.3507109004739335) internal successors, (3968), 1688 states have internal predecessors, (3968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:58,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 3968 transitions. [2021-05-21 23:59:58,010 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 3968 transitions. Word has length 119 [2021-05-21 23:59:58,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 23:59:58,011 INFO L482 AbstractCegarLoop]: Abstraction has 1689 states and 3968 transitions. [2021-05-21 23:59:58,011 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 23:59:58,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 3968 transitions. [2021-05-21 23:59:58,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-21 23:59:58,012 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 23:59:58,012 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 23:59:58,012 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2021-05-21 23:59:58,012 INFO L430 AbstractCegarLoop]: === Iteration 254 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 23:59:58,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 23:59:58,012 INFO L82 PathProgramCache]: Analyzing trace with hash -363529467, now seen corresponding path program 212 times [2021-05-21 23:59:58,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 23:59:58,013 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030826809] [2021-05-21 23:59:58,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 23:59:58,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 23:59:58,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 23:59:58,647 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 23:59:58,647 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030826809] [2021-05-21 23:59:58,647 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030826809] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 23:59:58,647 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 23:59:58,647 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-21 23:59:58,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838609675] [2021-05-21 23:59:58,647 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-21 23:59:58,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 23:59:58,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-21 23:59:58,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-21 23:59:58,648 INFO L87 Difference]: Start difference. First operand 1689 states and 3968 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:00:00,560 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-05-22 00:00:01,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:00:01,088 INFO L93 Difference]: Finished difference Result 1868 states and 4325 transitions. [2021-05-22 00:00:01,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-05-22 00:00:01,089 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-22 00:00:01,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:00:01,090 INFO L225 Difference]: With dead ends: 1868 [2021-05-22 00:00:01,090 INFO L226 Difference]: Without dead ends: 1553 [2021-05-22 00:00:01,090 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 2256.6ms TimeCoverageRelationStatistics Valid=484, Invalid=2486, Unknown=0, NotChecked=0, Total=2970 [2021-05-22 00:00:01,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2021-05-22 00:00:01,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1509. [2021-05-22 00:00:01,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1508 states have (on average 2.312997347480106) internal successors, (3488), 1508 states have internal predecessors, (3488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:00:01,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 3488 transitions. [2021-05-22 00:00:01,102 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 3488 transitions. Word has length 119 [2021-05-22 00:00:01,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:00:01,102 INFO L482 AbstractCegarLoop]: Abstraction has 1509 states and 3488 transitions. [2021-05-22 00:00:01,103 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:00:01,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 3488 transitions. [2021-05-22 00:00:01,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-22 00:00:01,104 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:00:01,104 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:00:01,104 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2021-05-22 00:00:01,104 INFO L430 AbstractCegarLoop]: === Iteration 255 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:00:01,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:00:01,104 INFO L82 PathProgramCache]: Analyzing trace with hash 425622033, now seen corresponding path program 213 times [2021-05-22 00:00:01,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:00:01,104 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002999558] [2021-05-22 00:00:01,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:00:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:00:01,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:00:01,711 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:00:01,711 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002999558] [2021-05-22 00:00:01,711 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002999558] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:00:01,711 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:00:01,711 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-22 00:00:01,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292738330] [2021-05-22 00:00:01,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-22 00:00:01,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:00:01,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-22 00:00:01,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-22 00:00:01,712 INFO L87 Difference]: Start difference. First operand 1509 states and 3488 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:00:04,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:00:04,421 INFO L93 Difference]: Finished difference Result 1900 states and 4381 transitions. [2021-05-22 00:00:04,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-22 00:00:04,421 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-22 00:00:04,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:00:04,423 INFO L225 Difference]: With dead ends: 1900 [2021-05-22 00:00:04,424 INFO L226 Difference]: Without dead ends: 1805 [2021-05-22 00:00:04,424 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 2357.3ms TimeCoverageRelationStatistics Valid=505, Invalid=2575, Unknown=0, NotChecked=0, Total=3080 [2021-05-22 00:00:04,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1805 states. [2021-05-22 00:00:04,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1805 to 1677. [2021-05-22 00:00:04,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1677 states, 1676 states have (on average 2.3305489260143197) internal successors, (3906), 1676 states have internal predecessors, (3906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:00:04,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1677 states to 1677 states and 3906 transitions. [2021-05-22 00:00:04,444 INFO L78 Accepts]: Start accepts. Automaton has 1677 states and 3906 transitions. Word has length 119 [2021-05-22 00:00:04,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:00:04,444 INFO L482 AbstractCegarLoop]: Abstraction has 1677 states and 3906 transitions. [2021-05-22 00:00:04,444 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:00:04,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1677 states and 3906 transitions. [2021-05-22 00:00:04,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-22 00:00:04,446 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:00:04,446 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:00:04,446 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2021-05-22 00:00:04,446 INFO L430 AbstractCegarLoop]: === Iteration 256 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:00:04,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:00:04,447 INFO L82 PathProgramCache]: Analyzing trace with hash -49084269, now seen corresponding path program 214 times [2021-05-22 00:00:04,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:00:04,447 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718097885] [2021-05-22 00:00:04,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:00:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:00:05,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:00:05,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:00:05,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718097885] [2021-05-22 00:00:05,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718097885] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:00:05,113 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:00:05,114 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-22 00:00:05,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106250979] [2021-05-22 00:00:05,115 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-22 00:00:05,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:00:05,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-22 00:00:05,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-22 00:00:05,115 INFO L87 Difference]: Start difference. First operand 1677 states and 3906 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:00:06,083 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-05-22 00:00:06,462 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-05-22 00:00:08,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:00:08,195 INFO L93 Difference]: Finished difference Result 2123 states and 4884 transitions. [2021-05-22 00:00:08,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-22 00:00:08,196 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-22 00:00:08,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:00:08,198 INFO L225 Difference]: With dead ends: 2123 [2021-05-22 00:00:08,198 INFO L226 Difference]: Without dead ends: 1628 [2021-05-22 00:00:08,198 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 2805.5ms TimeCoverageRelationStatistics Valid=549, Invalid=2873, Unknown=0, NotChecked=0, Total=3422 [2021-05-22 00:00:08,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2021-05-22 00:00:08,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1509. [2021-05-22 00:00:08,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1508 states have (on average 2.273209549071618) internal successors, (3428), 1508 states have internal predecessors, (3428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:00:08,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 3428 transitions. [2021-05-22 00:00:08,212 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 3428 transitions. Word has length 119 [2021-05-22 00:00:08,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:00:08,212 INFO L482 AbstractCegarLoop]: Abstraction has 1509 states and 3428 transitions. [2021-05-22 00:00:08,212 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:00:08,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 3428 transitions. [2021-05-22 00:00:08,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-22 00:00:08,213 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:00:08,214 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:00:08,214 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2021-05-22 00:00:08,214 INFO L430 AbstractCegarLoop]: === Iteration 257 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:00:08,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:00:08,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1185893297, now seen corresponding path program 215 times [2021-05-22 00:00:08,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:00:08,214 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134358776] [2021-05-22 00:00:08,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:00:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:00:08,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:00:08,826 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:00:08,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134358776] [2021-05-22 00:00:08,826 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134358776] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:00:08,826 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:00:08,826 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-22 00:00:08,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141673227] [2021-05-22 00:00:08,827 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-22 00:00:08,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:00:08,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-22 00:00:08,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-22 00:00:08,827 INFO L87 Difference]: Start difference. First operand 1509 states and 3428 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:00:09,638 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2021-05-22 00:00:09,775 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-05-22 00:00:10,718 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2021-05-22 00:00:11,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:00:11,553 INFO L93 Difference]: Finished difference Result 1700 states and 3803 transitions. [2021-05-22 00:00:11,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-22 00:00:11,555 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-22 00:00:11,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:00:11,557 INFO L225 Difference]: With dead ends: 1700 [2021-05-22 00:00:11,557 INFO L226 Difference]: Without dead ends: 1535 [2021-05-22 00:00:11,557 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 2459.1ms TimeCoverageRelationStatistics Valid=505, Invalid=2575, Unknown=0, NotChecked=0, Total=3080 [2021-05-22 00:00:11,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2021-05-22 00:00:11,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1449. [2021-05-22 00:00:11,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 1448 states have (on average 2.2845303867403315) internal successors, (3308), 1448 states have internal predecessors, (3308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:00:11,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 3308 transitions. [2021-05-22 00:00:11,569 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 3308 transitions. Word has length 119 [2021-05-22 00:00:11,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:00:11,569 INFO L482 AbstractCegarLoop]: Abstraction has 1449 states and 3308 transitions. [2021-05-22 00:00:11,569 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:00:11,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 3308 transitions. [2021-05-22 00:00:11,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-22 00:00:11,570 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:00:11,570 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:00:11,570 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2021-05-22 00:00:11,570 INFO L430 AbstractCegarLoop]: === Iteration 258 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:00:11,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:00:11,570 INFO L82 PathProgramCache]: Analyzing trace with hash -2068815291, now seen corresponding path program 216 times [2021-05-22 00:00:11,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:00:11,571 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840899313] [2021-05-22 00:00:11,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:00:11,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:00:12,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:00:12,243 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:00:12,243 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840899313] [2021-05-22 00:00:12,243 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840899313] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:00:12,243 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:00:12,243 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-22 00:00:12,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783612468] [2021-05-22 00:00:12,243 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-22 00:00:12,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:00:12,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-22 00:00:12,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-22 00:00:12,244 INFO L87 Difference]: Start difference. First operand 1449 states and 3308 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:00:13,344 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-05-22 00:00:14,100 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-05-22 00:00:15,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:00:15,094 INFO L93 Difference]: Finished difference Result 1592 states and 3579 transitions. [2021-05-22 00:00:15,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-05-22 00:00:15,094 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-05-22 00:00:15,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:00:15,096 INFO L225 Difference]: With dead ends: 1592 [2021-05-22 00:00:15,096 INFO L226 Difference]: Without dead ends: 1497 [2021-05-22 00:00:15,096 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 2621.4ms TimeCoverageRelationStatistics Valid=514, Invalid=2566, Unknown=0, NotChecked=0, Total=3080 [2021-05-22 00:00:15,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2021-05-22 00:00:15,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1449. [2021-05-22 00:00:15,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 1448 states have (on average 2.2748618784530388) internal successors, (3294), 1448 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:00:15,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 3294 transitions. [2021-05-22 00:00:15,107 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 3294 transitions. Word has length 119 [2021-05-22 00:00:15,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:00:15,108 INFO L482 AbstractCegarLoop]: Abstraction has 1449 states and 3294 transitions. [2021-05-22 00:00:15,108 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:00:15,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 3294 transitions. [2021-05-22 00:00:15,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-22 00:00:15,109 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:00:15,109 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:00:15,109 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-05-22 00:00:15,109 INFO L430 AbstractCegarLoop]: === Iteration 259 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:00:15,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:00:15,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1751445703, now seen corresponding path program 217 times [2021-05-22 00:00:15,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:00:15,110 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984658221] [2021-05-22 00:00:15,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:00:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:00:15,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:00:15,736 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:00:15,736 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984658221] [2021-05-22 00:00:15,736 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984658221] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:00:15,736 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:00:15,736 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-05-22 00:00:15,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206055475] [2021-05-22 00:00:15,737 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-05-22 00:00:15,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:00:15,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-05-22 00:00:15,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-05-22 00:00:15,737 INFO L87 Difference]: Start difference. First operand 1449 states and 3294 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:00:16,831 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 Received shutdown request... [2021-05-22 00:00:17,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-05-22 00:00:17,910 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2021-05-22 00:00:17,910 WARN L547 AbstractCegarLoop]: Verification canceled [2021-05-22 00:00:17,910 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was TIMEOUT (1/2) [2021-05-22 00:00:17,911 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-05-22 00:00:17,912 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-22 00:00:17,912 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-22 00:00:17,912 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-22 00:00:17,912 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-22 00:00:17,912 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-22 00:00:17,912 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-22 00:00:17,912 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-22 00:00:17,912 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-22 00:00:17,914 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 166 places, 170 transitions, 362 flow [2021-05-22 00:00:17,915 WARN L547 AbstractCegarLoop]: Verification canceled [2021-05-22 00:00:17,915 INFO L315 ceAbstractionStarter]: Result for error location InUseError was TIMEOUT (2/2) [2021-05-22 00:00:17,915 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-22 00:00:17,917 WARN L196 ceAbstractionStarter]: Timeout [2021-05-22 00:00:17,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.05 12:00:17 BasicIcfg [2021-05-22 00:00:17,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-22 00:00:17,918 INFO L168 Benchmark]: Toolchain (without parser) took 743566.12 ms. Allocated memory was 362.8 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 323.4 MB in the beginning and 1.0 GB in the end (delta: -691.8 MB). Peak memory consumption was 552.8 MB. Max. memory is 16.0 GB. [2021-05-22 00:00:17,918 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 362.8 MB. Free memory was 343.4 MB in the beginning and 343.3 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-22 00:00:17,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 730.71 ms. Allocated memory is still 362.8 MB. Free memory was 323.2 MB in the beginning and 302.0 MB in the end (delta: 21.2 MB). Peak memory consumption was 77.0 MB. Max. memory is 16.0 GB. [2021-05-22 00:00:17,918 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.83 ms. Allocated memory is still 362.8 MB. Free memory was 302.0 MB in the beginning and 298.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-22 00:00:17,918 INFO L168 Benchmark]: Boogie Preprocessor took 32.37 ms. Allocated memory is still 362.8 MB. Free memory was 297.8 MB in the beginning and 295.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-22 00:00:17,918 INFO L168 Benchmark]: RCFGBuilder took 544.62 ms. Allocated memory is still 362.8 MB. Free memory was 295.7 MB in the beginning and 247.5 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. [2021-05-22 00:00:17,919 INFO L168 Benchmark]: TraceAbstraction took 742210.38 ms. Allocated memory was 362.8 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 246.4 MB in the beginning and 1.0 GB in the end (delta: -768.8 MB). Peak memory consumption was 470.6 MB. Max. memory is 16.0 GB. [2021-05-22 00:00:17,919 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 362.8 MB. Free memory was 343.4 MB in the beginning and 343.3 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 730.71 ms. Allocated memory is still 362.8 MB. Free memory was 323.2 MB in the beginning and 302.0 MB in the end (delta: 21.2 MB). Peak memory consumption was 77.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 42.83 ms. Allocated memory is still 362.8 MB. Free memory was 302.0 MB in the beginning and 298.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.37 ms. Allocated memory is still 362.8 MB. Free memory was 297.8 MB in the beginning and 295.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 544.62 ms. Allocated memory is still 362.8 MB. Free memory was 295.7 MB in the beginning and 247.5 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 742210.38 ms. Allocated memory was 362.8 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 246.4 MB in the beginning and 1.0 GB in the end (delta: -768.8 MB). Peak memory consumption was 470.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (1449states) and FLOYD_HOARE automaton (currently 25 states, 28 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (1449states) and FLOYD_HOARE automaton (currently 25 states, 28 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (1449states) and FLOYD_HOARE automaton (currently 25 states, 28 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (1449states) and FLOYD_HOARE automaton (currently 25 states, 28 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (1449states) and FLOYD_HOARE automaton (currently 25 states, 28 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (1449states) and FLOYD_HOARE automaton (currently 25 states, 28 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 49 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 176 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 742101.1ms, OverallIterations: 259, TraceHistogramMax: 1, EmptinessCheckTime: 789.5ms, AutomataDifference: 587308.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 245.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 50041 SDtfs, 233760 SDslu, 582789 SDs, 0 SdLazy, 340301 SolverSat, 23785 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 147321.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14041 GetRequests, 805 SyntacticMatches, 525 SemanticMatches, 12710 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116364 ImplicationChecksByTransitivity, 505558.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8253occurred in iteration=4, InterpolantAutomatonStates: 7895, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 11654.9ms AutomataMinimizationTime, 258 MinimizatonAttempts, 209379 StatesRemovedByMinimization, 252 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 356.0ms SsaConstructionTime, 3258.3ms SatisfiabilityAnalysisTime, 136675.1ms InterpolantComputationTime, 30312 NumberOfCodeBlocks, 30312 NumberOfCodeBlocksAsserted, 259 NumberOfCheckSat, 30053 ConstructedInterpolants, 0 QuantifiedInterpolants, 632676 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 259 InterpolantComputations, 259 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 4 procedures, 176 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 2.9ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown