/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 17:28:42,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 17:28:42,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 17:28:42,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-21 17:28:42,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 17:28:42,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 17:28:42,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 17:28:42,313 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-05-21 17:28:42,327 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 17:28:42,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 17:28:42,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 17:28:42,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 17:28:42,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 17:28:42,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 17:28:42,328 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 17:28:42,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 17:28:42,328 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 17:28:42,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 17:28:42,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 17:28:42,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 17:28:42,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 17:28:42,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 17:28:42,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 17:28:42,329 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 17:28:42,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 17:28:42,329 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 17:28:42,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 17:28:42,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 17:28:42,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 17:28:42,329 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 17:28:42,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 17:28:42,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 17:28:42,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 17:28:42,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 17:28:42,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 17:28:42,330 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 17:28:42,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 17:28:42,330 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 17:28:42,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 17:28:42,330 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 17:28:42,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 17:28:42,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 17:28:42,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 17:28:42,544 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 17:28:42,545 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 17:28:42,545 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2021-05-21 17:28:42,604 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7965e310/835e8d5ce8f143aa832a86f5b028eeda/FLAG54d8fa35b [2021-05-21 17:28:43,044 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 17:28:43,045 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2021-05-21 17:28:43,078 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7965e310/835e8d5ce8f143aa832a86f5b028eeda/FLAG54d8fa35b [2021-05-21 17:28:43,089 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7965e310/835e8d5ce8f143aa832a86f5b028eeda [2021-05-21 17:28:43,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 17:28:43,091 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 17:28:43,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 17:28:43,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 17:28:43,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 17:28:43,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 05:28:43" (1/1) ... [2021-05-21 17:28:43,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49ed332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:28:43, skipping insertion in model container [2021-05-21 17:28:43,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 05:28:43" (1/1) ... [2021-05-21 17:28:43,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 17:28:43,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 17:28:43,678 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i[76077,76090] [2021-05-21 17:28:43,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 17:28:43,709 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 17:28:43,743 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i[76077,76090] [2021-05-21 17:28:43,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 17:28:43,953 INFO L208 MainTranslator]: Completed translation [2021-05-21 17:28:43,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:28:43 WrapperNode [2021-05-21 17:28:43,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 17:28:43,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 17:28:43,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 17:28:43,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 17:28:43,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:28:43" (1/1) ... [2021-05-21 17:28:43,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:28:43" (1/1) ... [2021-05-21 17:28:44,011 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 17:28:44,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 17:28:44,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 17:28:44,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 17:28:44,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:28:43" (1/1) ... [2021-05-21 17:28:44,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:28:43" (1/1) ... [2021-05-21 17:28:44,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:28:43" (1/1) ... [2021-05-21 17:28:44,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:28:43" (1/1) ... [2021-05-21 17:28:44,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:28:43" (1/1) ... [2021-05-21 17:28:44,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:28:43" (1/1) ... [2021-05-21 17:28:44,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:28:43" (1/1) ... [2021-05-21 17:28:44,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 17:28:44,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 17:28:44,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 17:28:44,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 17:28:44,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:28:43" (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 17:28:44,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 17:28:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-21 17:28:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-05-21 17:28:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-05-21 17:28:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 17:28:44,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 17:28:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-05-21 17:28:44,098 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-05-21 17:28:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 17:28:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 17:28:44,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 17:28:44,099 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 17:28:44,605 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 17:28:44,606 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-05-21 17:28:44,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 05:28:44 BoogieIcfgContainer [2021-05-21 17:28:44,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 17:28:44,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 17:28:44,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 17:28:44,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 17:28:44,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 05:28:43" (1/3) ... [2021-05-21 17:28:44,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@444a151d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 05:28:44, skipping insertion in model container [2021-05-21 17:28:44,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 05:28:43" (2/3) ... [2021-05-21 17:28:44,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@444a151d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 05:28:44, skipping insertion in model container [2021-05-21 17:28:44,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 05:28:44" (3/3) ... [2021-05-21 17:28:44,612 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2021-05-21 17:28:44,616 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 17:28:44,616 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 17:28:44,616 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-05-21 17:28:44,617 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 17:28:44,653 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,653 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,653 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,653 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,654 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,654 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,654 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,654 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,654 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,654 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,655 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,655 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,655 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,655 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,655 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,655 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,655 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,656 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,656 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,656 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,656 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,656 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,656 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,656 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,656 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,656 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,656 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,656 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,656 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,656 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,657 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,657 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,657 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,657 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,657 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,657 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,657 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,658 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,658 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,658 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,658 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,658 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,659 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,659 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,659 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,659 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,659 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,659 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,659 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,659 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,659 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,659 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,659 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,659 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,660 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,660 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,660 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,660 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,660 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,660 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,660 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,660 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,661 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,661 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,661 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,661 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,661 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,661 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,661 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,661 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,661 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,661 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,661 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,661 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,662 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,662 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,662 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,662 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,662 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,662 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,662 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,662 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,662 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,662 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,663 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,663 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,663 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,663 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,663 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,663 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,663 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,663 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,663 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,663 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,663 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,664 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,664 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,664 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,665 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,665 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,667 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,667 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,667 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,667 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,670 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,671 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,671 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,671 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,671 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,671 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,671 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,672 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,672 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,672 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,672 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,672 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,672 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,672 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,672 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,672 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,672 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,672 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,673 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,673 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,673 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,673 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,673 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,673 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,673 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,673 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,673 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,673 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,674 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,674 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,674 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,674 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,674 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,674 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,674 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,674 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,676 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,677 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,677 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,677 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,677 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,677 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,677 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,677 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,677 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,677 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,677 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,677 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,696 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,696 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,696 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,696 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,696 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,696 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,696 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,696 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,696 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,697 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,697 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,697 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 17:28:44,707 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-05-21 17:28:44,721 INFO L255 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-05-21 17:28:44,741 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 17:28:44,741 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 17:28:44,742 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 17:28:44,742 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 17:28:44,742 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 17:28:44,742 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 17:28:44,742 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 17:28:44,742 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 17:28:44,753 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 167 places, 171 transitions, 364 flow [2021-05-21 17:28:44,985 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9357 states, 9346 states have (on average 2.8477423496683074) internal successors, (26615), 9356 states have internal predecessors, (26615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:45,008 INFO L276 IsEmpty]: Start isEmpty. Operand has 9357 states, 9346 states have (on average 2.8477423496683074) internal successors, (26615), 9356 states have internal predecessors, (26615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:45,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-05-21 17:28:45,012 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:28:45,013 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] [2021-05-21 17:28:45,013 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:28:45,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:28:45,016 INFO L82 PathProgramCache]: Analyzing trace with hash 4312800, now seen corresponding path program 1 times [2021-05-21 17:28:45,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:28:45,022 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461981610] [2021-05-21 17:28:45,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:28:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:28:45,331 INFO 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 17:28:45,332 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:28:45,332 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461981610] [2021-05-21 17:28:45,333 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461981610] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:28:45,333 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:28:45,333 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 17:28:45,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794903338] [2021-05-21 17:28:45,336 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 17:28:45,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:28:45,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 17:28:45,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 17:28:45,368 INFO L87 Difference]: Start difference. First operand has 9357 states, 9346 states have (on average 2.8477423496683074) internal successors, (26615), 9356 states have internal predecessors, (26615), 0 states have call successors, (0), 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 17:28:45,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:28:45,642 INFO L93 Difference]: Finished difference Result 8904 states and 24865 transitions. [2021-05-21 17:28:45,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-21 17:28:45,644 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 17:28:45,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:28:45,682 INFO L225 Difference]: With dead ends: 8904 [2021-05-21 17:28:45,682 INFO L226 Difference]: Without dead ends: 7312 [2021-05-21 17:28:45,683 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 86.4ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-05-21 17:28:45,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7312 states. [2021-05-21 17:28:45,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7312 to 7311. [2021-05-21 17:28:45,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7311 states, 7304 states have (on average 2.7836801752464404) internal successors, (20332), 7310 states have internal predecessors, (20332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:45,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7311 states to 7311 states and 20332 transitions. [2021-05-21 17:28:45,892 INFO L78 Accepts]: Start accepts. Automaton has 7311 states and 20332 transitions. Word has length 36 [2021-05-21 17:28:45,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:28:45,892 INFO L482 AbstractCegarLoop]: Abstraction has 7311 states and 20332 transitions. [2021-05-21 17:28:45,892 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 17:28:45,892 INFO L276 IsEmpty]: Start isEmpty. Operand 7311 states and 20332 transitions. [2021-05-21 17:28:45,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-05-21 17:28:45,893 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:28:45,893 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:28:45,893 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 17:28:45,893 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:28:45,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:28:45,894 INFO L82 PathProgramCache]: Analyzing trace with hash -334882016, now seen corresponding path program 1 times [2021-05-21 17:28:45,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:28:45,894 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617012554] [2021-05-21 17:28:45,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:28:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:28:45,978 INFO 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 17:28:45,978 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:28:45,978 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617012554] [2021-05-21 17:28:45,978 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617012554] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:28:45,979 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:28:45,979 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 17:28:45,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433425598] [2021-05-21 17:28:45,980 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 17:28:45,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:28:45,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 17:28:45,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 17:28:45,982 INFO L87 Difference]: Start difference. First operand 7311 states and 20332 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:46,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:28:46,246 INFO L93 Difference]: Finished difference Result 7313 states and 20334 transitions. [2021-05-21 17:28:46,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-21 17:28:46,246 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 17:28:46,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:28:46,270 INFO L225 Difference]: With dead ends: 7313 [2021-05-21 17:28:46,270 INFO L226 Difference]: Without dead ends: 7313 [2021-05-21 17:28:46,271 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 88.8ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-05-21 17:28:46,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7313 states. [2021-05-21 17:28:46,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7313 to 7309. [2021-05-21 17:28:46,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7309 states, 7303 states have (on average 2.7837874845953716) internal successors, (20330), 7308 states have internal predecessors, (20330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:46,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7309 states to 7309 states and 20330 transitions. [2021-05-21 17:28:46,444 INFO L78 Accepts]: Start accepts. Automaton has 7309 states and 20330 transitions. Word has length 42 [2021-05-21 17:28:46,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:28:46,445 INFO L482 AbstractCegarLoop]: Abstraction has 7309 states and 20330 transitions. [2021-05-21 17:28:46,445 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 17:28:46,445 INFO L276 IsEmpty]: Start isEmpty. Operand 7309 states and 20330 transitions. [2021-05-21 17:28:46,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-05-21 17:28:46,447 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:28:46,447 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] [2021-05-21 17:28:46,447 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 17:28:46,447 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:28:46,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:28:46,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1888111070, now seen corresponding path program 1 times [2021-05-21 17:28:46,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:28:46,448 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617247846] [2021-05-21 17:28:46,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:28:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:28:46,554 INFO 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 17:28:46,554 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:28:46,554 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617247846] [2021-05-21 17:28:46,554 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617247846] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:28:46,554 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:28:46,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 17:28:46,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611420750] [2021-05-21 17:28:46,555 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 17:28:46,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:28:46,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 17:28:46,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 17:28:46,557 INFO L87 Difference]: Start difference. First operand 7309 states and 20330 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:46,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:28:46,912 INFO L93 Difference]: Finished difference Result 10560 states and 29296 transitions. [2021-05-21 17:28:46,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-21 17:28:46,912 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 17:28:46,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:28:46,947 INFO L225 Difference]: With dead ends: 10560 [2021-05-21 17:28:46,947 INFO L226 Difference]: Without dead ends: 10560 [2021-05-21 17:28:46,947 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 145.0ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-05-21 17:28:46,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10560 states. [2021-05-21 17:28:47,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10560 to 8145. [2021-05-21 17:28:47,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8145 states, 8140 states have (on average 2.784029484029484) internal successors, (22662), 8144 states have internal predecessors, (22662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:47,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8145 states to 8145 states and 22662 transitions. [2021-05-21 17:28:47,146 INFO L78 Accepts]: Start accepts. Automaton has 8145 states and 22662 transitions. Word has length 60 [2021-05-21 17:28:47,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:28:47,146 INFO L482 AbstractCegarLoop]: Abstraction has 8145 states and 22662 transitions. [2021-05-21 17:28:47,146 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 17:28:47,146 INFO L276 IsEmpty]: Start isEmpty. Operand 8145 states and 22662 transitions. [2021-05-21 17:28:47,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-05-21 17:28:47,149 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:28:47,149 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:28:47,149 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 17:28:47,149 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:28:47,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:28:47,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1332255701, now seen corresponding path program 1 times [2021-05-21 17:28:47,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:28:47,150 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147363790] [2021-05-21 17:28:47,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:28:47,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:28:47,227 INFO 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 17:28:47,227 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:28:47,227 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147363790] [2021-05-21 17:28:47,227 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147363790] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:28:47,227 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:28:47,227 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-21 17:28:47,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416622170] [2021-05-21 17:28:47,228 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-21 17:28:47,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:28:47,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-21 17:28:47,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-05-21 17:28:47,228 INFO L87 Difference]: Start difference. First operand 8145 states and 22662 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:47,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:28:47,522 INFO L93 Difference]: Finished difference Result 11396 states and 31467 transitions. [2021-05-21 17:28:47,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-21 17:28:47,522 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 17:28:47,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:28:47,538 INFO L225 Difference]: With dead ends: 11396 [2021-05-21 17:28:47,539 INFO L226 Difference]: Without dead ends: 9607 [2021-05-21 17:28:47,539 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 93.0ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-05-21 17:28:47,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9607 states. [2021-05-21 17:28:47,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9607 to 9285. [2021-05-21 17:28:47,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9285 states, 9281 states have (on average 2.7852602090291994) internal successors, (25850), 9284 states have internal predecessors, (25850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:47,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9285 states to 9285 states and 25850 transitions. [2021-05-21 17:28:47,745 INFO L78 Accepts]: Start accepts. Automaton has 9285 states and 25850 transitions. Word has length 66 [2021-05-21 17:28:47,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:28:47,745 INFO L482 AbstractCegarLoop]: Abstraction has 9285 states and 25850 transitions. [2021-05-21 17:28:47,746 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 17:28:47,746 INFO L276 IsEmpty]: Start isEmpty. Operand 9285 states and 25850 transitions. [2021-05-21 17:28:47,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-05-21 17:28:47,752 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:28:47,752 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:28:47,752 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 17:28:47,752 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:28:47,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:28:47,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1121796277, now seen corresponding path program 1 times [2021-05-21 17:28:47,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:28:47,753 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227740923] [2021-05-21 17:28:47,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:28:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:28:47,803 INFO 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 17:28:47,803 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:28:47,803 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227740923] [2021-05-21 17:28:47,803 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227740923] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:28:47,803 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:28:47,803 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-21 17:28:47,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758496245] [2021-05-21 17:28:47,804 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-21 17:28:47,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:28:47,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-21 17:28:47,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-21 17:28:47,804 INFO L87 Difference]: Start difference. First operand 9285 states and 25850 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:47,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:28:47,833 INFO L93 Difference]: Finished difference Result 3460 states and 9340 transitions. [2021-05-21 17:28:47,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-21 17:28:47,833 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 17:28:47,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:28:47,838 INFO L225 Difference]: With dead ends: 3460 [2021-05-21 17:28:47,838 INFO L226 Difference]: Without dead ends: 3460 [2021-05-21 17:28:47,838 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-05-21 17:28:47,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3460 states. [2021-05-21 17:28:47,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3460 to 3460. [2021-05-21 17:28:47,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3460 states, 3458 states have (on average 2.700983227299017) internal successors, (9340), 3459 states have internal predecessors, (9340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:47,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3460 states to 3460 states and 9340 transitions. [2021-05-21 17:28:47,922 INFO L78 Accepts]: Start accepts. Automaton has 3460 states and 9340 transitions. Word has length 80 [2021-05-21 17:28:47,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:28:47,922 INFO L482 AbstractCegarLoop]: Abstraction has 3460 states and 9340 transitions. [2021-05-21 17:28:47,922 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 17:28:47,922 INFO L276 IsEmpty]: Start isEmpty. Operand 3460 states and 9340 transitions. [2021-05-21 17:28:47,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:28:47,932 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:28:47,933 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:28:47,933 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 17:28:47,933 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:28:47,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:28:47,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1343474486, now seen corresponding path program 1 times [2021-05-21 17:28:47,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:28:47,934 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898212359] [2021-05-21 17:28:47,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:28:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:28:48,550 INFO 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 17:28:48,550 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:28:48,550 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898212359] [2021-05-21 17:28:48,550 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898212359] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:28:48,551 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:28:48,551 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:28:48,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904317802] [2021-05-21 17:28:48,551 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:28:48,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:28:48,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:28:48,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:28:48,552 INFO L87 Difference]: Start difference. First operand 3460 states and 9340 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:49,516 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:28:49,699 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:28:49,917 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:28:50,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:28:50,064 INFO L93 Difference]: Finished difference Result 4246 states and 11446 transitions. [2021-05-21 17:28:50,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:28:50,065 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:28:50,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:28:50,072 INFO L225 Difference]: With dead ends: 4246 [2021-05-21 17:28:50,072 INFO L226 Difference]: Without dead ends: 4246 [2021-05-21 17:28:50,072 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1469.7ms TimeCoverageRelationStatistics Valid=292, Invalid=700, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:28:50,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4246 states. [2021-05-21 17:28:50,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4246 to 3964. [2021-05-21 17:28:50,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3964 states, 3962 states have (on average 2.708732963149924) internal successors, (10732), 3963 states have internal predecessors, (10732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:50,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3964 states to 3964 states and 10732 transitions. [2021-05-21 17:28:50,134 INFO L78 Accepts]: Start accepts. Automaton has 3964 states and 10732 transitions. Word has length 114 [2021-05-21 17:28:50,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:28:50,135 INFO L482 AbstractCegarLoop]: Abstraction has 3964 states and 10732 transitions. [2021-05-21 17:28:50,136 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:50,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3964 states and 10732 transitions. [2021-05-21 17:28:50,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:28:50,144 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:28:50,144 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:28:50,144 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 17:28:50,144 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:28:50,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:28:50,145 INFO L82 PathProgramCache]: Analyzing trace with hash 637173482, now seen corresponding path program 2 times [2021-05-21 17:28:50,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:28:50,145 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714688991] [2021-05-21 17:28:50,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:28:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:28:50,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:28:50,592 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:28:50,592 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714688991] [2021-05-21 17:28:50,593 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714688991] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:28:50,593 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:28:50,593 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-05-21 17:28:50,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993887652] [2021-05-21 17:28:50,593 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-21 17:28:50,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:28:50,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-21 17:28:50,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-05-21 17:28:50,594 INFO L87 Difference]: Start difference. First operand 3964 states and 10732 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:51,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:28:51,763 INFO L93 Difference]: Finished difference Result 4833 states and 12790 transitions. [2021-05-21 17:28:51,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-21 17:28:51,763 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:28:51,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:28:51,769 INFO L225 Difference]: With dead ends: 4833 [2021-05-21 17:28:51,769 INFO L226 Difference]: Without dead ends: 4833 [2021-05-21 17:28:51,770 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 915.1ms TimeCoverageRelationStatistics Valid=329, Invalid=793, Unknown=0, NotChecked=0, Total=1122 [2021-05-21 17:28:51,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4833 states. [2021-05-21 17:28:51,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4833 to 4524. [2021-05-21 17:28:51,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4524 states, 4522 states have (on average 2.680451127819549) internal successors, (12121), 4523 states have internal predecessors, (12121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:51,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 12121 transitions. [2021-05-21 17:28:51,822 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 12121 transitions. Word has length 114 [2021-05-21 17:28:51,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:28:51,823 INFO L482 AbstractCegarLoop]: Abstraction has 4524 states and 12121 transitions. [2021-05-21 17:28:51,823 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:51,823 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 12121 transitions. [2021-05-21 17:28:51,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:28:51,828 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:28:51,828 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] [2021-05-21 17:28:51,828 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-21 17:28:51,829 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:28:51,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:28:51,829 INFO L82 PathProgramCache]: Analyzing trace with hash -419622886, now seen corresponding path program 3 times [2021-05-21 17:28:51,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:28:51,829 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900911960] [2021-05-21 17:28:51,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:28:51,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:28:52,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:28:52,197 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:28:52,197 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900911960] [2021-05-21 17:28:52,197 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900911960] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:28:52,197 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:28:52,197 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-05-21 17:28:52,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71142022] [2021-05-21 17:28:52,198 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-21 17:28:52,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:28:52,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-21 17:28:52,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-05-21 17:28:52,199 INFO L87 Difference]: Start difference. First operand 4524 states and 12121 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:53,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:28:53,315 INFO L93 Difference]: Finished difference Result 5240 states and 13612 transitions. [2021-05-21 17:28:53,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-21 17:28:53,315 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:28:53,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:28:53,321 INFO L225 Difference]: With dead ends: 5240 [2021-05-21 17:28:53,321 INFO L226 Difference]: Without dead ends: 5240 [2021-05-21 17:28:53,322 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 959.5ms TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2021-05-21 17:28:53,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5240 states. [2021-05-21 17:28:53,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5240 to 4641. [2021-05-21 17:28:53,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4641 states, 4639 states have (on average 2.6704031041172667) internal successors, (12388), 4640 states have internal predecessors, (12388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:53,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4641 states to 4641 states and 12388 transitions. [2021-05-21 17:28:53,379 INFO L78 Accepts]: Start accepts. Automaton has 4641 states and 12388 transitions. Word has length 114 [2021-05-21 17:28:53,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:28:53,379 INFO L482 AbstractCegarLoop]: Abstraction has 4641 states and 12388 transitions. [2021-05-21 17:28:53,379 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:53,379 INFO L276 IsEmpty]: Start isEmpty. Operand 4641 states and 12388 transitions. [2021-05-21 17:28:53,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:28:53,385 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:28:53,385 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:28:53,385 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-21 17:28:53,385 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:28:53,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:28:53,385 INFO L82 PathProgramCache]: Analyzing trace with hash 2100918854, now seen corresponding path program 4 times [2021-05-21 17:28:53,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:28:53,385 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374762509] [2021-05-21 17:28:53,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:28:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:28:53,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:28:53,713 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:28:53,713 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374762509] [2021-05-21 17:28:53,713 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374762509] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:28:53,714 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:28:53,714 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-05-21 17:28:53,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931176139] [2021-05-21 17:28:53,714 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-21 17:28:53,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:28:53,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-21 17:28:53,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-05-21 17:28:53,715 INFO L87 Difference]: Start difference. First operand 4641 states and 12388 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:54,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:28:54,799 INFO L93 Difference]: Finished difference Result 5618 states and 14458 transitions. [2021-05-21 17:28:54,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-21 17:28:54,800 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:28:54,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:28:54,805 INFO L225 Difference]: With dead ends: 5618 [2021-05-21 17:28:54,805 INFO L226 Difference]: Without dead ends: 5618 [2021-05-21 17:28:54,806 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 949.7ms TimeCoverageRelationStatistics Valid=349, Invalid=911, Unknown=0, NotChecked=0, Total=1260 [2021-05-21 17:28:54,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5618 states. [2021-05-21 17:28:54,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5618 to 4688. [2021-05-21 17:28:54,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4688 states, 4686 states have (on average 2.667733674775928) internal successors, (12501), 4687 states have internal predecessors, (12501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:54,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4688 states to 4688 states and 12501 transitions. [2021-05-21 17:28:54,913 INFO L78 Accepts]: Start accepts. Automaton has 4688 states and 12501 transitions. Word has length 114 [2021-05-21 17:28:54,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:28:54,913 INFO L482 AbstractCegarLoop]: Abstraction has 4688 states and 12501 transitions. [2021-05-21 17:28:54,913 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:54,913 INFO L276 IsEmpty]: Start isEmpty. Operand 4688 states and 12501 transitions. [2021-05-21 17:28:54,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:28:54,919 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:28:54,919 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:28:54,919 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-05-21 17:28:54,920 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:28:54,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:28:54,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1746124458, now seen corresponding path program 5 times [2021-05-21 17:28:54,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:28:54,920 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813278952] [2021-05-21 17:28:54,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:28:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:28:55,304 INFO 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 17:28:55,305 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:28:55,305 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813278952] [2021-05-21 17:28:55,305 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813278952] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:28:55,305 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:28:55,305 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-05-21 17:28:55,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652299185] [2021-05-21 17:28:55,305 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-21 17:28:55,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:28:55,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-21 17:28:55,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-05-21 17:28:55,306 INFO L87 Difference]: Start difference. First operand 4688 states and 12501 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:56,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:28:56,385 INFO L93 Difference]: Finished difference Result 5759 states and 14797 transitions. [2021-05-21 17:28:56,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-21 17:28:56,385 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:28:56,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:28:56,390 INFO L225 Difference]: With dead ends: 5759 [2021-05-21 17:28:56,390 INFO L226 Difference]: Without dead ends: 5759 [2021-05-21 17:28:56,391 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 939.1ms TimeCoverageRelationStatistics Valid=338, Invalid=922, Unknown=0, NotChecked=0, Total=1260 [2021-05-21 17:28:56,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5759 states. [2021-05-21 17:28:56,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5759 to 4782. [2021-05-21 17:28:56,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4782 states, 4780 states have (on average 2.6625523012552303) internal successors, (12727), 4781 states have internal predecessors, (12727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:56,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4782 states to 4782 states and 12727 transitions. [2021-05-21 17:28:56,451 INFO L78 Accepts]: Start accepts. Automaton has 4782 states and 12727 transitions. Word has length 114 [2021-05-21 17:28:56,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:28:56,452 INFO L482 AbstractCegarLoop]: Abstraction has 4782 states and 12727 transitions. [2021-05-21 17:28:56,452 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:56,452 INFO L276 IsEmpty]: Start isEmpty. Operand 4782 states and 12727 transitions. [2021-05-21 17:28:56,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:28:56,458 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:28:56,458 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:28:56,458 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-05-21 17:28:56,459 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:28:56,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:28:56,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1513055446, now seen corresponding path program 6 times [2021-05-21 17:28:56,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:28:56,459 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105929868] [2021-05-21 17:28:56,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:28:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:28:56,815 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 17:28:56,815 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:28:56,815 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105929868] [2021-05-21 17:28:56,815 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105929868] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:28:56,815 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:28:56,815 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-05-21 17:28:56,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303277437] [2021-05-21 17:28:56,816 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-21 17:28:56,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:28:56,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-21 17:28:56,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-05-21 17:28:56,817 INFO L87 Difference]: Start difference. First operand 4782 states and 12727 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:57,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:28:57,866 INFO L93 Difference]: Finished difference Result 5900 states and 15136 transitions. [2021-05-21 17:28:57,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-21 17:28:57,866 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:28:57,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:28:57,870 INFO L225 Difference]: With dead ends: 5900 [2021-05-21 17:28:57,870 INFO L226 Difference]: Without dead ends: 5900 [2021-05-21 17:28:57,870 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 909.0ms TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2021-05-21 17:28:57,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5900 states. [2021-05-21 17:28:57,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5900 to 4829. [2021-05-21 17:28:57,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4829 states, 4827 states have (on average 2.6600372902423866) internal successors, (12840), 4828 states have internal predecessors, (12840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:57,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4829 states to 4829 states and 12840 transitions. [2021-05-21 17:28:57,928 INFO L78 Accepts]: Start accepts. Automaton has 4829 states and 12840 transitions. Word has length 114 [2021-05-21 17:28:57,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:28:57,928 INFO L482 AbstractCegarLoop]: Abstraction has 4829 states and 12840 transitions. [2021-05-21 17:28:57,928 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:57,928 INFO L276 IsEmpty]: Start isEmpty. Operand 4829 states and 12840 transitions. [2021-05-21 17:28:57,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:28:57,933 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:28:57,934 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:28:57,934 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-05-21 17:28:57,934 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:28:57,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:28:57,934 INFO L82 PathProgramCache]: Analyzing trace with hash 250954822, now seen corresponding path program 7 times [2021-05-21 17:28:57,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:28:57,934 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378828859] [2021-05-21 17:28:57,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:28:57,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:28:58,266 INFO 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 17:28:58,266 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:28:58,266 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378828859] [2021-05-21 17:28:58,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378828859] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:28:58,266 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:28:58,267 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-05-21 17:28:58,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446056493] [2021-05-21 17:28:58,267 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-21 17:28:58,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:28:58,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-21 17:28:58,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-05-21 17:28:58,268 INFO L87 Difference]: Start difference. First operand 4829 states and 12840 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:59,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:28:59,220 INFO L93 Difference]: Finished difference Result 5302 states and 13818 transitions. [2021-05-21 17:28:59,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-21 17:28:59,220 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:28:59,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:28:59,224 INFO L225 Difference]: With dead ends: 5302 [2021-05-21 17:28:59,224 INFO L226 Difference]: Without dead ends: 5302 [2021-05-21 17:28:59,225 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 823.1ms TimeCoverageRelationStatistics Valid=316, Invalid=944, Unknown=0, NotChecked=0, Total=1260 [2021-05-21 17:28:59,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5302 states. [2021-05-21 17:28:59,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5302 to 4524. [2021-05-21 17:28:59,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4524 states, 4522 states have (on average 2.680451127819549) internal successors, (12121), 4523 states have internal predecessors, (12121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:59,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4524 states to 4524 states and 12121 transitions. [2021-05-21 17:28:59,277 INFO L78 Accepts]: Start accepts. Automaton has 4524 states and 12121 transitions. Word has length 114 [2021-05-21 17:28:59,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:28:59,277 INFO L482 AbstractCegarLoop]: Abstraction has 4524 states and 12121 transitions. [2021-05-21 17:28:59,277 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:28:59,277 INFO L276 IsEmpty]: Start isEmpty. Operand 4524 states and 12121 transitions. [2021-05-21 17:28:59,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:28:59,282 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:28:59,282 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:28:59,282 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-05-21 17:28:59,282 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:28:59,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:28:59,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1970428110, now seen corresponding path program 8 times [2021-05-21 17:28:59,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:28:59,282 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415558360] [2021-05-21 17:28:59,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:28:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:28:59,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:28:59,657 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:28:59,657 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415558360] [2021-05-21 17:28:59,657 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415558360] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:28:59,657 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:28:59,657 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:28:59,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680110629] [2021-05-21 17:28:59,657 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:28:59,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:28:59,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:28:59,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:28:59,658 INFO L87 Difference]: Start difference. First operand 4524 states and 12121 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:00,345 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:29:00,476 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:29:00,659 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:29:00,830 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:29:00,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:00,952 INFO L93 Difference]: Finished difference Result 8731 states and 23481 transitions. [2021-05-21 17:29:00,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:00,952 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:00,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:00,962 INFO L225 Difference]: With dead ends: 8731 [2021-05-21 17:29:00,962 INFO L226 Difference]: Without dead ends: 8731 [2021-05-21 17:29:00,962 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1215.4ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:00,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8731 states. [2021-05-21 17:29:01,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8731 to 4580. [2021-05-21 17:29:01,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4580 states, 4578 states have (on average 2.68348623853211) internal successors, (12285), 4579 states have internal predecessors, (12285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:01,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4580 states to 4580 states and 12285 transitions. [2021-05-21 17:29:01,031 INFO L78 Accepts]: Start accepts. Automaton has 4580 states and 12285 transitions. Word has length 114 [2021-05-21 17:29:01,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:01,031 INFO L482 AbstractCegarLoop]: Abstraction has 4580 states and 12285 transitions. [2021-05-21 17:29:01,031 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:01,031 INFO L276 IsEmpty]: Start isEmpty. Operand 4580 states and 12285 transitions. [2021-05-21 17:29:01,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:01,036 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:01,036 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:01,036 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-05-21 17:29:01,036 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:01,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:01,037 INFO L82 PathProgramCache]: Analyzing trace with hash -411302450, now seen corresponding path program 9 times [2021-05-21 17:29:01,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:01,037 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087316570] [2021-05-21 17:29:01,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:01,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:29:01,410 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:01,410 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087316570] [2021-05-21 17:29:01,411 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087316570] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:01,411 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:01,411 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:01,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869994639] [2021-05-21 17:29:01,411 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:01,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:01,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:01,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:01,411 INFO L87 Difference]: Start difference. First operand 4580 states and 12285 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:02,252 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:29:02,409 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:29:02,598 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:29:02,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:02,705 INFO L93 Difference]: Finished difference Result 8479 states and 22743 transitions. [2021-05-21 17:29:02,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:02,705 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:02,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:02,712 INFO L225 Difference]: With dead ends: 8479 [2021-05-21 17:29:02,712 INFO L226 Difference]: Without dead ends: 8479 [2021-05-21 17:29:02,712 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1228.2ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:02,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8479 states. [2021-05-21 17:29:02,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8479 to 4594. [2021-05-21 17:29:02,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4594 states, 4592 states have (on average 2.684233449477352) internal successors, (12326), 4593 states have internal predecessors, (12326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:02,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4594 states to 4594 states and 12326 transitions. [2021-05-21 17:29:02,779 INFO L78 Accepts]: Start accepts. Automaton has 4594 states and 12326 transitions. Word has length 114 [2021-05-21 17:29:02,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:02,779 INFO L482 AbstractCegarLoop]: Abstraction has 4594 states and 12326 transitions. [2021-05-21 17:29:02,779 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:02,779 INFO L276 IsEmpty]: Start isEmpty. Operand 4594 states and 12326 transitions. [2021-05-21 17:29:02,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:02,784 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:02,784 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:02,784 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-05-21 17:29:02,784 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:02,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:02,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1724172172, now seen corresponding path program 10 times [2021-05-21 17:29:02,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:02,785 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450459644] [2021-05-21 17:29:02,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:03,168 INFO 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 17:29:03,168 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:03,168 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450459644] [2021-05-21 17:29:03,168 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450459644] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:03,168 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:03,168 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:03,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459723442] [2021-05-21 17:29:03,169 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:03,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:03,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:03,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:03,169 INFO L87 Difference]: Start difference. First operand 4594 states and 12326 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:03,859 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:29:04,015 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:29:04,179 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:29:04,344 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:29:04,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:04,449 INFO L93 Difference]: Finished difference Result 7977 states and 21077 transitions. [2021-05-21 17:29:04,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:04,449 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:04,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:04,455 INFO L225 Difference]: With dead ends: 7977 [2021-05-21 17:29:04,455 INFO L226 Difference]: Without dead ends: 7977 [2021-05-21 17:29:04,455 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1262.7ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:04,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7977 states. [2021-05-21 17:29:04,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7977 to 4692. [2021-05-21 17:29:04,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4692 states, 4690 states have (on average 2.6714285714285713) internal successors, (12529), 4691 states have internal predecessors, (12529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:04,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4692 states to 4692 states and 12529 transitions. [2021-05-21 17:29:04,519 INFO L78 Accepts]: Start accepts. Automaton has 4692 states and 12529 transitions. Word has length 114 [2021-05-21 17:29:04,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:04,519 INFO L482 AbstractCegarLoop]: Abstraction has 4692 states and 12529 transitions. [2021-05-21 17:29:04,519 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:04,519 INFO L276 IsEmpty]: Start isEmpty. Operand 4692 states and 12529 transitions. [2021-05-21 17:29:04,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:04,525 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:04,525 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:04,525 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-05-21 17:29:04,525 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:04,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:04,525 INFO L82 PathProgramCache]: Analyzing trace with hash -9117170, now seen corresponding path program 11 times [2021-05-21 17:29:04,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:04,525 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89164134] [2021-05-21 17:29:04,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:04,853 INFO 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 17:29:04,853 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:04,853 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89164134] [2021-05-21 17:29:04,853 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89164134] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:04,853 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:04,853 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-05-21 17:29:04,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508620284] [2021-05-21 17:29:04,854 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-21 17:29:04,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:04,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-21 17:29:04,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-05-21 17:29:04,854 INFO L87 Difference]: Start difference. First operand 4692 states and 12529 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:05,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:05,892 INFO L93 Difference]: Finished difference Result 6412 states and 16826 transitions. [2021-05-21 17:29:05,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-21 17:29:05,892 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:05,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:05,898 INFO L225 Difference]: With dead ends: 6412 [2021-05-21 17:29:05,898 INFO L226 Difference]: Without dead ends: 6412 [2021-05-21 17:29:05,899 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 864.3ms TimeCoverageRelationStatistics Valid=329, Invalid=793, Unknown=0, NotChecked=0, Total=1122 [2021-05-21 17:29:05,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2021-05-21 17:29:05,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 4842. [2021-05-21 17:29:05,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4842 states, 4840 states have (on average 2.671694214876033) internal successors, (12931), 4841 states have internal predecessors, (12931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:05,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4842 states to 4842 states and 12931 transitions. [2021-05-21 17:29:05,968 INFO L78 Accepts]: Start accepts. Automaton has 4842 states and 12931 transitions. Word has length 114 [2021-05-21 17:29:05,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:05,969 INFO L482 AbstractCegarLoop]: Abstraction has 4842 states and 12931 transitions. [2021-05-21 17:29:05,969 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:05,969 INFO L276 IsEmpty]: Start isEmpty. Operand 4842 states and 12931 transitions. [2021-05-21 17:29:05,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:05,974 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:05,974 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] [2021-05-21 17:29:05,974 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-05-21 17:29:05,974 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:05,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:05,975 INFO L82 PathProgramCache]: Analyzing trace with hash -319151462, now seen corresponding path program 1 times [2021-05-21 17:29:05,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:05,975 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863005543] [2021-05-21 17:29:05,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:06,414 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 17:29:06,414 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:06,414 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863005543] [2021-05-21 17:29:06,414 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863005543] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:06,414 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:06,414 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-05-21 17:29:06,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819346104] [2021-05-21 17:29:06,415 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-21 17:29:06,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:06,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-21 17:29:06,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2021-05-21 17:29:06,416 INFO L87 Difference]: Start difference. First operand 4842 states and 12931 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:07,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:07,808 INFO L93 Difference]: Finished difference Result 5032 states and 13289 transitions. [2021-05-21 17:29:07,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-21 17:29:07,808 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:07,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:07,812 INFO L225 Difference]: With dead ends: 5032 [2021-05-21 17:29:07,812 INFO L226 Difference]: Without dead ends: 5032 [2021-05-21 17:29:07,813 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 1070.6ms TimeCoverageRelationStatistics Valid=534, Invalid=1536, Unknown=0, NotChecked=0, Total=2070 [2021-05-21 17:29:07,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5032 states. [2021-05-21 17:29:07,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5032 to 4966. [2021-05-21 17:29:07,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4966 states, 4964 states have (on average 2.6516921837228042) internal successors, (13163), 4965 states have internal predecessors, (13163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:07,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4966 states to 4966 states and 13163 transitions. [2021-05-21 17:29:07,864 INFO L78 Accepts]: Start accepts. Automaton has 4966 states and 13163 transitions. Word has length 114 [2021-05-21 17:29:07,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:07,864 INFO L482 AbstractCegarLoop]: Abstraction has 4966 states and 13163 transitions. [2021-05-21 17:29:07,864 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:07,864 INFO L276 IsEmpty]: Start isEmpty. Operand 4966 states and 13163 transitions. [2021-05-21 17:29:07,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:07,869 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:07,869 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:07,869 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-05-21 17:29:07,870 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:07,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:07,870 INFO L82 PathProgramCache]: Analyzing trace with hash 884172954, now seen corresponding path program 12 times [2021-05-21 17:29:07,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:07,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333513643] [2021-05-21 17:29:07,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:08,199 INFO 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 17:29:08,199 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:08,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333513643] [2021-05-21 17:29:08,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333513643] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:08,199 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:08,199 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-05-21 17:29:08,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115776020] [2021-05-21 17:29:08,201 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-21 17:29:08,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:08,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-21 17:29:08,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-05-21 17:29:08,202 INFO L87 Difference]: Start difference. First operand 4966 states and 13163 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:09,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:09,401 INFO L93 Difference]: Finished difference Result 7199 states and 18344 transitions. [2021-05-21 17:29:09,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-21 17:29:09,401 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:09,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:09,406 INFO L225 Difference]: With dead ends: 7199 [2021-05-21 17:29:09,407 INFO L226 Difference]: Without dead ends: 7199 [2021-05-21 17:29:09,407 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 960.3ms TimeCoverageRelationStatistics Valid=360, Invalid=900, Unknown=0, NotChecked=0, Total=1260 [2021-05-21 17:29:09,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7199 states. [2021-05-21 17:29:09,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7199 to 5066. [2021-05-21 17:29:09,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5066 states, 5064 states have (on average 2.646129541864139) internal successors, (13400), 5065 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 17:29:09,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5066 states to 5066 states and 13400 transitions. [2021-05-21 17:29:09,464 INFO L78 Accepts]: Start accepts. Automaton has 5066 states and 13400 transitions. Word has length 114 [2021-05-21 17:29:09,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:09,464 INFO L482 AbstractCegarLoop]: Abstraction has 5066 states and 13400 transitions. [2021-05-21 17:29:09,464 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:09,464 INFO L276 IsEmpty]: Start isEmpty. Operand 5066 states and 13400 transitions. [2021-05-21 17:29:09,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:09,468 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:09,468 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:09,468 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-05-21 17:29:09,468 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:09,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:09,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1591610796, now seen corresponding path program 13 times [2021-05-21 17:29:09,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:09,469 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033048756] [2021-05-21 17:29:09,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:09,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:29:09,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:09,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033048756] [2021-05-21 17:29:09,836 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033048756] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:09,836 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:09,836 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:09,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355047891] [2021-05-21 17:29:09,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:09,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:09,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:09,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:09,837 INFO L87 Difference]: Start difference. First operand 5066 states and 13400 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:10,642 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:29:10,812 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:29:10,991 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:29:11,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:11,092 INFO L93 Difference]: Finished difference Result 9064 states and 23840 transitions. [2021-05-21 17:29:11,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:11,093 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:11,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:11,100 INFO L225 Difference]: With dead ends: 9064 [2021-05-21 17:29:11,100 INFO L226 Difference]: Without dead ends: 9064 [2021-05-21 17:29:11,100 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1202.8ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:11,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9064 states. [2021-05-21 17:29:11,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9064 to 5066. [2021-05-21 17:29:11,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5066 states, 5064 states have (on average 2.646129541864139) internal successors, (13400), 5065 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 17:29:11,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5066 states to 5066 states and 13400 transitions. [2021-05-21 17:29:11,164 INFO L78 Accepts]: Start accepts. Automaton has 5066 states and 13400 transitions. Word has length 114 [2021-05-21 17:29:11,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:11,164 INFO L482 AbstractCegarLoop]: Abstraction has 5066 states and 13400 transitions. [2021-05-21 17:29:11,164 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:11,164 INFO L276 IsEmpty]: Start isEmpty. Operand 5066 states and 13400 transitions. [2021-05-21 17:29:11,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:11,168 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:11,168 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] [2021-05-21 17:29:11,168 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-05-21 17:29:11,168 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:11,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:11,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1931855154, now seen corresponding path program 14 times [2021-05-21 17:29:11,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:11,169 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631087741] [2021-05-21 17:29:11,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:11,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:11,572 INFO 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 17:29:11,573 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:11,573 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631087741] [2021-05-21 17:29:11,573 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631087741] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:11,573 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:11,573 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:11,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971467004] [2021-05-21 17:29:11,573 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:11,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:11,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:11,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:11,574 INFO L87 Difference]: Start difference. First operand 5066 states and 13400 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:12,382 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:29:12,552 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:29:12,746 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:29:12,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:12,845 INFO L93 Difference]: Finished difference Result 7143 states and 18710 transitions. [2021-05-21 17:29:12,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:12,845 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:12,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:12,850 INFO L225 Difference]: With dead ends: 7143 [2021-05-21 17:29:12,850 INFO L226 Difference]: Without dead ends: 7143 [2021-05-21 17:29:12,850 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1206.4ms TimeCoverageRelationStatistics Valid=291, Invalid=701, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:12,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7143 states. [2021-05-21 17:29:12,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7143 to 5066. [2021-05-21 17:29:12,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5066 states, 5064 states have (on average 2.646129541864139) internal successors, (13400), 5065 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 17:29:12,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5066 states to 5066 states and 13400 transitions. [2021-05-21 17:29:12,906 INFO L78 Accepts]: Start accepts. Automaton has 5066 states and 13400 transitions. Word has length 114 [2021-05-21 17:29:12,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:12,906 INFO L482 AbstractCegarLoop]: Abstraction has 5066 states and 13400 transitions. [2021-05-21 17:29:12,906 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:12,906 INFO L276 IsEmpty]: Start isEmpty. Operand 5066 states and 13400 transitions. [2021-05-21 17:29:12,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:12,910 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:12,910 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:12,910 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-05-21 17:29:12,910 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:12,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:12,911 INFO L82 PathProgramCache]: Analyzing trace with hash -2115845364, now seen corresponding path program 15 times [2021-05-21 17:29:12,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:12,911 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755153075] [2021-05-21 17:29:12,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:13,217 INFO 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 17:29:13,218 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:13,218 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755153075] [2021-05-21 17:29:13,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755153075] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:13,218 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:13,218 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:13,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869681293] [2021-05-21 17:29:13,218 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:13,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:13,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:13,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:13,220 INFO L87 Difference]: Start difference. First operand 5066 states and 13400 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:14,035 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:29:14,214 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:29:14,412 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:29:14,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:14,550 INFO L93 Difference]: Finished difference Result 11856 states and 31073 transitions. [2021-05-21 17:29:14,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:14,550 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:14,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:14,560 INFO L225 Difference]: With dead ends: 11856 [2021-05-21 17:29:14,560 INFO L226 Difference]: Without dead ends: 11856 [2021-05-21 17:29:14,560 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1183.5ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:14,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11856 states. [2021-05-21 17:29:14,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11856 to 5154. [2021-05-21 17:29:14,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5154 states, 5152 states have (on average 2.650621118012422) internal successors, (13656), 5153 states have internal predecessors, (13656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:14,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5154 states to 5154 states and 13656 transitions. [2021-05-21 17:29:14,638 INFO L78 Accepts]: Start accepts. Automaton has 5154 states and 13656 transitions. Word has length 114 [2021-05-21 17:29:14,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:14,638 INFO L482 AbstractCegarLoop]: Abstraction has 5154 states and 13656 transitions. [2021-05-21 17:29:14,638 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:14,638 INFO L276 IsEmpty]: Start isEmpty. Operand 5154 states and 13656 transitions. [2021-05-21 17:29:14,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:14,642 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:14,642 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] [2021-05-21 17:29:14,642 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-05-21 17:29:14,642 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:14,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:14,642 INFO L82 PathProgramCache]: Analyzing trace with hash -202608628, now seen corresponding path program 16 times [2021-05-21 17:29:14,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:14,642 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7507957] [2021-05-21 17:29:14,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:14,949 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 17:29:14,949 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:14,950 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7507957] [2021-05-21 17:29:14,950 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7507957] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:14,950 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:14,950 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:14,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380689984] [2021-05-21 17:29:14,950 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:14,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:14,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:14,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:14,951 INFO L87 Difference]: Start difference. First operand 5154 states and 13656 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:15,795 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:29:15,948 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:29:16,121 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:29:16,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:16,248 INFO L93 Difference]: Finished difference Result 14480 states and 37796 transitions. [2021-05-21 17:29:16,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:16,249 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:16,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:16,261 INFO L225 Difference]: With dead ends: 14480 [2021-05-21 17:29:16,261 INFO L226 Difference]: Without dead ends: 14480 [2021-05-21 17:29:16,261 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1183.9ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:16,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14480 states. [2021-05-21 17:29:16,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14480 to 5170. [2021-05-21 17:29:16,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5170 states, 5168 states have (on average 2.651315789473684) internal successors, (13702), 5169 states have internal predecessors, (13702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:16,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5170 states to 5170 states and 13702 transitions. [2021-05-21 17:29:16,351 INFO L78 Accepts]: Start accepts. Automaton has 5170 states and 13702 transitions. Word has length 114 [2021-05-21 17:29:16,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:16,352 INFO L482 AbstractCegarLoop]: Abstraction has 5170 states and 13702 transitions. [2021-05-21 17:29:16,352 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:16,352 INFO L276 IsEmpty]: Start isEmpty. Operand 5170 states and 13702 transitions. [2021-05-21 17:29:16,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:16,355 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:16,355 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:16,355 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-05-21 17:29:16,356 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:16,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:16,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1932865994, now seen corresponding path program 17 times [2021-05-21 17:29:16,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:16,356 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561923467] [2021-05-21 17:29:16,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:16,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:29:16,666 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:16,666 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561923467] [2021-05-21 17:29:16,666 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561923467] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:16,666 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:16,666 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:16,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414592117] [2021-05-21 17:29:16,666 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:16,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:16,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:16,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:16,667 INFO L87 Difference]: Start difference. First operand 5170 states and 13702 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:17,239 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-05-21 17:29:17,508 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:29:17,668 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:29:17,836 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:29:17,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:17,949 INFO L93 Difference]: Finished difference Result 12760 states and 33084 transitions. [2021-05-21 17:29:17,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:17,950 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:17,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:17,960 INFO L225 Difference]: With dead ends: 12760 [2021-05-21 17:29:17,960 INFO L226 Difference]: Without dead ends: 12760 [2021-05-21 17:29:17,960 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1217.3ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:17,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12760 states. [2021-05-21 17:29:18,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12760 to 5142. [2021-05-21 17:29:18,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5142 states, 5140 states have (on average 2.646303501945525) internal successors, (13602), 5141 states have internal predecessors, (13602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:18,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5142 states to 5142 states and 13602 transitions. [2021-05-21 17:29:18,037 INFO L78 Accepts]: Start accepts. Automaton has 5142 states and 13602 transitions. Word has length 114 [2021-05-21 17:29:18,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:18,038 INFO L482 AbstractCegarLoop]: Abstraction has 5142 states and 13602 transitions. [2021-05-21 17:29:18,038 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:18,038 INFO L276 IsEmpty]: Start isEmpty. Operand 5142 states and 13602 transitions. [2021-05-21 17:29:18,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:18,042 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:18,042 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:18,042 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-05-21 17:29:18,042 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:18,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:18,042 INFO L82 PathProgramCache]: Analyzing trace with hash 119137996, now seen corresponding path program 18 times [2021-05-21 17:29:18,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:18,043 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294403876] [2021-05-21 17:29:18,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:18,332 INFO 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 17:29:18,333 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:18,333 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294403876] [2021-05-21 17:29:18,333 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294403876] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:18,333 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:18,333 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:18,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031143366] [2021-05-21 17:29:18,333 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:18,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:18,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:18,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:18,334 INFO L87 Difference]: Start difference. First operand 5142 states and 13602 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:19,024 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:29:19,163 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:29:19,315 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:29:19,485 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:29:19,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:19,619 INFO L93 Difference]: Finished difference Result 11468 states and 29977 transitions. [2021-05-21 17:29:19,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:19,619 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:19,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:19,628 INFO L225 Difference]: With dead ends: 11468 [2021-05-21 17:29:19,628 INFO L226 Difference]: Without dead ends: 11468 [2021-05-21 17:29:19,629 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1186.5ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:19,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11468 states. [2021-05-21 17:29:19,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11468 to 5172. [2021-05-21 17:29:19,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5172 states, 5170 states have (on average 2.6477756286266922) internal successors, (13689), 5171 states have internal predecessors, (13689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:19,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5172 states to 5172 states and 13689 transitions. [2021-05-21 17:29:19,703 INFO L78 Accepts]: Start accepts. Automaton has 5172 states and 13689 transitions. Word has length 114 [2021-05-21 17:29:19,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:19,703 INFO L482 AbstractCegarLoop]: Abstraction has 5172 states and 13689 transitions. [2021-05-21 17:29:19,703 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:19,703 INFO L276 IsEmpty]: Start isEmpty. Operand 5172 states and 13689 transitions. [2021-05-21 17:29:19,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:19,707 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:19,707 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:19,707 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-05-21 17:29:19,707 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:19,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:19,707 INFO L82 PathProgramCache]: Analyzing trace with hash -2040354678, now seen corresponding path program 19 times [2021-05-21 17:29:19,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:19,708 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152988239] [2021-05-21 17:29:19,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:20,007 INFO 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 17:29:20,007 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:20,007 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152988239] [2021-05-21 17:29:20,007 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152988239] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:20,007 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:20,007 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:20,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103276788] [2021-05-21 17:29:20,008 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:20,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:20,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:20,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:20,008 INFO L87 Difference]: Start difference. First operand 5172 states and 13689 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:20,840 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:29:21,014 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:29:21,182 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:29:21,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:21,308 INFO L93 Difference]: Finished difference Result 12314 states and 31837 transitions. [2021-05-21 17:29:21,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:21,309 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:21,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:21,319 INFO L225 Difference]: With dead ends: 12314 [2021-05-21 17:29:21,319 INFO L226 Difference]: Without dead ends: 12314 [2021-05-21 17:29:21,319 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1197.1ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:21,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12314 states. [2021-05-21 17:29:21,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12314 to 5156. [2021-05-21 17:29:21,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5156 states, 5154 states have (on average 2.647070236709352) internal successors, (13643), 5155 states have internal predecessors, (13643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:21,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5156 states to 5156 states and 13643 transitions. [2021-05-21 17:29:21,395 INFO L78 Accepts]: Start accepts. Automaton has 5156 states and 13643 transitions. Word has length 114 [2021-05-21 17:29:21,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:21,395 INFO L482 AbstractCegarLoop]: Abstraction has 5156 states and 13643 transitions. [2021-05-21 17:29:21,395 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:21,395 INFO L276 IsEmpty]: Start isEmpty. Operand 5156 states and 13643 transitions. [2021-05-21 17:29:21,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:21,399 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:21,399 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:21,399 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-05-21 17:29:21,399 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:21,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:21,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1242491218, now seen corresponding path program 20 times [2021-05-21 17:29:21,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:21,399 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256811799] [2021-05-21 17:29:21,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:21,704 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 17:29:21,705 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:21,705 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256811799] [2021-05-21 17:29:21,705 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256811799] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:21,705 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:21,705 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:21,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083958525] [2021-05-21 17:29:21,705 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:21,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:21,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:21,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:21,706 INFO L87 Difference]: Start difference. First operand 5156 states and 13643 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:22,554 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:29:22,715 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:29:22,895 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:29:23,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:23,013 INFO L93 Difference]: Finished difference Result 11614 states and 30208 transitions. [2021-05-21 17:29:23,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:23,013 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:23,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:23,023 INFO L225 Difference]: With dead ends: 11614 [2021-05-21 17:29:23,023 INFO L226 Difference]: Without dead ends: 11614 [2021-05-21 17:29:23,024 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1203.6ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:23,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11614 states. [2021-05-21 17:29:23,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11614 to 5170. [2021-05-21 17:29:23,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5170 states, 5168 states have (on average 2.6478328173374615) internal successors, (13684), 5169 states have internal predecessors, (13684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:23,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5170 states to 5170 states and 13684 transitions. [2021-05-21 17:29:23,101 INFO L78 Accepts]: Start accepts. Automaton has 5170 states and 13684 transitions. Word has length 114 [2021-05-21 17:29:23,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:23,101 INFO L482 AbstractCegarLoop]: Abstraction has 5170 states and 13684 transitions. [2021-05-21 17:29:23,101 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:23,102 INFO L276 IsEmpty]: Start isEmpty. Operand 5170 states and 13684 transitions. [2021-05-21 17:29:23,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:23,105 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:23,105 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:23,105 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-05-21 17:29:23,105 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:23,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:23,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1491038198, now seen corresponding path program 21 times [2021-05-21 17:29:23,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:23,106 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79704383] [2021-05-21 17:29:23,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:23,406 INFO 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 17:29:23,407 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:23,407 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79704383] [2021-05-21 17:29:23,407 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79704383] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:23,407 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:23,407 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:23,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368860044] [2021-05-21 17:29:23,407 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:23,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:23,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:23,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:23,408 INFO L87 Difference]: Start difference. First operand 5170 states and 13684 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:24,215 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:29:24,366 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:29:24,538 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:29:24,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:24,655 INFO L93 Difference]: Finished difference Result 8872 states and 23296 transitions. [2021-05-21 17:29:24,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:24,655 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:24,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:24,662 INFO L225 Difference]: With dead ends: 8872 [2021-05-21 17:29:24,662 INFO L226 Difference]: Without dead ends: 8872 [2021-05-21 17:29:24,662 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1162.0ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:24,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8872 states. [2021-05-21 17:29:24,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8872 to 5254. [2021-05-21 17:29:24,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5254 states, 5252 states have (on average 2.6523229246001523) internal successors, (13930), 5253 states have internal predecessors, (13930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:24,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5254 states to 5254 states and 13930 transitions. [2021-05-21 17:29:24,742 INFO L78 Accepts]: Start accepts. Automaton has 5254 states and 13930 transitions. Word has length 114 [2021-05-21 17:29:24,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:24,742 INFO L482 AbstractCegarLoop]: Abstraction has 5254 states and 13930 transitions. [2021-05-21 17:29:24,742 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:24,742 INFO L276 IsEmpty]: Start isEmpty. Operand 5254 states and 13930 transitions. [2021-05-21 17:29:24,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:24,746 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:24,746 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:24,746 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-05-21 17:29:24,746 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:24,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:24,747 INFO L82 PathProgramCache]: Analyzing trace with hash -836185850, now seen corresponding path program 22 times [2021-05-21 17:29:24,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:24,747 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981971898] [2021-05-21 17:29:24,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:25,036 INFO 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 17:29:25,036 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:25,037 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981971898] [2021-05-21 17:29:25,037 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981971898] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:25,037 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:25,037 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-05-21 17:29:25,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634990597] [2021-05-21 17:29:25,037 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-21 17:29:25,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:25,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-21 17:29:25,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-05-21 17:29:25,038 INFO L87 Difference]: Start difference. First operand 5254 states and 13930 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:26,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:26,104 INFO L93 Difference]: Finished difference Result 6841 states and 17188 transitions. [2021-05-21 17:29:26,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-21 17:29:26,109 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:26,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:26,114 INFO L225 Difference]: With dead ends: 6841 [2021-05-21 17:29:26,115 INFO L226 Difference]: Without dead ends: 6841 [2021-05-21 17:29:26,115 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 906.1ms TimeCoverageRelationStatistics Valid=349, Invalid=911, Unknown=0, NotChecked=0, Total=1260 [2021-05-21 17:29:26,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6841 states. [2021-05-21 17:29:26,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6841 to 5264. [2021-05-21 17:29:26,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5264 states, 5262 states have (on average 2.653933865450399) internal successors, (13965), 5263 states have internal predecessors, (13965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:26,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5264 states to 5264 states and 13965 transitions. [2021-05-21 17:29:26,177 INFO L78 Accepts]: Start accepts. Automaton has 5264 states and 13965 transitions. Word has length 114 [2021-05-21 17:29:26,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:26,177 INFO L482 AbstractCegarLoop]: Abstraction has 5264 states and 13965 transitions. [2021-05-21 17:29:26,177 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:26,177 INFO L276 IsEmpty]: Start isEmpty. Operand 5264 states and 13965 transitions. [2021-05-21 17:29:26,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:26,181 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:26,181 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:26,182 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-05-21 17:29:26,182 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:26,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:26,182 INFO L82 PathProgramCache]: Analyzing trace with hash 2084443694, now seen corresponding path program 23 times [2021-05-21 17:29:26,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:26,182 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581656402] [2021-05-21 17:29:26,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:26,507 INFO 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 17:29:26,507 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:26,507 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581656402] [2021-05-21 17:29:26,508 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581656402] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:26,508 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:26,508 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:26,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466375579] [2021-05-21 17:29:26,508 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:26,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:26,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:26,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:26,509 INFO L87 Difference]: Start difference. First operand 5264 states and 13965 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:27,314 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:29:27,479 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:29:27,651 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:29:27,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:27,779 INFO L93 Difference]: Finished difference Result 14355 states and 37756 transitions. [2021-05-21 17:29:27,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:27,780 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:27,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:27,792 INFO L225 Difference]: With dead ends: 14355 [2021-05-21 17:29:27,792 INFO L226 Difference]: Without dead ends: 14355 [2021-05-21 17:29:27,793 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1184.5ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:27,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14355 states. [2021-05-21 17:29:27,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14355 to 5306. [2021-05-21 17:29:27,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5306 states, 5304 states have (on average 2.6561085972850678) internal successors, (14088), 5305 states have internal predecessors, (14088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:27,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5306 states to 5306 states and 14088 transitions. [2021-05-21 17:29:27,880 INFO L78 Accepts]: Start accepts. Automaton has 5306 states and 14088 transitions. Word has length 114 [2021-05-21 17:29:27,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:27,880 INFO L482 AbstractCegarLoop]: Abstraction has 5306 states and 14088 transitions. [2021-05-21 17:29:27,880 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:27,881 INFO L276 IsEmpty]: Start isEmpty. Operand 5306 states and 14088 transitions. [2021-05-21 17:29:27,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:27,884 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:27,884 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:27,884 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-05-21 17:29:27,884 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:27,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:27,885 INFO L82 PathProgramCache]: Analyzing trace with hash -297286866, now seen corresponding path program 24 times [2021-05-21 17:29:27,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:27,885 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271683335] [2021-05-21 17:29:27,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:28,177 INFO 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 17:29:28,177 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:28,177 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271683335] [2021-05-21 17:29:28,177 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271683335] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:28,177 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:28,177 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:28,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823491116] [2021-05-21 17:29:28,178 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:28,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:28,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:28,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:28,178 INFO L87 Difference]: Start difference. First operand 5306 states and 14088 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:28,993 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:29:29,143 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:29:29,313 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:29:29,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:29,441 INFO L93 Difference]: Finished difference Result 14443 states and 37922 transitions. [2021-05-21 17:29:29,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:29,442 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:29,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:29,453 INFO L225 Difference]: With dead ends: 14443 [2021-05-21 17:29:29,453 INFO L226 Difference]: Without dead ends: 14443 [2021-05-21 17:29:29,454 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1167.2ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:29,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14443 states. [2021-05-21 17:29:29,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14443 to 5320. [2021-05-21 17:29:29,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5320 states, 5318 states have (on average 2.656825874388868) internal successors, (14129), 5319 states have internal predecessors, (14129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:29,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5320 states to 5320 states and 14129 transitions. [2021-05-21 17:29:29,542 INFO L78 Accepts]: Start accepts. Automaton has 5320 states and 14129 transitions. Word has length 114 [2021-05-21 17:29:29,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:29,542 INFO L482 AbstractCegarLoop]: Abstraction has 5320 states and 14129 transitions. [2021-05-21 17:29:29,542 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:29,542 INFO L276 IsEmpty]: Start isEmpty. Operand 5320 states and 14129 transitions. [2021-05-21 17:29:29,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:29,546 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:29,546 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:29,546 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-05-21 17:29:29,546 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:29,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:29,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1838187756, now seen corresponding path program 25 times [2021-05-21 17:29:29,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:29,546 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265744443] [2021-05-21 17:29:29,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:29,893 INFO 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 17:29:29,893 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:29,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265744443] [2021-05-21 17:29:29,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265744443] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:29,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:29,893 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:29,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028018134] [2021-05-21 17:29:29,894 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:29,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:29,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:29,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:29,894 INFO L87 Difference]: Start difference. First operand 5320 states and 14129 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:30,708 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:29:30,873 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:29:31,042 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:29:31,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:31,175 INFO L93 Difference]: Finished difference Result 13859 states and 36040 transitions. [2021-05-21 17:29:31,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:31,175 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:31,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:31,186 INFO L225 Difference]: With dead ends: 13859 [2021-05-21 17:29:31,186 INFO L226 Difference]: Without dead ends: 13859 [2021-05-21 17:29:31,186 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1186.3ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:31,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13859 states. [2021-05-21 17:29:31,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13859 to 5278. [2021-05-21 17:29:31,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5278 states, 5276 states have (on average 2.6546626231993935) internal successors, (14006), 5277 states have internal predecessors, (14006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:31,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5278 states to 5278 states and 14006 transitions. [2021-05-21 17:29:31,270 INFO L78 Accepts]: Start accepts. Automaton has 5278 states and 14006 transitions. Word has length 114 [2021-05-21 17:29:31,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:31,270 INFO L482 AbstractCegarLoop]: Abstraction has 5278 states and 14006 transitions. [2021-05-21 17:29:31,270 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:31,270 INFO L276 IsEmpty]: Start isEmpty. Operand 5278 states and 14006 transitions. [2021-05-21 17:29:31,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:31,274 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:31,274 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:31,274 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-05-21 17:29:31,274 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:31,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:31,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1705626380, now seen corresponding path program 26 times [2021-05-21 17:29:31,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:31,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967821304] [2021-05-21 17:29:31,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:31,582 INFO 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 17:29:31,582 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:31,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967821304] [2021-05-21 17:29:31,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967821304] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:31,583 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:31,583 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:31,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386456275] [2021-05-21 17:29:31,583 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:31,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:31,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:31,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:31,583 INFO L87 Difference]: Start difference. First operand 5278 states and 14006 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:32,382 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:29:32,550 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:29:32,722 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:29:32,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:32,830 INFO L93 Difference]: Finished difference Result 10401 states and 27226 transitions. [2021-05-21 17:29:32,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:32,831 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:32,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:32,839 INFO L225 Difference]: With dead ends: 10401 [2021-05-21 17:29:32,839 INFO L226 Difference]: Without dead ends: 10401 [2021-05-21 17:29:32,839 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1151.4ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:32,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10401 states. [2021-05-21 17:29:32,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10401 to 5264. [2021-05-21 17:29:32,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5264 states, 5262 states have (on average 2.653933865450399) internal successors, (13965), 5263 states have internal predecessors, (13965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:32,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5264 states to 5264 states and 13965 transitions. [2021-05-21 17:29:32,909 INFO L78 Accepts]: Start accepts. Automaton has 5264 states and 13965 transitions. Word has length 114 [2021-05-21 17:29:32,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:32,909 INFO L482 AbstractCegarLoop]: Abstraction has 5264 states and 13965 transitions. [2021-05-21 17:29:32,909 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:32,909 INFO L276 IsEmpty]: Start isEmpty. Operand 5264 states and 13965 transitions. [2021-05-21 17:29:32,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:32,913 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:32,913 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] [2021-05-21 17:29:32,913 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-05-21 17:29:32,913 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:32,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:32,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1678541386, now seen corresponding path program 27 times [2021-05-21 17:29:32,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:32,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059697926] [2021-05-21 17:29:32,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:33,221 INFO 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 17:29:33,221 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:33,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059697926] [2021-05-21 17:29:33,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059697926] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:33,221 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:33,221 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:33,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896893140] [2021-05-21 17:29:33,222 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:33,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:33,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:33,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:33,222 INFO L87 Difference]: Start difference. First operand 5264 states and 13965 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:34,034 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:29:34,206 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:29:34,381 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:29:34,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:34,518 INFO L93 Difference]: Finished difference Result 12678 states and 33180 transitions. [2021-05-21 17:29:34,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:34,518 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:34,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:34,529 INFO L225 Difference]: With dead ends: 12678 [2021-05-21 17:29:34,529 INFO L226 Difference]: Without dead ends: 12678 [2021-05-21 17:29:34,529 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1174.0ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:34,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12678 states. [2021-05-21 17:29:34,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12678 to 5320. [2021-05-21 17:29:34,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5320 states, 5318 states have (on average 2.656825874388868) internal successors, (14129), 5319 states have internal predecessors, (14129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:34,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5320 states to 5320 states and 14129 transitions. [2021-05-21 17:29:34,609 INFO L78 Accepts]: Start accepts. Automaton has 5320 states and 14129 transitions. Word has length 114 [2021-05-21 17:29:34,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:34,609 INFO L482 AbstractCegarLoop]: Abstraction has 5320 states and 14129 transitions. [2021-05-21 17:29:34,609 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:34,609 INFO L276 IsEmpty]: Start isEmpty. Operand 5320 states and 14129 transitions. [2021-05-21 17:29:34,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:34,613 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:34,613 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:34,613 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-05-21 17:29:34,613 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:34,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:34,613 INFO L82 PathProgramCache]: Analyzing trace with hash -703189174, now seen corresponding path program 28 times [2021-05-21 17:29:34,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:34,614 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707700719] [2021-05-21 17:29:34,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:34,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:29:34,976 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:34,976 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707700719] [2021-05-21 17:29:34,977 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707700719] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:34,977 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:34,977 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:34,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020919903] [2021-05-21 17:29:34,977 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:34,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:34,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:34,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:34,977 INFO L87 Difference]: Start difference. First operand 5320 states and 14129 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:35,812 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:29:35,966 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:29:36,140 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:29:36,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:36,274 INFO L93 Difference]: Finished difference Result 12766 states and 33346 transitions. [2021-05-21 17:29:36,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:36,274 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:36,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:36,285 INFO L225 Difference]: With dead ends: 12766 [2021-05-21 17:29:36,285 INFO L226 Difference]: Without dead ends: 12766 [2021-05-21 17:29:36,285 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1207.3ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:36,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12766 states. [2021-05-21 17:29:36,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12766 to 5334. [2021-05-21 17:29:36,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5334 states, 5332 states have (on average 2.6575393848462117) internal successors, (14170), 5333 states have internal predecessors, (14170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:36,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5334 states to 5334 states and 14170 transitions. [2021-05-21 17:29:36,363 INFO L78 Accepts]: Start accepts. Automaton has 5334 states and 14170 transitions. Word has length 114 [2021-05-21 17:29:36,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:36,363 INFO L482 AbstractCegarLoop]: Abstraction has 5334 states and 14170 transitions. [2021-05-21 17:29:36,363 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:36,363 INFO L276 IsEmpty]: Start isEmpty. Operand 5334 states and 14170 transitions. [2021-05-21 17:29:36,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:36,366 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:36,367 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] [2021-05-21 17:29:36,367 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-05-21 17:29:36,367 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:36,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:36,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1432285448, now seen corresponding path program 29 times [2021-05-21 17:29:36,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:36,367 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695149004] [2021-05-21 17:29:36,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:36,698 INFO 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 17:29:36,699 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:36,699 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695149004] [2021-05-21 17:29:36,699 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695149004] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:36,699 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:36,699 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:36,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166044314] [2021-05-21 17:29:36,699 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:36,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:36,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:36,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:36,700 INFO L87 Difference]: Start difference. First operand 5334 states and 14170 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:37,373 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:29:37,525 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:29:37,689 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:29:37,856 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:29:37,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:37,975 INFO L93 Difference]: Finished difference Result 12182 states and 31464 transitions. [2021-05-21 17:29:37,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:37,976 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:37,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:37,985 INFO L225 Difference]: With dead ends: 12182 [2021-05-21 17:29:37,985 INFO L226 Difference]: Without dead ends: 12182 [2021-05-21 17:29:37,986 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1216.1ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:38,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12182 states. [2021-05-21 17:29:38,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12182 to 5292. [2021-05-21 17:29:38,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5292 states, 5290 states have (on average 2.6553875236294897) internal successors, (14047), 5291 states have internal predecessors, (14047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:38,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5292 states to 5292 states and 14047 transitions. [2021-05-21 17:29:38,064 INFO L78 Accepts]: Start accepts. Automaton has 5292 states and 14047 transitions. Word has length 114 [2021-05-21 17:29:38,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:38,064 INFO L482 AbstractCegarLoop]: Abstraction has 5292 states and 14047 transitions. [2021-05-21 17:29:38,064 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:38,064 INFO L276 IsEmpty]: Start isEmpty. Operand 5292 states and 14047 transitions. [2021-05-21 17:29:38,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:38,068 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:38,068 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:38,068 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-05-21 17:29:38,068 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:38,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:38,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1299724072, now seen corresponding path program 30 times [2021-05-21 17:29:38,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:38,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702770630] [2021-05-21 17:29:38,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:38,401 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 17:29:38,401 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:38,401 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702770630] [2021-05-21 17:29:38,401 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702770630] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:38,401 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:38,401 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:38,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562642616] [2021-05-21 17:29:38,402 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:38,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:38,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:38,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:38,402 INFO L87 Difference]: Start difference. First operand 5292 states and 14047 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:39,200 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:29:39,373 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:29:39,550 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:29:39,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:39,674 INFO L93 Difference]: Finished difference Result 12234 states and 31730 transitions. [2021-05-21 17:29:39,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:39,674 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:39,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:39,683 INFO L225 Difference]: With dead ends: 12234 [2021-05-21 17:29:39,684 INFO L226 Difference]: Without dead ends: 12234 [2021-05-21 17:29:39,684 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1183.3ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:39,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12234 states. [2021-05-21 17:29:39,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12234 to 5278. [2021-05-21 17:29:39,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5278 states, 5276 states have (on average 2.6546626231993935) internal successors, (14006), 5277 states have internal predecessors, (14006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:39,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5278 states to 5278 states and 14006 transitions. [2021-05-21 17:29:39,759 INFO L78 Accepts]: Start accepts. Automaton has 5278 states and 14006 transitions. Word has length 114 [2021-05-21 17:29:39,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:39,759 INFO L482 AbstractCegarLoop]: Abstraction has 5278 states and 14006 transitions. [2021-05-21 17:29:39,759 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:39,759 INFO L276 IsEmpty]: Start isEmpty. Operand 5278 states and 14006 transitions. [2021-05-21 17:29:39,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:39,762 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:39,762 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] [2021-05-21 17:29:39,763 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-05-21 17:29:39,763 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:39,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:39,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1639968430, now seen corresponding path program 31 times [2021-05-21 17:29:39,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:39,763 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874115625] [2021-05-21 17:29:39,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:40,122 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 17:29:40,122 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:40,123 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874115625] [2021-05-21 17:29:40,123 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874115625] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:40,123 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:40,123 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:40,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062135372] [2021-05-21 17:29:40,123 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:40,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:40,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:40,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:40,124 INFO L87 Difference]: Start difference. First operand 5278 states and 14006 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:40,921 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:29:41,093 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:29:41,267 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:29:41,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:41,377 INFO L93 Difference]: Finished difference Result 8660 states and 22484 transitions. [2021-05-21 17:29:41,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:41,377 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:41,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:41,384 INFO L225 Difference]: With dead ends: 8660 [2021-05-21 17:29:41,384 INFO L226 Difference]: Without dead ends: 8660 [2021-05-21 17:29:41,384 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1176.4ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:41,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8660 states. [2021-05-21 17:29:41,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8660 to 5264. [2021-05-21 17:29:41,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5264 states, 5262 states have (on average 2.653933865450399) internal successors, (13965), 5263 states have internal predecessors, (13965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:41,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5264 states to 5264 states and 13965 transitions. [2021-05-21 17:29:41,445 INFO L78 Accepts]: Start accepts. Automaton has 5264 states and 13965 transitions. Word has length 114 [2021-05-21 17:29:41,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:41,445 INFO L482 AbstractCegarLoop]: Abstraction has 5264 states and 13965 transitions. [2021-05-21 17:29:41,446 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:41,446 INFO L276 IsEmpty]: Start isEmpty. Operand 5264 states and 13965 transitions. [2021-05-21 17:29:41,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:41,449 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:41,449 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:41,449 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-05-21 17:29:41,449 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:41,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:41,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1724788430, now seen corresponding path program 32 times [2021-05-21 17:29:41,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:41,450 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397032755] [2021-05-21 17:29:41,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:41,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:29:41,764 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:41,764 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397032755] [2021-05-21 17:29:41,764 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397032755] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:41,764 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:41,764 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:41,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241035150] [2021-05-21 17:29:41,764 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:41,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:41,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:41,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:41,765 INFO L87 Difference]: Start difference. First operand 5264 states and 13965 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:42,587 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:29:42,751 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:29:42,923 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:29:43,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:43,063 INFO L93 Difference]: Finished difference Result 18822 states and 49472 transitions. [2021-05-21 17:29:43,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:43,064 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:43,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:43,079 INFO L225 Difference]: With dead ends: 18822 [2021-05-21 17:29:43,079 INFO L226 Difference]: Without dead ends: 18822 [2021-05-21 17:29:43,080 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1160.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:43,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18822 states. [2021-05-21 17:29:43,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18822 to 5400. [2021-05-21 17:29:43,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5400 states, 5398 states have (on average 2.660059281215265) internal successors, (14359), 5399 states have internal predecessors, (14359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:43,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5400 states to 5400 states and 14359 transitions. [2021-05-21 17:29:43,187 INFO L78 Accepts]: Start accepts. Automaton has 5400 states and 14359 transitions. Word has length 114 [2021-05-21 17:29:43,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:43,187 INFO L482 AbstractCegarLoop]: Abstraction has 5400 states and 14359 transitions. [2021-05-21 17:29:43,187 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:43,187 INFO L276 IsEmpty]: Start isEmpty. Operand 5400 states and 14359 transitions. [2021-05-21 17:29:43,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:43,191 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:43,191 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:43,191 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-05-21 17:29:43,191 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:43,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:43,191 INFO L82 PathProgramCache]: Analyzing trace with hash -656942130, now seen corresponding path program 33 times [2021-05-21 17:29:43,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:43,191 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988324228] [2021-05-21 17:29:43,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:43,516 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 17:29:43,516 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:43,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988324228] [2021-05-21 17:29:43,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988324228] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:43,516 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:43,516 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:43,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430408996] [2021-05-21 17:29:43,516 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:43,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:43,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:43,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:43,517 INFO L87 Difference]: Start difference. First operand 5400 states and 14359 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:44,221 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:29:44,376 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:29:44,530 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:29:44,709 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:29:44,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:44,859 INFO L93 Difference]: Finished difference Result 21446 states and 56195 transitions. [2021-05-21 17:29:44,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:44,859 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:44,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:44,878 INFO L225 Difference]: With dead ends: 21446 [2021-05-21 17:29:44,878 INFO L226 Difference]: Without dead ends: 21446 [2021-05-21 17:29:44,879 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1194.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:44,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21446 states. [2021-05-21 17:29:45,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21446 to 5416. [2021-05-21 17:29:45,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5416 states, 5414 states have (on average 2.6606944957517547) internal successors, (14405), 5415 states have internal predecessors, (14405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:45,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5416 states to 5416 states and 14405 transitions. [2021-05-21 17:29:45,038 INFO L78 Accepts]: Start accepts. Automaton has 5416 states and 14405 transitions. Word has length 114 [2021-05-21 17:29:45,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:45,038 INFO L482 AbstractCegarLoop]: Abstraction has 5416 states and 14405 transitions. [2021-05-21 17:29:45,039 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:45,039 INFO L276 IsEmpty]: Start isEmpty. Operand 5416 states and 14405 transitions. [2021-05-21 17:29:45,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:45,042 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:45,042 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:45,042 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-05-21 17:29:45,042 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:45,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:45,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1478532492, now seen corresponding path program 34 times [2021-05-21 17:29:45,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:45,043 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32030640] [2021-05-21 17:29:45,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:45,360 INFO 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 17:29:45,361 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:45,361 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32030640] [2021-05-21 17:29:45,361 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32030640] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:45,361 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:45,361 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:45,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253179232] [2021-05-21 17:29:45,361 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:45,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:45,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:45,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:45,362 INFO L87 Difference]: Start difference. First operand 5416 states and 14405 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:46,031 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:29:46,182 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:29:46,348 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:29:46,521 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:29:46,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:46,655 INFO L93 Difference]: Finished difference Result 19726 states and 51483 transitions. [2021-05-21 17:29:46,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:46,655 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:46,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:46,672 INFO L225 Difference]: With dead ends: 19726 [2021-05-21 17:29:46,672 INFO L226 Difference]: Without dead ends: 19726 [2021-05-21 17:29:46,672 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1193.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:46,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19726 states. [2021-05-21 17:29:46,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19726 to 5388. [2021-05-21 17:29:46,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5388 states, 5386 states have (on average 2.655959896026736) internal successors, (14305), 5387 states have internal predecessors, (14305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:46,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5388 states to 5388 states and 14305 transitions. [2021-05-21 17:29:46,785 INFO L78 Accepts]: Start accepts. Automaton has 5388 states and 14305 transitions. Word has length 114 [2021-05-21 17:29:46,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:46,785 INFO L482 AbstractCegarLoop]: Abstraction has 5388 states and 14305 transitions. [2021-05-21 17:29:46,785 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:46,785 INFO L276 IsEmpty]: Start isEmpty. Operand 5388 states and 14305 transitions. [2021-05-21 17:29:46,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:46,789 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:46,789 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:46,789 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-05-21 17:29:46,789 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:46,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:46,789 INFO L82 PathProgramCache]: Analyzing trace with hash -335195506, now seen corresponding path program 35 times [2021-05-21 17:29:46,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:46,789 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453609143] [2021-05-21 17:29:46,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:47,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:29:47,083 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:47,083 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453609143] [2021-05-21 17:29:47,083 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453609143] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:47,083 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:47,083 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:47,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803610504] [2021-05-21 17:29:47,083 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:47,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:47,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:47,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:47,084 INFO L87 Difference]: Start difference. First operand 5388 states and 14305 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:47,774 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:29:47,913 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:29:48,066 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:29:48,239 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:29:48,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:48,374 INFO L93 Difference]: Finished difference Result 18926 states and 49630 transitions. [2021-05-21 17:29:48,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:48,375 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:48,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:48,392 INFO L225 Difference]: With dead ends: 18926 [2021-05-21 17:29:48,393 INFO L226 Difference]: Without dead ends: 18926 [2021-05-21 17:29:48,393 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1184.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:48,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18926 states. [2021-05-21 17:29:48,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18926 to 5420. [2021-05-21 17:29:48,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5420 states, 5418 states have (on average 2.6572535991140644) internal successors, (14397), 5419 states have internal predecessors, (14397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:48,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5420 states to 5420 states and 14397 transitions. [2021-05-21 17:29:48,510 INFO L78 Accepts]: Start accepts. Automaton has 5420 states and 14397 transitions. Word has length 114 [2021-05-21 17:29:48,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:48,510 INFO L482 AbstractCegarLoop]: Abstraction has 5420 states and 14397 transitions. [2021-05-21 17:29:48,510 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:48,510 INFO L276 IsEmpty]: Start isEmpty. Operand 5420 states and 14397 transitions. [2021-05-21 17:29:48,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:48,514 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:48,514 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:48,514 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-05-21 17:29:48,514 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:48,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:48,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1800279116, now seen corresponding path program 36 times [2021-05-21 17:29:48,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:48,515 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199859072] [2021-05-21 17:29:48,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:48,807 INFO 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 17:29:48,807 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:48,807 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199859072] [2021-05-21 17:29:48,807 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199859072] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:48,807 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:48,807 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:48,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538514353] [2021-05-21 17:29:48,808 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:48,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:48,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:48,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:48,808 INFO L87 Difference]: Start difference. First operand 5420 states and 14397 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:49,500 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:29:49,641 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:29:49,809 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:29:49,980 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:29:50,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:50,131 INFO L93 Difference]: Finished difference Result 19772 states and 51490 transitions. [2021-05-21 17:29:50,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:50,131 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:50,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:50,175 INFO L225 Difference]: With dead ends: 19772 [2021-05-21 17:29:50,176 INFO L226 Difference]: Without dead ends: 19772 [2021-05-21 17:29:50,176 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1183.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:50,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19772 states. [2021-05-21 17:29:50,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19772 to 5404. [2021-05-21 17:29:50,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5404 states, 5402 states have (on average 2.6566086634579786) internal successors, (14351), 5403 states have internal predecessors, (14351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:50,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5404 states to 5404 states and 14351 transitions. [2021-05-21 17:29:50,276 INFO L78 Accepts]: Start accepts. Automaton has 5404 states and 14351 transitions. Word has length 114 [2021-05-21 17:29:50,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:50,276 INFO L482 AbstractCegarLoop]: Abstraction has 5404 states and 14351 transitions. [2021-05-21 17:29:50,276 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:50,277 INFO L276 IsEmpty]: Start isEmpty. Operand 5404 states and 14351 transitions. [2021-05-21 17:29:50,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:50,280 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:50,280 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:50,280 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-05-21 17:29:50,281 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:50,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:50,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1696824720, now seen corresponding path program 37 times [2021-05-21 17:29:50,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:50,281 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002976643] [2021-05-21 17:29:50,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:50,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:50,558 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 17:29:50,558 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:50,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002976643] [2021-05-21 17:29:50,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002976643] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:50,559 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:50,559 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:50,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066136081] [2021-05-21 17:29:50,559 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:50,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:50,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:50,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:50,560 INFO L87 Difference]: Start difference. First operand 5404 states and 14351 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:51,258 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:29:51,401 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:29:51,563 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:29:51,738 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:29:51,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:51,885 INFO L93 Difference]: Finished difference Result 19072 states and 49861 transitions. [2021-05-21 17:29:51,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:51,885 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:51,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:51,902 INFO L225 Difference]: With dead ends: 19072 [2021-05-21 17:29:51,902 INFO L226 Difference]: Without dead ends: 19072 [2021-05-21 17:29:51,902 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1178.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:51,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19072 states. [2021-05-21 17:29:52,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19072 to 5420. [2021-05-21 17:29:52,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5420 states, 5418 states have (on average 2.6572535991140644) internal successors, (14397), 5419 states have internal predecessors, (14397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:52,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5420 states to 5420 states and 14397 transitions. [2021-05-21 17:29:52,014 INFO L78 Accepts]: Start accepts. Automaton has 5420 states and 14397 transitions. Word has length 114 [2021-05-21 17:29:52,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:52,014 INFO L482 AbstractCegarLoop]: Abstraction has 5420 states and 14397 transitions. [2021-05-21 17:29:52,014 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:52,014 INFO L276 IsEmpty]: Start isEmpty. Operand 5420 states and 14397 transitions. [2021-05-21 17:29:52,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:52,018 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:52,018 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, 1] [2021-05-21 17:29:52,018 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-05-21 17:29:52,018 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:52,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:52,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1945371700, now seen corresponding path program 38 times [2021-05-21 17:29:52,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:52,019 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983255413] [2021-05-21 17:29:52,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:52,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:52,291 INFO 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 17:29:52,291 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:52,291 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983255413] [2021-05-21 17:29:52,291 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983255413] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:52,291 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:52,291 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:52,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047333479] [2021-05-21 17:29:52,291 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:52,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:52,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:52,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:52,292 INFO L87 Difference]: Start difference. First operand 5420 states and 14397 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:52,996 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:29:53,140 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:29:53,310 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:29:53,488 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:29:53,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:53,621 INFO L93 Difference]: Finished difference Result 16330 states and 42949 transitions. [2021-05-21 17:29:53,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:53,622 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:53,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:53,636 INFO L225 Difference]: With dead ends: 16330 [2021-05-21 17:29:53,636 INFO L226 Difference]: Without dead ends: 16330 [2021-05-21 17:29:53,636 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1177.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:53,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16330 states. [2021-05-21 17:29:53,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16330 to 5376. [2021-05-21 17:29:53,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5376 states, 5374 states have (on average 2.654075176777075) internal successors, (14263), 5375 states have internal predecessors, (14263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:53,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5376 states to 5376 states and 14263 transitions. [2021-05-21 17:29:53,737 INFO L78 Accepts]: Start accepts. Automaton has 5376 states and 14263 transitions. Word has length 114 [2021-05-21 17:29:53,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:53,737 INFO L482 AbstractCegarLoop]: Abstraction has 5376 states and 14263 transitions. [2021-05-21 17:29:53,737 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:53,737 INFO L276 IsEmpty]: Start isEmpty. Operand 5376 states and 14263 transitions. [2021-05-21 17:29:53,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:53,740 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:53,741 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:53,741 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-05-21 17:29:53,741 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:53,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:53,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1630110192, now seen corresponding path program 39 times [2021-05-21 17:29:53,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:53,741 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407626670] [2021-05-21 17:29:53,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:53,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:54,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:29:54,043 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:54,043 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407626670] [2021-05-21 17:29:54,043 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407626670] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:54,043 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:54,044 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:54,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507951822] [2021-05-21 17:29:54,044 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:54,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:54,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:54,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:54,044 INFO L87 Difference]: Start difference. First operand 5376 states and 14263 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:54,847 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:29:55,015 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:29:55,206 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:29:55,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:55,343 INFO L93 Difference]: Finished difference Result 17522 states and 46341 transitions. [2021-05-21 17:29:55,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:55,343 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:55,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:55,358 INFO L225 Difference]: With dead ends: 17522 [2021-05-21 17:29:55,358 INFO L226 Difference]: Without dead ends: 17522 [2021-05-21 17:29:55,359 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1186.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:55,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17522 states. [2021-05-21 17:29:55,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17522 to 5424. [2021-05-21 17:29:55,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5424 states, 5422 states have (on average 2.656030984876429) internal successors, (14401), 5423 states have internal predecessors, (14401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:55,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5424 states to 5424 states and 14401 transitions. [2021-05-21 17:29:55,463 INFO L78 Accepts]: Start accepts. Automaton has 5424 states and 14401 transitions. Word has length 114 [2021-05-21 17:29:55,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:55,463 INFO L482 AbstractCegarLoop]: Abstraction has 5424 states and 14401 transitions. [2021-05-21 17:29:55,463 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:55,463 INFO L276 IsEmpty]: Start isEmpty. Operand 5424 states and 14401 transitions. [2021-05-21 17:29:55,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:55,467 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:55,467 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] [2021-05-21 17:29:55,467 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-05-21 17:29:55,467 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:55,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:55,468 INFO L82 PathProgramCache]: Analyzing trace with hash -751620368, now seen corresponding path program 40 times [2021-05-21 17:29:55,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:55,468 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012938234] [2021-05-21 17:29:55,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:55,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:55,774 INFO 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 17:29:55,774 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:55,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012938234] [2021-05-21 17:29:55,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012938234] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:55,774 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:55,775 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:55,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611036831] [2021-05-21 17:29:55,775 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:55,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:55,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:55,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:55,775 INFO L87 Difference]: Start difference. First operand 5424 states and 14401 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:56,460 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:29:56,620 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:29:56,776 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:29:56,952 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:29:57,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:57,095 INFO L93 Difference]: Finished difference Result 17598 states and 46477 transitions. [2021-05-21 17:29:57,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:57,095 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:57,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:57,111 INFO L225 Difference]: With dead ends: 17598 [2021-05-21 17:29:57,111 INFO L226 Difference]: Without dead ends: 17598 [2021-05-21 17:29:57,111 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1178.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:57,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17598 states. [2021-05-21 17:29:57,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17598 to 5440. [2021-05-21 17:29:57,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5438 states have (on average 2.656675248253034) internal successors, (14447), 5439 states have internal predecessors, (14447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:57,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14447 transitions. [2021-05-21 17:29:57,221 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14447 transitions. Word has length 114 [2021-05-21 17:29:57,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:57,222 INFO L482 AbstractCegarLoop]: Abstraction has 5440 states and 14447 transitions. [2021-05-21 17:29:57,222 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:57,222 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14447 transitions. [2021-05-21 17:29:57,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:57,226 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:57,226 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:57,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-05-21 17:29:57,226 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:57,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:57,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1383854254, now seen corresponding path program 41 times [2021-05-21 17:29:57,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:57,226 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29338655] [2021-05-21 17:29:57,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:57,556 INFO 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 17:29:57,556 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:57,556 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29338655] [2021-05-21 17:29:57,556 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29338655] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:57,556 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:57,557 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:57,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905339240] [2021-05-21 17:29:57,557 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:57,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:57,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:57,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:57,557 INFO L87 Difference]: Start difference. First operand 5440 states and 14447 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:58,405 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:29:58,575 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:29:58,748 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:29:58,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:29:58,890 INFO L93 Difference]: Finished difference Result 16982 states and 44503 transitions. [2021-05-21 17:29:58,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:29:58,891 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:29:58,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:29:58,905 INFO L225 Difference]: With dead ends: 16982 [2021-05-21 17:29:58,906 INFO L226 Difference]: Without dead ends: 16982 [2021-05-21 17:29:58,906 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1218.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:29:58,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16982 states. [2021-05-21 17:29:58,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16982 to 5392. [2021-05-21 17:29:58,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5392 states, 5390 states have (on average 2.6547309833024118) internal successors, (14309), 5391 states have internal predecessors, (14309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:59,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5392 states to 5392 states and 14309 transitions. [2021-05-21 17:29:59,004 INFO L78 Accepts]: Start accepts. Automaton has 5392 states and 14309 transitions. Word has length 114 [2021-05-21 17:29:59,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:29:59,004 INFO L482 AbstractCegarLoop]: Abstraction has 5392 states and 14309 transitions. [2021-05-21 17:29:59,004 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:29:59,004 INFO L276 IsEmpty]: Start isEmpty. Operand 5392 states and 14309 transitions. [2021-05-21 17:29:59,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:29:59,008 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:29:59,008 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:59,008 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-05-21 17:29:59,008 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:29:59,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:29:59,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1251292878, now seen corresponding path program 42 times [2021-05-21 17:29:59,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:29:59,009 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194768105] [2021-05-21 17:29:59,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:29:59,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:29:59,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:29:59,309 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:29:59,309 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194768105] [2021-05-21 17:29:59,309 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194768105] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:29:59,309 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:29:59,309 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:29:59,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93573444] [2021-05-21 17:29:59,310 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:29:59,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:29:59,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:29:59,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:29:59,310 INFO L87 Difference]: Start difference. First operand 5392 states and 14309 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:00,125 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:30:00,317 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:30:00,489 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:30:00,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:00,617 INFO L93 Difference]: Finished difference Result 13742 states and 36256 transitions. [2021-05-21 17:30:00,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:00,617 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:00,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:00,628 INFO L225 Difference]: With dead ends: 13742 [2021-05-21 17:30:00,628 INFO L226 Difference]: Without dead ends: 13742 [2021-05-21 17:30:00,629 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1181.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:00,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13742 states. [2021-05-21 17:30:00,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13742 to 5364. [2021-05-21 17:30:00,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5364 states, 5362 states have (on average 2.653301007086908) internal successors, (14227), 5363 states have internal predecessors, (14227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:00,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5364 states to 5364 states and 14227 transitions. [2021-05-21 17:30:00,712 INFO L78 Accepts]: Start accepts. Automaton has 5364 states and 14227 transitions. Word has length 114 [2021-05-21 17:30:00,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:00,712 INFO L482 AbstractCegarLoop]: Abstraction has 5364 states and 14227 transitions. [2021-05-21 17:30:00,712 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:00,712 INFO L276 IsEmpty]: Start isEmpty. Operand 5364 states and 14227 transitions. [2021-05-21 17:30:00,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:00,715 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:00,715 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:00,715 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-05-21 17:30:00,716 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:00,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:00,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1732158226, now seen corresponding path program 43 times [2021-05-21 17:30:00,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:00,716 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367026089] [2021-05-21 17:30:00,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:01,007 INFO 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 17:30:01,007 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:01,007 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367026089] [2021-05-21 17:30:01,007 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367026089] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:01,007 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:01,007 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:01,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735729930] [2021-05-21 17:30:01,007 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:01,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:01,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:01,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:01,008 INFO L87 Difference]: Start difference. First operand 5364 states and 14227 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:01,717 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:30:01,856 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:30:02,036 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:30:02,249 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:30:02,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:02,371 INFO L93 Difference]: Finished difference Result 12756 states and 33593 transitions. [2021-05-21 17:30:02,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:02,371 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:02,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:02,381 INFO L225 Difference]: With dead ends: 12756 [2021-05-21 17:30:02,381 INFO L226 Difference]: Without dead ends: 12756 [2021-05-21 17:30:02,382 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1240.3ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:02,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12756 states. [2021-05-21 17:30:02,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12756 to 5484. [2021-05-21 17:30:02,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5482 states have (on average 2.6587012039401676) internal successors, (14575), 5483 states have internal predecessors, (14575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:02,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 14575 transitions. [2021-05-21 17:30:02,468 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 14575 transitions. Word has length 114 [2021-05-21 17:30:02,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:02,468 INFO L482 AbstractCegarLoop]: Abstraction has 5484 states and 14575 transitions. [2021-05-21 17:30:02,469 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:02,469 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 14575 transitions. [2021-05-21 17:30:02,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:02,472 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:02,472 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:02,473 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-05-21 17:30:02,473 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:02,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:02,473 INFO L82 PathProgramCache]: Analyzing trace with hash 181078510, now seen corresponding path program 44 times [2021-05-21 17:30:02,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:02,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094609572] [2021-05-21 17:30:02,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:02,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:02,788 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 17:30:02,788 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:02,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094609572] [2021-05-21 17:30:02,789 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094609572] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:02,789 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:02,789 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:02,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48241249] [2021-05-21 17:30:02,789 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:02,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:02,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:02,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:02,790 INFO L87 Difference]: Start difference. First operand 5484 states and 14575 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:03,463 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:30:03,616 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:03,771 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:30:03,948 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:30:04,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:04,079 INFO L93 Difference]: Finished difference Result 15380 states and 40316 transitions. [2021-05-21 17:30:04,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:04,079 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:04,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:04,095 INFO L225 Difference]: With dead ends: 15380 [2021-05-21 17:30:04,095 INFO L226 Difference]: Without dead ends: 15380 [2021-05-21 17:30:04,095 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1203.3ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:04,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15380 states. [2021-05-21 17:30:04,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15380 to 5500. [2021-05-21 17:30:04,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5500 states, 5498 states have (on average 2.659330665696617) internal successors, (14621), 5499 states have internal predecessors, (14621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:04,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5500 states to 5500 states and 14621 transitions. [2021-05-21 17:30:04,204 INFO L78 Accepts]: Start accepts. Automaton has 5500 states and 14621 transitions. Word has length 114 [2021-05-21 17:30:04,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:04,204 INFO L482 AbstractCegarLoop]: Abstraction has 5500 states and 14621 transitions. [2021-05-21 17:30:04,205 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:04,205 INFO L276 IsEmpty]: Start isEmpty. Operand 5500 states and 14621 transitions. [2021-05-21 17:30:04,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:04,209 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:04,210 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, 1] [2021-05-21 17:30:04,210 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-05-21 17:30:04,210 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:04,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:04,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1978414164, now seen corresponding path program 45 times [2021-05-21 17:30:04,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:04,210 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043323444] [2021-05-21 17:30:04,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:04,509 INFO 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 17:30:04,510 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:04,510 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043323444] [2021-05-21 17:30:04,510 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043323444] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:04,510 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:04,510 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:04,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324262884] [2021-05-21 17:30:04,510 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:04,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:04,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:04,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:04,511 INFO L87 Difference]: Start difference. First operand 5500 states and 14621 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:05,215 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:30:05,369 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:05,552 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:30:05,725 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:30:05,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:05,855 INFO L93 Difference]: Finished difference Result 13660 states and 35604 transitions. [2021-05-21 17:30:05,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:05,856 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:05,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:05,867 INFO L225 Difference]: With dead ends: 13660 [2021-05-21 17:30:05,868 INFO L226 Difference]: Without dead ends: 13660 [2021-05-21 17:30:05,868 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1215.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:05,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13660 states. [2021-05-21 17:30:05,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13660 to 5452. [2021-05-21 17:30:05,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5452 states, 5450 states have (on average 2.6574311926605505) internal successors, (14483), 5451 states have internal predecessors, (14483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:05,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5452 states to 5452 states and 14483 transitions. [2021-05-21 17:30:05,958 INFO L78 Accepts]: Start accepts. Automaton has 5452 states and 14483 transitions. Word has length 114 [2021-05-21 17:30:05,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:05,958 INFO L482 AbstractCegarLoop]: Abstraction has 5452 states and 14483 transitions. [2021-05-21 17:30:05,958 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:05,958 INFO L276 IsEmpty]: Start isEmpty. Operand 5452 states and 14483 transitions. [2021-05-21 17:30:05,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:05,962 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:05,962 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] [2021-05-21 17:30:05,962 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-05-21 17:30:05,962 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:05,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:05,962 INFO L82 PathProgramCache]: Analyzing trace with hash 502825134, now seen corresponding path program 46 times [2021-05-21 17:30:05,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:05,963 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419562759] [2021-05-21 17:30:05,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:06,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:30:06,243 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:06,243 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419562759] [2021-05-21 17:30:06,243 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419562759] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:06,243 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:06,243 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:06,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712637694] [2021-05-21 17:30:06,244 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:06,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:06,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:06,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:06,244 INFO L87 Difference]: Start difference. First operand 5452 states and 14483 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:07,064 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:07,215 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:30:07,386 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:30:07,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:07,517 INFO L93 Difference]: Finished difference Result 16736 states and 43533 transitions. [2021-05-21 17:30:07,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:07,521 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:07,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:07,536 INFO L225 Difference]: With dead ends: 16736 [2021-05-21 17:30:07,537 INFO L226 Difference]: Without dead ends: 16736 [2021-05-21 17:30:07,537 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1164.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:07,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16736 states. [2021-05-21 17:30:07,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16736 to 5484. [2021-05-21 17:30:07,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5482 states have (on average 2.6587012039401676) internal successors, (14575), 5483 states have internal predecessors, (14575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:07,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 14575 transitions. [2021-05-21 17:30:07,641 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 14575 transitions. Word has length 114 [2021-05-21 17:30:07,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:07,641 INFO L482 AbstractCegarLoop]: Abstraction has 5484 states and 14575 transitions. [2021-05-21 17:30:07,641 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:07,641 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 14575 transitions. [2021-05-21 17:30:07,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:07,645 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:07,645 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:07,645 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-05-21 17:30:07,645 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:07,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:07,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1656667540, now seen corresponding path program 47 times [2021-05-21 17:30:07,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:07,646 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808026293] [2021-05-21 17:30:07,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:07,954 INFO 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 17:30:07,954 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:07,954 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808026293] [2021-05-21 17:30:07,954 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808026293] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:07,954 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:07,954 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:07,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414840149] [2021-05-21 17:30:07,955 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:07,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:07,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:07,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:07,955 INFO L87 Difference]: Start difference. First operand 5484 states and 14575 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:08,779 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:08,946 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:30:09,116 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:30:09,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:09,262 INFO L93 Difference]: Finished difference Result 17582 states and 45393 transitions. [2021-05-21 17:30:09,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:09,263 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:09,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:09,277 INFO L225 Difference]: With dead ends: 17582 [2021-05-21 17:30:09,277 INFO L226 Difference]: Without dead ends: 17582 [2021-05-21 17:30:09,277 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1193.3ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:09,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17582 states. [2021-05-21 17:30:09,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17582 to 5468. [2021-05-21 17:30:09,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5468 states, 5466 states have (on average 2.658068057080132) internal successors, (14529), 5467 states have internal predecessors, (14529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:09,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5468 states to 5468 states and 14529 transitions. [2021-05-21 17:30:09,380 INFO L78 Accepts]: Start accepts. Automaton has 5468 states and 14529 transitions. Word has length 114 [2021-05-21 17:30:09,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:09,380 INFO L482 AbstractCegarLoop]: Abstraction has 5468 states and 14529 transitions. [2021-05-21 17:30:09,380 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:09,380 INFO L276 IsEmpty]: Start isEmpty. Operand 5468 states and 14529 transitions. [2021-05-21 17:30:09,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:09,384 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:09,384 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:09,384 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-05-21 17:30:09,384 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:09,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:09,384 INFO L82 PathProgramCache]: Analyzing trace with hash -858804080, now seen corresponding path program 48 times [2021-05-21 17:30:09,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:09,384 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183507236] [2021-05-21 17:30:09,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:09,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:30:09,665 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:09,665 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183507236] [2021-05-21 17:30:09,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183507236] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:09,665 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:09,665 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:09,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503058848] [2021-05-21 17:30:09,666 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:09,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:09,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:09,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:09,666 INFO L87 Difference]: Start difference. First operand 5468 states and 14529 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:10,477 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:10,635 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:30:10,802 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:30:10,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:10,926 INFO L93 Difference]: Finished difference Result 16882 states and 43764 transitions. [2021-05-21 17:30:10,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:10,927 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:10,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:10,940 INFO L225 Difference]: With dead ends: 16882 [2021-05-21 17:30:10,940 INFO L226 Difference]: Without dead ends: 16882 [2021-05-21 17:30:10,941 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1164.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:10,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16882 states. [2021-05-21 17:30:11,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16882 to 5484. [2021-05-21 17:30:11,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5482 states have (on average 2.6587012039401676) internal successors, (14575), 5483 states have internal predecessors, (14575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:11,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 14575 transitions. [2021-05-21 17:30:11,038 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 14575 transitions. Word has length 114 [2021-05-21 17:30:11,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:11,038 INFO L482 AbstractCegarLoop]: Abstraction has 5484 states and 14575 transitions. [2021-05-21 17:30:11,038 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:11,038 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 14575 transitions. [2021-05-21 17:30:11,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:11,042 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:11,042 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:11,042 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-05-21 17:30:11,042 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:11,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:11,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1107351060, now seen corresponding path program 49 times [2021-05-21 17:30:11,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:11,042 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293832483] [2021-05-21 17:30:11,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:11,308 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 17:30:11,308 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:11,309 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293832483] [2021-05-21 17:30:11,309 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293832483] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:11,309 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:11,309 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:11,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154578278] [2021-05-21 17:30:11,309 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:11,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:11,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:11,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:11,309 INFO L87 Difference]: Start difference. First operand 5484 states and 14575 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:12,128 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:12,280 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:30:12,452 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:30:12,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:12,568 INFO L93 Difference]: Finished difference Result 13840 states and 36102 transitions. [2021-05-21 17:30:12,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:12,568 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:12,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:12,580 INFO L225 Difference]: With dead ends: 13840 [2021-05-21 17:30:12,580 INFO L226 Difference]: Without dead ends: 13840 [2021-05-21 17:30:12,580 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1141.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:12,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13840 states. [2021-05-21 17:30:12,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13840 to 5420. [2021-05-21 17:30:12,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5420 states, 5418 states have (on average 2.6561461794019934) internal successors, (14391), 5419 states have internal predecessors, (14391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:12,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5420 states to 5420 states and 14391 transitions. [2021-05-21 17:30:12,666 INFO L78 Accepts]: Start accepts. Automaton has 5420 states and 14391 transitions. Word has length 114 [2021-05-21 17:30:12,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:12,666 INFO L482 AbstractCegarLoop]: Abstraction has 5420 states and 14391 transitions. [2021-05-21 17:30:12,666 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:12,666 INFO L276 IsEmpty]: Start isEmpty. Operand 5420 states and 14391 transitions. [2021-05-21 17:30:12,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:12,669 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:12,669 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, 1] [2021-05-21 17:30:12,670 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-05-21 17:30:12,670 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:12,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:12,670 INFO L82 PathProgramCache]: Analyzing trace with hash 367622960, now seen corresponding path program 50 times [2021-05-21 17:30:12,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:12,670 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002641910] [2021-05-21 17:30:12,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:12,968 INFO 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 17:30:12,969 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:12,969 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002641910] [2021-05-21 17:30:12,969 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002641910] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:12,969 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:12,969 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:12,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982095100] [2021-05-21 17:30:12,969 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:12,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:12,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:12,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:12,970 INFO L87 Difference]: Start difference. First operand 5420 states and 14391 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:13,642 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:30:13,788 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:13,942 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:30:14,111 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:30:14,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:14,223 INFO L93 Difference]: Finished difference Result 12316 states and 32367 transitions. [2021-05-21 17:30:14,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:14,223 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:14,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:14,233 INFO L225 Difference]: With dead ends: 12316 [2021-05-21 17:30:14,233 INFO L226 Difference]: Without dead ends: 12316 [2021-05-21 17:30:14,233 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1167.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:14,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12316 states. [2021-05-21 17:30:14,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12316 to 5480. [2021-05-21 17:30:14,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5480 states, 5478 states have (on average 2.6588170865279297) internal successors, (14565), 5479 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 17:30:14,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5480 states to 5480 states and 14565 transitions. [2021-05-21 17:30:14,315 INFO L78 Accepts]: Start accepts. Automaton has 5480 states and 14565 transitions. Word has length 114 [2021-05-21 17:30:14,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:14,315 INFO L482 AbstractCegarLoop]: Abstraction has 5480 states and 14565 transitions. [2021-05-21 17:30:14,315 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:14,315 INFO L276 IsEmpty]: Start isEmpty. Operand 5480 states and 14565 transitions. [2021-05-21 17:30:14,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:14,319 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:14,319 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:14,319 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-05-21 17:30:14,319 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:14,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:14,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1791869714, now seen corresponding path program 51 times [2021-05-21 17:30:14,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:14,319 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457361343] [2021-05-21 17:30:14,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:14,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:30:14,592 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:14,592 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457361343] [2021-05-21 17:30:14,592 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457361343] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:14,592 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:14,592 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:14,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383531854] [2021-05-21 17:30:14,593 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:14,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:14,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:14,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:14,593 INFO L87 Difference]: Start difference. First operand 5480 states and 14565 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:15,432 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:15,601 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:30:15,768 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:30:15,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:15,894 INFO L93 Difference]: Finished difference Result 13162 states and 34227 transitions. [2021-05-21 17:30:15,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:15,894 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:15,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:15,904 INFO L225 Difference]: With dead ends: 13162 [2021-05-21 17:30:15,905 INFO L226 Difference]: Without dead ends: 13162 [2021-05-21 17:30:15,905 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1177.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:15,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13162 states. [2021-05-21 17:30:15,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13162 to 5464. [2021-05-21 17:30:15,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5464 states, 5462 states have (on average 2.6581838154522153) internal successors, (14519), 5463 states have internal predecessors, (14519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:15,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5464 states to 5464 states and 14519 transitions. [2021-05-21 17:30:15,990 INFO L78 Accepts]: Start accepts. Automaton has 5464 states and 14519 transitions. Word has length 114 [2021-05-21 17:30:15,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:15,990 INFO L482 AbstractCegarLoop]: Abstraction has 5464 states and 14519 transitions. [2021-05-21 17:30:15,991 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:15,991 INFO L276 IsEmpty]: Start isEmpty. Operand 5464 states and 14519 transitions. [2021-05-21 17:30:15,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:15,994 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:15,994 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] [2021-05-21 17:30:15,994 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-05-21 17:30:15,994 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:15,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:15,995 INFO L82 PathProgramCache]: Analyzing trace with hash -994006254, now seen corresponding path program 52 times [2021-05-21 17:30:15,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:15,995 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933960641] [2021-05-21 17:30:15,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:16,274 INFO 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 17:30:16,274 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:16,274 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933960641] [2021-05-21 17:30:16,274 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933960641] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:16,274 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:16,274 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:16,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489467984] [2021-05-21 17:30:16,274 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:16,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:16,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:16,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:16,275 INFO L87 Difference]: Start difference. First operand 5464 states and 14519 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:16,957 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:30:17,097 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:17,258 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:30:17,428 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:30:17,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:17,568 INFO L93 Difference]: Finished difference Result 16368 states and 42341 transitions. [2021-05-21 17:30:17,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:17,569 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:17,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:17,583 INFO L225 Difference]: With dead ends: 16368 [2021-05-21 17:30:17,583 INFO L226 Difference]: Without dead ends: 16368 [2021-05-21 17:30:17,583 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1155.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:17,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16368 states. [2021-05-21 17:30:17,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16368 to 5480. [2021-05-21 17:30:17,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5480 states, 5478 states have (on average 2.6588170865279297) internal successors, (14565), 5479 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 17:30:17,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5480 states to 5480 states and 14565 transitions. [2021-05-21 17:30:17,681 INFO L78 Accepts]: Start accepts. Automaton has 5480 states and 14565 transitions. Word has length 114 [2021-05-21 17:30:17,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:17,681 INFO L482 AbstractCegarLoop]: Abstraction has 5480 states and 14565 transitions. [2021-05-21 17:30:17,682 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:17,682 INFO L276 IsEmpty]: Start isEmpty. Operand 5480 states and 14565 transitions. [2021-05-21 17:30:17,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:17,685 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:17,685 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:17,685 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-05-21 17:30:17,685 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:17,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:17,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1242553234, now seen corresponding path program 53 times [2021-05-21 17:30:17,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:17,686 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865793614] [2021-05-21 17:30:17,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:17,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:17,990 INFO 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 17:30:17,990 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:17,990 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865793614] [2021-05-21 17:30:17,990 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865793614] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:17,990 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:17,990 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:17,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98144708] [2021-05-21 17:30:17,990 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:17,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:17,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:17,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:17,991 INFO L87 Difference]: Start difference. First operand 5480 states and 14565 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:18,809 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:18,961 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:30:19,132 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:30:19,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:19,245 INFO L93 Difference]: Finished difference Result 13326 states and 34679 transitions. [2021-05-21 17:30:19,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:19,245 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:19,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:19,256 INFO L225 Difference]: With dead ends: 13326 [2021-05-21 17:30:19,256 INFO L226 Difference]: Without dead ends: 13326 [2021-05-21 17:30:19,256 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1146.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:19,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13326 states. [2021-05-21 17:30:19,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13326 to 5448. [2021-05-21 17:30:19,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5448 states, 5446 states have (on average 2.657546823356592) internal successors, (14473), 5447 states have internal predecessors, (14473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:19,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5448 states to 5448 states and 14473 transitions. [2021-05-21 17:30:19,340 INFO L78 Accepts]: Start accepts. Automaton has 5448 states and 14473 transitions. Word has length 114 [2021-05-21 17:30:19,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:19,340 INFO L482 AbstractCegarLoop]: Abstraction has 5448 states and 14473 transitions. [2021-05-21 17:30:19,340 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:19,340 INFO L276 IsEmpty]: Start isEmpty. Operand 5448 states and 14473 transitions. [2021-05-21 17:30:19,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:19,344 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:19,344 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:19,344 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-05-21 17:30:19,344 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:19,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:19,344 INFO L82 PathProgramCache]: Analyzing trace with hash 2032143756, now seen corresponding path program 54 times [2021-05-21 17:30:19,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:19,345 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820982847] [2021-05-21 17:30:19,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:19,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:30:19,629 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:19,629 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820982847] [2021-05-21 17:30:19,629 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820982847] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:19,629 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:19,629 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:19,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898814480] [2021-05-21 17:30:19,629 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:19,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:19,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:19,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:19,630 INFO L87 Difference]: Start difference. First operand 5448 states and 14473 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:20,301 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:30:20,460 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:20,621 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:30:20,790 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:30:20,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:20,899 INFO L93 Difference]: Finished difference Result 12446 states and 32552 transitions. [2021-05-21 17:30:20,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:20,900 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:20,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:20,911 INFO L225 Difference]: With dead ends: 12446 [2021-05-21 17:30:20,911 INFO L226 Difference]: Without dead ends: 12446 [2021-05-21 17:30:20,911 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1183.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:20,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12446 states. [2021-05-21 17:30:20,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12446 to 5492. [2021-05-21 17:30:20,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5492 states, 5490 states have (on average 2.6595628415300547) internal successors, (14601), 5491 states have internal predecessors, (14601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:20,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5492 states to 5492 states and 14601 transitions. [2021-05-21 17:30:20,991 INFO L78 Accepts]: Start accepts. Automaton has 5492 states and 14601 transitions. Word has length 114 [2021-05-21 17:30:20,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:20,991 INFO L482 AbstractCegarLoop]: Abstraction has 5492 states and 14601 transitions. [2021-05-21 17:30:20,991 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:20,991 INFO L276 IsEmpty]: Start isEmpty. Operand 5492 states and 14601 transitions. [2021-05-21 17:30:20,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:20,994 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:20,995 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:20,995 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-05-21 17:30:20,995 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:20,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:20,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1783596776, now seen corresponding path program 55 times [2021-05-21 17:30:20,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:20,995 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130536687] [2021-05-21 17:30:20,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:21,272 INFO 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 17:30:21,272 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:21,272 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130536687] [2021-05-21 17:30:21,272 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130536687] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:21,273 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:21,273 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:21,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442712652] [2021-05-21 17:30:21,273 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:21,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:21,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:21,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:21,273 INFO L87 Difference]: Start difference. First operand 5492 states and 14601 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:22,094 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:22,246 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:30:22,419 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:30:22,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:22,534 INFO L93 Difference]: Finished difference Result 12282 states and 32150 transitions. [2021-05-21 17:30:22,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:22,535 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:22,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:22,545 INFO L225 Difference]: With dead ends: 12282 [2021-05-21 17:30:22,545 INFO L226 Difference]: Without dead ends: 12282 [2021-05-21 17:30:22,545 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1156.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:22,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12282 states. [2021-05-21 17:30:22,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12282 to 5476. [2021-05-21 17:30:22,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5476 states, 5474 states have (on average 2.6589331384727806) internal successors, (14555), 5475 states have internal predecessors, (14555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:22,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5476 states to 5476 states and 14555 transitions. [2021-05-21 17:30:22,629 INFO L78 Accepts]: Start accepts. Automaton has 5476 states and 14555 transitions. Word has length 114 [2021-05-21 17:30:22,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:22,629 INFO L482 AbstractCegarLoop]: Abstraction has 5476 states and 14555 transitions. [2021-05-21 17:30:22,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:22,629 INFO L276 IsEmpty]: Start isEmpty. Operand 5476 states and 14555 transitions. [2021-05-21 17:30:22,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:22,633 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:22,633 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:22,633 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-05-21 17:30:22,633 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:22,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:22,634 INFO L82 PathProgramCache]: Analyzing trace with hash 626779472, now seen corresponding path program 56 times [2021-05-21 17:30:22,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:22,634 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704826319] [2021-05-21 17:30:22,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:22,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:30:22,937 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:22,937 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704826319] [2021-05-21 17:30:22,937 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704826319] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:22,937 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:22,937 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:22,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618642270] [2021-05-21 17:30:22,938 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:22,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:22,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:22,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:22,938 INFO L87 Difference]: Start difference. First operand 5476 states and 14555 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:23,615 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:30:23,745 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:30:23,914 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:30:24,090 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:30:24,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:24,209 INFO L93 Difference]: Finished difference Result 9640 states and 25472 transitions. [2021-05-21 17:30:24,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:24,210 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:24,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:24,217 INFO L225 Difference]: With dead ends: 9640 [2021-05-21 17:30:24,217 INFO L226 Difference]: Without dead ends: 9640 [2021-05-21 17:30:24,218 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1184.3ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:24,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9640 states. [2021-05-21 17:30:24,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9640 to 5644. [2021-05-21 17:30:24,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5644 states, 5642 states have (on average 2.6669620701878767) internal successors, (15047), 5643 states have internal predecessors, (15047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:24,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5644 states to 5644 states and 15047 transitions. [2021-05-21 17:30:24,286 INFO L78 Accepts]: Start accepts. Automaton has 5644 states and 15047 transitions. Word has length 114 [2021-05-21 17:30:24,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:24,286 INFO L482 AbstractCegarLoop]: Abstraction has 5644 states and 15047 transitions. [2021-05-21 17:30:24,286 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:24,286 INFO L276 IsEmpty]: Start isEmpty. Operand 5644 states and 15047 transitions. [2021-05-21 17:30:24,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:24,290 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:24,290 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:24,290 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-05-21 17:30:24,290 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:24,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:24,290 INFO L82 PathProgramCache]: Analyzing trace with hash 451863608, now seen corresponding path program 57 times [2021-05-21 17:30:24,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:24,291 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543989341] [2021-05-21 17:30:24,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:24,567 INFO 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 17:30:24,567 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:24,567 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543989341] [2021-05-21 17:30:24,567 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543989341] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:24,567 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:24,567 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-05-21 17:30:24,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226798080] [2021-05-21 17:30:24,568 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-21 17:30:24,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:24,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-21 17:30:24,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-05-21 17:30:24,568 INFO L87 Difference]: Start difference. First operand 5644 states and 15047 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:25,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:25,527 INFO L93 Difference]: Finished difference Result 7307 states and 18489 transitions. [2021-05-21 17:30:25,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-21 17:30:25,527 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:25,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:25,532 INFO L225 Difference]: With dead ends: 7307 [2021-05-21 17:30:25,532 INFO L226 Difference]: Without dead ends: 7307 [2021-05-21 17:30:25,532 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 875.4ms TimeCoverageRelationStatistics Valid=338, Invalid=922, Unknown=0, NotChecked=0, Total=1260 [2021-05-21 17:30:25,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7307 states. [2021-05-21 17:30:25,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7307 to 5660. [2021-05-21 17:30:25,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5660 states, 5658 states have (on average 2.667903852951573) internal successors, (15095), 5659 states have internal predecessors, (15095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:25,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5660 states to 5660 states and 15095 transitions. [2021-05-21 17:30:25,589 INFO L78 Accepts]: Start accepts. Automaton has 5660 states and 15095 transitions. Word has length 114 [2021-05-21 17:30:25,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:25,589 INFO L482 AbstractCegarLoop]: Abstraction has 5660 states and 15095 transitions. [2021-05-21 17:30:25,589 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:25,589 INFO L276 IsEmpty]: Start isEmpty. Operand 5660 states and 15095 transitions. [2021-05-21 17:30:25,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:25,593 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:25,593 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:25,593 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-05-21 17:30:25,593 INFO L430 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:25,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:25,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1771335568, now seen corresponding path program 58 times [2021-05-21 17:30:25,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:25,594 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638005277] [2021-05-21 17:30:25,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:25,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:25,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:30:25,878 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:25,878 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638005277] [2021-05-21 17:30:25,878 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638005277] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:25,878 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:25,878 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:25,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347361196] [2021-05-21 17:30:25,879 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:25,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:25,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:25,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:25,879 INFO L87 Difference]: Start difference. First operand 5660 states and 15095 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:26,713 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:30:26,884 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:30:27,061 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:30:27,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:27,215 INFO L93 Difference]: Finished difference Result 15290 states and 39901 transitions. [2021-05-21 17:30:27,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:27,216 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:27,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:27,229 INFO L225 Difference]: With dead ends: 15290 [2021-05-21 17:30:27,230 INFO L226 Difference]: Without dead ends: 15290 [2021-05-21 17:30:27,230 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1172.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:27,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15290 states. [2021-05-21 17:30:27,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15290 to 5744. [2021-05-21 17:30:27,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5744 states, 5742 states have (on average 2.6717171717171717) internal successors, (15341), 5743 states have internal predecessors, (15341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:27,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5744 states to 5744 states and 15341 transitions. [2021-05-21 17:30:27,331 INFO L78 Accepts]: Start accepts. Automaton has 5744 states and 15341 transitions. Word has length 114 [2021-05-21 17:30:27,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:27,331 INFO L482 AbstractCegarLoop]: Abstraction has 5744 states and 15341 transitions. [2021-05-21 17:30:27,331 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:27,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5744 states and 15341 transitions. [2021-05-21 17:30:27,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:27,335 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:27,335 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] [2021-05-21 17:30:27,336 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-05-21 17:30:27,336 INFO L430 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:27,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:27,336 INFO L82 PathProgramCache]: Analyzing trace with hash -610394992, now seen corresponding path program 59 times [2021-05-21 17:30:27,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:27,336 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897449195] [2021-05-21 17:30:27,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:27,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:30:27,635 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:27,635 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897449195] [2021-05-21 17:30:27,635 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897449195] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:27,636 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:27,636 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:27,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497195433] [2021-05-21 17:30:27,636 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:27,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:27,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:27,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:27,636 INFO L87 Difference]: Start difference. First operand 5744 states and 15341 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:28,346 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:30:28,505 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:28,659 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:30:28,837 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:30:28,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:28,987 INFO L93 Difference]: Finished difference Result 17860 states and 46495 transitions. [2021-05-21 17:30:28,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:28,988 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:28,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:29,002 INFO L225 Difference]: With dead ends: 17860 [2021-05-21 17:30:29,003 INFO L226 Difference]: Without dead ends: 17860 [2021-05-21 17:30:29,003 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1203.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:29,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17860 states. [2021-05-21 17:30:29,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17860 to 5758. [2021-05-21 17:30:29,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5758 states, 5756 states have (on average 2.6723419041000693) internal successors, (15382), 5757 states have internal predecessors, (15382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:29,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5758 states to 5758 states and 15382 transitions. [2021-05-21 17:30:29,107 INFO L78 Accepts]: Start accepts. Automaton has 5758 states and 15382 transitions. Word has length 114 [2021-05-21 17:30:29,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:29,107 INFO L482 AbstractCegarLoop]: Abstraction has 5758 states and 15382 transitions. [2021-05-21 17:30:29,107 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:29,107 INFO L276 IsEmpty]: Start isEmpty. Operand 5758 states and 15382 transitions. [2021-05-21 17:30:29,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:29,111 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:29,111 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:29,111 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-05-21 17:30:29,111 INFO L430 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:29,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:29,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1525079630, now seen corresponding path program 60 times [2021-05-21 17:30:29,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:29,112 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774730502] [2021-05-21 17:30:29,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:29,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:30:29,399 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:29,399 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774730502] [2021-05-21 17:30:29,399 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774730502] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:29,399 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:29,399 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:29,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903441927] [2021-05-21 17:30:29,400 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:29,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:29,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:29,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:29,400 INFO L87 Difference]: Start difference. First operand 5758 states and 15382 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:29,958 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-05-21 17:30:30,105 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:30:30,257 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:30,422 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:30:30,607 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:30:30,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:30,739 INFO L93 Difference]: Finished difference Result 16115 states and 41789 transitions. [2021-05-21 17:30:30,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:30,740 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:30,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:30,753 INFO L225 Difference]: With dead ends: 16115 [2021-05-21 17:30:30,753 INFO L226 Difference]: Without dead ends: 16115 [2021-05-21 17:30:30,753 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1234.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:30,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16115 states. [2021-05-21 17:30:30,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16115 to 5716. [2021-05-21 17:30:30,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5716 states, 5714 states have (on average 2.6704585229261464) internal successors, (15259), 5715 states have internal predecessors, (15259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:30,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5716 states to 5716 states and 15259 transitions. [2021-05-21 17:30:30,851 INFO L78 Accepts]: Start accepts. Automaton has 5716 states and 15259 transitions. Word has length 114 [2021-05-21 17:30:30,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:30,851 INFO L482 AbstractCegarLoop]: Abstraction has 5716 states and 15259 transitions. [2021-05-21 17:30:30,851 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:30,851 INFO L276 IsEmpty]: Start isEmpty. Operand 5716 states and 15259 transitions. [2021-05-21 17:30:30,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:30,855 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:30,856 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] [2021-05-21 17:30:30,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-05-21 17:30:30,856 INFO L430 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:30,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:30,856 INFO L82 PathProgramCache]: Analyzing trace with hash -288648368, now seen corresponding path program 61 times [2021-05-21 17:30:30,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:30,857 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475168664] [2021-05-21 17:30:30,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:31,144 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 17:30:31,144 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:31,144 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475168664] [2021-05-21 17:30:31,144 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475168664] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:31,144 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:31,144 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:31,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148047312] [2021-05-21 17:30:31,145 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:31,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:31,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:31,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:31,145 INFO L87 Difference]: Start difference. First operand 5716 states and 15259 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:31,982 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:32,137 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:30:32,312 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:30:32,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:32,460 INFO L93 Difference]: Finished difference Result 15390 states and 40061 transitions. [2021-05-21 17:30:32,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:32,461 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:32,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:32,474 INFO L225 Difference]: With dead ends: 15390 [2021-05-21 17:30:32,474 INFO L226 Difference]: Without dead ends: 15390 [2021-05-21 17:30:32,475 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1175.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:32,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15390 states. [2021-05-21 17:30:32,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15390 to 5744. [2021-05-21 17:30:32,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5744 states, 5742 states have (on average 2.6717171717171717) internal successors, (15341), 5743 states have internal predecessors, (15341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:32,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5744 states to 5744 states and 15341 transitions. [2021-05-21 17:30:32,571 INFO L78 Accepts]: Start accepts. Automaton has 5744 states and 15341 transitions. Word has length 114 [2021-05-21 17:30:32,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:32,571 INFO L482 AbstractCegarLoop]: Abstraction has 5744 states and 15341 transitions. [2021-05-21 17:30:32,571 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:32,571 INFO L276 IsEmpty]: Start isEmpty. Operand 5744 states and 15341 transitions. [2021-05-21 17:30:32,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:32,575 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:32,575 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:32,575 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-05-21 17:30:32,575 INFO L430 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:32,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:32,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1846826254, now seen corresponding path program 62 times [2021-05-21 17:30:32,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:32,576 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022075664] [2021-05-21 17:30:32,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:32,848 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 17:30:32,848 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:32,848 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022075664] [2021-05-21 17:30:32,848 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022075664] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:32,848 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:32,848 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:32,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373630167] [2021-05-21 17:30:32,849 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:32,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:32,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:32,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:32,849 INFO L87 Difference]: Start difference. First operand 5744 states and 15341 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:33,558 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:30:33,700 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:33,869 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:30:34,043 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:30:34,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:34,200 INFO L93 Difference]: Finished difference Result 16151 states and 41783 transitions. [2021-05-21 17:30:34,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:34,200 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:34,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:34,214 INFO L225 Difference]: With dead ends: 16151 [2021-05-21 17:30:34,215 INFO L226 Difference]: Without dead ends: 16151 [2021-05-21 17:30:34,215 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1188.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:34,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16151 states. [2021-05-21 17:30:34,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16151 to 5730. [2021-05-21 17:30:34,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5730 states, 5728 states have (on average 2.6710893854748603) internal successors, (15300), 5729 states have internal predecessors, (15300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:34,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5730 states to 5730 states and 15300 transitions. [2021-05-21 17:30:34,315 INFO L78 Accepts]: Start accepts. Automaton has 5730 states and 15300 transitions. Word has length 114 [2021-05-21 17:30:34,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:34,315 INFO L482 AbstractCegarLoop]: Abstraction has 5730 states and 15300 transitions. [2021-05-21 17:30:34,315 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:34,315 INFO L276 IsEmpty]: Start isEmpty. Operand 5730 states and 15300 transitions. [2021-05-21 17:30:34,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:34,319 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:34,319 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:34,319 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-05-21 17:30:34,319 INFO L430 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:34,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:34,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1650277582, now seen corresponding path program 63 times [2021-05-21 17:30:34,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:34,319 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214317588] [2021-05-21 17:30:34,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:34,603 INFO 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 17:30:34,603 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:34,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214317588] [2021-05-21 17:30:34,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214317588] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:34,603 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:34,603 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:34,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981696381] [2021-05-21 17:30:34,604 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:34,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:34,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:34,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:34,604 INFO L87 Difference]: Start difference. First operand 5730 states and 15300 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:35,273 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:30:35,414 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:35,575 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:30:35,765 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:30:35,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:35,891 INFO L93 Difference]: Finished difference Result 15534 states and 40299 transitions. [2021-05-21 17:30:35,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:35,891 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:35,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:35,905 INFO L225 Difference]: With dead ends: 15534 [2021-05-21 17:30:35,905 INFO L226 Difference]: Without dead ends: 15534 [2021-05-21 17:30:35,905 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1195.8ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:35,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15534 states. [2021-05-21 17:30:35,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15534 to 5744. [2021-05-21 17:30:35,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5744 states, 5742 states have (on average 2.6717171717171717) internal successors, (15341), 5743 states have internal predecessors, (15341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:36,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5744 states to 5744 states and 15341 transitions. [2021-05-21 17:30:36,003 INFO L78 Accepts]: Start accepts. Automaton has 5744 states and 15341 transitions. Word has length 114 [2021-05-21 17:30:36,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:36,003 INFO L482 AbstractCegarLoop]: Abstraction has 5744 states and 15341 transitions. [2021-05-21 17:30:36,003 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:36,003 INFO L276 IsEmpty]: Start isEmpty. Operand 5744 states and 15341 transitions. [2021-05-21 17:30:36,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:36,007 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:36,007 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:36,007 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-05-21 17:30:36,007 INFO L430 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:36,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:36,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1898824562, now seen corresponding path program 64 times [2021-05-21 17:30:36,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:36,008 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261150916] [2021-05-21 17:30:36,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:36,296 INFO 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 17:30:36,296 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:36,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261150916] [2021-05-21 17:30:36,296 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261150916] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:36,297 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:36,297 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:36,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263349787] [2021-05-21 17:30:36,297 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:36,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:36,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:36,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:36,297 INFO L87 Difference]: Start difference. First operand 5744 states and 15341 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:36,989 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:30:37,131 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:37,284 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:30:37,457 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:30:37,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:37,587 INFO L93 Difference]: Finished difference Result 12920 states and 33665 transitions. [2021-05-21 17:30:37,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:37,587 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:37,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:37,599 INFO L225 Difference]: With dead ends: 12920 [2021-05-21 17:30:37,599 INFO L226 Difference]: Without dead ends: 12920 [2021-05-21 17:30:37,599 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1196.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:37,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12920 states. [2021-05-21 17:30:37,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12920 to 5688. [2021-05-21 17:30:37,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5688 states, 5686 states have (on average 2.66918747801618) internal successors, (15177), 5687 states have internal predecessors, (15177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:37,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5688 states to 5688 states and 15177 transitions. [2021-05-21 17:30:37,682 INFO L78 Accepts]: Start accepts. Automaton has 5688 states and 15177 transitions. Word has length 114 [2021-05-21 17:30:37,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:37,683 INFO L482 AbstractCegarLoop]: Abstraction has 5688 states and 15177 transitions. [2021-05-21 17:30:37,683 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:37,683 INFO L276 IsEmpty]: Start isEmpty. Operand 5688 states and 15177 transitions. [2021-05-21 17:30:37,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:37,687 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:37,687 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:37,687 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-05-21 17:30:37,687 INFO L430 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:37,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:37,687 INFO L82 PathProgramCache]: Analyzing trace with hash 1676657330, now seen corresponding path program 65 times [2021-05-21 17:30:37,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:37,687 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723251943] [2021-05-21 17:30:37,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:37,985 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 17:30:37,985 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:37,985 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723251943] [2021-05-21 17:30:37,985 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723251943] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:37,985 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:37,985 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:37,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494183539] [2021-05-21 17:30:37,985 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:37,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:37,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:37,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:37,986 INFO L87 Difference]: Start difference. First operand 5688 states and 15177 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:38,688 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:30:38,822 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:30:38,995 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:30:39,172 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:30:39,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:39,323 INFO L93 Difference]: Finished difference Result 18003 states and 47073 transitions. [2021-05-21 17:30:39,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:39,323 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:39,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:39,339 INFO L225 Difference]: With dead ends: 18003 [2021-05-21 17:30:39,339 INFO L226 Difference]: Without dead ends: 18003 [2021-05-21 17:30:39,339 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1190.2ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:39,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18003 states. [2021-05-21 17:30:39,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18003 to 5730. [2021-05-21 17:30:39,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5730 states, 5728 states have (on average 2.6710893854748603) internal successors, (15300), 5729 states have internal predecessors, (15300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:39,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5730 states to 5730 states and 15300 transitions. [2021-05-21 17:30:39,447 INFO L78 Accepts]: Start accepts. Automaton has 5730 states and 15300 transitions. Word has length 114 [2021-05-21 17:30:39,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:39,448 INFO L482 AbstractCegarLoop]: Abstraction has 5730 states and 15300 transitions. [2021-05-21 17:30:39,448 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:39,448 INFO L276 IsEmpty]: Start isEmpty. Operand 5730 states and 15300 transitions. [2021-05-21 17:30:39,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:39,452 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:39,452 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] [2021-05-21 17:30:39,452 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-05-21 17:30:39,452 INFO L430 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:39,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:39,452 INFO L82 PathProgramCache]: Analyzing trace with hash -705073230, now seen corresponding path program 66 times [2021-05-21 17:30:39,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:39,453 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727800968] [2021-05-21 17:30:39,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:39,761 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 17:30:39,761 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:39,761 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727800968] [2021-05-21 17:30:39,761 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727800968] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:39,761 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:39,761 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:39,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365914343] [2021-05-21 17:30:39,762 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:39,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:39,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:39,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:39,762 INFO L87 Difference]: Start difference. First operand 5730 states and 15300 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:40,609 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:40,791 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:30:40,964 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:30:41,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:41,125 INFO L93 Difference]: Finished difference Result 18091 states and 47239 transitions. [2021-05-21 17:30:41,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:41,125 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:41,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:41,140 INFO L225 Difference]: With dead ends: 18091 [2021-05-21 17:30:41,140 INFO L226 Difference]: Without dead ends: 18091 [2021-05-21 17:30:41,141 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1206.0ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:41,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18091 states. [2021-05-21 17:30:41,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18091 to 5744. [2021-05-21 17:30:41,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5744 states, 5742 states have (on average 2.6717171717171717) internal successors, (15341), 5743 states have internal predecessors, (15341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:41,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5744 states to 5744 states and 15341 transitions. [2021-05-21 17:30:41,246 INFO L78 Accepts]: Start accepts. Automaton has 5744 states and 15341 transitions. Word has length 114 [2021-05-21 17:30:41,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:41,246 INFO L482 AbstractCegarLoop]: Abstraction has 5744 states and 15341 transitions. [2021-05-21 17:30:41,246 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:41,246 INFO L276 IsEmpty]: Start isEmpty. Operand 5744 states and 15341 transitions. [2021-05-21 17:30:41,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:41,250 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:41,250 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] [2021-05-21 17:30:41,250 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-05-21 17:30:41,250 INFO L430 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:41,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:41,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1430401392, now seen corresponding path program 67 times [2021-05-21 17:30:41,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:41,250 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646757531] [2021-05-21 17:30:41,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:41,579 INFO 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 17:30:41,579 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:41,579 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646757531] [2021-05-21 17:30:41,579 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646757531] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:41,579 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:41,579 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:41,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412828274] [2021-05-21 17:30:41,580 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:41,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:41,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:41,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:41,580 INFO L87 Difference]: Start difference. First operand 5744 states and 15341 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:42,439 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:42,610 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:30:42,783 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:30:42,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:42,942 INFO L93 Difference]: Finished difference Result 17507 states and 45357 transitions. [2021-05-21 17:30:42,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:42,942 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:42,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:42,958 INFO L225 Difference]: With dead ends: 17507 [2021-05-21 17:30:42,958 INFO L226 Difference]: Without dead ends: 17507 [2021-05-21 17:30:42,958 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1229.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:42,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17507 states. [2021-05-21 17:30:43,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17507 to 5702. [2021-05-21 17:30:43,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5702 states, 5700 states have (on average 2.6698245614035088) internal successors, (15218), 5701 states have internal predecessors, (15218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:43,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5702 states to 5702 states and 15218 transitions. [2021-05-21 17:30:43,061 INFO L78 Accepts]: Start accepts. Automaton has 5702 states and 15218 transitions. Word has length 114 [2021-05-21 17:30:43,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:43,061 INFO L482 AbstractCegarLoop]: Abstraction has 5702 states and 15218 transitions. [2021-05-21 17:30:43,062 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:43,062 INFO L276 IsEmpty]: Start isEmpty. Operand 5702 states and 15218 transitions. [2021-05-21 17:30:43,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:43,065 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:43,065 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:43,065 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-05-21 17:30:43,066 INFO L430 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:43,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:43,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1297840016, now seen corresponding path program 68 times [2021-05-21 17:30:43,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:43,066 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692321482] [2021-05-21 17:30:43,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:43,421 INFO 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 17:30:43,421 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:43,421 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692321482] [2021-05-21 17:30:43,421 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692321482] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:43,421 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:43,422 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:43,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113113784] [2021-05-21 17:30:43,422 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:43,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:43,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:43,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:43,422 INFO L87 Difference]: Start difference. First operand 5702 states and 15218 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:44,230 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:30:44,406 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:30:44,583 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:30:44,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:44,711 INFO L93 Difference]: Finished difference Result 14049 states and 36543 transitions. [2021-05-21 17:30:44,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:44,711 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:44,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:44,723 INFO L225 Difference]: With dead ends: 14049 [2021-05-21 17:30:44,723 INFO L226 Difference]: Without dead ends: 14049 [2021-05-21 17:30:44,723 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1204.3ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:44,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14049 states. [2021-05-21 17:30:44,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14049 to 5674. [2021-05-21 17:30:44,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5674 states, 5672 states have (on average 2.6685472496473905) internal successors, (15136), 5673 states have internal predecessors, (15136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:44,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5674 states to 5674 states and 15136 transitions. [2021-05-21 17:30:44,811 INFO L78 Accepts]: Start accepts. Automaton has 5674 states and 15136 transitions. Word has length 114 [2021-05-21 17:30:44,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:44,811 INFO L482 AbstractCegarLoop]: Abstraction has 5674 states and 15136 transitions. [2021-05-21 17:30:44,811 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:44,811 INFO L276 IsEmpty]: Start isEmpty. Operand 5674 states and 15136 transitions. [2021-05-21 17:30:44,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:44,815 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:44,815 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:44,815 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-05-21 17:30:44,815 INFO L430 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:44,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:44,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1270755022, now seen corresponding path program 69 times [2021-05-21 17:30:44,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:44,816 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084263443] [2021-05-21 17:30:44,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:44,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:45,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:30:45,129 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:45,129 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084263443] [2021-05-21 17:30:45,129 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084263443] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:45,129 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:45,129 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:45,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497337295] [2021-05-21 17:30:45,129 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:45,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:45,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:45,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:45,130 INFO L87 Difference]: Start difference. First operand 5674 states and 15136 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:45,946 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:30:46,113 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:30:46,286 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:30:46,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:46,417 INFO L93 Difference]: Finished difference Result 13368 states and 35129 transitions. [2021-05-21 17:30:46,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:46,417 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:46,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:46,429 INFO L225 Difference]: With dead ends: 13368 [2021-05-21 17:30:46,430 INFO L226 Difference]: Without dead ends: 13368 [2021-05-21 17:30:46,430 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1196.5ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:46,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13368 states. [2021-05-21 17:30:46,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13368 to 5730. [2021-05-21 17:30:46,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5730 states, 5728 states have (on average 2.6710893854748603) internal successors, (15300), 5729 states have internal predecessors, (15300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:46,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5730 states to 5730 states and 15300 transitions. [2021-05-21 17:30:46,523 INFO L78 Accepts]: Start accepts. Automaton has 5730 states and 15300 transitions. Word has length 114 [2021-05-21 17:30:46,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:46,524 INFO L482 AbstractCegarLoop]: Abstraction has 5730 states and 15300 transitions. [2021-05-21 17:30:46,524 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:46,524 INFO L276 IsEmpty]: Start isEmpty. Operand 5730 states and 15300 transitions. [2021-05-21 17:30:46,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:46,528 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:46,529 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:46,529 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-05-21 17:30:46,529 INFO L430 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:46,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:46,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1110975538, now seen corresponding path program 70 times [2021-05-21 17:30:46,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:46,529 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898392277] [2021-05-21 17:30:46,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:46,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:30:46,837 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:46,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898392277] [2021-05-21 17:30:46,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898392277] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:46,838 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:46,838 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:46,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119167259] [2021-05-21 17:30:46,838 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:46,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:46,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:46,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:46,838 INFO L87 Difference]: Start difference. First operand 5730 states and 15300 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:47,529 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:30:47,689 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:47,846 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:30:48,023 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:30:48,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:48,165 INFO L93 Difference]: Finished difference Result 13456 states and 35295 transitions. [2021-05-21 17:30:48,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:48,165 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:48,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:48,177 INFO L225 Difference]: With dead ends: 13456 [2021-05-21 17:30:48,177 INFO L226 Difference]: Without dead ends: 13456 [2021-05-21 17:30:48,178 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1197.1ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:48,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13456 states. [2021-05-21 17:30:48,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13456 to 5744. [2021-05-21 17:30:48,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5744 states, 5742 states have (on average 2.6717171717171717) internal successors, (15341), 5743 states have internal predecessors, (15341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:48,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5744 states to 5744 states and 15341 transitions. [2021-05-21 17:30:48,271 INFO L78 Accepts]: Start accepts. Automaton has 5744 states and 15341 transitions. Word has length 114 [2021-05-21 17:30:48,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:48,271 INFO L482 AbstractCegarLoop]: Abstraction has 5744 states and 15341 transitions. [2021-05-21 17:30:48,271 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:48,271 INFO L276 IsEmpty]: Start isEmpty. Operand 5744 states and 15341 transitions. [2021-05-21 17:30:48,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:48,275 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:48,275 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:48,275 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-05-21 17:30:48,275 INFO L430 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:48,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:48,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1024499084, now seen corresponding path program 71 times [2021-05-21 17:30:48,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:48,276 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411342865] [2021-05-21 17:30:48,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:48,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:30:48,622 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:48,623 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411342865] [2021-05-21 17:30:48,623 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411342865] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:48,623 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:48,623 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:48,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609045754] [2021-05-21 17:30:48,623 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:48,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:48,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:48,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:48,623 INFO L87 Difference]: Start difference. First operand 5744 states and 15341 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:49,315 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:30:49,475 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:49,646 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:30:49,823 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:30:49,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:49,964 INFO L93 Difference]: Finished difference Result 12872 states and 33413 transitions. [2021-05-21 17:30:49,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:49,964 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:49,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:49,975 INFO L225 Difference]: With dead ends: 12872 [2021-05-21 17:30:49,976 INFO L226 Difference]: Without dead ends: 12872 [2021-05-21 17:30:49,976 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1219.7ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:49,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12872 states. [2021-05-21 17:30:50,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12872 to 5702. [2021-05-21 17:30:50,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5702 states, 5700 states have (on average 2.6698245614035088) internal successors, (15218), 5701 states have internal predecessors, (15218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:50,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5702 states to 5702 states and 15218 transitions. [2021-05-21 17:30:50,061 INFO L78 Accepts]: Start accepts. Automaton has 5702 states and 15218 transitions. Word has length 114 [2021-05-21 17:30:50,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:50,061 INFO L482 AbstractCegarLoop]: Abstraction has 5702 states and 15218 transitions. [2021-05-21 17:30:50,061 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:50,061 INFO L276 IsEmpty]: Start isEmpty. Operand 5702 states and 15218 transitions. [2021-05-21 17:30:50,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:50,065 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:50,065 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:50,065 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-05-21 17:30:50,065 INFO L430 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:50,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:50,065 INFO L82 PathProgramCache]: Analyzing trace with hash 891937708, now seen corresponding path program 72 times [2021-05-21 17:30:50,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:50,066 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277170677] [2021-05-21 17:30:50,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:50,387 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 17:30:50,387 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:50,387 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277170677] [2021-05-21 17:30:50,387 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277170677] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:50,387 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:50,387 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:50,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174103434] [2021-05-21 17:30:50,387 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:50,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:50,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:50,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:50,388 INFO L87 Difference]: Start difference. First operand 5702 states and 15218 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:50,986 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2021-05-21 17:30:51,241 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:30:51,419 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:30:51,600 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:30:51,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:51,728 INFO L93 Difference]: Finished difference Result 12924 states and 33679 transitions. [2021-05-21 17:30:51,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:51,729 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:51,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:51,740 INFO L225 Difference]: With dead ends: 12924 [2021-05-21 17:30:51,740 INFO L226 Difference]: Without dead ends: 12924 [2021-05-21 17:30:51,741 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1218.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:51,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12924 states. [2021-05-21 17:30:51,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12924 to 5688. [2021-05-21 17:30:51,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5688 states, 5686 states have (on average 2.66918747801618) internal successors, (15177), 5687 states have internal predecessors, (15177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:51,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5688 states to 5688 states and 15177 transitions. [2021-05-21 17:30:51,825 INFO L78 Accepts]: Start accepts. Automaton has 5688 states and 15177 transitions. Word has length 114 [2021-05-21 17:30:51,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:51,826 INFO L482 AbstractCegarLoop]: Abstraction has 5688 states and 15177 transitions. [2021-05-21 17:30:51,826 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:51,826 INFO L276 IsEmpty]: Start isEmpty. Operand 5688 states and 15177 transitions. [2021-05-21 17:30:51,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:51,829 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:51,830 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:51,830 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-05-21 17:30:51,830 INFO L430 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:51,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:51,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1232182066, now seen corresponding path program 73 times [2021-05-21 17:30:51,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:51,830 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131320016] [2021-05-21 17:30:51,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:52,147 INFO 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 17:30:52,148 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:52,148 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131320016] [2021-05-21 17:30:52,148 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131320016] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:52,148 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:52,148 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:52,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033353040] [2021-05-21 17:30:52,148 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:52,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:52,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:52,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:52,149 INFO L87 Difference]: Start difference. First operand 5688 states and 15177 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:52,944 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:30:53,129 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:30:53,307 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:30:53,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:53,419 INFO L93 Difference]: Finished difference Result 9350 states and 24433 transitions. [2021-05-21 17:30:53,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:53,419 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:53,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:53,426 INFO L225 Difference]: With dead ends: 9350 [2021-05-21 17:30:53,427 INFO L226 Difference]: Without dead ends: 9350 [2021-05-21 17:30:53,427 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1184.4ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:53,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9350 states. [2021-05-21 17:30:53,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9350 to 5660. [2021-05-21 17:30:53,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5660 states, 5658 states have (on average 2.667903852951573) internal successors, (15095), 5659 states have internal predecessors, (15095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:53,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5660 states to 5660 states and 15095 transitions. [2021-05-21 17:30:53,496 INFO L78 Accepts]: Start accepts. Automaton has 5660 states and 15095 transitions. Word has length 114 [2021-05-21 17:30:53,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:53,496 INFO L482 AbstractCegarLoop]: Abstraction has 5660 states and 15095 transitions. [2021-05-21 17:30:53,496 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:53,496 INFO L276 IsEmpty]: Start isEmpty. Operand 5660 states and 15095 transitions. [2021-05-21 17:30:53,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:53,500 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:53,500 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] [2021-05-21 17:30:53,500 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-05-21 17:30:53,500 INFO L430 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:53,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:53,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1708873166, now seen corresponding path program 74 times [2021-05-21 17:30:53,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:53,501 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923902379] [2021-05-21 17:30:53,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:53,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:30:53,826 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:53,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923902379] [2021-05-21 17:30:53,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923902379] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:53,827 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:53,827 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:53,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758041692] [2021-05-21 17:30:53,827 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:53,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:53,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:53,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:53,827 INFO L87 Difference]: Start difference. First operand 5660 states and 15095 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:54,500 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:30:54,631 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:30:54,795 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:30:54,972 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:30:55,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:55,122 INFO L93 Difference]: Finished difference Result 24417 states and 64144 transitions. [2021-05-21 17:30:55,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:55,123 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:55,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:55,144 INFO L225 Difference]: With dead ends: 24417 [2021-05-21 17:30:55,145 INFO L226 Difference]: Without dead ends: 24417 [2021-05-21 17:30:55,145 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1165.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:55,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24417 states. [2021-05-21 17:30:55,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24417 to 5818. [2021-05-21 17:30:55,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5818 states, 5816 states have (on average 2.673658872077029) internal successors, (15550), 5817 states have internal predecessors, (15550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:55,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5818 states to 5818 states and 15550 transitions. [2021-05-21 17:30:55,290 INFO L78 Accepts]: Start accepts. Automaton has 5818 states and 15550 transitions. Word has length 114 [2021-05-21 17:30:55,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:55,290 INFO L482 AbstractCegarLoop]: Abstraction has 5818 states and 15550 transitions. [2021-05-21 17:30:55,290 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:55,290 INFO L276 IsEmpty]: Start isEmpty. Operand 5818 states and 15550 transitions. [2021-05-21 17:30:55,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:55,294 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:55,294 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] [2021-05-21 17:30:55,294 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-05-21 17:30:55,294 INFO L430 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:55,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:55,294 INFO L82 PathProgramCache]: Analyzing trace with hash -672857394, now seen corresponding path program 75 times [2021-05-21 17:30:55,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:55,294 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10851386] [2021-05-21 17:30:55,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:55,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:55,583 INFO 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 17:30:55,583 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:55,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10851386] [2021-05-21 17:30:55,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10851386] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:55,583 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:55,583 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:55,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041275395] [2021-05-21 17:30:55,583 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:55,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:55,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:55,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:55,584 INFO L87 Difference]: Start difference. First operand 5818 states and 15550 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:56,421 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:56,571 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:30:56,748 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:30:56,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:56,900 INFO L93 Difference]: Finished difference Result 27041 states and 70867 transitions. [2021-05-21 17:30:56,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:56,901 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:56,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:56,925 INFO L225 Difference]: With dead ends: 27041 [2021-05-21 17:30:56,925 INFO L226 Difference]: Without dead ends: 27041 [2021-05-21 17:30:56,925 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1187.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:56,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27041 states. [2021-05-21 17:30:57,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27041 to 5834. [2021-05-21 17:30:57,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5834 states, 5832 states have (on average 2.674211248285322) internal successors, (15596), 5833 states have internal predecessors, (15596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:57,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5834 states to 5834 states and 15596 transitions. [2021-05-21 17:30:57,075 INFO L78 Accepts]: Start accepts. Automaton has 5834 states and 15596 transitions. Word has length 114 [2021-05-21 17:30:57,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:57,076 INFO L482 AbstractCegarLoop]: Abstraction has 5834 states and 15596 transitions. [2021-05-21 17:30:57,076 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:57,076 INFO L276 IsEmpty]: Start isEmpty. Operand 5834 states and 15596 transitions. [2021-05-21 17:30:57,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:57,080 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:57,080 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:57,080 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-05-21 17:30:57,080 INFO L430 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:57,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:57,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1462617228, now seen corresponding path program 76 times [2021-05-21 17:30:57,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:57,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360576944] [2021-05-21 17:30:57,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:57,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:57,388 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 17:30:57,388 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:57,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360576944] [2021-05-21 17:30:57,388 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360576944] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:57,388 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:57,388 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:57,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139912968] [2021-05-21 17:30:57,390 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:57,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:57,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:57,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:57,390 INFO L87 Difference]: Start difference. First operand 5834 states and 15596 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:58,233 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:30:58,398 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:30:58,575 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:30:58,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:30:58,747 INFO L93 Difference]: Finished difference Result 25321 states and 66155 transitions. [2021-05-21 17:30:58,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:30:58,748 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:30:58,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:30:58,770 INFO L225 Difference]: With dead ends: 25321 [2021-05-21 17:30:58,770 INFO L226 Difference]: Without dead ends: 25321 [2021-05-21 17:30:58,770 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1198.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:30:58,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25321 states. [2021-05-21 17:30:58,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25321 to 5806. [2021-05-21 17:30:58,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5806 states, 5804 states have (on average 2.669882839421089) internal successors, (15496), 5805 states have internal predecessors, (15496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:58,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5806 states to 5806 states and 15496 transitions. [2021-05-21 17:30:58,907 INFO L78 Accepts]: Start accepts. Automaton has 5806 states and 15496 transitions. Word has length 114 [2021-05-21 17:30:58,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:30:58,907 INFO L482 AbstractCegarLoop]: Abstraction has 5806 states and 15496 transitions. [2021-05-21 17:30:58,907 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:58,907 INFO L276 IsEmpty]: Start isEmpty. Operand 5806 states and 15496 transitions. [2021-05-21 17:30:58,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:30:58,911 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:30:58,911 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:58,911 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-05-21 17:30:58,911 INFO L430 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:30:58,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:30:58,912 INFO L82 PathProgramCache]: Analyzing trace with hash -351110770, now seen corresponding path program 77 times [2021-05-21 17:30:58,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:30:58,912 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358974643] [2021-05-21 17:30:58,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:30:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:30:59,180 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 17:30:59,180 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:30:59,180 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358974643] [2021-05-21 17:30:59,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358974643] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:30:59,180 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:30:59,180 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:30:59,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715673428] [2021-05-21 17:30:59,180 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:30:59,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:30:59,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:30:59,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:30:59,181 INFO L87 Difference]: Start difference. First operand 5806 states and 15496 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:30:59,991 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:00,141 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:31:00,311 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:31:00,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:00,455 INFO L93 Difference]: Finished difference Result 24521 states and 64302 transitions. [2021-05-21 17:31:00,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:00,456 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:00,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:00,476 INFO L225 Difference]: With dead ends: 24521 [2021-05-21 17:31:00,476 INFO L226 Difference]: Without dead ends: 24521 [2021-05-21 17:31:00,476 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1146.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:00,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24521 states. [2021-05-21 17:31:00,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24521 to 5838. [2021-05-21 17:31:00,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5838 states, 5836 states have (on average 2.6710075394105552) internal successors, (15588), 5837 states have internal predecessors, (15588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:00,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5838 states to 5838 states and 15588 transitions. [2021-05-21 17:31:00,610 INFO L78 Accepts]: Start accepts. Automaton has 5838 states and 15588 transitions. Word has length 114 [2021-05-21 17:31:00,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:00,610 INFO L482 AbstractCegarLoop]: Abstraction has 5838 states and 15588 transitions. [2021-05-21 17:31:00,611 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:00,611 INFO L276 IsEmpty]: Start isEmpty. Operand 5838 states and 15588 transitions. [2021-05-21 17:31:00,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:00,614 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:00,615 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:00,615 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-05-21 17:31:00,615 INFO L430 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:00,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:00,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1784363852, now seen corresponding path program 78 times [2021-05-21 17:31:00,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:00,615 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703013137] [2021-05-21 17:31:00,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:00,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:31:00,937 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:00,937 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703013137] [2021-05-21 17:31:00,937 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703013137] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:00,937 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:00,937 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:00,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11740332] [2021-05-21 17:31:00,937 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:00,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:00,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:00,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:00,938 INFO L87 Difference]: Start difference. First operand 5838 states and 15588 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:01,754 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:01,917 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:31:02,082 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:31:02,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:02,228 INFO L93 Difference]: Finished difference Result 25367 states and 66162 transitions. [2021-05-21 17:31:02,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:02,228 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:02,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:02,252 INFO L225 Difference]: With dead ends: 25367 [2021-05-21 17:31:02,252 INFO L226 Difference]: Without dead ends: 25367 [2021-05-21 17:31:02,252 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1213.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:02,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25367 states. [2021-05-21 17:31:02,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25367 to 5822. [2021-05-21 17:31:02,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5822 states, 5820 states have (on average 2.670446735395189) internal successors, (15542), 5821 states have internal predecessors, (15542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:02,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5822 states to 5822 states and 15542 transitions. [2021-05-21 17:31:02,391 INFO L78 Accepts]: Start accepts. Automaton has 5822 states and 15542 transitions. Word has length 114 [2021-05-21 17:31:02,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:02,392 INFO L482 AbstractCegarLoop]: Abstraction has 5822 states and 15542 transitions. [2021-05-21 17:31:02,392 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:02,392 INFO L276 IsEmpty]: Start isEmpty. Operand 5822 states and 15542 transitions. [2021-05-21 17:31:02,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:02,396 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:02,396 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:02,396 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-05-21 17:31:02,396 INFO L430 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:02,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:02,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1712739984, now seen corresponding path program 79 times [2021-05-21 17:31:02,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:02,396 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704006573] [2021-05-21 17:31:02,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:02,683 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 17:31:02,683 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:02,683 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704006573] [2021-05-21 17:31:02,683 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704006573] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:02,683 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:02,683 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:02,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845099817] [2021-05-21 17:31:02,684 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:02,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:02,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:02,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:02,684 INFO L87 Difference]: Start difference. First operand 5822 states and 15542 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:03,383 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:31:03,525 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:03,692 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:31:03,868 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:31:04,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:04,031 INFO L93 Difference]: Finished difference Result 24667 states and 64533 transitions. [2021-05-21 17:31:04,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:04,032 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:04,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:04,054 INFO L225 Difference]: With dead ends: 24667 [2021-05-21 17:31:04,055 INFO L226 Difference]: Without dead ends: 24667 [2021-05-21 17:31:04,055 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1180.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:04,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24667 states. [2021-05-21 17:31:04,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24667 to 5838. [2021-05-21 17:31:04,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5838 states, 5836 states have (on average 2.6710075394105552) internal successors, (15588), 5837 states have internal predecessors, (15588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:04,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5838 states to 5838 states and 15588 transitions. [2021-05-21 17:31:04,194 INFO L78 Accepts]: Start accepts. Automaton has 5838 states and 15588 transitions. Word has length 114 [2021-05-21 17:31:04,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:04,194 INFO L482 AbstractCegarLoop]: Abstraction has 5838 states and 15588 transitions. [2021-05-21 17:31:04,194 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:04,194 INFO L276 IsEmpty]: Start isEmpty. Operand 5838 states and 15588 transitions. [2021-05-21 17:31:04,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:04,198 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:04,198 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:04,198 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-05-21 17:31:04,199 INFO L430 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:04,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:04,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1961286964, now seen corresponding path program 80 times [2021-05-21 17:31:04,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:04,199 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161480121] [2021-05-21 17:31:04,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:04,467 INFO 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 17:31:04,467 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:04,467 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161480121] [2021-05-21 17:31:04,467 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161480121] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:04,467 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:04,468 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:04,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176466340] [2021-05-21 17:31:04,468 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:04,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:04,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:04,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:04,468 INFO L87 Difference]: Start difference. First operand 5838 states and 15588 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:05,294 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:05,448 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:31:05,622 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:31:05,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:05,767 INFO L93 Difference]: Finished difference Result 21925 states and 57621 transitions. [2021-05-21 17:31:05,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:05,767 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:05,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:05,785 INFO L225 Difference]: With dead ends: 21925 [2021-05-21 17:31:05,785 INFO L226 Difference]: Without dead ends: 21925 [2021-05-21 17:31:05,786 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1150.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:05,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21925 states. [2021-05-21 17:31:05,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21925 to 5794. [2021-05-21 17:31:05,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5794 states, 5792 states have (on average 2.6681629834254146) internal successors, (15454), 5793 states have internal predecessors, (15454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:05,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5794 states to 5794 states and 15454 transitions. [2021-05-21 17:31:05,924 INFO L78 Accepts]: Start accepts. Automaton has 5794 states and 15454 transitions. Word has length 114 [2021-05-21 17:31:05,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:05,924 INFO L482 AbstractCegarLoop]: Abstraction has 5794 states and 15454 transitions. [2021-05-21 17:31:05,924 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:05,924 INFO L276 IsEmpty]: Start isEmpty. Operand 5794 states and 15454 transitions. [2021-05-21 17:31:05,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:05,928 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:05,929 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:05,929 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-05-21 17:31:05,929 INFO L430 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:05,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:05,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1614194928, now seen corresponding path program 81 times [2021-05-21 17:31:05,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:05,929 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229902018] [2021-05-21 17:31:05,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:06,239 INFO 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 17:31:06,239 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:06,239 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229902018] [2021-05-21 17:31:06,239 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229902018] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:06,239 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:06,239 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:06,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875852994] [2021-05-21 17:31:06,239 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:06,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:06,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:06,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:06,240 INFO L87 Difference]: Start difference. First operand 5794 states and 15454 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:06,928 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:31:07,060 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:31:07,228 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:31:07,403 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:31:07,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:07,556 INFO L93 Difference]: Finished difference Result 23117 states and 61013 transitions. [2021-05-21 17:31:07,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:07,557 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:07,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:07,579 INFO L225 Difference]: With dead ends: 23117 [2021-05-21 17:31:07,579 INFO L226 Difference]: Without dead ends: 23117 [2021-05-21 17:31:07,580 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1192.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:07,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23117 states. [2021-05-21 17:31:07,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23117 to 5842. [2021-05-21 17:31:07,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5842 states, 5840 states have (on average 2.66986301369863) internal successors, (15592), 5841 states have internal predecessors, (15592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:07,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5842 states to 5842 states and 15592 transitions. [2021-05-21 17:31:07,715 INFO L78 Accepts]: Start accepts. Automaton has 5842 states and 15592 transitions. Word has length 114 [2021-05-21 17:31:07,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:07,715 INFO L482 AbstractCegarLoop]: Abstraction has 5842 states and 15592 transitions. [2021-05-21 17:31:07,715 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:07,715 INFO L276 IsEmpty]: Start isEmpty. Operand 5842 states and 15592 transitions. [2021-05-21 17:31:07,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:07,719 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:07,719 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:07,719 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-05-21 17:31:07,719 INFO L430 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:07,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:07,719 INFO L82 PathProgramCache]: Analyzing trace with hash -767535632, now seen corresponding path program 82 times [2021-05-21 17:31:07,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:07,719 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214344823] [2021-05-21 17:31:07,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:08,017 INFO 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 17:31:08,017 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:08,017 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214344823] [2021-05-21 17:31:08,017 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214344823] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:08,017 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:08,017 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:08,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130054719] [2021-05-21 17:31:08,017 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:08,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:08,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:08,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:08,018 INFO L87 Difference]: Start difference. First operand 5842 states and 15592 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:08,849 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:09,003 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:31:09,177 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:31:09,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:09,323 INFO L93 Difference]: Finished difference Result 23193 states and 61149 transitions. [2021-05-21 17:31:09,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:09,324 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:09,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:09,343 INFO L225 Difference]: With dead ends: 23193 [2021-05-21 17:31:09,343 INFO L226 Difference]: Without dead ends: 23193 [2021-05-21 17:31:09,344 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1187.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:09,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23193 states. [2021-05-21 17:31:09,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23193 to 5858. [2021-05-21 17:31:09,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5858 states, 5856 states have (on average 2.6704234972677594) internal successors, (15638), 5857 states have internal predecessors, (15638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:09,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 15638 transitions. [2021-05-21 17:31:09,478 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 15638 transitions. Word has length 114 [2021-05-21 17:31:09,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:09,478 INFO L482 AbstractCegarLoop]: Abstraction has 5858 states and 15638 transitions. [2021-05-21 17:31:09,478 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:09,478 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 15638 transitions. [2021-05-21 17:31:09,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:09,482 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:09,482 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] [2021-05-21 17:31:09,482 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-05-21 17:31:09,482 INFO L430 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:09,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:09,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1367938990, now seen corresponding path program 83 times [2021-05-21 17:31:09,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:09,483 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983151016] [2021-05-21 17:31:09,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:09,779 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 17:31:09,779 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:09,779 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983151016] [2021-05-21 17:31:09,779 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983151016] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:09,779 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:09,779 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:09,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454326392] [2021-05-21 17:31:09,779 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:09,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:09,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:09,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:09,780 INFO L87 Difference]: Start difference. First operand 5858 states and 15638 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:10,458 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:31:10,611 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:10,790 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:31:10,958 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:31:11,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:11,097 INFO L93 Difference]: Finished difference Result 22577 states and 59175 transitions. [2021-05-21 17:31:11,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:11,097 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:11,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:11,116 INFO L225 Difference]: With dead ends: 22577 [2021-05-21 17:31:11,116 INFO L226 Difference]: Without dead ends: 22577 [2021-05-21 17:31:11,116 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1209.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:11,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22577 states. [2021-05-21 17:31:11,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22577 to 5810. [2021-05-21 17:31:11,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.668732782369146) internal successors, (15500), 5809 states have internal predecessors, (15500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:11,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15500 transitions. [2021-05-21 17:31:11,243 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15500 transitions. Word has length 114 [2021-05-21 17:31:11,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:11,243 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15500 transitions. [2021-05-21 17:31:11,243 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:11,243 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15500 transitions. [2021-05-21 17:31:11,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:11,247 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:11,247 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:11,247 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-05-21 17:31:11,247 INFO L430 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:11,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:11,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1235377614, now seen corresponding path program 84 times [2021-05-21 17:31:11,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:11,248 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242087056] [2021-05-21 17:31:11,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:11,547 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 17:31:11,548 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:11,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242087056] [2021-05-21 17:31:11,548 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242087056] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:11,548 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:11,548 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:11,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796826793] [2021-05-21 17:31:11,548 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:11,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:11,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:11,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:11,549 INFO L87 Difference]: Start difference. First operand 5810 states and 15500 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:12,351 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:31:12,521 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:31:12,696 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:31:12,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:12,837 INFO L93 Difference]: Finished difference Result 19337 states and 50928 transitions. [2021-05-21 17:31:12,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:12,837 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:12,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:12,854 INFO L225 Difference]: With dead ends: 19337 [2021-05-21 17:31:12,854 INFO L226 Difference]: Without dead ends: 19337 [2021-05-21 17:31:12,855 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1167.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:12,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19337 states. [2021-05-21 17:31:12,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19337 to 5782. [2021-05-21 17:31:12,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5782 states, 5780 states have (on average 2.6674740484429065) internal successors, (15418), 5781 states have internal predecessors, (15418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:12,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5782 states to 5782 states and 15418 transitions. [2021-05-21 17:31:12,971 INFO L78 Accepts]: Start accepts. Automaton has 5782 states and 15418 transitions. Word has length 114 [2021-05-21 17:31:12,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:12,971 INFO L482 AbstractCegarLoop]: Abstraction has 5782 states and 15418 transitions. [2021-05-21 17:31:12,971 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:12,972 INFO L276 IsEmpty]: Start isEmpty. Operand 5782 states and 15418 transitions. [2021-05-21 17:31:12,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:12,975 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:12,976 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:12,976 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-05-21 17:31:12,976 INFO L430 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:12,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:12,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1748073490, now seen corresponding path program 85 times [2021-05-21 17:31:12,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:12,976 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810453833] [2021-05-21 17:31:12,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:13,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:31:13,297 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:13,297 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810453833] [2021-05-21 17:31:13,297 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810453833] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:13,297 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:13,297 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:13,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347952451] [2021-05-21 17:31:13,298 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:13,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:13,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:13,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:13,298 INFO L87 Difference]: Start difference. First operand 5782 states and 15418 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:13,998 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:31:14,132 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:31:14,302 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:31:14,480 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:31:14,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:14,630 INFO L93 Difference]: Finished difference Result 19099 states and 50265 transitions. [2021-05-21 17:31:14,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:14,630 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:14,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:14,647 INFO L225 Difference]: With dead ends: 19099 [2021-05-21 17:31:14,647 INFO L226 Difference]: Without dead ends: 19099 [2021-05-21 17:31:14,647 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1167.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:14,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19099 states. [2021-05-21 17:31:14,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19099 to 5910. [2021-05-21 17:31:14,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.671970209884902) internal successors, (15786), 5909 states have internal predecessors, (15786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:14,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15786 transitions. [2021-05-21 17:31:14,761 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15786 transitions. Word has length 114 [2021-05-21 17:31:14,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:14,761 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15786 transitions. [2021-05-21 17:31:14,761 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:14,761 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15786 transitions. [2021-05-21 17:31:14,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:14,765 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:14,765 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, 1] [2021-05-21 17:31:14,766 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-05-21 17:31:14,766 INFO L430 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:14,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:14,766 INFO L82 PathProgramCache]: Analyzing trace with hash 165163246, now seen corresponding path program 86 times [2021-05-21 17:31:14,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:14,766 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356474621] [2021-05-21 17:31:14,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:15,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:31:15,048 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:15,048 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356474621] [2021-05-21 17:31:15,048 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356474621] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:15,048 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:15,048 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:15,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359661125] [2021-05-21 17:31:15,049 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:15,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:15,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:15,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:15,049 INFO L87 Difference]: Start difference. First operand 5910 states and 15786 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:15,616 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-05-21 17:31:15,746 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:31:15,899 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:16,054 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:31:16,233 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:31:16,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:16,380 INFO L93 Difference]: Finished difference Result 21723 states and 56988 transitions. [2021-05-21 17:31:16,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:16,380 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:16,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:16,401 INFO L225 Difference]: With dead ends: 21723 [2021-05-21 17:31:16,401 INFO L226 Difference]: Without dead ends: 21723 [2021-05-21 17:31:16,401 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1196.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:16,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21723 states. [2021-05-21 17:31:16,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21723 to 5926. [2021-05-21 17:31:16,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5924 states have (on average 2.6725185685347737) internal successors, (15832), 5925 states have internal predecessors, (15832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:16,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 15832 transitions. [2021-05-21 17:31:16,537 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 15832 transitions. Word has length 114 [2021-05-21 17:31:16,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:16,537 INFO L482 AbstractCegarLoop]: Abstraction has 5926 states and 15832 transitions. [2021-05-21 17:31:16,537 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:16,537 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 15832 transitions. [2021-05-21 17:31:16,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:16,542 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:16,542 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:16,542 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-05-21 17:31:16,542 INFO L430 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:16,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:16,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1994329428, now seen corresponding path program 87 times [2021-05-21 17:31:16,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:16,542 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160596162] [2021-05-21 17:31:16,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:16,838 INFO 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 17:31:16,838 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:16,838 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160596162] [2021-05-21 17:31:16,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160596162] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:16,838 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:16,838 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:16,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491071732] [2021-05-21 17:31:16,838 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:16,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:16,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:16,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:16,839 INFO L87 Difference]: Start difference. First operand 5926 states and 15832 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:17,686 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:17,850 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:31:18,023 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:31:18,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:18,195 INFO L93 Difference]: Finished difference Result 20003 states and 52276 transitions. [2021-05-21 17:31:18,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:18,195 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:18,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:18,208 INFO L225 Difference]: With dead ends: 20003 [2021-05-21 17:31:18,208 INFO L226 Difference]: Without dead ends: 20003 [2021-05-21 17:31:18,208 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1176.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:18,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20003 states. [2021-05-21 17:31:18,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20003 to 5878. [2021-05-21 17:31:18,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5876 states have (on average 2.6708645336963923) internal successors, (15694), 5877 states have internal predecessors, (15694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:18,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 15694 transitions. [2021-05-21 17:31:18,307 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 15694 transitions. Word has length 114 [2021-05-21 17:31:18,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:18,307 INFO L482 AbstractCegarLoop]: Abstraction has 5878 states and 15694 transitions. [2021-05-21 17:31:18,308 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:18,308 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 15694 transitions. [2021-05-21 17:31:18,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:18,312 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:18,312 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:18,312 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-05-21 17:31:18,312 INFO L430 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:18,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:18,321 INFO L82 PathProgramCache]: Analyzing trace with hash 486909870, now seen corresponding path program 88 times [2021-05-21 17:31:18,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:18,321 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109345926] [2021-05-21 17:31:18,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:18,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:31:18,592 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:18,592 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109345926] [2021-05-21 17:31:18,592 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109345926] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:18,592 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:18,592 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:18,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437586206] [2021-05-21 17:31:18,592 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:18,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:18,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:18,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:18,593 INFO L87 Difference]: Start difference. First operand 5878 states and 15694 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:19,423 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:19,577 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:31:19,750 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:31:19,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:19,906 INFO L93 Difference]: Finished difference Result 23079 states and 60205 transitions. [2021-05-21 17:31:19,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:19,906 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:19,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:19,925 INFO L225 Difference]: With dead ends: 23079 [2021-05-21 17:31:19,925 INFO L226 Difference]: Without dead ends: 23079 [2021-05-21 17:31:19,925 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1140.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:19,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23079 states. [2021-05-21 17:31:20,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23079 to 5910. [2021-05-21 17:31:20,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.671970209884902) internal successors, (15786), 5909 states have internal predecessors, (15786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:20,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15786 transitions. [2021-05-21 17:31:20,052 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15786 transitions. Word has length 114 [2021-05-21 17:31:20,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:20,052 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15786 transitions. [2021-05-21 17:31:20,052 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:20,052 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15786 transitions. [2021-05-21 17:31:20,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:20,056 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:20,056 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:20,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-05-21 17:31:20,056 INFO L430 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:20,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:20,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1672582804, now seen corresponding path program 89 times [2021-05-21 17:31:20,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:20,056 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948828929] [2021-05-21 17:31:20,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:20,327 INFO 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 17:31:20,327 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:20,327 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948828929] [2021-05-21 17:31:20,327 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948828929] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:20,327 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:20,328 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:20,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979120223] [2021-05-21 17:31:20,328 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:20,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:20,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:20,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:20,328 INFO L87 Difference]: Start difference. First operand 5910 states and 15786 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:21,177 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:21,344 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:31:21,514 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:31:21,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:21,676 INFO L93 Difference]: Finished difference Result 23925 states and 62065 transitions. [2021-05-21 17:31:21,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:21,677 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:21,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:21,696 INFO L225 Difference]: With dead ends: 23925 [2021-05-21 17:31:21,696 INFO L226 Difference]: Without dead ends: 23925 [2021-05-21 17:31:21,697 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1169.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:21,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23925 states. [2021-05-21 17:31:21,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23925 to 5894. [2021-05-21 17:31:21,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5894 states, 5892 states have (on average 2.671418873048201) internal successors, (15740), 5893 states have internal predecessors, (15740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:21,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5894 states to 5894 states and 15740 transitions. [2021-05-21 17:31:21,827 INFO L78 Accepts]: Start accepts. Automaton has 5894 states and 15740 transitions. Word has length 114 [2021-05-21 17:31:21,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:21,827 INFO L482 AbstractCegarLoop]: Abstraction has 5894 states and 15740 transitions. [2021-05-21 17:31:21,828 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:21,828 INFO L276 IsEmpty]: Start isEmpty. Operand 5894 states and 15740 transitions. [2021-05-21 17:31:21,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:21,832 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:21,832 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:21,832 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-05-21 17:31:21,832 INFO L430 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:21,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:21,832 INFO L82 PathProgramCache]: Analyzing trace with hash -874719344, now seen corresponding path program 90 times [2021-05-21 17:31:21,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:21,832 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713855838] [2021-05-21 17:31:21,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:22,112 INFO 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 17:31:22,112 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:22,112 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713855838] [2021-05-21 17:31:22,112 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713855838] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:22,112 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:22,112 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:22,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626294706] [2021-05-21 17:31:22,113 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:22,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:22,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:22,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:22,113 INFO L87 Difference]: Start difference. First operand 5894 states and 15740 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:22,922 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:23,094 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:31:23,263 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:31:23,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:23,405 INFO L93 Difference]: Finished difference Result 23225 states and 60436 transitions. [2021-05-21 17:31:23,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:23,406 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:23,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:23,425 INFO L225 Difference]: With dead ends: 23225 [2021-05-21 17:31:23,426 INFO L226 Difference]: Without dead ends: 23225 [2021-05-21 17:31:23,426 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1172.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:23,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23225 states. [2021-05-21 17:31:23,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23225 to 5910. [2021-05-21 17:31:23,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.671970209884902) internal successors, (15786), 5909 states have internal predecessors, (15786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:23,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15786 transitions. [2021-05-21 17:31:23,558 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15786 transitions. Word has length 114 [2021-05-21 17:31:23,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:23,558 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15786 transitions. [2021-05-21 17:31:23,558 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:23,558 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15786 transitions. [2021-05-21 17:31:23,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:23,563 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:23,563 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:23,563 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-05-21 17:31:23,563 INFO L430 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:23,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:23,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1123266324, now seen corresponding path program 91 times [2021-05-21 17:31:23,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:23,563 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499830454] [2021-05-21 17:31:23,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:23,838 INFO 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 17:31:23,838 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:23,838 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499830454] [2021-05-21 17:31:23,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499830454] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:23,838 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:23,838 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:23,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960080552] [2021-05-21 17:31:23,838 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:23,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:23,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:23,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:23,839 INFO L87 Difference]: Start difference. First operand 5910 states and 15786 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:24,673 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:24,829 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:31:25,005 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:31:25,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:25,143 INFO L93 Difference]: Finished difference Result 20183 states and 52774 transitions. [2021-05-21 17:31:25,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:25,143 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:25,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:25,161 INFO L225 Difference]: With dead ends: 20183 [2021-05-21 17:31:25,161 INFO L226 Difference]: Without dead ends: 20183 [2021-05-21 17:31:25,161 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1155.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:25,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20183 states. [2021-05-21 17:31:25,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20183 to 5846. [2021-05-21 17:31:25,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5846 states, 5844 states have (on average 2.6697467488021904) internal successors, (15602), 5845 states have internal predecessors, (15602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:25,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5846 states to 5846 states and 15602 transitions. [2021-05-21 17:31:25,281 INFO L78 Accepts]: Start accepts. Automaton has 5846 states and 15602 transitions. Word has length 114 [2021-05-21 17:31:25,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:25,281 INFO L482 AbstractCegarLoop]: Abstraction has 5846 states and 15602 transitions. [2021-05-21 17:31:25,281 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:25,281 INFO L276 IsEmpty]: Start isEmpty. Operand 5846 states and 15602 transitions. [2021-05-21 17:31:25,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:25,285 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:25,285 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:25,285 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-05-21 17:31:25,285 INFO L430 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:25,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:25,285 INFO L82 PathProgramCache]: Analyzing trace with hash 351707696, now seen corresponding path program 92 times [2021-05-21 17:31:25,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:25,285 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57656352] [2021-05-21 17:31:25,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:25,579 INFO 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 17:31:25,579 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:25,579 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57656352] [2021-05-21 17:31:25,579 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57656352] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:25,579 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:25,579 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:25,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901485387] [2021-05-21 17:31:25,580 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:25,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:25,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:25,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:25,580 INFO L87 Difference]: Start difference. First operand 5846 states and 15602 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:26,299 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:31:26,439 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:26,594 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:31:26,768 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:31:26,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:26,912 INFO L93 Difference]: Finished difference Result 18659 states and 49039 transitions. [2021-05-21 17:31:26,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:26,912 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:26,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:26,929 INFO L225 Difference]: With dead ends: 18659 [2021-05-21 17:31:26,929 INFO L226 Difference]: Without dead ends: 18659 [2021-05-21 17:31:26,929 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1188.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:26,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18659 states. [2021-05-21 17:31:27,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18659 to 5910. [2021-05-21 17:31:27,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.671970209884902) internal successors, (15786), 5909 states have internal predecessors, (15786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:27,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15786 transitions. [2021-05-21 17:31:27,040 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15786 transitions. Word has length 114 [2021-05-21 17:31:27,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:27,040 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15786 transitions. [2021-05-21 17:31:27,040 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:27,040 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15786 transitions. [2021-05-21 17:31:27,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:27,044 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:27,044 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:27,044 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-05-21 17:31:27,044 INFO L430 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:27,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:27,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1807784978, now seen corresponding path program 93 times [2021-05-21 17:31:27,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:27,045 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248376543] [2021-05-21 17:31:27,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:27,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:31:27,334 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:27,334 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248376543] [2021-05-21 17:31:27,334 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248376543] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:27,334 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:27,334 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:27,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506662371] [2021-05-21 17:31:27,335 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:27,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:27,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:27,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:27,335 INFO L87 Difference]: Start difference. First operand 5910 states and 15786 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:28,165 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:28,328 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:31:28,496 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:31:28,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:28,629 INFO L93 Difference]: Finished difference Result 19505 states and 50899 transitions. [2021-05-21 17:31:28,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:28,629 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:28,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:28,646 INFO L225 Difference]: With dead ends: 19505 [2021-05-21 17:31:28,646 INFO L226 Difference]: Without dead ends: 19505 [2021-05-21 17:31:28,647 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1189.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:28,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19505 states. [2021-05-21 17:31:28,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19505 to 5894. [2021-05-21 17:31:28,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5894 states, 5892 states have (on average 2.671418873048201) internal successors, (15740), 5893 states have internal predecessors, (15740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:28,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5894 states to 5894 states and 15740 transitions. [2021-05-21 17:31:28,763 INFO L78 Accepts]: Start accepts. Automaton has 5894 states and 15740 transitions. Word has length 114 [2021-05-21 17:31:28,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:28,763 INFO L482 AbstractCegarLoop]: Abstraction has 5894 states and 15740 transitions. [2021-05-21 17:31:28,764 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:28,764 INFO L276 IsEmpty]: Start isEmpty. Operand 5894 states and 15740 transitions. [2021-05-21 17:31:28,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:28,768 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:28,768 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:28,768 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-05-21 17:31:28,768 INFO L430 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:28,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:28,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1009921518, now seen corresponding path program 94 times [2021-05-21 17:31:28,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:28,768 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049741473] [2021-05-21 17:31:28,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:29,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:31:29,041 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:29,041 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049741473] [2021-05-21 17:31:29,041 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049741473] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:29,041 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:29,041 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:29,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046728582] [2021-05-21 17:31:29,042 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:29,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:29,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:29,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:29,042 INFO L87 Difference]: Start difference. First operand 5894 states and 15740 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:29,848 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:30,008 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:31:30,174 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:31:30,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:30,314 INFO L93 Difference]: Finished difference Result 22711 states and 59013 transitions. [2021-05-21 17:31:30,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:30,314 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:30,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:30,333 INFO L225 Difference]: With dead ends: 22711 [2021-05-21 17:31:30,333 INFO L226 Difference]: Without dead ends: 22711 [2021-05-21 17:31:30,333 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1158.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:30,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22711 states. [2021-05-21 17:31:30,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22711 to 5910. [2021-05-21 17:31:30,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.671970209884902) internal successors, (15786), 5909 states have internal predecessors, (15786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:30,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15786 transitions. [2021-05-21 17:31:30,480 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15786 transitions. Word has length 114 [2021-05-21 17:31:30,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:30,480 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15786 transitions. [2021-05-21 17:31:30,480 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:30,480 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15786 transitions. [2021-05-21 17:31:30,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:30,484 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:30,484 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:30,484 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-05-21 17:31:30,485 INFO L430 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:30,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:30,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1258468498, now seen corresponding path program 95 times [2021-05-21 17:31:30,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:30,485 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646711636] [2021-05-21 17:31:30,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:30,768 INFO 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 17:31:30,768 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:30,769 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646711636] [2021-05-21 17:31:30,769 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646711636] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:30,769 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:30,769 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:30,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618890674] [2021-05-21 17:31:30,769 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:30,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:30,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:30,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:30,769 INFO L87 Difference]: Start difference. First operand 5910 states and 15786 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:31,462 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:31:31,605 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:31,760 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:31:31,933 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:31:32,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:32,067 INFO L93 Difference]: Finished difference Result 19669 states and 51351 transitions. [2021-05-21 17:31:32,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:32,067 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:32,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:32,084 INFO L225 Difference]: With dead ends: 19669 [2021-05-21 17:31:32,084 INFO L226 Difference]: Without dead ends: 19669 [2021-05-21 17:31:32,084 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1160.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:32,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19669 states. [2021-05-21 17:31:32,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19669 to 5878. [2021-05-21 17:31:32,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5876 states have (on average 2.6708645336963923) internal successors, (15694), 5877 states have internal predecessors, (15694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:32,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 15694 transitions. [2021-05-21 17:31:32,202 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 15694 transitions. Word has length 114 [2021-05-21 17:31:32,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:32,202 INFO L482 AbstractCegarLoop]: Abstraction has 5878 states and 15694 transitions. [2021-05-21 17:31:32,202 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:32,202 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 15694 transitions. [2021-05-21 17:31:32,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:32,206 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:32,207 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:32,207 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-05-21 17:31:32,207 INFO L430 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:32,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:32,207 INFO L82 PathProgramCache]: Analyzing trace with hash 2016228492, now seen corresponding path program 96 times [2021-05-21 17:31:32,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:32,207 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692589900] [2021-05-21 17:31:32,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:32,495 INFO 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 17:31:32,496 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:32,496 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692589900] [2021-05-21 17:31:32,496 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692589900] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:32,496 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:32,496 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:32,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653263113] [2021-05-21 17:31:32,496 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:32,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:32,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:32,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:32,497 INFO L87 Difference]: Start difference. First operand 5878 states and 15694 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:33,207 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:31:33,362 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:33,530 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:31:33,706 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:31:33,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:33,855 INFO L93 Difference]: Finished difference Result 18789 states and 49224 transitions. [2021-05-21 17:31:33,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:33,855 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:33,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:33,873 INFO L225 Difference]: With dead ends: 18789 [2021-05-21 17:31:33,873 INFO L226 Difference]: Without dead ends: 18789 [2021-05-21 17:31:33,873 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1194.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:33,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18789 states. [2021-05-21 17:31:33,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18789 to 5926. [2021-05-21 17:31:33,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5924 states have (on average 2.6725185685347737) internal successors, (15832), 5925 states have internal predecessors, (15832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:33,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 15832 transitions. [2021-05-21 17:31:33,996 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 15832 transitions. Word has length 114 [2021-05-21 17:31:33,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:33,996 INFO L482 AbstractCegarLoop]: Abstraction has 5926 states and 15832 transitions. [2021-05-21 17:31:33,997 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:33,997 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 15832 transitions. [2021-05-21 17:31:34,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:34,001 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:34,001 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:34,001 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-05-21 17:31:34,001 INFO L430 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:34,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:34,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1767681512, now seen corresponding path program 97 times [2021-05-21 17:31:34,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:34,002 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293890809] [2021-05-21 17:31:34,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:34,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:34,304 INFO 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 17:31:34,304 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:34,304 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293890809] [2021-05-21 17:31:34,304 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293890809] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:34,304 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:34,304 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:34,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331513837] [2021-05-21 17:31:34,305 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:34,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:34,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:34,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:34,305 INFO L87 Difference]: Start difference. First operand 5926 states and 15832 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:34,973 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:31:35,122 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:35,275 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:31:35,463 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:31:35,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:35,585 INFO L93 Difference]: Finished difference Result 18625 states and 48822 transitions. [2021-05-21 17:31:35,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:35,585 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:35,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:35,601 INFO L225 Difference]: With dead ends: 18625 [2021-05-21 17:31:35,601 INFO L226 Difference]: Without dead ends: 18625 [2021-05-21 17:31:35,602 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1197.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:35,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18625 states. [2021-05-21 17:31:35,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18625 to 5910. [2021-05-21 17:31:35,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.671970209884902) internal successors, (15786), 5909 states have internal predecessors, (15786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:35,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15786 transitions. [2021-05-21 17:31:35,714 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15786 transitions. Word has length 114 [2021-05-21 17:31:35,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:35,714 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15786 transitions. [2021-05-21 17:31:35,714 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:35,714 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15786 transitions. [2021-05-21 17:31:35,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:35,718 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:35,718 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:35,718 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-05-21 17:31:35,718 INFO L430 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:35,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:35,718 INFO L82 PathProgramCache]: Analyzing trace with hash 610864208, now seen corresponding path program 98 times [2021-05-21 17:31:35,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:35,719 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352828620] [2021-05-21 17:31:35,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:36,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:31:36,004 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:36,004 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352828620] [2021-05-21 17:31:36,004 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352828620] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:36,004 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:36,005 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:36,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186897224] [2021-05-21 17:31:36,005 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:36,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:36,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:36,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:36,005 INFO L87 Difference]: Start difference. First operand 5910 states and 15786 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:36,674 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:31:36,805 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:31:36,968 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:31:37,143 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:31:37,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:37,272 INFO L93 Difference]: Finished difference Result 15983 states and 42144 transitions. [2021-05-21 17:31:37,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:37,272 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:37,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:37,287 INFO L225 Difference]: With dead ends: 15983 [2021-05-21 17:31:37,287 INFO L226 Difference]: Without dead ends: 15983 [2021-05-21 17:31:37,287 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1162.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:37,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15983 states. [2021-05-21 17:31:37,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15983 to 5794. [2021-05-21 17:31:37,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5794 states, 5792 states have (on average 2.6650552486187844) internal successors, (15436), 5793 states have internal predecessors, (15436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:37,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5794 states to 5794 states and 15436 transitions. [2021-05-21 17:31:37,392 INFO L78 Accepts]: Start accepts. Automaton has 5794 states and 15436 transitions. Word has length 114 [2021-05-21 17:31:37,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:37,392 INFO L482 AbstractCegarLoop]: Abstraction has 5794 states and 15436 transitions. [2021-05-21 17:31:37,392 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:37,392 INFO L276 IsEmpty]: Start isEmpty. Operand 5794 states and 15436 transitions. [2021-05-21 17:31:37,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:37,396 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:37,397 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:37,397 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-05-21 17:31:37,397 INFO L430 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:37,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:37,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1755420304, now seen corresponding path program 99 times [2021-05-21 17:31:37,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:37,397 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324207461] [2021-05-21 17:31:37,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:37,688 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 17:31:37,688 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:37,688 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324207461] [2021-05-21 17:31:37,688 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324207461] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:37,688 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:37,688 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:37,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563898420] [2021-05-21 17:31:37,688 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:37,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:37,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:37,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:37,689 INFO L87 Difference]: Start difference. First operand 5794 states and 15436 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:38,497 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:31:38,660 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:31:38,832 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:31:38,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:38,974 INFO L93 Difference]: Finished difference Result 18795 states and 49439 transitions. [2021-05-21 17:31:38,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:38,975 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:38,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:38,992 INFO L225 Difference]: With dead ends: 18795 [2021-05-21 17:31:38,992 INFO L226 Difference]: Without dead ends: 18795 [2021-05-21 17:31:38,993 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1169.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:39,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18795 states. [2021-05-21 17:31:39,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18795 to 5890. [2021-05-21 17:31:39,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5890 states, 5888 states have (on average 2.6684782608695654) internal successors, (15712), 5889 states have internal predecessors, (15712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:39,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5890 states to 5890 states and 15712 transitions. [2021-05-21 17:31:39,107 INFO L78 Accepts]: Start accepts. Automaton has 5890 states and 15712 transitions. Word has length 114 [2021-05-21 17:31:39,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:39,107 INFO L482 AbstractCegarLoop]: Abstraction has 5890 states and 15712 transitions. [2021-05-21 17:31:39,108 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:39,108 INFO L276 IsEmpty]: Start isEmpty. Operand 5890 states and 15712 transitions. [2021-05-21 17:31:39,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:39,111 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:39,112 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] [2021-05-21 17:31:39,112 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-05-21 17:31:39,112 INFO L430 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:39,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:39,112 INFO L82 PathProgramCache]: Analyzing trace with hash -626310256, now seen corresponding path program 100 times [2021-05-21 17:31:39,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:39,112 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631225040] [2021-05-21 17:31:39,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:39,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:31:39,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:39,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631225040] [2021-05-21 17:31:39,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631225040] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:39,390 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:39,390 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:39,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301858892] [2021-05-21 17:31:39,390 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:39,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:39,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:39,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:39,391 INFO L87 Difference]: Start difference. First operand 5890 states and 15712 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:40,209 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:40,374 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:31:40,546 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:31:40,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:40,689 INFO L93 Difference]: Finished difference Result 21419 states and 56162 transitions. [2021-05-21 17:31:40,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:40,689 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:40,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:40,707 INFO L225 Difference]: With dead ends: 21419 [2021-05-21 17:31:40,707 INFO L226 Difference]: Without dead ends: 21419 [2021-05-21 17:31:40,708 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1173.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:40,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21419 states. [2021-05-21 17:31:40,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21419 to 5906. [2021-05-21 17:31:40,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5906 states, 5904 states have (on average 2.669037940379404) internal successors, (15758), 5905 states have internal predecessors, (15758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:40,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5906 states to 5906 states and 15758 transitions. [2021-05-21 17:31:40,829 INFO L78 Accepts]: Start accepts. Automaton has 5906 states and 15758 transitions. Word has length 114 [2021-05-21 17:31:40,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:40,830 INFO L482 AbstractCegarLoop]: Abstraction has 5906 states and 15758 transitions. [2021-05-21 17:31:40,830 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:40,830 INFO L276 IsEmpty]: Start isEmpty. Operand 5906 states and 15758 transitions. [2021-05-21 17:31:40,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:40,834 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:40,834 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:40,834 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-05-21 17:31:40,834 INFO L430 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:40,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:40,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1509164366, now seen corresponding path program 101 times [2021-05-21 17:31:40,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:40,834 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642805612] [2021-05-21 17:31:40,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:41,118 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 17:31:41,118 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:41,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642805612] [2021-05-21 17:31:41,118 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642805612] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:41,118 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:41,118 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:41,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867934714] [2021-05-21 17:31:41,118 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:41,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:41,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:41,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:41,119 INFO L87 Difference]: Start difference. First operand 5906 states and 15758 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:41,924 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:42,089 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:31:42,256 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:31:42,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:42,394 INFO L93 Difference]: Finished difference Result 19699 states and 51450 transitions. [2021-05-21 17:31:42,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:42,394 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:42,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:42,411 INFO L225 Difference]: With dead ends: 19699 [2021-05-21 17:31:42,411 INFO L226 Difference]: Without dead ends: 19699 [2021-05-21 17:31:42,411 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1165.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:42,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19699 states. [2021-05-21 17:31:42,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19699 to 5858. [2021-05-21 17:31:42,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5858 states, 5856 states have (on average 2.6673497267759565) internal successors, (15620), 5857 states have internal predecessors, (15620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:42,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 15620 transitions. [2021-05-21 17:31:42,527 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 15620 transitions. Word has length 114 [2021-05-21 17:31:42,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:42,527 INFO L482 AbstractCegarLoop]: Abstraction has 5858 states and 15620 transitions. [2021-05-21 17:31:42,527 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:42,527 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 15620 transitions. [2021-05-21 17:31:42,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:42,531 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:42,531 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:42,531 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-05-21 17:31:42,532 INFO L430 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:42,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:42,532 INFO L82 PathProgramCache]: Analyzing trace with hash -304563632, now seen corresponding path program 102 times [2021-05-21 17:31:42,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:42,532 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684785675] [2021-05-21 17:31:42,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:42,823 INFO 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 17:31:42,823 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:42,823 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684785675] [2021-05-21 17:31:42,823 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684785675] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:42,823 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:42,823 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:42,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291788713] [2021-05-21 17:31:42,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:42,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:42,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:42,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:42,824 INFO L87 Difference]: Start difference. First operand 5858 states and 15620 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:43,488 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:31:43,629 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:43,779 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:31:43,948 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:31:44,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:44,088 INFO L93 Difference]: Finished difference Result 18899 states and 49597 transitions. [2021-05-21 17:31:44,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:44,088 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:44,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:44,104 INFO L225 Difference]: With dead ends: 18899 [2021-05-21 17:31:44,105 INFO L226 Difference]: Without dead ends: 18899 [2021-05-21 17:31:44,105 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1143.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:44,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18899 states. [2021-05-21 17:31:44,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18899 to 5890. [2021-05-21 17:31:44,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5890 states, 5888 states have (on average 2.6684782608695654) internal successors, (15712), 5889 states have internal predecessors, (15712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:44,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5890 states to 5890 states and 15712 transitions. [2021-05-21 17:31:44,227 INFO L78 Accepts]: Start accepts. Automaton has 5890 states and 15712 transitions. Word has length 114 [2021-05-21 17:31:44,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:44,227 INFO L482 AbstractCegarLoop]: Abstraction has 5890 states and 15712 transitions. [2021-05-21 17:31:44,227 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:44,227 INFO L276 IsEmpty]: Start isEmpty. Operand 5890 states and 15712 transitions. [2021-05-21 17:31:44,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:44,231 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:44,231 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] [2021-05-21 17:31:44,231 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-05-21 17:31:44,231 INFO L430 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:44,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:44,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1830910990, now seen corresponding path program 103 times [2021-05-21 17:31:44,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:44,233 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745777909] [2021-05-21 17:31:44,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:44,512 INFO 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 17:31:44,512 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:44,512 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745777909] [2021-05-21 17:31:44,512 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745777909] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:44,512 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:44,512 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:44,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746997380] [2021-05-21 17:31:44,513 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:44,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:44,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:44,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:44,513 INFO L87 Difference]: Start difference. First operand 5890 states and 15712 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:45,209 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:31:45,346 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:45,511 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:31:45,678 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:31:45,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:45,834 INFO L93 Difference]: Finished difference Result 19745 states and 51457 transitions. [2021-05-21 17:31:45,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:45,834 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:45,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:45,851 INFO L225 Difference]: With dead ends: 19745 [2021-05-21 17:31:45,851 INFO L226 Difference]: Without dead ends: 19745 [2021-05-21 17:31:45,851 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1165.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:45,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19745 states. [2021-05-21 17:31:45,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19745 to 5874. [2021-05-21 17:31:45,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5874 states, 5872 states have (on average 2.66791553133515) internal successors, (15666), 5873 states have internal predecessors, (15666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:45,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5874 states to 5874 states and 15666 transitions. [2021-05-21 17:31:45,964 INFO L78 Accepts]: Start accepts. Automaton has 5874 states and 15666 transitions. Word has length 114 [2021-05-21 17:31:45,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:45,964 INFO L482 AbstractCegarLoop]: Abstraction has 5874 states and 15666 transitions. [2021-05-21 17:31:45,964 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:45,964 INFO L276 IsEmpty]: Start isEmpty. Operand 5874 states and 15666 transitions. [2021-05-21 17:31:45,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:45,968 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:45,968 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, 1] [2021-05-21 17:31:45,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-05-21 17:31:45,968 INFO L430 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:45,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:45,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1666192846, now seen corresponding path program 104 times [2021-05-21 17:31:45,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:45,969 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492212049] [2021-05-21 17:31:45,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:46,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:31:46,237 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:46,237 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492212049] [2021-05-21 17:31:46,237 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492212049] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:46,237 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:46,237 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:46,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887457136] [2021-05-21 17:31:46,237 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:46,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:46,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:46,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:46,238 INFO L87 Difference]: Start difference. First operand 5874 states and 15666 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:47,059 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:47,221 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:31:47,392 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:31:47,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:47,542 INFO L93 Difference]: Finished difference Result 19045 states and 49828 transitions. [2021-05-21 17:31:47,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:47,542 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:47,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:47,558 INFO L225 Difference]: With dead ends: 19045 [2021-05-21 17:31:47,559 INFO L226 Difference]: Without dead ends: 19045 [2021-05-21 17:31:47,559 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1151.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:47,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19045 states. [2021-05-21 17:31:47,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19045 to 5890. [2021-05-21 17:31:47,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5890 states, 5888 states have (on average 2.6684782608695654) internal successors, (15712), 5889 states have internal predecessors, (15712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:47,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5890 states to 5890 states and 15712 transitions. [2021-05-21 17:31:47,683 INFO L78 Accepts]: Start accepts. Automaton has 5890 states and 15712 transitions. Word has length 114 [2021-05-21 17:31:47,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:47,683 INFO L482 AbstractCegarLoop]: Abstraction has 5890 states and 15712 transitions. [2021-05-21 17:31:47,683 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:47,683 INFO L276 IsEmpty]: Start isEmpty. Operand 5890 states and 15712 transitions. [2021-05-21 17:31:47,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:47,687 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:47,687 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:47,687 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-05-21 17:31:47,687 INFO L430 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:47,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:47,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1914739826, now seen corresponding path program 105 times [2021-05-21 17:31:47,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:47,687 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232477855] [2021-05-21 17:31:47,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:47,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:47,956 INFO 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 17:31:47,956 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:47,956 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232477855] [2021-05-21 17:31:47,956 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232477855] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:47,956 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:47,957 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:47,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411302437] [2021-05-21 17:31:47,957 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:47,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:47,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:47,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:47,957 INFO L87 Difference]: Start difference. First operand 5890 states and 15712 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:48,638 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:31:48,777 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:48,929 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:31:49,100 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:31:49,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:49,227 INFO L93 Difference]: Finished difference Result 16303 states and 42916 transitions. [2021-05-21 17:31:49,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:49,228 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:49,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:49,241 INFO L225 Difference]: With dead ends: 16303 [2021-05-21 17:31:49,241 INFO L226 Difference]: Without dead ends: 16303 [2021-05-21 17:31:49,241 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1163.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:49,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16303 states. [2021-05-21 17:31:49,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16303 to 5826. [2021-05-21 17:31:49,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5824 states have (on average 2.666208791208791) internal successors, (15528), 5825 states have internal predecessors, (15528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:49,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 15528 transitions. [2021-05-21 17:31:49,337 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 15528 transitions. Word has length 114 [2021-05-21 17:31:49,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:49,337 INFO L482 AbstractCegarLoop]: Abstraction has 5826 states and 15528 transitions. [2021-05-21 17:31:49,337 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:49,337 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 15528 transitions. [2021-05-21 17:31:49,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:49,341 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:49,341 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:49,341 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-05-21 17:31:49,341 INFO L430 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:49,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:49,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1660742066, now seen corresponding path program 106 times [2021-05-21 17:31:49,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:49,342 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986511451] [2021-05-21 17:31:49,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:49,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:31:49,641 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:49,641 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986511451] [2021-05-21 17:31:49,641 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986511451] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:49,641 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:49,641 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:49,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305357831] [2021-05-21 17:31:49,641 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:49,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:49,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:49,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:49,642 INFO L87 Difference]: Start difference. First operand 5826 states and 15528 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:50,463 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:31:50,635 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:31:50,811 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:31:50,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:50,966 INFO L93 Difference]: Finished difference Result 21717 states and 57027 transitions. [2021-05-21 17:31:50,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:50,966 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:50,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:50,984 INFO L225 Difference]: With dead ends: 21717 [2021-05-21 17:31:50,985 INFO L226 Difference]: Without dead ends: 21717 [2021-05-21 17:31:50,985 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1173.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:51,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21717 states. [2021-05-21 17:31:51,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21717 to 5874. [2021-05-21 17:31:51,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5874 states, 5872 states have (on average 2.66791553133515) internal successors, (15666), 5873 states have internal predecessors, (15666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:51,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5874 states to 5874 states and 15666 transitions. [2021-05-21 17:31:51,108 INFO L78 Accepts]: Start accepts. Automaton has 5874 states and 15666 transitions. Word has length 114 [2021-05-21 17:31:51,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:51,108 INFO L482 AbstractCegarLoop]: Abstraction has 5874 states and 15666 transitions. [2021-05-21 17:31:51,108 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:51,108 INFO L276 IsEmpty]: Start isEmpty. Operand 5874 states and 15666 transitions. [2021-05-21 17:31:51,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:51,112 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:51,112 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] [2021-05-21 17:31:51,112 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-05-21 17:31:51,112 INFO L430 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:51,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:51,112 INFO L82 PathProgramCache]: Analyzing trace with hash -720988494, now seen corresponding path program 107 times [2021-05-21 17:31:51,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:51,112 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147090078] [2021-05-21 17:31:51,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:51,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:31:51,404 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:51,404 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147090078] [2021-05-21 17:31:51,404 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147090078] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:51,404 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:51,404 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:51,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350716398] [2021-05-21 17:31:51,404 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:51,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:51,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:51,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:51,405 INFO L87 Difference]: Start difference. First operand 5874 states and 15666 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:52,247 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:52,404 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:31:52,580 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:31:52,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:52,753 INFO L93 Difference]: Finished difference Result 21793 states and 57163 transitions. [2021-05-21 17:31:52,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:52,753 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:52,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:52,772 INFO L225 Difference]: With dead ends: 21793 [2021-05-21 17:31:52,772 INFO L226 Difference]: Without dead ends: 21793 [2021-05-21 17:31:52,772 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1167.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:52,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21793 states. [2021-05-21 17:31:52,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21793 to 5890. [2021-05-21 17:31:52,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5890 states, 5888 states have (on average 2.6684782608695654) internal successors, (15712), 5889 states have internal predecessors, (15712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:52,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5890 states to 5890 states and 15712 transitions. [2021-05-21 17:31:52,899 INFO L78 Accepts]: Start accepts. Automaton has 5890 states and 15712 transitions. Word has length 114 [2021-05-21 17:31:52,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:52,899 INFO L482 AbstractCegarLoop]: Abstraction has 5890 states and 15712 transitions. [2021-05-21 17:31:52,899 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:52,899 INFO L276 IsEmpty]: Start isEmpty. Operand 5890 states and 15712 transitions. [2021-05-21 17:31:52,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:52,903 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:52,903 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] [2021-05-21 17:31:52,903 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-05-21 17:31:52,903 INFO L430 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:52,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:52,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1414486128, now seen corresponding path program 108 times [2021-05-21 17:31:52,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:52,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442618463] [2021-05-21 17:31:52,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:53,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:31:53,205 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:53,205 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442618463] [2021-05-21 17:31:53,205 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442618463] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:53,205 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:53,205 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:53,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153142814] [2021-05-21 17:31:53,205 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:53,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:53,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:53,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:53,206 INFO L87 Difference]: Start difference. First operand 5890 states and 15712 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:54,062 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:54,232 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:31:54,404 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:31:54,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:54,569 INFO L93 Difference]: Finished difference Result 21177 states and 55189 transitions. [2021-05-21 17:31:54,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:54,570 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:54,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:54,588 INFO L225 Difference]: With dead ends: 21177 [2021-05-21 17:31:54,588 INFO L226 Difference]: Without dead ends: 21177 [2021-05-21 17:31:54,589 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1196.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:54,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21177 states. [2021-05-21 17:31:54,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21177 to 5842. [2021-05-21 17:31:54,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5842 states, 5840 states have (on average 2.666780821917808) internal successors, (15574), 5841 states have internal predecessors, (15574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:54,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5842 states to 5842 states and 15574 transitions. [2021-05-21 17:31:54,708 INFO L78 Accepts]: Start accepts. Automaton has 5842 states and 15574 transitions. Word has length 114 [2021-05-21 17:31:54,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:54,708 INFO L482 AbstractCegarLoop]: Abstraction has 5842 states and 15574 transitions. [2021-05-21 17:31:54,708 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:54,708 INFO L276 IsEmpty]: Start isEmpty. Operand 5842 states and 15574 transitions. [2021-05-21 17:31:54,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:54,712 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:54,712 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:54,712 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-05-21 17:31:54,712 INFO L430 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:54,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:54,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1281924752, now seen corresponding path program 109 times [2021-05-21 17:31:54,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:54,713 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531570846] [2021-05-21 17:31:54,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:55,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:31:55,042 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:55,042 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531570846] [2021-05-21 17:31:55,042 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531570846] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:55,042 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:55,043 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:55,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288455658] [2021-05-21 17:31:55,043 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:55,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:55,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:55,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:55,043 INFO L87 Difference]: Start difference. First operand 5842 states and 15574 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:55,854 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:31:56,028 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:31:56,205 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:31:56,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:56,338 INFO L93 Difference]: Finished difference Result 17585 states and 46090 transitions. [2021-05-21 17:31:56,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:56,339 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:56,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:56,354 INFO L225 Difference]: With dead ends: 17585 [2021-05-21 17:31:56,354 INFO L226 Difference]: Without dead ends: 17585 [2021-05-21 17:31:56,355 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1200.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:56,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17585 states. [2021-05-21 17:31:56,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17585 to 5810. [2021-05-21 17:31:56,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.665633608815427) internal successors, (15482), 5809 states have internal predecessors, (15482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:56,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15482 transitions. [2021-05-21 17:31:56,460 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15482 transitions. Word has length 114 [2021-05-21 17:31:56,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:56,460 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15482 transitions. [2021-05-21 17:31:56,460 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:56,460 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15482 transitions. [2021-05-21 17:31:56,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:56,464 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:56,464 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:56,464 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-05-21 17:31:56,464 INFO L430 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:56,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:56,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1254839758, now seen corresponding path program 110 times [2021-05-21 17:31:56,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:56,465 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581550789] [2021-05-21 17:31:56,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:56,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:31:56,775 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:56,775 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581550789] [2021-05-21 17:31:56,775 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581550789] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:56,775 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:56,775 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:56,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083170396] [2021-05-21 17:31:56,775 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:56,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:56,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:56,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:56,776 INFO L87 Difference]: Start difference. First operand 5810 states and 15482 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:57,448 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:31:57,594 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:31:57,761 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:31:57,934 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:31:58,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:58,069 INFO L93 Difference]: Finished difference Result 16807 states and 44510 transitions. [2021-05-21 17:31:58,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:58,069 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:58,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:58,084 INFO L225 Difference]: With dead ends: 16807 [2021-05-21 17:31:58,085 INFO L226 Difference]: Without dead ends: 16807 [2021-05-21 17:31:58,085 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1196.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:58,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16807 states. [2021-05-21 17:31:58,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16807 to 5874. [2021-05-21 17:31:58,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5874 states, 5872 states have (on average 2.66791553133515) internal successors, (15666), 5873 states have internal predecessors, (15666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:58,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5874 states to 5874 states and 15666 transitions. [2021-05-21 17:31:58,188 INFO L78 Accepts]: Start accepts. Automaton has 5874 states and 15666 transitions. Word has length 114 [2021-05-21 17:31:58,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:58,189 INFO L482 AbstractCegarLoop]: Abstraction has 5874 states and 15666 transitions. [2021-05-21 17:31:58,189 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:58,189 INFO L276 IsEmpty]: Start isEmpty. Operand 5874 states and 15666 transitions. [2021-05-21 17:31:58,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:58,193 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:58,193 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:31:58,193 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-05-21 17:31:58,193 INFO L430 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:58,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:58,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1126890802, now seen corresponding path program 111 times [2021-05-21 17:31:58,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:58,193 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415208260] [2021-05-21 17:31:58,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:31:58,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:31:58,500 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:31:58,501 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415208260] [2021-05-21 17:31:58,501 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415208260] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:31:58,501 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:31:58,501 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:31:58,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696833222] [2021-05-21 17:31:58,501 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:31:58,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:31:58,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:31:58,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:31:58,501 INFO L87 Difference]: Start difference. First operand 5874 states and 15666 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:59,171 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:31:59,326 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:31:59,480 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:31:59,654 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:31:59,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:31:59,790 INFO L93 Difference]: Finished difference Result 16883 states and 44646 transitions. [2021-05-21 17:31:59,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:31:59,790 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:31:59,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:31:59,805 INFO L225 Difference]: With dead ends: 16883 [2021-05-21 17:31:59,805 INFO L226 Difference]: Without dead ends: 16883 [2021-05-21 17:31:59,805 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1190.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:31:59,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16883 states. [2021-05-21 17:31:59,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16883 to 5890. [2021-05-21 17:31:59,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5890 states, 5888 states have (on average 2.6684782608695654) internal successors, (15712), 5889 states have internal predecessors, (15712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:59,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5890 states to 5890 states and 15712 transitions. [2021-05-21 17:31:59,944 INFO L78 Accepts]: Start accepts. Automaton has 5890 states and 15712 transitions. Word has length 114 [2021-05-21 17:31:59,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:31:59,944 INFO L482 AbstractCegarLoop]: Abstraction has 5890 states and 15712 transitions. [2021-05-21 17:31:59,944 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:31:59,944 INFO L276 IsEmpty]: Start isEmpty. Operand 5890 states and 15712 transitions. [2021-05-21 17:31:59,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:31:59,948 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:31:59,948 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] [2021-05-21 17:31:59,948 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-05-21 17:31:59,949 INFO L430 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:31:59,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:31:59,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1008583820, now seen corresponding path program 112 times [2021-05-21 17:31:59,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:31:59,949 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116301923] [2021-05-21 17:31:59,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:31:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:00,254 INFO 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 17:32:00,255 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:00,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116301923] [2021-05-21 17:32:00,255 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116301923] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:00,255 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:00,255 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:00,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655040237] [2021-05-21 17:32:00,255 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:00,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:00,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:00,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:00,256 INFO L87 Difference]: Start difference. First operand 5890 states and 15712 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:01,100 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:01,267 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:32:01,442 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:32:01,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:01,582 INFO L93 Difference]: Finished difference Result 16267 states and 42672 transitions. [2021-05-21 17:32:01,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:01,582 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:01,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:01,596 INFO L225 Difference]: With dead ends: 16267 [2021-05-21 17:32:01,596 INFO L226 Difference]: Without dead ends: 16267 [2021-05-21 17:32:01,596 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1196.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:01,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16267 states. [2021-05-21 17:32:01,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16267 to 5842. [2021-05-21 17:32:01,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5842 states, 5840 states have (on average 2.666780821917808) internal successors, (15574), 5841 states have internal predecessors, (15574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:01,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5842 states to 5842 states and 15574 transitions. [2021-05-21 17:32:01,690 INFO L78 Accepts]: Start accepts. Automaton has 5842 states and 15574 transitions. Word has length 114 [2021-05-21 17:32:01,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:01,690 INFO L482 AbstractCegarLoop]: Abstraction has 5842 states and 15574 transitions. [2021-05-21 17:32:01,690 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:01,690 INFO L276 IsEmpty]: Start isEmpty. Operand 5842 states and 15574 transitions. [2021-05-21 17:32:01,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:01,694 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:01,694 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:01,694 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-05-21 17:32:01,694 INFO L430 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:01,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:01,694 INFO L82 PathProgramCache]: Analyzing trace with hash 876022444, now seen corresponding path program 113 times [2021-05-21 17:32:01,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:01,694 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333271984] [2021-05-21 17:32:01,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:02,000 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 17:32:02,000 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:02,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333271984] [2021-05-21 17:32:02,001 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333271984] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:02,001 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:02,001 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:02,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400744905] [2021-05-21 17:32:02,001 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:02,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:02,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:02,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:02,001 INFO L87 Difference]: Start difference. First operand 5842 states and 15574 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:02,814 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:32:02,988 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:32:03,165 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:32:03,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:03,294 INFO L93 Difference]: Finished difference Result 16335 states and 42978 transitions. [2021-05-21 17:32:03,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:03,294 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:03,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:03,307 INFO L225 Difference]: With dead ends: 16335 [2021-05-21 17:32:03,307 INFO L226 Difference]: Without dead ends: 16335 [2021-05-21 17:32:03,308 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1158.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:03,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16335 states. [2021-05-21 17:32:03,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16335 to 5826. [2021-05-21 17:32:03,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5824 states have (on average 2.666208791208791) internal successors, (15528), 5825 states have internal predecessors, (15528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:03,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 15528 transitions. [2021-05-21 17:32:03,412 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 15528 transitions. Word has length 114 [2021-05-21 17:32:03,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:03,412 INFO L482 AbstractCegarLoop]: Abstraction has 5826 states and 15528 transitions. [2021-05-21 17:32:03,412 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:03,412 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 15528 transitions. [2021-05-21 17:32:03,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:03,416 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:03,416 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] [2021-05-21 17:32:03,416 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-05-21 17:32:03,416 INFO L430 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:03,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:03,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1216266802, now seen corresponding path program 114 times [2021-05-21 17:32:03,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:03,416 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953511088] [2021-05-21 17:32:03,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:03,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:03,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:32:03,738 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:03,738 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953511088] [2021-05-21 17:32:03,738 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953511088] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:03,738 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:03,738 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:03,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856969487] [2021-05-21 17:32:03,738 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:03,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:03,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:03,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:03,738 INFO L87 Difference]: Start difference. First operand 5826 states and 15528 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:04,525 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:32:04,696 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:32:04,869 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:32:05,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:05,020 INFO L93 Difference]: Finished difference Result 12961 states and 34254 transitions. [2021-05-21 17:32:05,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:05,020 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:05,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:05,028 INFO L225 Difference]: With dead ends: 12961 [2021-05-21 17:32:05,028 INFO L226 Difference]: Without dead ends: 12961 [2021-05-21 17:32:05,028 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1176.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:05,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12961 states. [2021-05-21 17:32:05,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12961 to 5770. [2021-05-21 17:32:05,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5770 states, 5768 states have (on average 2.663661581137309) internal successors, (15364), 5769 states have internal predecessors, (15364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:05,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5770 states to 5770 states and 15364 transitions. [2021-05-21 17:32:05,100 INFO L78 Accepts]: Start accepts. Automaton has 5770 states and 15364 transitions. Word has length 114 [2021-05-21 17:32:05,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:05,100 INFO L482 AbstractCegarLoop]: Abstraction has 5770 states and 15364 transitions. [2021-05-21 17:32:05,100 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:05,101 INFO L276 IsEmpty]: Start isEmpty. Operand 5770 states and 15364 transitions. [2021-05-21 17:32:05,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:05,104 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:05,104 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] [2021-05-21 17:32:05,104 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-05-21 17:32:05,105 INFO L430 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:05,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:05,105 INFO L82 PathProgramCache]: Analyzing trace with hash -969027600, now seen corresponding path program 115 times [2021-05-21 17:32:05,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:05,105 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188177162] [2021-05-21 17:32:05,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:05,393 INFO 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 17:32:05,393 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:05,393 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188177162] [2021-05-21 17:32:05,393 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188177162] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:05,393 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:05,393 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:05,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611695467] [2021-05-21 17:32:05,393 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:05,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:05,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:05,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:05,394 INFO L87 Difference]: Start difference. First operand 5770 states and 15364 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:06,183 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:32:06,345 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:32:06,517 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:32:06,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:06,651 INFO L93 Difference]: Finished difference Result 17528 states and 45805 transitions. [2021-05-21 17:32:06,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:06,651 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:06,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:06,665 INFO L225 Difference]: With dead ends: 17528 [2021-05-21 17:32:06,665 INFO L226 Difference]: Without dead ends: 17528 [2021-05-21 17:32:06,665 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1151.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:06,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17528 states. [2021-05-21 17:32:06,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17528 to 5896. [2021-05-21 17:32:06,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5896 states, 5894 states have (on average 2.668306752629793) internal successors, (15727), 5895 states have internal predecessors, (15727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:06,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5896 states to 5896 states and 15727 transitions. [2021-05-21 17:32:06,771 INFO L78 Accepts]: Start accepts. Automaton has 5896 states and 15727 transitions. Word has length 114 [2021-05-21 17:32:06,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:06,771 INFO L482 AbstractCegarLoop]: Abstraction has 5896 states and 15727 transitions. [2021-05-21 17:32:06,771 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:06,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5896 states and 15727 transitions. [2021-05-21 17:32:06,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:06,775 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:06,775 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:06,775 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-05-21 17:32:06,775 INFO L430 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:06,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:06,775 INFO L82 PathProgramCache]: Analyzing trace with hash 944209136, now seen corresponding path program 116 times [2021-05-21 17:32:06,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:06,775 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807839565] [2021-05-21 17:32:06,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:07,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:32:07,054 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:07,054 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807839565] [2021-05-21 17:32:07,054 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807839565] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:07,054 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:07,054 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:07,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965076687] [2021-05-21 17:32:07,055 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:07,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:07,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:07,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:07,055 INFO L87 Difference]: Start difference. First operand 5896 states and 15727 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:07,895 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:08,045 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:32:08,219 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:32:08,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:08,361 INFO L93 Difference]: Finished difference Result 20152 states and 52528 transitions. [2021-05-21 17:32:08,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:08,362 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:08,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:08,380 INFO L225 Difference]: With dead ends: 20152 [2021-05-21 17:32:08,381 INFO L226 Difference]: Without dead ends: 20152 [2021-05-21 17:32:08,381 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1164.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:08,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20152 states. [2021-05-21 17:32:08,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20152 to 5912. [2021-05-21 17:32:08,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5912 states, 5910 states have (on average 2.668866328257191) internal successors, (15773), 5911 states have internal predecessors, (15773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:08,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5912 states to 5912 states and 15773 transitions. [2021-05-21 17:32:08,498 INFO L78 Accepts]: Start accepts. Automaton has 5912 states and 15773 transitions. Word has length 114 [2021-05-21 17:32:08,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:08,499 INFO L482 AbstractCegarLoop]: Abstraction has 5912 states and 15773 transitions. [2021-05-21 17:32:08,499 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:08,499 INFO L276 IsEmpty]: Start isEmpty. Operand 5912 states and 15773 transitions. [2021-05-21 17:32:08,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:08,503 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:08,503 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] [2021-05-21 17:32:08,503 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-05-21 17:32:08,503 INFO L430 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:08,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:08,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1215283538, now seen corresponding path program 117 times [2021-05-21 17:32:08,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:08,503 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941860993] [2021-05-21 17:32:08,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:08,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:32:08,782 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:08,782 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941860993] [2021-05-21 17:32:08,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941860993] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:08,782 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:08,782 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:08,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428291465] [2021-05-21 17:32:08,783 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:08,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:08,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:08,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:08,783 INFO L87 Difference]: Start difference. First operand 5912 states and 15773 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:09,582 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:09,740 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:32:09,924 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:32:10,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:10,050 INFO L93 Difference]: Finished difference Result 18432 states and 47816 transitions. [2021-05-21 17:32:10,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:10,050 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:10,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:10,065 INFO L225 Difference]: With dead ends: 18432 [2021-05-21 17:32:10,065 INFO L226 Difference]: Without dead ends: 18432 [2021-05-21 17:32:10,065 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1170.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:10,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18432 states. [2021-05-21 17:32:10,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18432 to 5864. [2021-05-21 17:32:10,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5864 states, 5862 states have (on average 2.667178437393381) internal successors, (15635), 5863 states have internal predecessors, (15635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:10,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5864 states to 5864 states and 15635 transitions. [2021-05-21 17:32:10,179 INFO L78 Accepts]: Start accepts. Automaton has 5864 states and 15635 transitions. Word has length 114 [2021-05-21 17:32:10,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:10,179 INFO L482 AbstractCegarLoop]: Abstraction has 5864 states and 15635 transitions. [2021-05-21 17:32:10,179 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:10,179 INFO L276 IsEmpty]: Start isEmpty. Operand 5864 states and 15635 transitions. [2021-05-21 17:32:10,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:10,183 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:10,183 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] [2021-05-21 17:32:10,183 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-05-21 17:32:10,183 INFO L430 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:10,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:10,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1265955760, now seen corresponding path program 118 times [2021-05-21 17:32:10,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:10,184 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573515283] [2021-05-21 17:32:10,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:10,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:32:10,468 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:10,468 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573515283] [2021-05-21 17:32:10,468 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573515283] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:10,468 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:10,468 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:10,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992773351] [2021-05-21 17:32:10,469 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:10,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:10,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:10,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:10,469 INFO L87 Difference]: Start difference. First operand 5864 states and 15635 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:11,261 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:11,410 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:32:11,579 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:32:11,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:11,708 INFO L93 Difference]: Finished difference Result 17632 states and 45963 transitions. [2021-05-21 17:32:11,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:11,708 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:11,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:11,723 INFO L225 Difference]: With dead ends: 17632 [2021-05-21 17:32:11,723 INFO L226 Difference]: Without dead ends: 17632 [2021-05-21 17:32:11,723 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1136.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:11,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17632 states. [2021-05-21 17:32:11,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17632 to 5896. [2021-05-21 17:32:11,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5896 states, 5894 states have (on average 2.668306752629793) internal successors, (15727), 5895 states have internal predecessors, (15727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:11,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5896 states to 5896 states and 15727 transitions. [2021-05-21 17:32:11,827 INFO L78 Accepts]: Start accepts. Automaton has 5896 states and 15727 transitions. Word has length 114 [2021-05-21 17:32:11,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:11,827 INFO L482 AbstractCegarLoop]: Abstraction has 5896 states and 15727 transitions. [2021-05-21 17:32:11,827 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:11,827 INFO L276 IsEmpty]: Start isEmpty. Operand 5896 states and 15727 transitions. [2021-05-21 17:32:11,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:11,831 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:11,831 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:11,831 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-05-21 17:32:11,831 INFO L430 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:11,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:11,831 INFO L82 PathProgramCache]: Analyzing trace with hash -893536914, now seen corresponding path program 119 times [2021-05-21 17:32:11,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:11,831 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763302779] [2021-05-21 17:32:11,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:12,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:32:12,123 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:12,123 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763302779] [2021-05-21 17:32:12,123 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763302779] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:12,123 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:12,123 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:12,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961702994] [2021-05-21 17:32:12,123 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:12,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:12,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:12,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:12,124 INFO L87 Difference]: Start difference. First operand 5896 states and 15727 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:12,919 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:13,080 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:32:13,244 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:32:13,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:13,373 INFO L93 Difference]: Finished difference Result 18478 states and 47823 transitions. [2021-05-21 17:32:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:13,373 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:13,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:13,388 INFO L225 Difference]: With dead ends: 18478 [2021-05-21 17:32:13,389 INFO L226 Difference]: Without dead ends: 18478 [2021-05-21 17:32:13,389 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1168.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:13,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18478 states. [2021-05-21 17:32:13,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18478 to 5880. [2021-05-21 17:32:13,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5880 states, 5878 states have (on average 2.667744130656686) internal successors, (15681), 5879 states have internal predecessors, (15681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:13,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5880 states to 5880 states and 15681 transitions. [2021-05-21 17:32:13,500 INFO L78 Accepts]: Start accepts. Automaton has 5880 states and 15681 transitions. Word has length 114 [2021-05-21 17:32:13,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:13,500 INFO L482 AbstractCegarLoop]: Abstraction has 5880 states and 15681 transitions. [2021-05-21 17:32:13,500 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:13,500 INFO L276 IsEmpty]: Start isEmpty. Operand 5880 states and 15681 transitions. [2021-05-21 17:32:13,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:13,504 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:13,504 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:13,504 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-05-21 17:32:13,504 INFO L430 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:13,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:13,505 INFO L82 PathProgramCache]: Analyzing trace with hash -95673454, now seen corresponding path program 120 times [2021-05-21 17:32:13,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:13,505 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575349278] [2021-05-21 17:32:13,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:13,785 INFO 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 17:32:13,785 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:13,785 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575349278] [2021-05-21 17:32:13,785 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575349278] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:13,785 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:13,785 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:13,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937683379] [2021-05-21 17:32:13,786 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:13,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:13,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:13,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:13,786 INFO L87 Difference]: Start difference. First operand 5880 states and 15681 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:14,596 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:14,769 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:32:14,937 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:32:15,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:15,063 INFO L93 Difference]: Finished difference Result 17778 states and 46194 transitions. [2021-05-21 17:32:15,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:15,063 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:15,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:15,078 INFO L225 Difference]: With dead ends: 17778 [2021-05-21 17:32:15,078 INFO L226 Difference]: Without dead ends: 17778 [2021-05-21 17:32:15,078 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1179.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:15,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17778 states. [2021-05-21 17:32:15,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17778 to 5896. [2021-05-21 17:32:15,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5896 states, 5894 states have (on average 2.668306752629793) internal successors, (15727), 5895 states have internal predecessors, (15727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:15,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5896 states to 5896 states and 15727 transitions. [2021-05-21 17:32:15,183 INFO L78 Accepts]: Start accepts. Automaton has 5896 states and 15727 transitions. Word has length 114 [2021-05-21 17:32:15,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:15,183 INFO L482 AbstractCegarLoop]: Abstraction has 5896 states and 15727 transitions. [2021-05-21 17:32:15,183 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:15,183 INFO L276 IsEmpty]: Start isEmpty. Operand 5896 states and 15727 transitions. [2021-05-21 17:32:15,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:15,187 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:15,187 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] [2021-05-21 17:32:15,187 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-05-21 17:32:15,187 INFO L430 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:15,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:15,188 INFO L82 PathProgramCache]: Analyzing trace with hash -344220434, now seen corresponding path program 121 times [2021-05-21 17:32:15,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:15,188 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916062465] [2021-05-21 17:32:15,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:15,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:15,452 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 17:32:15,453 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:15,453 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916062465] [2021-05-21 17:32:15,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916062465] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:15,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:15,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:15,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422960683] [2021-05-21 17:32:15,453 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:15,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:15,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:15,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:15,454 INFO L87 Difference]: Start difference. First operand 5896 states and 15727 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:16,266 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:16,416 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:32:16,588 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:32:16,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:16,716 INFO L93 Difference]: Finished difference Result 15036 states and 39282 transitions. [2021-05-21 17:32:16,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:16,717 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:16,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:16,729 INFO L225 Difference]: With dead ends: 15036 [2021-05-21 17:32:16,729 INFO L226 Difference]: Without dead ends: 15036 [2021-05-21 17:32:16,729 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1133.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:16,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15036 states. [2021-05-21 17:32:16,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15036 to 5832. [2021-05-21 17:32:16,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5832 states, 5830 states have (on average 2.6660377358490566) internal successors, (15543), 5831 states have internal predecessors, (15543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:16,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5832 states to 5832 states and 15543 transitions. [2021-05-21 17:32:16,823 INFO L78 Accepts]: Start accepts. Automaton has 5832 states and 15543 transitions. Word has length 114 [2021-05-21 17:32:16,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:16,823 INFO L482 AbstractCegarLoop]: Abstraction has 5832 states and 15543 transitions. [2021-05-21 17:32:16,823 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:16,823 INFO L276 IsEmpty]: Start isEmpty. Operand 5832 states and 15543 transitions. [2021-05-21 17:32:16,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:16,827 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:16,827 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:16,827 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-05-21 17:32:16,827 INFO L430 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:16,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:16,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1063705838, now seen corresponding path program 122 times [2021-05-21 17:32:16,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:16,828 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392537593] [2021-05-21 17:32:16,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:17,145 INFO 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 17:32:17,145 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:17,145 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392537593] [2021-05-21 17:32:17,145 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392537593] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:17,146 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:17,146 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:17,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984738858] [2021-05-21 17:32:17,146 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:17,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:17,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:17,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:17,147 INFO L87 Difference]: Start difference. First operand 5832 states and 15543 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:17,936 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:32:18,100 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:32:18,272 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:32:18,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:18,408 INFO L93 Difference]: Finished difference Result 16228 states and 42674 transitions. [2021-05-21 17:32:18,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:18,408 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:18,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:18,424 INFO L225 Difference]: With dead ends: 16228 [2021-05-21 17:32:18,424 INFO L226 Difference]: Without dead ends: 16228 [2021-05-21 17:32:18,425 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1151.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:18,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16228 states. [2021-05-21 17:32:18,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16228 to 5880. [2021-05-21 17:32:18,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5880 states, 5878 states have (on average 2.667744130656686) internal successors, (15681), 5879 states have internal predecessors, (15681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:18,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5880 states to 5880 states and 15681 transitions. [2021-05-21 17:32:18,536 INFO L78 Accepts]: Start accepts. Automaton has 5880 states and 15681 transitions. Word has length 114 [2021-05-21 17:32:18,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:18,536 INFO L482 AbstractCegarLoop]: Abstraction has 5880 states and 15681 transitions. [2021-05-21 17:32:18,536 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:18,536 INFO L276 IsEmpty]: Start isEmpty. Operand 5880 states and 15681 transitions. [2021-05-21 17:32:18,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:18,542 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:18,542 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:18,542 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-05-21 17:32:18,542 INFO L430 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:18,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:18,542 INFO L82 PathProgramCache]: Analyzing trace with hash 849530898, now seen corresponding path program 123 times [2021-05-21 17:32:18,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:18,543 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585361010] [2021-05-21 17:32:18,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:18,835 INFO 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 17:32:18,835 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:18,835 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585361010] [2021-05-21 17:32:18,835 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585361010] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:18,835 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:18,836 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:18,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934619460] [2021-05-21 17:32:18,836 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:18,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:18,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:18,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:18,836 INFO L87 Difference]: Start difference. First operand 5880 states and 15681 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:19,520 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:32:19,672 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:19,823 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:32:19,996 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:32:20,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:20,127 INFO L93 Difference]: Finished difference Result 16304 states and 42810 transitions. [2021-05-21 17:32:20,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:20,127 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:20,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:20,141 INFO L225 Difference]: With dead ends: 16304 [2021-05-21 17:32:20,142 INFO L226 Difference]: Without dead ends: 16304 [2021-05-21 17:32:20,142 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1189.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:20,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16304 states. [2021-05-21 17:32:20,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16304 to 5896. [2021-05-21 17:32:20,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5896 states, 5894 states have (on average 2.668306752629793) internal successors, (15727), 5895 states have internal predecessors, (15727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:20,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5896 states to 5896 states and 15727 transitions. [2021-05-21 17:32:20,246 INFO L78 Accepts]: Start accepts. Automaton has 5896 states and 15727 transitions. Word has length 114 [2021-05-21 17:32:20,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:20,246 INFO L482 AbstractCegarLoop]: Abstraction has 5896 states and 15727 transitions. [2021-05-21 17:32:20,246 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:20,246 INFO L276 IsEmpty]: Start isEmpty. Operand 5896 states and 15727 transitions. [2021-05-21 17:32:20,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:20,250 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:20,250 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] [2021-05-21 17:32:20,250 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-05-21 17:32:20,250 INFO L430 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:20,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:20,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1309961776, now seen corresponding path program 124 times [2021-05-21 17:32:20,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:20,251 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855672630] [2021-05-21 17:32:20,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:20,547 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 17:32:20,547 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:20,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855672630] [2021-05-21 17:32:20,547 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855672630] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:20,547 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:20,547 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:20,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117938654] [2021-05-21 17:32:20,547 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:20,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:20,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:20,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:20,548 INFO L87 Difference]: Start difference. First operand 5896 states and 15727 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:21,364 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:21,527 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:32:21,695 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:32:21,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:21,821 INFO L93 Difference]: Finished difference Result 15688 states and 40836 transitions. [2021-05-21 17:32:21,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:21,821 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:21,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:21,834 INFO L225 Difference]: With dead ends: 15688 [2021-05-21 17:32:21,834 INFO L226 Difference]: Without dead ends: 15688 [2021-05-21 17:32:21,835 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1182.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:21,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15688 states. [2021-05-21 17:32:21,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15688 to 5848. [2021-05-21 17:32:21,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5848 states, 5846 states have (on average 2.666609647622306) internal successors, (15589), 5847 states have internal predecessors, (15589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:21,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5848 states to 5848 states and 15589 transitions. [2021-05-21 17:32:21,963 INFO L78 Accepts]: Start accepts. Automaton has 5848 states and 15589 transitions. Word has length 114 [2021-05-21 17:32:21,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:21,963 INFO L482 AbstractCegarLoop]: Abstraction has 5848 states and 15589 transitions. [2021-05-21 17:32:21,963 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:21,963 INFO L276 IsEmpty]: Start isEmpty. Operand 5848 states and 15589 transitions. [2021-05-21 17:32:21,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:21,967 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:21,967 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:21,967 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-05-21 17:32:21,967 INFO L430 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:21,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:21,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1442523152, now seen corresponding path program 125 times [2021-05-21 17:32:21,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:21,967 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005025915] [2021-05-21 17:32:21,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:22,265 INFO 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 17:32:22,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:22,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005025915] [2021-05-21 17:32:22,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005025915] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:22,265 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:22,265 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:22,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486134122] [2021-05-21 17:32:22,266 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:22,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:22,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:22,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:22,266 INFO L87 Difference]: Start difference. First operand 5848 states and 15589 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:23,067 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:32:23,236 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:32:23,409 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:32:23,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:23,535 INFO L93 Difference]: Finished difference Result 12448 states and 32589 transitions. [2021-05-21 17:32:23,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:23,536 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:23,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:23,545 INFO L225 Difference]: With dead ends: 12448 [2021-05-21 17:32:23,545 INFO L226 Difference]: Without dead ends: 12448 [2021-05-21 17:32:23,546 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1151.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:23,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12448 states. [2021-05-21 17:32:23,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12448 to 5816. [2021-05-21 17:32:23,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5816 states, 5814 states have (on average 2.66546267629859) internal successors, (15497), 5815 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 17:32:23,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5816 states to 5816 states and 15497 transitions. [2021-05-21 17:32:23,626 INFO L78 Accepts]: Start accepts. Automaton has 5816 states and 15497 transitions. Word has length 114 [2021-05-21 17:32:23,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:23,626 INFO L482 AbstractCegarLoop]: Abstraction has 5816 states and 15497 transitions. [2021-05-21 17:32:23,626 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:23,626 INFO L276 IsEmpty]: Start isEmpty. Operand 5816 states and 15497 transitions. [2021-05-21 17:32:23,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:23,630 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:23,630 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:23,630 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-05-21 17:32:23,630 INFO L430 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:23,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:23,630 INFO L82 PathProgramCache]: Analyzing trace with hash -131006960, now seen corresponding path program 126 times [2021-05-21 17:32:23,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:23,630 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328709148] [2021-05-21 17:32:23,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:23,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:32:23,911 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:23,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328709148] [2021-05-21 17:32:23,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328709148] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:23,911 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:23,911 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:23,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627632858] [2021-05-21 17:32:23,911 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:23,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:23,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:23,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:23,912 INFO L87 Difference]: Start difference. First operand 5816 states and 15497 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:24,741 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:32:24,907 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:32:25,080 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:32:25,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:25,223 INFO L93 Difference]: Finished difference Result 16948 states and 44081 transitions. [2021-05-21 17:32:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:25,224 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:25,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:25,238 INFO L225 Difference]: With dead ends: 16948 [2021-05-21 17:32:25,238 INFO L226 Difference]: Without dead ends: 16948 [2021-05-21 17:32:25,239 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1152.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:25,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16948 states. [2021-05-21 17:32:25,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16948 to 5944. [2021-05-21 17:32:25,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5944 states, 5942 states have (on average 2.6699764389094582) internal successors, (15865), 5943 states have internal predecessors, (15865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:25,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5944 states to 5944 states and 15865 transitions. [2021-05-21 17:32:25,340 INFO L78 Accepts]: Start accepts. Automaton has 5944 states and 15865 transitions. Word has length 114 [2021-05-21 17:32:25,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:25,340 INFO L482 AbstractCegarLoop]: Abstraction has 5944 states and 15865 transitions. [2021-05-21 17:32:25,340 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:25,340 INFO L276 IsEmpty]: Start isEmpty. Operand 5944 states and 15865 transitions. [2021-05-21 17:32:25,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:25,344 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:25,344 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:25,345 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-05-21 17:32:25,345 INFO L430 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:25,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:25,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1782229776, now seen corresponding path program 127 times [2021-05-21 17:32:25,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:25,345 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531398455] [2021-05-21 17:32:25,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:25,624 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 17:32:25,624 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:25,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531398455] [2021-05-21 17:32:25,624 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531398455] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:25,624 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:25,624 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:25,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061009509] [2021-05-21 17:32:25,625 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:25,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:25,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:25,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:25,625 INFO L87 Difference]: Start difference. First operand 5944 states and 15865 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:26,454 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:26,606 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:32:26,782 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:32:26,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:26,928 INFO L93 Difference]: Finished difference Result 19572 states and 50804 transitions. [2021-05-21 17:32:26,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:26,928 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:26,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:26,945 INFO L225 Difference]: With dead ends: 19572 [2021-05-21 17:32:26,945 INFO L226 Difference]: Without dead ends: 19572 [2021-05-21 17:32:26,945 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1147.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:26,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19572 states. [2021-05-21 17:32:27,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19572 to 5960. [2021-05-21 17:32:27,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5960 states, 5958 states have (on average 2.6705270224907687) internal successors, (15911), 5959 states have internal predecessors, (15911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:27,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5960 states to 5960 states and 15911 transitions. [2021-05-21 17:32:27,065 INFO L78 Accepts]: Start accepts. Automaton has 5960 states and 15911 transitions. Word has length 114 [2021-05-21 17:32:27,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:27,065 INFO L482 AbstractCegarLoop]: Abstraction has 5960 states and 15911 transitions. [2021-05-21 17:32:27,065 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:27,065 INFO L276 IsEmpty]: Start isEmpty. Operand 5960 states and 15911 transitions. [2021-05-21 17:32:27,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:27,069 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:27,069 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:27,069 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-05-21 17:32:27,069 INFO L430 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:27,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:27,070 INFO L82 PathProgramCache]: Analyzing trace with hash -377262898, now seen corresponding path program 128 times [2021-05-21 17:32:27,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:27,070 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277073111] [2021-05-21 17:32:27,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:27,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:32:27,362 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:27,362 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277073111] [2021-05-21 17:32:27,362 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277073111] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:27,362 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:27,362 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:27,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729206570] [2021-05-21 17:32:27,362 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:27,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:27,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:27,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:27,363 INFO L87 Difference]: Start difference. First operand 5960 states and 15911 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:28,201 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:28,366 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:32:28,541 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:32:28,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:28,687 INFO L93 Difference]: Finished difference Result 17852 states and 46092 transitions. [2021-05-21 17:32:28,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:28,687 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:28,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:28,703 INFO L225 Difference]: With dead ends: 17852 [2021-05-21 17:32:28,703 INFO L226 Difference]: Without dead ends: 17852 [2021-05-21 17:32:28,703 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1173.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:28,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17852 states. [2021-05-21 17:32:28,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17852 to 5912. [2021-05-21 17:32:28,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5912 states, 5910 states have (on average 2.668866328257191) internal successors, (15773), 5911 states have internal predecessors, (15773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:28,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5912 states to 5912 states and 15773 transitions. [2021-05-21 17:32:28,814 INFO L78 Accepts]: Start accepts. Automaton has 5912 states and 15773 transitions. Word has length 114 [2021-05-21 17:32:28,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:28,814 INFO L482 AbstractCegarLoop]: Abstraction has 5912 states and 15773 transitions. [2021-05-21 17:32:28,814 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:28,814 INFO L276 IsEmpty]: Start isEmpty. Operand 5912 states and 15773 transitions. [2021-05-21 17:32:28,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:28,819 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:28,819 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, 1] [2021-05-21 17:32:28,819 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-05-21 17:32:28,819 INFO L430 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:28,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:28,819 INFO L82 PathProgramCache]: Analyzing trace with hash 2103976400, now seen corresponding path program 129 times [2021-05-21 17:32:28,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:28,819 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890077614] [2021-05-21 17:32:28,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:29,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:32:29,082 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:29,082 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890077614] [2021-05-21 17:32:29,083 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890077614] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:29,083 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:29,083 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:29,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145136657] [2021-05-21 17:32:29,083 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:29,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:29,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:29,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:29,083 INFO L87 Difference]: Start difference. First operand 5912 states and 15773 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:29,907 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:30,058 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:32:30,228 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:32:30,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:30,369 INFO L93 Difference]: Finished difference Result 20928 states and 54021 transitions. [2021-05-21 17:32:30,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:30,370 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:30,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:30,387 INFO L225 Difference]: With dead ends: 20928 [2021-05-21 17:32:30,387 INFO L226 Difference]: Without dead ends: 20928 [2021-05-21 17:32:30,387 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1137.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:30,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20928 states. [2021-05-21 17:32:30,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20928 to 5944. [2021-05-21 17:32:30,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5944 states, 5942 states have (on average 2.6699764389094582) internal successors, (15865), 5943 states have internal predecessors, (15865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:30,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5944 states to 5944 states and 15865 transitions. [2021-05-21 17:32:30,504 INFO L78 Accepts]: Start accepts. Automaton has 5944 states and 15865 transitions. Word has length 114 [2021-05-21 17:32:30,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:30,504 INFO L482 AbstractCegarLoop]: Abstraction has 5944 states and 15865 transitions. [2021-05-21 17:32:30,504 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:30,504 INFO L276 IsEmpty]: Start isEmpty. Operand 5944 states and 15865 transitions. [2021-05-21 17:32:30,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:30,508 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:30,508 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:30,508 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-05-21 17:32:30,509 INFO L430 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:30,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:30,509 INFO L82 PathProgramCache]: Analyzing trace with hash -55516274, now seen corresponding path program 130 times [2021-05-21 17:32:30,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:30,509 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934224070] [2021-05-21 17:32:30,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:30,779 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 17:32:30,779 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:30,779 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934224070] [2021-05-21 17:32:30,779 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934224070] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:30,779 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:30,779 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:30,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900412783] [2021-05-21 17:32:30,780 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:30,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:30,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:30,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:30,780 INFO L87 Difference]: Start difference. First operand 5944 states and 15865 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:31,607 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:31,773 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:32:31,958 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:32:32,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:32,116 INFO L93 Difference]: Finished difference Result 21774 states and 55881 transitions. [2021-05-21 17:32:32,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:32,116 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:32,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:32,135 INFO L225 Difference]: With dead ends: 21774 [2021-05-21 17:32:32,135 INFO L226 Difference]: Without dead ends: 21774 [2021-05-21 17:32:32,135 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1159.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:32,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21774 states. [2021-05-21 17:32:32,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21774 to 5928. [2021-05-21 17:32:32,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5928 states, 5926 states have (on average 2.6694228822139725) internal successors, (15819), 5927 states have internal predecessors, (15819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:32,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 15819 transitions. [2021-05-21 17:32:32,264 INFO L78 Accepts]: Start accepts. Automaton has 5928 states and 15819 transitions. Word has length 114 [2021-05-21 17:32:32,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:32,265 INFO L482 AbstractCegarLoop]: Abstraction has 5928 states and 15819 transitions. [2021-05-21 17:32:32,265 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:32,265 INFO L276 IsEmpty]: Start isEmpty. Operand 5928 states and 15819 transitions. [2021-05-21 17:32:32,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:32,269 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:32,269 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:32,269 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-05-21 17:32:32,269 INFO L430 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:32,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:32,269 INFO L82 PathProgramCache]: Analyzing trace with hash 742347186, now seen corresponding path program 131 times [2021-05-21 17:32:32,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:32,269 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678753520] [2021-05-21 17:32:32,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:32,537 INFO 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 17:32:32,537 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:32,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678753520] [2021-05-21 17:32:32,537 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678753520] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:32,537 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:32,537 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:32,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216975620] [2021-05-21 17:32:32,537 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:32,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:32,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:32,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:32,538 INFO L87 Difference]: Start difference. First operand 5928 states and 15819 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:33,368 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:33,534 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:32:33,708 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:32:33,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:33,867 INFO L93 Difference]: Finished difference Result 21074 states and 54252 transitions. [2021-05-21 17:32:33,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:33,868 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:33,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:33,886 INFO L225 Difference]: With dead ends: 21074 [2021-05-21 17:32:33,886 INFO L226 Difference]: Without dead ends: 21074 [2021-05-21 17:32:33,886 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1155.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:33,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21074 states. [2021-05-21 17:32:33,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21074 to 5944. [2021-05-21 17:32:34,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5944 states, 5942 states have (on average 2.6699764389094582) internal successors, (15865), 5943 states have internal predecessors, (15865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:34,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5944 states to 5944 states and 15865 transitions. [2021-05-21 17:32:34,007 INFO L78 Accepts]: Start accepts. Automaton has 5944 states and 15865 transitions. Word has length 114 [2021-05-21 17:32:34,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:34,008 INFO L482 AbstractCegarLoop]: Abstraction has 5944 states and 15865 transitions. [2021-05-21 17:32:34,008 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:34,008 INFO L276 IsEmpty]: Start isEmpty. Operand 5944 states and 15865 transitions. [2021-05-21 17:32:34,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:34,012 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:34,012 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] [2021-05-21 17:32:34,012 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-05-21 17:32:34,012 INFO L430 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:34,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:34,012 INFO L82 PathProgramCache]: Analyzing trace with hash 493800206, now seen corresponding path program 132 times [2021-05-21 17:32:34,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:34,012 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665481351] [2021-05-21 17:32:34,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:34,304 INFO 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 17:32:34,304 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:34,304 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665481351] [2021-05-21 17:32:34,304 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665481351] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:34,304 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:34,304 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:34,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359727198] [2021-05-21 17:32:34,304 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:34,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:34,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:34,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:34,305 INFO L87 Difference]: Start difference. First operand 5944 states and 15865 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:34,979 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:32:35,116 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:35,267 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:32:35,438 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:32:35,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:35,559 INFO L93 Difference]: Finished difference Result 18032 states and 46590 transitions. [2021-05-21 17:32:35,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:35,560 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:35,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:35,575 INFO L225 Difference]: With dead ends: 18032 [2021-05-21 17:32:35,575 INFO L226 Difference]: Without dead ends: 18032 [2021-05-21 17:32:35,576 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1147.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:35,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18032 states. [2021-05-21 17:32:35,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18032 to 5880. [2021-05-21 17:32:35,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5880 states, 5878 states have (on average 2.667744130656686) internal successors, (15681), 5879 states have internal predecessors, (15681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:35,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5880 states to 5880 states and 15681 transitions. [2021-05-21 17:32:35,684 INFO L78 Accepts]: Start accepts. Automaton has 5880 states and 15681 transitions. Word has length 114 [2021-05-21 17:32:35,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:35,684 INFO L482 AbstractCegarLoop]: Abstraction has 5880 states and 15681 transitions. [2021-05-21 17:32:35,684 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:35,684 INFO L276 IsEmpty]: Start isEmpty. Operand 5880 states and 15681 transitions. [2021-05-21 17:32:35,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:35,688 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:35,688 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:35,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-05-21 17:32:35,688 INFO L430 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:35,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:35,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1968774226, now seen corresponding path program 133 times [2021-05-21 17:32:35,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:35,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540630041] [2021-05-21 17:32:35,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:35,955 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 17:32:35,955 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:35,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540630041] [2021-05-21 17:32:35,956 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540630041] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:35,956 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:35,956 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:35,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322309452] [2021-05-21 17:32:35,956 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:35,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:35,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:35,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:35,956 INFO L87 Difference]: Start difference. First operand 5880 states and 15681 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:36,647 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:32:36,786 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:36,938 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:32:37,108 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:32:37,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:37,234 INFO L93 Difference]: Finished difference Result 16508 states and 42855 transitions. [2021-05-21 17:32:37,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:37,235 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:37,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:37,249 INFO L225 Difference]: With dead ends: 16508 [2021-05-21 17:32:37,249 INFO L226 Difference]: Without dead ends: 16508 [2021-05-21 17:32:37,250 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1167.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:37,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16508 states. [2021-05-21 17:32:37,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16508 to 5944. [2021-05-21 17:32:37,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5944 states, 5942 states have (on average 2.6699764389094582) internal successors, (15865), 5943 states have internal predecessors, (15865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:37,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5944 states to 5944 states and 15865 transitions. [2021-05-21 17:32:37,351 INFO L78 Accepts]: Start accepts. Automaton has 5944 states and 15865 transitions. Word has length 114 [2021-05-21 17:32:37,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:37,351 INFO L482 AbstractCegarLoop]: Abstraction has 5944 states and 15865 transitions. [2021-05-21 17:32:37,351 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:37,351 INFO L276 IsEmpty]: Start isEmpty. Operand 5944 states and 15865 transitions. [2021-05-21 17:32:37,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:37,355 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:37,355 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:37,355 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-05-21 17:32:37,355 INFO L430 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:37,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:37,356 INFO L82 PathProgramCache]: Analyzing trace with hash -190718448, now seen corresponding path program 134 times [2021-05-21 17:32:37,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:37,356 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076536001] [2021-05-21 17:32:37,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:37,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:32:37,629 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:37,629 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076536001] [2021-05-21 17:32:37,629 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076536001] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:37,629 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:37,629 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:37,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473027821] [2021-05-21 17:32:37,630 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:37,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:37,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:37,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:37,630 INFO L87 Difference]: Start difference. First operand 5944 states and 15865 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:38,436 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:38,598 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:32:38,764 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:32:38,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:38,891 INFO L93 Difference]: Finished difference Result 17354 states and 44715 transitions. [2021-05-21 17:32:38,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:38,891 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:38,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:38,905 INFO L225 Difference]: With dead ends: 17354 [2021-05-21 17:32:38,905 INFO L226 Difference]: Without dead ends: 17354 [2021-05-21 17:32:38,905 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1158.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:38,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17354 states. [2021-05-21 17:32:39,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17354 to 5928. [2021-05-21 17:32:39,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5928 states, 5926 states have (on average 2.6694228822139725) internal successors, (15819), 5927 states have internal predecessors, (15819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:39,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5928 states to 5928 states and 15819 transitions. [2021-05-21 17:32:39,050 INFO L78 Accepts]: Start accepts. Automaton has 5928 states and 15819 transitions. Word has length 114 [2021-05-21 17:32:39,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:39,050 INFO L482 AbstractCegarLoop]: Abstraction has 5928 states and 15819 transitions. [2021-05-21 17:32:39,051 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:39,051 INFO L276 IsEmpty]: Start isEmpty. Operand 5928 states and 15819 transitions. [2021-05-21 17:32:39,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:39,054 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:39,054 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:39,055 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-05-21 17:32:39,055 INFO L430 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:39,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:39,055 INFO L82 PathProgramCache]: Analyzing trace with hash 607145012, now seen corresponding path program 135 times [2021-05-21 17:32:39,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:39,055 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060299539] [2021-05-21 17:32:39,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:39,325 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 17:32:39,325 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:39,325 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060299539] [2021-05-21 17:32:39,325 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060299539] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:39,325 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:39,325 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:39,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983991391] [2021-05-21 17:32:39,325 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:39,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:39,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:39,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:39,326 INFO L87 Difference]: Start difference. First operand 5928 states and 15819 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:40,131 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:40,291 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:32:40,459 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:32:40,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:40,597 INFO L93 Difference]: Finished difference Result 20560 states and 52829 transitions. [2021-05-21 17:32:40,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:40,597 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:40,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:40,614 INFO L225 Difference]: With dead ends: 20560 [2021-05-21 17:32:40,614 INFO L226 Difference]: Without dead ends: 20560 [2021-05-21 17:32:40,615 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1157.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:40,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20560 states. [2021-05-21 17:32:40,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20560 to 5944. [2021-05-21 17:32:40,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5944 states, 5942 states have (on average 2.6699764389094582) internal successors, (15865), 5943 states have internal predecessors, (15865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:40,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5944 states to 5944 states and 15865 transitions. [2021-05-21 17:32:40,731 INFO L78 Accepts]: Start accepts. Automaton has 5944 states and 15865 transitions. Word has length 114 [2021-05-21 17:32:40,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:40,731 INFO L482 AbstractCegarLoop]: Abstraction has 5944 states and 15865 transitions. [2021-05-21 17:32:40,731 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:40,731 INFO L276 IsEmpty]: Start isEmpty. Operand 5944 states and 15865 transitions. [2021-05-21 17:32:40,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:40,735 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:40,735 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:40,736 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-05-21 17:32:40,736 INFO L430 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:40,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:40,736 INFO L82 PathProgramCache]: Analyzing trace with hash 358598032, now seen corresponding path program 136 times [2021-05-21 17:32:40,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:40,736 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645675864] [2021-05-21 17:32:40,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:41,007 INFO 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 17:32:41,007 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:41,007 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645675864] [2021-05-21 17:32:41,007 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645675864] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:41,007 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:41,007 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:41,007 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726039110] [2021-05-21 17:32:41,008 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:41,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:41,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:41,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:41,008 INFO L87 Difference]: Start difference. First operand 5944 states and 15865 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:41,831 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:41,981 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:32:42,151 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:32:42,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:42,279 INFO L93 Difference]: Finished difference Result 17518 states and 45167 transitions. [2021-05-21 17:32:42,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:42,279 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:42,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:42,295 INFO L225 Difference]: With dead ends: 17518 [2021-05-21 17:32:42,295 INFO L226 Difference]: Without dead ends: 17518 [2021-05-21 17:32:42,295 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1162.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:42,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17518 states. [2021-05-21 17:32:42,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17518 to 5912. [2021-05-21 17:32:42,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5912 states, 5910 states have (on average 2.668866328257191) internal successors, (15773), 5911 states have internal predecessors, (15773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:42,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5912 states to 5912 states and 15773 transitions. [2021-05-21 17:32:42,406 INFO L78 Accepts]: Start accepts. Automaton has 5912 states and 15773 transitions. Word has length 114 [2021-05-21 17:32:42,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:42,406 INFO L482 AbstractCegarLoop]: Abstraction has 5912 states and 15773 transitions. [2021-05-21 17:32:42,406 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:42,406 INFO L276 IsEmpty]: Start isEmpty. Operand 5912 states and 15773 transitions. [2021-05-21 17:32:42,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:42,410 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:42,410 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:42,410 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-05-21 17:32:42,410 INFO L430 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:42,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:42,411 INFO L82 PathProgramCache]: Analyzing trace with hash -661672274, now seen corresponding path program 137 times [2021-05-21 17:32:42,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:42,411 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952351811] [2021-05-21 17:32:42,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:42,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:32:42,693 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:42,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952351811] [2021-05-21 17:32:42,693 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952351811] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:42,693 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:42,693 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:42,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611782535] [2021-05-21 17:32:42,693 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:42,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:42,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:42,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:42,694 INFO L87 Difference]: Start difference. First operand 5912 states and 15773 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:43,496 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:43,660 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:32:43,833 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:32:43,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:43,958 INFO L93 Difference]: Finished difference Result 16638 states and 43040 transitions. [2021-05-21 17:32:43,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:43,959 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:43,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:43,972 INFO L225 Difference]: With dead ends: 16638 [2021-05-21 17:32:43,973 INFO L226 Difference]: Without dead ends: 16638 [2021-05-21 17:32:43,973 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1169.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:44,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16638 states. [2021-05-21 17:32:44,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16638 to 5960. [2021-05-21 17:32:44,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5960 states, 5958 states have (on average 2.6705270224907687) internal successors, (15911), 5959 states have internal predecessors, (15911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:44,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5960 states to 5960 states and 15911 transitions. [2021-05-21 17:32:44,081 INFO L78 Accepts]: Start accepts. Automaton has 5960 states and 15911 transitions. Word has length 114 [2021-05-21 17:32:44,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:44,082 INFO L482 AbstractCegarLoop]: Abstraction has 5960 states and 15911 transitions. [2021-05-21 17:32:44,082 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:44,082 INFO L276 IsEmpty]: Start isEmpty. Operand 5960 states and 15911 transitions. [2021-05-21 17:32:44,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:44,086 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:44,086 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:44,086 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-05-21 17:32:44,086 INFO L430 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:44,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:44,086 INFO L82 PathProgramCache]: Analyzing trace with hash -910219254, now seen corresponding path program 138 times [2021-05-21 17:32:44,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:44,086 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647079795] [2021-05-21 17:32:44,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:44,365 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 17:32:44,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:44,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647079795] [2021-05-21 17:32:44,365 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647079795] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:44,365 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:44,366 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:44,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345521941] [2021-05-21 17:32:44,366 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:44,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:44,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:44,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:44,366 INFO L87 Difference]: Start difference. First operand 5960 states and 15911 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:45,053 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:32:45,206 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:45,360 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:32:45,533 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:32:45,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:45,658 INFO L93 Difference]: Finished difference Result 16474 states and 42638 transitions. [2021-05-21 17:32:45,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:45,658 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:45,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:45,672 INFO L225 Difference]: With dead ends: 16474 [2021-05-21 17:32:45,672 INFO L226 Difference]: Without dead ends: 16474 [2021-05-21 17:32:45,672 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1164.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:45,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16474 states. [2021-05-21 17:32:45,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16474 to 5944. [2021-05-21 17:32:45,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5944 states, 5942 states have (on average 2.6699764389094582) internal successors, (15865), 5943 states have internal predecessors, (15865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:45,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5944 states to 5944 states and 15865 transitions. [2021-05-21 17:32:45,771 INFO L78 Accepts]: Start accepts. Automaton has 5944 states and 15865 transitions. Word has length 114 [2021-05-21 17:32:45,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:45,771 INFO L482 AbstractCegarLoop]: Abstraction has 5944 states and 15865 transitions. [2021-05-21 17:32:45,771 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:45,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5944 states and 15865 transitions. [2021-05-21 17:32:45,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:45,775 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:45,775 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:45,775 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-05-21 17:32:45,775 INFO L430 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:45,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:45,775 INFO L82 PathProgramCache]: Analyzing trace with hash -2067036558, now seen corresponding path program 139 times [2021-05-21 17:32:45,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:45,775 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193737738] [2021-05-21 17:32:45,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:46,059 INFO 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 17:32:46,059 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:46,059 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193737738] [2021-05-21 17:32:46,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193737738] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:46,059 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:46,060 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:46,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737576078] [2021-05-21 17:32:46,060 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:46,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:46,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:46,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:46,060 INFO L87 Difference]: Start difference. First operand 5944 states and 15865 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:46,879 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:32:47,043 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:32:47,218 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:32:47,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:47,333 INFO L93 Difference]: Finished difference Result 13532 states and 35210 transitions. [2021-05-21 17:32:47,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:47,333 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:47,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:47,344 INFO L225 Difference]: With dead ends: 13532 [2021-05-21 17:32:47,345 INFO L226 Difference]: Without dead ends: 13532 [2021-05-21 17:32:47,345 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1164.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:47,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13532 states. [2021-05-21 17:32:47,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13532 to 5784. [2021-05-21 17:32:47,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 5782 states have (on average 2.6643030093393287) internal successors, (15405), 5783 states have internal predecessors, (15405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:47,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 15405 transitions. [2021-05-21 17:32:47,433 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 15405 transitions. Word has length 114 [2021-05-21 17:32:47,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:47,433 INFO L482 AbstractCegarLoop]: Abstraction has 5784 states and 15405 transitions. [2021-05-21 17:32:47,433 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:47,433 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 15405 transitions. [2021-05-21 17:32:47,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:47,437 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:47,437 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:47,437 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-05-21 17:32:47,437 INFO L430 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:47,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:47,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1166052334, now seen corresponding path program 140 times [2021-05-21 17:32:47,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:47,438 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677214630] [2021-05-21 17:32:47,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:47,717 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 17:32:47,717 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:47,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677214630] [2021-05-21 17:32:47,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677214630] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:47,717 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:47,717 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:47,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011092075] [2021-05-21 17:32:47,718 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:47,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:47,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:47,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:47,718 INFO L87 Difference]: Start difference. First operand 5784 states and 15405 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:48,515 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:32:48,676 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:32:48,848 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:32:48,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:48,982 INFO L93 Difference]: Finished difference Result 11386 states and 29736 transitions. [2021-05-21 17:32:48,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:48,982 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:48,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:48,989 INFO L225 Difference]: With dead ends: 11386 [2021-05-21 17:32:48,990 INFO L226 Difference]: Without dead ends: 11386 [2021-05-21 17:32:48,990 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1152.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:49,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11386 states. [2021-05-21 17:32:49,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11386 to 5940. [2021-05-21 17:32:49,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5940 states, 5938 states have (on average 2.6700909397103403) internal successors, (15855), 5939 states have internal predecessors, (15855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:49,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5940 states to 5940 states and 15855 transitions. [2021-05-21 17:32:49,064 INFO L78 Accepts]: Start accepts. Automaton has 5940 states and 15855 transitions. Word has length 114 [2021-05-21 17:32:49,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:49,064 INFO L482 AbstractCegarLoop]: Abstraction has 5940 states and 15855 transitions. [2021-05-21 17:32:49,064 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:49,064 INFO L276 IsEmpty]: Start isEmpty. Operand 5940 states and 15855 transitions. [2021-05-21 17:32:49,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:49,068 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:49,068 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:49,068 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-05-21 17:32:49,068 INFO L430 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:49,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:49,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1215678226, now seen corresponding path program 141 times [2021-05-21 17:32:49,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:49,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952826572] [2021-05-21 17:32:49,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:49,347 INFO 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 17:32:49,348 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:49,348 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952826572] [2021-05-21 17:32:49,348 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952826572] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:49,348 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:49,348 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:49,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322694727] [2021-05-21 17:32:49,348 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:49,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:49,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:49,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:49,348 INFO L87 Difference]: Start difference. First operand 5940 states and 15855 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:50,154 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:50,302 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:32:50,476 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:32:50,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:50,596 INFO L93 Difference]: Finished difference Result 14010 states and 36459 transitions. [2021-05-21 17:32:50,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:50,597 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:50,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:50,608 INFO L225 Difference]: With dead ends: 14010 [2021-05-21 17:32:50,608 INFO L226 Difference]: Without dead ends: 14010 [2021-05-21 17:32:50,608 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1153.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:50,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14010 states. [2021-05-21 17:32:50,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14010 to 5956. [2021-05-21 17:32:50,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5956 states, 5954 states have (on average 2.670641585488747) internal successors, (15901), 5955 states have internal predecessors, (15901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:50,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5956 states to 5956 states and 15901 transitions. [2021-05-21 17:32:50,698 INFO L78 Accepts]: Start accepts. Automaton has 5956 states and 15901 transitions. Word has length 114 [2021-05-21 17:32:50,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:50,698 INFO L482 AbstractCegarLoop]: Abstraction has 5956 states and 15901 transitions. [2021-05-21 17:32:50,698 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:50,698 INFO L276 IsEmpty]: Start isEmpty. Operand 5956 states and 15901 transitions. [2021-05-21 17:32:50,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:50,702 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:50,702 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:50,703 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-05-21 17:32:50,703 INFO L430 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:50,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:50,703 INFO L82 PathProgramCache]: Analyzing trace with hash 919796396, now seen corresponding path program 142 times [2021-05-21 17:32:50,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:50,703 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997225712] [2021-05-21 17:32:50,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:50,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:50,984 INFO 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 17:32:50,984 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:50,984 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997225712] [2021-05-21 17:32:50,984 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997225712] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:50,984 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:50,984 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:50,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395167124] [2021-05-21 17:32:50,985 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:50,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:50,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:50,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:50,985 INFO L87 Difference]: Start difference. First operand 5956 states and 15901 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:51,682 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:32:51,828 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:51,989 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:32:52,158 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:32:52,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:52,271 INFO L93 Difference]: Finished difference Result 12290 states and 31747 transitions. [2021-05-21 17:32:52,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:52,272 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:52,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:52,282 INFO L225 Difference]: With dead ends: 12290 [2021-05-21 17:32:52,283 INFO L226 Difference]: Without dead ends: 12290 [2021-05-21 17:32:52,283 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1200.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:52,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12290 states. [2021-05-21 17:32:52,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12290 to 5908. [2021-05-21 17:32:52,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5908 states, 5906 states have (on average 2.6689806975956656) internal successors, (15763), 5907 states have internal predecessors, (15763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:52,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5908 states to 5908 states and 15763 transitions. [2021-05-21 17:32:52,367 INFO L78 Accepts]: Start accepts. Automaton has 5908 states and 15763 transitions. Word has length 114 [2021-05-21 17:32:52,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:52,367 INFO L482 AbstractCegarLoop]: Abstraction has 5908 states and 15763 transitions. [2021-05-21 17:32:52,367 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:52,367 INFO L276 IsEmpty]: Start isEmpty. Operand 5908 states and 15763 transitions. [2021-05-21 17:32:52,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:52,371 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:52,371 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:52,371 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-05-21 17:32:52,372 INFO L430 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:52,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:52,372 INFO L82 PathProgramCache]: Analyzing trace with hash -893931602, now seen corresponding path program 143 times [2021-05-21 17:32:52,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:52,372 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158349297] [2021-05-21 17:32:52,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:52,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:52,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:32:52,659 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:52,659 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158349297] [2021-05-21 17:32:52,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158349297] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:52,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:52,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:52,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715772910] [2021-05-21 17:32:52,659 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:52,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:52,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:52,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:52,660 INFO L87 Difference]: Start difference. First operand 5908 states and 15763 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:53,484 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:53,636 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:32:53,810 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:32:53,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:53,968 INFO L93 Difference]: Finished difference Result 15366 states and 39676 transitions. [2021-05-21 17:32:53,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:53,968 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:53,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:53,980 INFO L225 Difference]: With dead ends: 15366 [2021-05-21 17:32:53,980 INFO L226 Difference]: Without dead ends: 15366 [2021-05-21 17:32:53,980 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1149.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:54,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15366 states. [2021-05-21 17:32:54,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15366 to 5940. [2021-05-21 17:32:54,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5940 states, 5938 states have (on average 2.6700909397103403) internal successors, (15855), 5939 states have internal predecessors, (15855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:54,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5940 states to 5940 states and 15855 transitions. [2021-05-21 17:32:54,067 INFO L78 Accepts]: Start accepts. Automaton has 5940 states and 15855 transitions. Word has length 114 [2021-05-21 17:32:54,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:54,067 INFO L482 AbstractCegarLoop]: Abstraction has 5940 states and 15855 transitions. [2021-05-21 17:32:54,067 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:54,068 INFO L276 IsEmpty]: Start isEmpty. Operand 5940 states and 15855 transitions. [2021-05-21 17:32:54,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:54,071 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:54,071 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] [2021-05-21 17:32:54,072 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-05-21 17:32:54,072 INFO L430 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:54,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:54,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1241543020, now seen corresponding path program 144 times [2021-05-21 17:32:54,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:54,072 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28781367] [2021-05-21 17:32:54,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:54,342 INFO 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 17:32:54,342 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:54,342 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28781367] [2021-05-21 17:32:54,342 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28781367] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:54,342 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:54,342 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:54,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309781396] [2021-05-21 17:32:54,342 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:54,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:54,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:54,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:54,343 INFO L87 Difference]: Start difference. First operand 5940 states and 15855 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:55,022 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:32:55,157 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:55,321 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:32:55,488 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:32:55,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:55,616 INFO L93 Difference]: Finished difference Result 16212 states and 41536 transitions. [2021-05-21 17:32:55,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:55,616 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:55,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:55,630 INFO L225 Difference]: With dead ends: 16212 [2021-05-21 17:32:55,630 INFO L226 Difference]: Without dead ends: 16212 [2021-05-21 17:32:55,630 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1167.0ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:55,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16212 states. [2021-05-21 17:32:55,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16212 to 5924. [2021-05-21 17:32:55,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5924 states, 5922 states have (on average 2.6695373184734885) internal successors, (15809), 5923 states have internal predecessors, (15809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:55,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5924 states to 5924 states and 15809 transitions. [2021-05-21 17:32:55,735 INFO L78 Accepts]: Start accepts. Automaton has 5924 states and 15809 transitions. Word has length 114 [2021-05-21 17:32:55,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:55,735 INFO L482 AbstractCegarLoop]: Abstraction has 5924 states and 15809 transitions. [2021-05-21 17:32:55,736 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:55,736 INFO L276 IsEmpty]: Start isEmpty. Operand 5924 states and 15809 transitions. [2021-05-21 17:32:55,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:55,740 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:55,740 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:55,740 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-05-21 17:32:55,740 INFO L430 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:55,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:55,740 INFO L82 PathProgramCache]: Analyzing trace with hash 2039406480, now seen corresponding path program 145 times [2021-05-21 17:32:55,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:55,740 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671630652] [2021-05-21 17:32:55,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:55,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:56,012 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 17:32:56,012 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:56,012 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671630652] [2021-05-21 17:32:56,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671630652] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:56,012 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:56,012 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:56,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194751493] [2021-05-21 17:32:56,012 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:56,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:56,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:56,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:56,013 INFO L87 Difference]: Start difference. First operand 5924 states and 15809 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:56,849 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:57,010 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:32:57,190 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:32:57,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:57,341 INFO L93 Difference]: Finished difference Result 15512 states and 39907 transitions. [2021-05-21 17:32:57,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:57,341 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:57,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:57,354 INFO L225 Difference]: With dead ends: 15512 [2021-05-21 17:32:57,354 INFO L226 Difference]: Without dead ends: 15512 [2021-05-21 17:32:57,354 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1162.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:57,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15512 states. [2021-05-21 17:32:57,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15512 to 5940. [2021-05-21 17:32:57,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5940 states, 5938 states have (on average 2.6700909397103403) internal successors, (15855), 5939 states have internal predecessors, (15855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:57,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5940 states to 5940 states and 15855 transitions. [2021-05-21 17:32:57,450 INFO L78 Accepts]: Start accepts. Automaton has 5940 states and 15855 transitions. Word has length 114 [2021-05-21 17:32:57,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:57,450 INFO L482 AbstractCegarLoop]: Abstraction has 5940 states and 15855 transitions. [2021-05-21 17:32:57,450 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:57,450 INFO L276 IsEmpty]: Start isEmpty. Operand 5940 states and 15855 transitions. [2021-05-21 17:32:57,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:57,454 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:57,454 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] [2021-05-21 17:32:57,454 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-05-21 17:32:57,454 INFO L430 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:57,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:57,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1790859500, now seen corresponding path program 146 times [2021-05-21 17:32:57,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:57,455 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741589214] [2021-05-21 17:32:57,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:57,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:57,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:32:57,721 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:57,721 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741589214] [2021-05-21 17:32:57,721 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741589214] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:57,721 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:57,721 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:57,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372410864] [2021-05-21 17:32:57,721 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:57,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:57,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:57,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:57,722 INFO L87 Difference]: Start difference. First operand 5940 states and 15855 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:58,526 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:32:58,675 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:32:58,846 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:32:58,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:32:58,964 INFO L93 Difference]: Finished difference Result 12470 states and 32245 transitions. [2021-05-21 17:32:58,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:32:58,964 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:32:58,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:32:58,973 INFO L225 Difference]: With dead ends: 12470 [2021-05-21 17:32:58,973 INFO L226 Difference]: Without dead ends: 12470 [2021-05-21 17:32:58,974 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1143.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:32:58,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12470 states. [2021-05-21 17:32:59,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12470 to 5876. [2021-05-21 17:32:59,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5876 states, 5874 states have (on average 2.6678583588695948) internal successors, (15671), 5875 states have internal predecessors, (15671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:59,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5876 states to 5876 states and 15671 transitions. [2021-05-21 17:32:59,054 INFO L78 Accepts]: Start accepts. Automaton has 5876 states and 15671 transitions. Word has length 114 [2021-05-21 17:32:59,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:32:59,054 INFO L482 AbstractCegarLoop]: Abstraction has 5876 states and 15671 transitions. [2021-05-21 17:32:59,054 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:32:59,054 INFO L276 IsEmpty]: Start isEmpty. Operand 5876 states and 15671 transitions. [2021-05-21 17:32:59,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:32:59,058 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:32:59,058 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:32:59,058 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-05-21 17:32:59,058 INFO L430 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:32:59,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:32:59,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1029133776, now seen corresponding path program 147 times [2021-05-21 17:32:59,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:32:59,059 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265713093] [2021-05-21 17:32:59,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:32:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:32:59,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:32:59,324 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:32:59,324 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265713093] [2021-05-21 17:32:59,324 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265713093] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:32:59,324 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:32:59,324 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:32:59,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952347429] [2021-05-21 17:32:59,324 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:32:59,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:32:59,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:32:59,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:32:59,324 INFO L87 Difference]: Start difference. First operand 5876 states and 15671 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:00,127 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:00,277 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:33:00,447 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:33:00,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:00,576 INFO L93 Difference]: Finished difference Result 15894 states and 41146 transitions. [2021-05-21 17:33:00,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:00,576 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:00,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:00,590 INFO L225 Difference]: With dead ends: 15894 [2021-05-21 17:33:00,590 INFO L226 Difference]: Without dead ends: 15894 [2021-05-21 17:33:00,590 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1138.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:00,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15894 states. [2021-05-21 17:33:00,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15894 to 5940. [2021-05-21 17:33:00,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5940 states, 5938 states have (on average 2.6700909397103403) internal successors, (15855), 5939 states have internal predecessors, (15855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:00,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5940 states to 5940 states and 15855 transitions. [2021-05-21 17:33:00,690 INFO L78 Accepts]: Start accepts. Automaton has 5940 states and 15855 transitions. Word has length 114 [2021-05-21 17:33:00,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:00,690 INFO L482 AbstractCegarLoop]: Abstraction has 5940 states and 15855 transitions. [2021-05-21 17:33:00,690 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:00,690 INFO L276 IsEmpty]: Start isEmpty. Operand 5940 states and 15855 transitions. [2021-05-21 17:33:00,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:00,694 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:00,694 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:00,694 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-05-21 17:33:00,694 INFO L430 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:00,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:00,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1106340846, now seen corresponding path program 148 times [2021-05-21 17:33:00,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:00,695 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528413479] [2021-05-21 17:33:00,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:00,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:00,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:33:00,965 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:00,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528413479] [2021-05-21 17:33:00,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528413479] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:00,965 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:00,965 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:00,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825597433] [2021-05-21 17:33:00,966 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:00,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:00,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:00,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:00,966 INFO L87 Difference]: Start difference. First operand 5940 states and 15855 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:01,679 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:33:01,816 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:01,984 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:33:02,154 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:33:02,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:02,297 INFO L93 Difference]: Finished difference Result 16740 states and 43006 transitions. [2021-05-21 17:33:02,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:02,298 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:02,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:02,312 INFO L225 Difference]: With dead ends: 16740 [2021-05-21 17:33:02,312 INFO L226 Difference]: Without dead ends: 16740 [2021-05-21 17:33:02,312 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1178.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:02,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16740 states. [2021-05-21 17:33:02,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16740 to 5924. [2021-05-21 17:33:02,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5924 states, 5922 states have (on average 2.6695373184734885) internal successors, (15809), 5923 states have internal predecessors, (15809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:02,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5924 states to 5924 states and 15809 transitions. [2021-05-21 17:33:02,419 INFO L78 Accepts]: Start accepts. Automaton has 5924 states and 15809 transitions. Word has length 114 [2021-05-21 17:33:02,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:02,419 INFO L482 AbstractCegarLoop]: Abstraction has 5924 states and 15809 transitions. [2021-05-21 17:33:02,419 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:02,419 INFO L276 IsEmpty]: Start isEmpty. Operand 5924 states and 15809 transitions. [2021-05-21 17:33:02,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:02,424 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:02,424 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:02,424 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-05-21 17:33:02,424 INFO L430 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:02,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:02,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1904204306, now seen corresponding path program 149 times [2021-05-21 17:33:02,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:02,424 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539966440] [2021-05-21 17:33:02,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:02,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:02,695 INFO 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 17:33:02,695 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:02,695 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539966440] [2021-05-21 17:33:02,695 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539966440] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:02,695 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:02,695 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:02,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268693709] [2021-05-21 17:33:02,695 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:02,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:02,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:02,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:02,696 INFO L87 Difference]: Start difference. First operand 5924 states and 15809 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:03,394 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:33:03,536 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:03,699 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:33:03,891 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:33:04,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:04,048 INFO L93 Difference]: Finished difference Result 19946 states and 51120 transitions. [2021-05-21 17:33:04,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:04,048 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:04,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:04,065 INFO L225 Difference]: With dead ends: 19946 [2021-05-21 17:33:04,065 INFO L226 Difference]: Without dead ends: 19946 [2021-05-21 17:33:04,066 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1186.9ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:04,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19946 states. [2021-05-21 17:33:04,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19946 to 5940. [2021-05-21 17:33:04,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5940 states, 5938 states have (on average 2.6700909397103403) internal successors, (15855), 5939 states have internal predecessors, (15855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:04,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5940 states to 5940 states and 15855 transitions. [2021-05-21 17:33:04,186 INFO L78 Accepts]: Start accepts. Automaton has 5940 states and 15855 transitions. Word has length 114 [2021-05-21 17:33:04,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:04,186 INFO L482 AbstractCegarLoop]: Abstraction has 5940 states and 15855 transitions. [2021-05-21 17:33:04,186 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:04,186 INFO L276 IsEmpty]: Start isEmpty. Operand 5940 states and 15855 transitions. [2021-05-21 17:33:04,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:04,191 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:04,191 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:04,191 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-05-21 17:33:04,191 INFO L430 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:04,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:04,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1655657326, now seen corresponding path program 150 times [2021-05-21 17:33:04,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:04,191 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442846539] [2021-05-21 17:33:04,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:04,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:33:04,459 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:04,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442846539] [2021-05-21 17:33:04,459 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442846539] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:04,459 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:04,459 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:04,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818151973] [2021-05-21 17:33:04,459 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:04,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:04,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:04,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:04,460 INFO L87 Difference]: Start difference. First operand 5940 states and 15855 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:05,159 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:33:05,299 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:05,454 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:33:05,628 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:33:05,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:05,760 INFO L93 Difference]: Finished difference Result 16904 states and 43458 transitions. [2021-05-21 17:33:05,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:05,760 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:05,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:05,775 INFO L225 Difference]: With dead ends: 16904 [2021-05-21 17:33:05,775 INFO L226 Difference]: Without dead ends: 16904 [2021-05-21 17:33:05,775 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1160.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:05,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16904 states. [2021-05-21 17:33:05,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16904 to 5908. [2021-05-21 17:33:05,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5908 states, 5906 states have (on average 2.6689806975956656) internal successors, (15763), 5907 states have internal predecessors, (15763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:05,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5908 states to 5908 states and 15763 transitions. [2021-05-21 17:33:05,884 INFO L78 Accepts]: Start accepts. Automaton has 5908 states and 15763 transitions. Word has length 114 [2021-05-21 17:33:05,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:05,884 INFO L482 AbstractCegarLoop]: Abstraction has 5908 states and 15763 transitions. [2021-05-21 17:33:05,884 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:05,884 INFO L276 IsEmpty]: Start isEmpty. Operand 5908 states and 15763 transitions. [2021-05-21 17:33:05,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:05,888 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:05,888 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, 1] [2021-05-21 17:33:05,888 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-05-21 17:33:05,888 INFO L430 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:05,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:05,889 INFO L82 PathProgramCache]: Analyzing trace with hash 635387020, now seen corresponding path program 151 times [2021-05-21 17:33:05,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:05,889 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960973608] [2021-05-21 17:33:05,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:06,200 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 17:33:06,200 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:06,200 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960973608] [2021-05-21 17:33:06,200 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960973608] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:06,200 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:06,200 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:06,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062854085] [2021-05-21 17:33:06,200 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:06,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:06,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:06,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:06,201 INFO L87 Difference]: Start difference. First operand 5908 states and 15763 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:07,016 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:07,178 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:33:07,348 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:33:07,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:07,475 INFO L93 Difference]: Finished difference Result 16024 states and 41331 transitions. [2021-05-21 17:33:07,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:07,475 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:07,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:07,488 INFO L225 Difference]: With dead ends: 16024 [2021-05-21 17:33:07,489 INFO L226 Difference]: Without dead ends: 16024 [2021-05-21 17:33:07,489 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1206.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:07,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16024 states. [2021-05-21 17:33:07,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16024 to 5956. [2021-05-21 17:33:07,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5956 states, 5954 states have (on average 2.670641585488747) internal successors, (15901), 5955 states have internal predecessors, (15901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:07,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5956 states to 5956 states and 15901 transitions. [2021-05-21 17:33:07,588 INFO L78 Accepts]: Start accepts. Automaton has 5956 states and 15901 transitions. Word has length 114 [2021-05-21 17:33:07,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:07,589 INFO L482 AbstractCegarLoop]: Abstraction has 5956 states and 15901 transitions. [2021-05-21 17:33:07,589 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:07,589 INFO L276 IsEmpty]: Start isEmpty. Operand 5956 states and 15901 transitions. [2021-05-21 17:33:07,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:07,593 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:07,593 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:07,593 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-05-21 17:33:07,593 INFO L430 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:07,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:07,593 INFO L82 PathProgramCache]: Analyzing trace with hash 386840040, now seen corresponding path program 152 times [2021-05-21 17:33:07,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:07,593 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188404126] [2021-05-21 17:33:07,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:07,867 INFO 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 17:33:07,867 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:07,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188404126] [2021-05-21 17:33:07,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188404126] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:07,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:07,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:07,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967557630] [2021-05-21 17:33:07,868 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:07,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:07,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:07,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:07,868 INFO L87 Difference]: Start difference. First operand 5956 states and 15901 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:08,679 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:08,845 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:33:09,017 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:33:09,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:09,135 INFO L93 Difference]: Finished difference Result 15860 states and 40929 transitions. [2021-05-21 17:33:09,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:09,135 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:09,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:09,148 INFO L225 Difference]: With dead ends: 15860 [2021-05-21 17:33:09,148 INFO L226 Difference]: Without dead ends: 15860 [2021-05-21 17:33:09,148 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1172.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:09,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15860 states. [2021-05-21 17:33:09,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15860 to 5940. [2021-05-21 17:33:09,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5940 states, 5938 states have (on average 2.6700909397103403) internal successors, (15855), 5939 states have internal predecessors, (15855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:09,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5940 states to 5940 states and 15855 transitions. [2021-05-21 17:33:09,246 INFO L78 Accepts]: Start accepts. Automaton has 5940 states and 15855 transitions. Word has length 114 [2021-05-21 17:33:09,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:09,246 INFO L482 AbstractCegarLoop]: Abstraction has 5940 states and 15855 transitions. [2021-05-21 17:33:09,246 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:09,246 INFO L276 IsEmpty]: Start isEmpty. Operand 5940 states and 15855 transitions. [2021-05-21 17:33:09,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:09,250 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:09,250 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] [2021-05-21 17:33:09,250 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-05-21 17:33:09,250 INFO L430 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:09,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:09,253 INFO L82 PathProgramCache]: Analyzing trace with hash -769977264, now seen corresponding path program 153 times [2021-05-21 17:33:09,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:09,253 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629398974] [2021-05-21 17:33:09,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:09,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:33:09,530 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:09,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629398974] [2021-05-21 17:33:09,530 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629398974] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:09,530 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:09,531 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:09,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627146994] [2021-05-21 17:33:09,531 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:09,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:09,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:09,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:09,531 INFO L87 Difference]: Start difference. First operand 5940 states and 15855 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:10,333 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:33:10,496 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:33:10,668 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:33:10,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:10,782 INFO L93 Difference]: Finished difference Result 12918 states and 33501 transitions. [2021-05-21 17:33:10,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:10,782 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:10,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:10,792 INFO L225 Difference]: With dead ends: 12918 [2021-05-21 17:33:10,792 INFO L226 Difference]: Without dead ends: 12918 [2021-05-21 17:33:10,793 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1142.3ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:10,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12918 states. [2021-05-21 17:33:10,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12918 to 5812. [2021-05-21 17:33:10,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5812 states, 5810 states have (on average 2.665576592082616) internal successors, (15487), 5811 states have internal predecessors, (15487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:10,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5812 states to 5812 states and 15487 transitions. [2021-05-21 17:33:10,876 INFO L78 Accepts]: Start accepts. Automaton has 5812 states and 15487 transitions. Word has length 114 [2021-05-21 17:33:10,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:10,876 INFO L482 AbstractCegarLoop]: Abstraction has 5812 states and 15487 transitions. [2021-05-21 17:33:10,876 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:10,876 INFO L276 IsEmpty]: Start isEmpty. Operand 5812 states and 15487 transitions. [2021-05-21 17:33:10,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:10,880 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:10,880 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] [2021-05-21 17:33:10,880 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-05-21 17:33:10,880 INFO L430 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:10,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:10,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1442527378, now seen corresponding path program 154 times [2021-05-21 17:33:10,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:10,881 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676513916] [2021-05-21 17:33:10,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:11,170 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 17:33:11,171 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:11,171 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676513916] [2021-05-21 17:33:11,171 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676513916] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:11,171 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:11,171 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:11,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053844973] [2021-05-21 17:33:11,171 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:11,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:11,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:11,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:11,171 INFO L87 Difference]: Start difference. First operand 5812 states and 15487 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:11,990 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:12,141 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:33:12,310 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:33:12,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:12,438 INFO L93 Difference]: Finished difference Result 10882 states and 28326 transitions. [2021-05-21 17:33:12,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:12,439 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:12,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:12,447 INFO L225 Difference]: With dead ends: 10882 [2021-05-21 17:33:12,447 INFO L226 Difference]: Without dead ends: 10882 [2021-05-21 17:33:12,447 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1170.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:12,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10882 states. [2021-05-21 17:33:12,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10882 to 5890. [2021-05-21 17:33:12,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5890 states, 5888 states have (on average 2.6684782608695654) internal successors, (15712), 5889 states have internal predecessors, (15712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:12,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5890 states to 5890 states and 15712 transitions. [2021-05-21 17:33:12,521 INFO L78 Accepts]: Start accepts. Automaton has 5890 states and 15712 transitions. Word has length 114 [2021-05-21 17:33:12,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:12,521 INFO L482 AbstractCegarLoop]: Abstraction has 5890 states and 15712 transitions. [2021-05-21 17:33:12,521 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:12,521 INFO L276 IsEmpty]: Start isEmpty. Operand 5890 states and 15712 transitions. [2021-05-21 17:33:12,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:12,525 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:12,525 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:12,525 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-05-21 17:33:12,526 INFO L430 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:12,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:12,526 INFO L82 PathProgramCache]: Analyzing trace with hash -716965296, now seen corresponding path program 155 times [2021-05-21 17:33:12,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:12,526 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287627467] [2021-05-21 17:33:12,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:12,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:12,794 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 17:33:12,794 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:12,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287627467] [2021-05-21 17:33:12,794 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287627467] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:12,794 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:12,794 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:12,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905496264] [2021-05-21 17:33:12,795 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:12,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:12,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:12,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:12,795 INFO L87 Difference]: Start difference. First operand 5890 states and 15712 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:13,592 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:13,769 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:33:13,932 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:33:14,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:14,039 INFO L93 Difference]: Finished difference Result 11728 states and 30186 transitions. [2021-05-21 17:33:14,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:14,039 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:14,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:14,048 INFO L225 Difference]: With dead ends: 11728 [2021-05-21 17:33:14,048 INFO L226 Difference]: Without dead ends: 11728 [2021-05-21 17:33:14,048 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1171.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:14,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11728 states. [2021-05-21 17:33:14,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11728 to 5874. [2021-05-21 17:33:14,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5874 states, 5872 states have (on average 2.66791553133515) internal successors, (15666), 5873 states have internal predecessors, (15666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:14,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5874 states to 5874 states and 15666 transitions. [2021-05-21 17:33:14,125 INFO L78 Accepts]: Start accepts. Automaton has 5874 states and 15666 transitions. Word has length 114 [2021-05-21 17:33:14,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:14,125 INFO L482 AbstractCegarLoop]: Abstraction has 5874 states and 15666 transitions. [2021-05-21 17:33:14,125 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:14,125 INFO L276 IsEmpty]: Start isEmpty. Operand 5874 states and 15666 transitions. [2021-05-21 17:33:14,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:14,129 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:14,129 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] [2021-05-21 17:33:14,129 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-05-21 17:33:14,129 INFO L430 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:14,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:14,129 INFO L82 PathProgramCache]: Analyzing trace with hash 80898164, now seen corresponding path program 156 times [2021-05-21 17:33:14,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:14,129 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397320395] [2021-05-21 17:33:14,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:14,394 INFO 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 17:33:14,394 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:14,394 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397320395] [2021-05-21 17:33:14,394 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397320395] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:14,394 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:14,395 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:14,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594877132] [2021-05-21 17:33:14,395 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:14,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:14,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:14,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:14,395 INFO L87 Difference]: Start difference. First operand 5874 states and 15666 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:15,193 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:15,350 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:33:15,517 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:33:15,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:15,639 INFO L93 Difference]: Finished difference Result 14934 states and 38300 transitions. [2021-05-21 17:33:15,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:15,639 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:15,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:15,651 INFO L225 Difference]: With dead ends: 14934 [2021-05-21 17:33:15,651 INFO L226 Difference]: Without dead ends: 14934 [2021-05-21 17:33:15,651 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1151.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:15,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14934 states. [2021-05-21 17:33:15,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14934 to 5890. [2021-05-21 17:33:15,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5890 states, 5888 states have (on average 2.6684782608695654) internal successors, (15712), 5889 states have internal predecessors, (15712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:15,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5890 states to 5890 states and 15712 transitions. [2021-05-21 17:33:15,744 INFO L78 Accepts]: Start accepts. Automaton has 5890 states and 15712 transitions. Word has length 114 [2021-05-21 17:33:15,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:15,744 INFO L482 AbstractCegarLoop]: Abstraction has 5890 states and 15712 transitions. [2021-05-21 17:33:15,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:15,744 INFO L276 IsEmpty]: Start isEmpty. Operand 5890 states and 15712 transitions. [2021-05-21 17:33:15,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:15,748 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:15,748 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:15,748 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-05-21 17:33:15,748 INFO L430 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:15,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:15,748 INFO L82 PathProgramCache]: Analyzing trace with hash -167648816, now seen corresponding path program 157 times [2021-05-21 17:33:15,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:15,748 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042427463] [2021-05-21 17:33:15,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:16,036 INFO 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 17:33:16,036 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:16,036 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042427463] [2021-05-21 17:33:16,036 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042427463] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:16,036 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:16,036 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:16,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912437443] [2021-05-21 17:33:16,036 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:16,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:16,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:16,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:16,037 INFO L87 Difference]: Start difference. First operand 5890 states and 15712 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:16,831 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:16,979 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:33:17,146 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:33:17,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:17,249 INFO L93 Difference]: Finished difference Result 11892 states and 30638 transitions. [2021-05-21 17:33:17,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:17,249 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:17,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:17,259 INFO L225 Difference]: With dead ends: 11892 [2021-05-21 17:33:17,259 INFO L226 Difference]: Without dead ends: 11892 [2021-05-21 17:33:17,259 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1160.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:17,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11892 states. [2021-05-21 17:33:17,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11892 to 5858. [2021-05-21 17:33:17,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5858 states, 5856 states have (on average 2.6673497267759565) internal successors, (15620), 5857 states have internal predecessors, (15620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:17,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 15620 transitions. [2021-05-21 17:33:17,339 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 15620 transitions. Word has length 114 [2021-05-21 17:33:17,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:17,339 INFO L482 AbstractCegarLoop]: Abstraction has 5858 states and 15620 transitions. [2021-05-21 17:33:17,339 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:17,339 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 15620 transitions. [2021-05-21 17:33:17,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:17,343 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:17,343 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:17,343 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-05-21 17:33:17,343 INFO L430 AbstractCegarLoop]: === Iteration 164 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:17,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:17,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1187919122, now seen corresponding path program 158 times [2021-05-21 17:33:17,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:17,344 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911893449] [2021-05-21 17:33:17,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:17,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:33:17,620 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:17,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911893449] [2021-05-21 17:33:17,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911893449] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:17,620 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:17,620 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:17,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210362107] [2021-05-21 17:33:17,621 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:17,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:17,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:17,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:17,621 INFO L87 Difference]: Start difference. First operand 5858 states and 15620 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:18,438 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:18,620 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:33:18,790 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:33:18,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:18,925 INFO L93 Difference]: Finished difference Result 15414 states and 39632 transitions. [2021-05-21 17:33:18,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:18,925 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:18,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:18,937 INFO L225 Difference]: With dead ends: 15414 [2021-05-21 17:33:18,937 INFO L226 Difference]: Without dead ends: 15414 [2021-05-21 17:33:18,937 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1179.2ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:18,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15414 states. [2021-05-21 17:33:19,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15414 to 5906. [2021-05-21 17:33:19,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5906 states, 5904 states have (on average 2.669037940379404) internal successors, (15758), 5905 states have internal predecessors, (15758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:19,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5906 states to 5906 states and 15758 transitions. [2021-05-21 17:33:19,030 INFO L78 Accepts]: Start accepts. Automaton has 5906 states and 15758 transitions. Word has length 114 [2021-05-21 17:33:19,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:19,030 INFO L482 AbstractCegarLoop]: Abstraction has 5906 states and 15758 transitions. [2021-05-21 17:33:19,031 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:19,031 INFO L276 IsEmpty]: Start isEmpty. Operand 5906 states and 15758 transitions. [2021-05-21 17:33:19,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:19,034 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:19,035 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:19,035 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-05-21 17:33:19,035 INFO L430 AbstractCegarLoop]: === Iteration 165 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:19,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:19,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1436466102, now seen corresponding path program 159 times [2021-05-21 17:33:19,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:19,035 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997719739] [2021-05-21 17:33:19,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:19,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:33:19,307 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:19,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997719739] [2021-05-21 17:33:19,307 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997719739] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:19,307 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:19,307 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:19,307 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864924020] [2021-05-21 17:33:19,307 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:19,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:19,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:19,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:19,307 INFO L87 Difference]: Start difference. First operand 5906 states and 15758 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:20,137 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:20,290 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:33:20,461 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:33:20,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:20,588 INFO L93 Difference]: Finished difference Result 15250 states and 39230 transitions. [2021-05-21 17:33:20,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:20,589 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:20,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:20,601 INFO L225 Difference]: With dead ends: 15250 [2021-05-21 17:33:20,601 INFO L226 Difference]: Without dead ends: 15250 [2021-05-21 17:33:20,601 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1160.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:20,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15250 states. [2021-05-21 17:33:20,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15250 to 5890. [2021-05-21 17:33:20,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5890 states, 5888 states have (on average 2.6684782608695654) internal successors, (15712), 5889 states have internal predecessors, (15712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:20,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5890 states to 5890 states and 15712 transitions. [2021-05-21 17:33:20,693 INFO L78 Accepts]: Start accepts. Automaton has 5890 states and 15712 transitions. Word has length 114 [2021-05-21 17:33:20,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:20,693 INFO L482 AbstractCegarLoop]: Abstraction has 5890 states and 15712 transitions. [2021-05-21 17:33:20,693 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:20,694 INFO L276 IsEmpty]: Start isEmpty. Operand 5890 states and 15712 transitions. [2021-05-21 17:33:20,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:20,697 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:20,697 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:20,697 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-05-21 17:33:20,698 INFO L430 AbstractCegarLoop]: === Iteration 166 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:20,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:20,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1701683890, now seen corresponding path program 160 times [2021-05-21 17:33:20,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:20,698 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855032395] [2021-05-21 17:33:20,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:20,999 INFO 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 17:33:20,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:20,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855032395] [2021-05-21 17:33:20,999 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855032395] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:20,999 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:20,999 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:20,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069566067] [2021-05-21 17:33:20,999 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:20,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:20,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:21,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:21,000 INFO L87 Difference]: Start difference. First operand 5890 states and 15712 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:21,785 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:33:21,949 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:33:22,119 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:33:22,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:22,226 INFO L93 Difference]: Finished difference Result 12308 states and 31802 transitions. [2021-05-21 17:33:22,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:22,227 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:22,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:22,236 INFO L225 Difference]: With dead ends: 12308 [2021-05-21 17:33:22,236 INFO L226 Difference]: Without dead ends: 12308 [2021-05-21 17:33:22,236 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1169.7ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:22,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12308 states. [2021-05-21 17:33:22,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12308 to 5826. [2021-05-21 17:33:22,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5824 states have (on average 2.666208791208791) internal successors, (15528), 5825 states have internal predecessors, (15528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:22,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 15528 transitions. [2021-05-21 17:33:22,325 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 15528 transitions. Word has length 114 [2021-05-21 17:33:22,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:22,325 INFO L482 AbstractCegarLoop]: Abstraction has 5826 states and 15528 transitions. [2021-05-21 17:33:22,325 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:22,325 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 15528 transitions. [2021-05-21 17:33:22,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:22,329 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:22,329 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] [2021-05-21 17:33:22,330 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-05-21 17:33:22,330 INFO L430 AbstractCegarLoop]: === Iteration 167 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:22,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:22,330 INFO L82 PathProgramCache]: Analyzing trace with hash -783559540, now seen corresponding path program 161 times [2021-05-21 17:33:22,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:22,330 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553120099] [2021-05-21 17:33:22,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:22,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:33:22,629 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:22,629 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553120099] [2021-05-21 17:33:22,629 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553120099] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:22,629 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:22,629 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:22,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842388992] [2021-05-21 17:33:22,630 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:22,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:22,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:22,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:22,630 INFO L87 Difference]: Start difference. First operand 5826 states and 15528 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:23,465 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:23,635 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:33:23,808 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:33:23,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:23,928 INFO L93 Difference]: Finished difference Result 10980 states and 28419 transitions. [2021-05-21 17:33:23,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:23,928 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:23,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:23,936 INFO L225 Difference]: With dead ends: 10980 [2021-05-21 17:33:23,936 INFO L226 Difference]: Without dead ends: 10980 [2021-05-21 17:33:23,937 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1205.4ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:23,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10980 states. [2021-05-21 17:33:24,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10980 to 5888. [2021-05-21 17:33:24,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5888 states, 5886 states have (on average 2.6685355079850495) internal successors, (15707), 5887 states have internal predecessors, (15707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:24,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5888 states to 5888 states and 15707 transitions. [2021-05-21 17:33:24,016 INFO L78 Accepts]: Start accepts. Automaton has 5888 states and 15707 transitions. Word has length 114 [2021-05-21 17:33:24,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:24,016 INFO L482 AbstractCegarLoop]: Abstraction has 5888 states and 15707 transitions. [2021-05-21 17:33:24,016 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:24,016 INFO L276 IsEmpty]: Start isEmpty. Operand 5888 states and 15707 transitions. [2021-05-21 17:33:24,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:24,020 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:24,020 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:24,020 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-05-21 17:33:24,020 INFO L430 AbstractCegarLoop]: === Iteration 168 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:24,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:24,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1032106520, now seen corresponding path program 162 times [2021-05-21 17:33:24,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:24,021 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135643090] [2021-05-21 17:33:24,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:24,307 INFO 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 17:33:24,307 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:24,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135643090] [2021-05-21 17:33:24,307 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135643090] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:24,307 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:24,307 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:24,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681493521] [2021-05-21 17:33:24,308 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:24,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:24,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:24,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:24,308 INFO L87 Difference]: Start difference. First operand 5888 states and 15707 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:25,111 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:25,268 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:33:25,440 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:33:25,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:25,543 INFO L93 Difference]: Finished difference Result 10816 states and 28017 transitions. [2021-05-21 17:33:25,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:25,543 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:25,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:25,551 INFO L225 Difference]: With dead ends: 10816 [2021-05-21 17:33:25,551 INFO L226 Difference]: Without dead ends: 10816 [2021-05-21 17:33:25,552 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1171.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:25,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10816 states. [2021-05-21 17:33:25,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10816 to 5872. [2021-05-21 17:33:25,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5872 states, 5870 states have (on average 2.6679727427597957) internal successors, (15661), 5871 states have internal predecessors, (15661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:25,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5872 states to 5872 states and 15661 transitions. [2021-05-21 17:33:25,628 INFO L78 Accepts]: Start accepts. Automaton has 5872 states and 15661 transitions. Word has length 114 [2021-05-21 17:33:25,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:25,628 INFO L482 AbstractCegarLoop]: Abstraction has 5872 states and 15661 transitions. [2021-05-21 17:33:25,628 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:25,628 INFO L276 IsEmpty]: Start isEmpty. Operand 5872 states and 15661 transitions. [2021-05-21 17:33:25,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:25,632 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:25,632 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:25,632 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-05-21 17:33:25,632 INFO L430 AbstractCegarLoop]: === Iteration 169 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:25,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:25,633 INFO L82 PathProgramCache]: Analyzing trace with hash 2106043472, now seen corresponding path program 163 times [2021-05-21 17:33:25,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:25,633 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905730720] [2021-05-21 17:33:25,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:25,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:33:25,948 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:25,948 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905730720] [2021-05-21 17:33:25,948 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905730720] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:25,948 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:25,948 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:25,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784638010] [2021-05-21 17:33:25,949 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:25,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:25,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:25,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:25,949 INFO L87 Difference]: Start difference. First operand 5872 states and 15661 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:26,732 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:33:26,896 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:33:27,070 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:33:27,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:27,176 INFO L93 Difference]: Finished difference Result 11104 states and 28845 transitions. [2021-05-21 17:33:27,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:27,177 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:27,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:27,186 INFO L225 Difference]: With dead ends: 11104 [2021-05-21 17:33:27,187 INFO L226 Difference]: Without dead ends: 11104 [2021-05-21 17:33:27,187 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1185.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:27,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11104 states. [2021-05-21 17:33:27,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11104 to 5840. [2021-05-21 17:33:27,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5840 states, 5838 states have (on average 2.6668379582048645) internal successors, (15569), 5839 states have internal predecessors, (15569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:27,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5840 states to 5840 states and 15569 transitions. [2021-05-21 17:33:27,269 INFO L78 Accepts]: Start accepts. Automaton has 5840 states and 15569 transitions. Word has length 114 [2021-05-21 17:33:27,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:27,269 INFO L482 AbstractCegarLoop]: Abstraction has 5840 states and 15569 transitions. [2021-05-21 17:33:27,269 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:27,269 INFO L276 IsEmpty]: Start isEmpty. Operand 5840 states and 15569 transitions. [2021-05-21 17:33:27,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:27,273 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:27,273 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] [2021-05-21 17:33:27,273 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-05-21 17:33:27,273 INFO L430 AbstractCegarLoop]: === Iteration 170 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:27,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:27,273 INFO L82 PathProgramCache]: Analyzing trace with hash -480740686, now seen corresponding path program 164 times [2021-05-21 17:33:27,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:27,273 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540285502] [2021-05-21 17:33:27,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:27,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:33:27,569 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:27,569 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540285502] [2021-05-21 17:33:27,569 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540285502] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:27,569 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:27,569 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:27,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262674898] [2021-05-21 17:33:27,569 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:27,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:27,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:27,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:27,570 INFO L87 Difference]: Start difference. First operand 5840 states and 15569 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:28,364 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:33:28,548 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:33:28,724 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:33:28,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:28,823 INFO L93 Difference]: Finished difference Result 7746 states and 20253 transitions. [2021-05-21 17:33:28,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:28,824 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:28,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:28,829 INFO L225 Difference]: With dead ends: 7746 [2021-05-21 17:33:28,829 INFO L226 Difference]: Without dead ends: 7746 [2021-05-21 17:33:28,830 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1179.5ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:28,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7746 states. [2021-05-21 17:33:28,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7746 to 5924. [2021-05-21 17:33:28,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5924 states, 5922 states have (on average 2.670550489699426) internal successors, (15815), 5923 states have internal predecessors, (15815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:28,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5924 states to 5924 states and 15815 transitions. [2021-05-21 17:33:28,895 INFO L78 Accepts]: Start accepts. Automaton has 5924 states and 15815 transitions. Word has length 114 [2021-05-21 17:33:28,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:28,895 INFO L482 AbstractCegarLoop]: Abstraction has 5924 states and 15815 transitions. [2021-05-21 17:33:28,895 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:28,895 INFO L276 IsEmpty]: Start isEmpty. Operand 5924 states and 15815 transitions. [2021-05-21 17:33:28,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:28,899 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:28,899 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:28,899 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-05-21 17:33:28,899 INFO L430 AbstractCegarLoop]: === Iteration 171 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:28,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:28,900 INFO L82 PathProgramCache]: Analyzing trace with hash -353757640, now seen corresponding path program 165 times [2021-05-21 17:33:28,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:28,900 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940628375] [2021-05-21 17:33:28,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:29,177 INFO 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 17:33:29,177 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:29,177 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940628375] [2021-05-21 17:33:29,177 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940628375] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:29,177 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:29,177 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-05-21 17:33:29,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131722518] [2021-05-21 17:33:29,178 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-21 17:33:29,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:29,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-21 17:33:29,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-05-21 17:33:29,178 INFO L87 Difference]: Start difference. First operand 5924 states and 15815 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:30,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:30,092 INFO L93 Difference]: Finished difference Result 7633 states and 19368 transitions. [2021-05-21 17:33:30,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-21 17:33:30,092 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:30,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:30,099 INFO L225 Difference]: With dead ends: 7633 [2021-05-21 17:33:30,099 INFO L226 Difference]: Without dead ends: 7633 [2021-05-21 17:33:30,099 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 810.9ms TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2021-05-21 17:33:30,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7633 states. [2021-05-21 17:33:30,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7633 to 5858. [2021-05-21 17:33:30,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5858 states, 5856 states have (on average 2.6741803278688523) internal successors, (15660), 5857 states have internal predecessors, (15660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:30,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 15660 transitions. [2021-05-21 17:33:30,161 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 15660 transitions. Word has length 114 [2021-05-21 17:33:30,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:30,161 INFO L482 AbstractCegarLoop]: Abstraction has 5858 states and 15660 transitions. [2021-05-21 17:33:30,161 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:30,161 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 15660 transitions. [2021-05-21 17:33:30,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:30,165 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:30,165 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:30,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-05-21 17:33:30,165 INFO L430 AbstractCegarLoop]: === Iteration 172 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:30,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:30,165 INFO L82 PathProgramCache]: Analyzing trace with hash 798212522, now seen corresponding path program 166 times [2021-05-21 17:33:30,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:30,165 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847373127] [2021-05-21 17:33:30,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:30,450 INFO 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 17:33:30,450 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:30,450 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847373127] [2021-05-21 17:33:30,450 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847373127] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:30,450 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:30,450 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:30,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868650975] [2021-05-21 17:33:30,450 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:30,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:30,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:30,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:30,451 INFO L87 Difference]: Start difference. First operand 5858 states and 15660 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:31,245 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:33:31,405 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:33:31,575 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:33:31,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:31,712 INFO L93 Difference]: Finished difference Result 20547 states and 53868 transitions. [2021-05-21 17:33:31,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:31,713 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:31,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:31,729 INFO L225 Difference]: With dead ends: 20547 [2021-05-21 17:33:31,729 INFO L226 Difference]: Without dead ends: 20547 [2021-05-21 17:33:31,729 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1155.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:31,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20547 states. [2021-05-21 17:33:31,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20547 to 5970. [2021-05-21 17:33:31,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5970 states, 5968 states have (on average 2.6779490616621984) internal successors, (15982), 5969 states have internal predecessors, (15982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:31,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5970 states to 5970 states and 15982 transitions. [2021-05-21 17:33:31,846 INFO L78 Accepts]: Start accepts. Automaton has 5970 states and 15982 transitions. Word has length 114 [2021-05-21 17:33:31,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:31,846 INFO L482 AbstractCegarLoop]: Abstraction has 5970 states and 15982 transitions. [2021-05-21 17:33:31,846 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:31,846 INFO L276 IsEmpty]: Start isEmpty. Operand 5970 states and 15982 transitions. [2021-05-21 17:33:31,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:31,850 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:31,850 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:31,850 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-05-21 17:33:31,851 INFO L430 AbstractCegarLoop]: === Iteration 173 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:31,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:31,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1583518038, now seen corresponding path program 167 times [2021-05-21 17:33:31,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:31,851 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248433877] [2021-05-21 17:33:31,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:32,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:33:32,128 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:32,128 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248433877] [2021-05-21 17:33:32,128 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248433877] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:32,128 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:32,128 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:32,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732885015] [2021-05-21 17:33:32,129 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:32,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:32,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:32,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:32,129 INFO L87 Difference]: Start difference. First operand 5970 states and 15982 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:32,931 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:33,080 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:33:33,254 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:33:33,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:33,422 INFO L93 Difference]: Finished difference Result 23171 states and 60591 transitions. [2021-05-21 17:33:33,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:33,423 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:33,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:33,438 INFO L225 Difference]: With dead ends: 23171 [2021-05-21 17:33:33,439 INFO L226 Difference]: Without dead ends: 23171 [2021-05-21 17:33:33,439 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1152.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:33,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23171 states. [2021-05-21 17:33:33,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23171 to 5986. [2021-05-21 17:33:33,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5986 states, 5984 states have (on average 2.678475935828877) internal successors, (16028), 5985 states have internal predecessors, (16028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:33,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5986 states to 5986 states and 16028 transitions. [2021-05-21 17:33:33,562 INFO L78 Accepts]: Start accepts. Automaton has 5986 states and 16028 transitions. Word has length 114 [2021-05-21 17:33:33,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:33,562 INFO L482 AbstractCegarLoop]: Abstraction has 5986 states and 16028 transitions. [2021-05-21 17:33:33,562 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:33,562 INFO L276 IsEmpty]: Start isEmpty. Operand 5986 states and 16028 transitions. [2021-05-21 17:33:33,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:33,567 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:33,567 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:33,567 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-05-21 17:33:33,567 INFO L430 AbstractCegarLoop]: === Iteration 174 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:33,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:33,567 INFO L82 PathProgramCache]: Analyzing trace with hash 551956584, now seen corresponding path program 168 times [2021-05-21 17:33:33,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:33,567 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566739312] [2021-05-21 17:33:33,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:33,863 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 17:33:33,863 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:33,863 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566739312] [2021-05-21 17:33:33,863 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566739312] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:33,863 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:33,864 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:33,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044573753] [2021-05-21 17:33:33,864 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:33,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:33,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:33,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:33,864 INFO L87 Difference]: Start difference. First operand 5986 states and 16028 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:34,701 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:34,864 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:33:35,036 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:33:35,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:35,184 INFO L93 Difference]: Finished difference Result 21451 states and 55879 transitions. [2021-05-21 17:33:35,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:35,185 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:35,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:35,202 INFO L225 Difference]: With dead ends: 21451 [2021-05-21 17:33:35,202 INFO L226 Difference]: Without dead ends: 21451 [2021-05-21 17:33:35,203 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1181.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:35,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21451 states. [2021-05-21 17:33:35,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21451 to 5958. [2021-05-21 17:33:35,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5958 states, 5956 states have (on average 2.674278038952317) internal successors, (15928), 5957 states have internal predecessors, (15928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:35,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5958 states to 5958 states and 15928 transitions. [2021-05-21 17:33:35,326 INFO L78 Accepts]: Start accepts. Automaton has 5958 states and 15928 transitions. Word has length 114 [2021-05-21 17:33:35,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:35,326 INFO L482 AbstractCegarLoop]: Abstraction has 5958 states and 15928 transitions. [2021-05-21 17:33:35,326 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:35,326 INFO L276 IsEmpty]: Start isEmpty. Operand 5958 states and 15928 transitions. [2021-05-21 17:33:35,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:35,330 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:35,330 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] [2021-05-21 17:33:35,330 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-05-21 17:33:35,330 INFO L430 AbstractCegarLoop]: === Iteration 175 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:35,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:35,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1261771414, now seen corresponding path program 169 times [2021-05-21 17:33:35,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:35,330 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953258436] [2021-05-21 17:33:35,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:35,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:35,632 INFO 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 17:33:35,633 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:35,633 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953258436] [2021-05-21 17:33:35,633 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953258436] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:35,633 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:35,633 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:35,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959538667] [2021-05-21 17:33:35,633 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:35,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:35,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:35,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:35,633 INFO L87 Difference]: Start difference. First operand 5958 states and 15928 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:36,455 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:36,607 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:33:36,781 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:33:36,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:36,926 INFO L93 Difference]: Finished difference Result 20651 states and 54026 transitions. [2021-05-21 17:33:36,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:36,927 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:36,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:36,944 INFO L225 Difference]: With dead ends: 20651 [2021-05-21 17:33:36,944 INFO L226 Difference]: Without dead ends: 20651 [2021-05-21 17:33:36,944 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1178.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:36,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20651 states. [2021-05-21 17:33:37,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20651 to 5990. [2021-05-21 17:33:37,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5990 states, 5988 states have (on average 2.6753507014028055) internal successors, (16020), 5989 states have internal predecessors, (16020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:37,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5990 states to 5990 states and 16020 transitions. [2021-05-21 17:33:37,064 INFO L78 Accepts]: Start accepts. Automaton has 5990 states and 16020 transitions. Word has length 114 [2021-05-21 17:33:37,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:37,064 INFO L482 AbstractCegarLoop]: Abstraction has 5990 states and 16020 transitions. [2021-05-21 17:33:37,064 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:37,064 INFO L276 IsEmpty]: Start isEmpty. Operand 5990 states and 16020 transitions. [2021-05-21 17:33:37,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:37,068 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:37,068 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:37,068 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-05-21 17:33:37,068 INFO L430 AbstractCegarLoop]: === Iteration 176 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:37,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:37,069 INFO L82 PathProgramCache]: Analyzing trace with hash 873703208, now seen corresponding path program 170 times [2021-05-21 17:33:37,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:37,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47237930] [2021-05-21 17:33:37,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:37,342 INFO 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 17:33:37,342 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:37,342 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47237930] [2021-05-21 17:33:37,342 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47237930] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:37,342 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:37,342 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:37,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888580831] [2021-05-21 17:33:37,343 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:37,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:37,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:37,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:37,343 INFO L87 Difference]: Start difference. First operand 5990 states and 16020 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:38,165 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:38,334 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:33:38,498 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:33:38,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:38,632 INFO L93 Difference]: Finished difference Result 21497 states and 55886 transitions. [2021-05-21 17:33:38,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:38,633 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:38,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:38,650 INFO L225 Difference]: With dead ends: 21497 [2021-05-21 17:33:38,650 INFO L226 Difference]: Without dead ends: 21497 [2021-05-21 17:33:38,651 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1178.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:38,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21497 states. [2021-05-21 17:33:38,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21497 to 5974. [2021-05-21 17:33:38,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.674815807099799) internal successors, (15974), 5973 states have internal predecessors, (15974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:38,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15974 transitions. [2021-05-21 17:33:38,772 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15974 transitions. Word has length 114 [2021-05-21 17:33:38,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:38,772 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15974 transitions. [2021-05-21 17:33:38,772 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:38,773 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15974 transitions. [2021-05-21 17:33:38,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:38,777 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:38,777 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:38,777 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-05-21 17:33:38,777 INFO L430 AbstractCegarLoop]: === Iteration 177 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:38,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:38,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1671566668, now seen corresponding path program 171 times [2021-05-21 17:33:38,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:38,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137069134] [2021-05-21 17:33:38,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:39,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:33:39,048 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:39,048 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137069134] [2021-05-21 17:33:39,048 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137069134] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:39,048 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:39,048 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:39,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610077598] [2021-05-21 17:33:39,048 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:39,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:39,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:39,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:39,049 INFO L87 Difference]: Start difference. First operand 5974 states and 15974 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:39,840 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:39,996 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:33:40,161 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:33:40,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:40,294 INFO L93 Difference]: Finished difference Result 20797 states and 54257 transitions. [2021-05-21 17:33:40,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:40,294 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:40,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:40,311 INFO L225 Difference]: With dead ends: 20797 [2021-05-21 17:33:40,311 INFO L226 Difference]: Without dead ends: 20797 [2021-05-21 17:33:40,311 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1145.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:40,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20797 states. [2021-05-21 17:33:40,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20797 to 5990. [2021-05-21 17:33:40,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5990 states, 5988 states have (on average 2.6753507014028055) internal successors, (16020), 5989 states have internal predecessors, (16020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:40,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5990 states to 5990 states and 16020 transitions. [2021-05-21 17:33:40,465 INFO L78 Accepts]: Start accepts. Automaton has 5990 states and 16020 transitions. Word has length 114 [2021-05-21 17:33:40,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:40,465 INFO L482 AbstractCegarLoop]: Abstraction has 5990 states and 16020 transitions. [2021-05-21 17:33:40,465 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:40,465 INFO L276 IsEmpty]: Start isEmpty. Operand 5990 states and 16020 transitions. [2021-05-21 17:33:40,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:40,469 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:40,469 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:40,469 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-05-21 17:33:40,469 INFO L430 AbstractCegarLoop]: === Iteration 178 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:40,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:40,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1423019688, now seen corresponding path program 172 times [2021-05-21 17:33:40,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:40,469 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111448559] [2021-05-21 17:33:40,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:40,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:33:40,734 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:40,734 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111448559] [2021-05-21 17:33:40,734 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111448559] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:40,734 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:40,734 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:40,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654165418] [2021-05-21 17:33:40,734 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:40,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:40,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:40,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:40,735 INFO L87 Difference]: Start difference. First operand 5990 states and 16020 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:41,549 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:41,698 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:33:41,866 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:33:41,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:41,999 INFO L93 Difference]: Finished difference Result 18055 states and 47345 transitions. [2021-05-21 17:33:42,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:42,000 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:42,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:42,014 INFO L225 Difference]: With dead ends: 18055 [2021-05-21 17:33:42,014 INFO L226 Difference]: Without dead ends: 18055 [2021-05-21 17:33:42,015 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1134.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:42,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18055 states. [2021-05-21 17:33:42,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18055 to 5946. [2021-05-21 17:33:42,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5946 states, 5944 states have (on average 2.6726110363391657) internal successors, (15886), 5945 states have internal predecessors, (15886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:42,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5946 states to 5946 states and 15886 transitions. [2021-05-21 17:33:42,119 INFO L78 Accepts]: Start accepts. Automaton has 5946 states and 15886 transitions. Word has length 114 [2021-05-21 17:33:42,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:42,120 INFO L482 AbstractCegarLoop]: Abstraction has 5946 states and 15886 transitions. [2021-05-21 17:33:42,120 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:42,120 INFO L276 IsEmpty]: Start isEmpty. Operand 5946 states and 15886 transitions. [2021-05-21 17:33:42,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:42,123 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:42,124 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:42,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-05-21 17:33:42,124 INFO L430 AbstractCegarLoop]: === Iteration 179 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:42,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:42,124 INFO L82 PathProgramCache]: Analyzing trace with hash 703534284, now seen corresponding path program 173 times [2021-05-21 17:33:42,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:42,124 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494245895] [2021-05-21 17:33:42,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:42,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:42,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:33:42,418 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:42,418 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494245895] [2021-05-21 17:33:42,419 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494245895] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:42,419 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:42,419 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:42,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771448608] [2021-05-21 17:33:42,419 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:42,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:42,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:42,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:42,419 INFO L87 Difference]: Start difference. First operand 5946 states and 15886 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:43,258 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:33:43,428 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:33:43,601 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:33:43,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:43,749 INFO L93 Difference]: Finished difference Result 19247 states and 50737 transitions. [2021-05-21 17:33:43,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:43,750 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:43,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:43,766 INFO L225 Difference]: With dead ends: 19247 [2021-05-21 17:33:43,766 INFO L226 Difference]: Without dead ends: 19247 [2021-05-21 17:33:43,766 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1170.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:43,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19247 states. [2021-05-21 17:33:43,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19247 to 5994. [2021-05-21 17:33:43,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5994 states, 5992 states have (on average 2.6742323097463285) internal successors, (16024), 5993 states have internal predecessors, (16024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:43,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5994 states to 5994 states and 16024 transitions. [2021-05-21 17:33:43,883 INFO L78 Accepts]: Start accepts. Automaton has 5994 states and 16024 transitions. Word has length 114 [2021-05-21 17:33:43,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:43,883 INFO L482 AbstractCegarLoop]: Abstraction has 5994 states and 16024 transitions. [2021-05-21 17:33:43,883 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:43,883 INFO L276 IsEmpty]: Start isEmpty. Operand 5994 states and 16024 transitions. [2021-05-21 17:33:43,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:43,887 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:43,887 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:43,887 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-05-21 17:33:43,887 INFO L430 AbstractCegarLoop]: === Iteration 180 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:43,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:43,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1678196276, now seen corresponding path program 174 times [2021-05-21 17:33:43,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:43,888 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334868444] [2021-05-21 17:33:43,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:43,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:44,195 INFO 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 17:33:44,195 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:44,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334868444] [2021-05-21 17:33:44,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334868444] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:44,196 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:44,196 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:44,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117164719] [2021-05-21 17:33:44,196 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:44,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:44,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:44,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:44,196 INFO L87 Difference]: Start difference. First operand 5994 states and 16024 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:45,034 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:45,188 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:33:45,362 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:33:45,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:45,524 INFO L93 Difference]: Finished difference Result 19323 states and 50873 transitions. [2021-05-21 17:33:45,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:45,525 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:45,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:45,541 INFO L225 Difference]: With dead ends: 19323 [2021-05-21 17:33:45,541 INFO L226 Difference]: Without dead ends: 19323 [2021-05-21 17:33:45,541 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1180.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:45,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19323 states. [2021-05-21 17:33:45,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19323 to 6010. [2021-05-21 17:33:45,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6010 states, 6008 states have (on average 2.6747669773635154) internal successors, (16070), 6009 states have internal predecessors, (16070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:45,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6010 states to 6010 states and 16070 transitions. [2021-05-21 17:33:45,660 INFO L78 Accepts]: Start accepts. Automaton has 6010 states and 16070 transitions. Word has length 114 [2021-05-21 17:33:45,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:45,660 INFO L482 AbstractCegarLoop]: Abstraction has 6010 states and 16070 transitions. [2021-05-21 17:33:45,660 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:45,660 INFO L276 IsEmpty]: Start isEmpty. Operand 6010 states and 16070 transitions. [2021-05-21 17:33:45,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:45,664 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:45,664 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:45,664 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-05-21 17:33:45,664 INFO L430 AbstractCegarLoop]: === Iteration 181 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:45,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:45,664 INFO L82 PathProgramCache]: Analyzing trace with hash 457278346, now seen corresponding path program 175 times [2021-05-21 17:33:45,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:45,664 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802727788] [2021-05-21 17:33:45,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:45,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:33:45,963 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:45,963 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802727788] [2021-05-21 17:33:45,963 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802727788] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:45,963 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:45,963 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:45,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308979018] [2021-05-21 17:33:45,964 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:45,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:45,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:45,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:45,964 INFO L87 Difference]: Start difference. First operand 6010 states and 16070 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:46,783 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:46,947 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:33:47,115 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:33:47,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:47,252 INFO L93 Difference]: Finished difference Result 18707 states and 48899 transitions. [2021-05-21 17:33:47,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:47,252 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:47,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:47,268 INFO L225 Difference]: With dead ends: 18707 [2021-05-21 17:33:47,268 INFO L226 Difference]: Without dead ends: 18707 [2021-05-21 17:33:47,269 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1186.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:47,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18707 states. [2021-05-21 17:33:47,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18707 to 5962. [2021-05-21 17:33:47,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5962 states, 5960 states have (on average 2.6731543624161076) internal successors, (15932), 5961 states have internal predecessors, (15932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:47,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5962 states to 5962 states and 15932 transitions. [2021-05-21 17:33:47,381 INFO L78 Accepts]: Start accepts. Automaton has 5962 states and 15932 transitions. Word has length 114 [2021-05-21 17:33:47,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:47,381 INFO L482 AbstractCegarLoop]: Abstraction has 5962 states and 15932 transitions. [2021-05-21 17:33:47,381 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:47,381 INFO L276 IsEmpty]: Start isEmpty. Operand 5962 states and 15932 transitions. [2021-05-21 17:33:47,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:47,385 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:47,385 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:47,385 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-05-21 17:33:47,385 INFO L430 AbstractCegarLoop]: === Iteration 182 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:47,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:47,385 INFO L82 PathProgramCache]: Analyzing trace with hash 324716970, now seen corresponding path program 176 times [2021-05-21 17:33:47,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:47,385 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861934158] [2021-05-21 17:33:47,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:47,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:47,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:33:47,712 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:47,712 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861934158] [2021-05-21 17:33:47,712 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861934158] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:47,712 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:47,712 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:47,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152476355] [2021-05-21 17:33:47,713 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:47,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:47,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:47,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:47,713 INFO L87 Difference]: Start difference. First operand 5962 states and 15932 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:48,517 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:33:48,688 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:33:48,862 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:33:48,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:48,998 INFO L93 Difference]: Finished difference Result 15467 states and 40652 transitions. [2021-05-21 17:33:48,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:48,999 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:48,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:49,012 INFO L225 Difference]: With dead ends: 15467 [2021-05-21 17:33:49,013 INFO L226 Difference]: Without dead ends: 15467 [2021-05-21 17:33:49,013 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1200.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:49,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15467 states. [2021-05-21 17:33:49,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15467 to 5934. [2021-05-21 17:33:49,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5934 states, 5932 states have (on average 2.671948752528658) internal successors, (15850), 5933 states have internal predecessors, (15850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:49,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5934 states to 5934 states and 15850 transitions. [2021-05-21 17:33:49,112 INFO L78 Accepts]: Start accepts. Automaton has 5934 states and 15850 transitions. Word has length 114 [2021-05-21 17:33:49,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:49,112 INFO L482 AbstractCegarLoop]: Abstraction has 5934 states and 15850 transitions. [2021-05-21 17:33:49,112 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:49,112 INFO L276 IsEmpty]: Start isEmpty. Operand 5934 states and 15850 transitions. [2021-05-21 17:33:49,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:49,116 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:49,116 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:49,116 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-05-21 17:33:49,116 INFO L430 AbstractCegarLoop]: === Iteration 183 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:49,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:49,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1636233162, now seen corresponding path program 177 times [2021-05-21 17:33:49,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:49,118 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480227281] [2021-05-21 17:33:49,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:49,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:33:49,401 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:49,401 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480227281] [2021-05-21 17:33:49,401 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480227281] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:49,401 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:49,401 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:49,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605940268] [2021-05-21 17:33:49,401 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:49,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:49,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:49,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:49,401 INFO L87 Difference]: Start difference. First operand 5934 states and 15850 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:50,218 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:33:50,397 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:33:50,571 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:33:50,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:50,708 INFO L93 Difference]: Finished difference Result 15229 states and 39989 transitions. [2021-05-21 17:33:50,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:50,708 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:50,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:50,721 INFO L225 Difference]: With dead ends: 15229 [2021-05-21 17:33:50,721 INFO L226 Difference]: Without dead ends: 15229 [2021-05-21 17:33:50,721 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1160.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:50,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15229 states. [2021-05-21 17:33:50,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15229 to 6062. [2021-05-21 17:33:50,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6062 states, 6060 states have (on average 2.6762376237623764) internal successors, (16218), 6061 states have internal predecessors, (16218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:50,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6062 states to 6062 states and 16218 transitions. [2021-05-21 17:33:50,827 INFO L78 Accepts]: Start accepts. Automaton has 6062 states and 16218 transitions. Word has length 114 [2021-05-21 17:33:50,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:50,828 INFO L482 AbstractCegarLoop]: Abstraction has 6062 states and 16218 transitions. [2021-05-21 17:33:50,828 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:50,828 INFO L276 IsEmpty]: Start isEmpty. Operand 6062 states and 16218 transitions. [2021-05-21 17:33:50,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:50,832 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:50,832 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:50,832 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-05-21 17:33:50,833 INFO L430 AbstractCegarLoop]: === Iteration 184 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:50,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:50,833 INFO L82 PathProgramCache]: Analyzing trace with hash -745497398, now seen corresponding path program 178 times [2021-05-21 17:33:50,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:50,833 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289447975] [2021-05-21 17:33:50,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:51,115 INFO 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 17:33:51,115 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:51,115 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289447975] [2021-05-21 17:33:51,115 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289447975] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:51,116 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:51,116 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:51,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706125264] [2021-05-21 17:33:51,116 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:51,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:51,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:51,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:51,117 INFO L87 Difference]: Start difference. First operand 6062 states and 16218 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:51,957 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:52,110 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:33:52,285 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:33:52,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:52,429 INFO L93 Difference]: Finished difference Result 17853 states and 46712 transitions. [2021-05-21 17:33:52,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:52,430 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:52,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:52,445 INFO L225 Difference]: With dead ends: 17853 [2021-05-21 17:33:52,445 INFO L226 Difference]: Without dead ends: 17853 [2021-05-21 17:33:52,446 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1158.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:52,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17853 states. [2021-05-21 17:33:52,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17853 to 6078. [2021-05-21 17:33:52,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6078 states, 6076 states have (on average 2.676761026991442) internal successors, (16264), 6077 states have internal predecessors, (16264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:52,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6078 states to 6078 states and 16264 transitions. [2021-05-21 17:33:52,562 INFO L78 Accepts]: Start accepts. Automaton has 6078 states and 16264 transitions. Word has length 114 [2021-05-21 17:33:52,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:52,562 INFO L482 AbstractCegarLoop]: Abstraction has 6078 states and 16264 transitions. [2021-05-21 17:33:52,562 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:52,562 INFO L276 IsEmpty]: Start isEmpty. Operand 6078 states and 16264 transitions. [2021-05-21 17:33:52,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:52,568 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:52,568 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:52,568 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-05-21 17:33:52,568 INFO L430 AbstractCegarLoop]: === Iteration 185 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:52,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:52,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1389977224, now seen corresponding path program 179 times [2021-05-21 17:33:52,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:52,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104319062] [2021-05-21 17:33:52,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:52,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:52,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:33:52,878 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:52,878 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104319062] [2021-05-21 17:33:52,878 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104319062] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:52,878 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:52,878 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:52,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396442863] [2021-05-21 17:33:52,879 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:52,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:52,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:52,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:52,879 INFO L87 Difference]: Start difference. First operand 6078 states and 16264 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:53,694 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:53,854 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:33:54,022 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:33:54,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:54,149 INFO L93 Difference]: Finished difference Result 16133 states and 42000 transitions. [2021-05-21 17:33:54,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:54,150 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:54,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:54,163 INFO L225 Difference]: With dead ends: 16133 [2021-05-21 17:33:54,163 INFO L226 Difference]: Without dead ends: 16133 [2021-05-21 17:33:54,164 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1165.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:54,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16133 states. [2021-05-21 17:33:54,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16133 to 6030. [2021-05-21 17:33:54,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6030 states, 6028 states have (on average 2.6751824817518246) internal successors, (16126), 6029 states have internal predecessors, (16126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:54,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6030 states to 6030 states and 16126 transitions. [2021-05-21 17:33:54,270 INFO L78 Accepts]: Start accepts. Automaton has 6030 states and 16126 transitions. Word has length 114 [2021-05-21 17:33:54,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:54,270 INFO L482 AbstractCegarLoop]: Abstraction has 6030 states and 16126 transitions. [2021-05-21 17:33:54,270 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:54,270 INFO L276 IsEmpty]: Start isEmpty. Operand 6030 states and 16126 transitions. [2021-05-21 17:33:54,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:54,275 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:54,275 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:54,275 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-05-21 17:33:54,275 INFO L430 AbstractCegarLoop]: === Iteration 186 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:54,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:54,275 INFO L82 PathProgramCache]: Analyzing trace with hash -423750774, now seen corresponding path program 180 times [2021-05-21 17:33:54,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:54,275 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921466667] [2021-05-21 17:33:54,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:54,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:33:54,566 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:54,566 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921466667] [2021-05-21 17:33:54,566 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921466667] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:54,566 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:54,566 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:54,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085794821] [2021-05-21 17:33:54,567 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:54,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:54,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:54,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:54,567 INFO L87 Difference]: Start difference. First operand 6030 states and 16126 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:55,254 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:33:55,390 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:55,540 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:33:55,710 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:33:55,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:55,847 INFO L93 Difference]: Finished difference Result 19209 states and 49929 transitions. [2021-05-21 17:33:55,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:55,848 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:55,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:55,864 INFO L225 Difference]: With dead ends: 19209 [2021-05-21 17:33:55,864 INFO L226 Difference]: Without dead ends: 19209 [2021-05-21 17:33:55,864 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1171.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:55,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19209 states. [2021-05-21 17:33:55,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19209 to 6062. [2021-05-21 17:33:55,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6062 states, 6060 states have (on average 2.6762376237623764) internal successors, (16218), 6061 states have internal predecessors, (16218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:55,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6062 states to 6062 states and 16218 transitions. [2021-05-21 17:33:55,976 INFO L78 Accepts]: Start accepts. Automaton has 6062 states and 16218 transitions. Word has length 114 [2021-05-21 17:33:55,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:55,976 INFO L482 AbstractCegarLoop]: Abstraction has 6062 states and 16218 transitions. [2021-05-21 17:33:55,976 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:55,976 INFO L276 IsEmpty]: Start isEmpty. Operand 6062 states and 16218 transitions. [2021-05-21 17:33:55,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:55,980 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:55,980 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:55,981 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-05-21 17:33:55,981 INFO L430 AbstractCegarLoop]: === Iteration 187 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:55,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:55,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1711723848, now seen corresponding path program 181 times [2021-05-21 17:33:55,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:55,981 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433868961] [2021-05-21 17:33:55,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:55,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:56,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:33:56,252 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:56,253 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433868961] [2021-05-21 17:33:56,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433868961] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:56,253 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:56,253 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:56,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312213664] [2021-05-21 17:33:56,253 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:56,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:56,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:56,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:56,253 INFO L87 Difference]: Start difference. First operand 6062 states and 16218 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:57,078 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:57,244 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:33:57,414 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:33:57,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:57,582 INFO L93 Difference]: Finished difference Result 20055 states and 51789 transitions. [2021-05-21 17:33:57,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:57,582 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:57,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:57,600 INFO L225 Difference]: With dead ends: 20055 [2021-05-21 17:33:57,600 INFO L226 Difference]: Without dead ends: 20055 [2021-05-21 17:33:57,600 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1150.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:57,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20055 states. [2021-05-21 17:33:57,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20055 to 6046. [2021-05-21 17:33:57,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6046 states, 6044 states have (on average 2.6757114493712773) internal successors, (16172), 6045 states have internal predecessors, (16172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:57,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6046 states to 6046 states and 16172 transitions. [2021-05-21 17:33:57,729 INFO L78 Accepts]: Start accepts. Automaton has 6046 states and 16172 transitions. Word has length 114 [2021-05-21 17:33:57,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:57,729 INFO L482 AbstractCegarLoop]: Abstraction has 6046 states and 16172 transitions. [2021-05-21 17:33:57,729 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:57,729 INFO L276 IsEmpty]: Start isEmpty. Operand 6046 states and 16172 transitions. [2021-05-21 17:33:57,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:57,733 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:57,733 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:57,733 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-05-21 17:33:57,733 INFO L430 AbstractCegarLoop]: === Iteration 188 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:57,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:57,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1785379988, now seen corresponding path program 182 times [2021-05-21 17:33:57,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:57,734 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568344871] [2021-05-21 17:33:57,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:58,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:33:58,003 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:58,003 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568344871] [2021-05-21 17:33:58,003 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568344871] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:58,003 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:58,003 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:58,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183118854] [2021-05-21 17:33:58,003 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:58,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:58,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:58,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:58,003 INFO L87 Difference]: Start difference. First operand 6046 states and 16172 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:58,827 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:33:58,987 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:33:59,158 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:33:59,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:33:59,310 INFO L93 Difference]: Finished difference Result 19355 states and 50160 transitions. [2021-05-21 17:33:59,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:33:59,310 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:33:59,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:33:59,326 INFO L225 Difference]: With dead ends: 19355 [2021-05-21 17:33:59,326 INFO L226 Difference]: Without dead ends: 19355 [2021-05-21 17:33:59,326 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1147.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:33:59,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19355 states. [2021-05-21 17:33:59,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19355 to 6062. [2021-05-21 17:33:59,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6062 states, 6060 states have (on average 2.6762376237623764) internal successors, (16218), 6061 states have internal predecessors, (16218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:59,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6062 states to 6062 states and 16218 transitions. [2021-05-21 17:33:59,439 INFO L78 Accepts]: Start accepts. Automaton has 6062 states and 16218 transitions. Word has length 114 [2021-05-21 17:33:59,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:33:59,439 INFO L482 AbstractCegarLoop]: Abstraction has 6062 states and 16218 transitions. [2021-05-21 17:33:59,439 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:33:59,439 INFO L276 IsEmpty]: Start isEmpty. Operand 6062 states and 16218 transitions. [2021-05-21 17:33:59,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:33:59,443 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:33:59,443 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:33:59,443 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-05-21 17:33:59,443 INFO L430 AbstractCegarLoop]: === Iteration 189 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:33:59,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:33:59,443 INFO L82 PathProgramCache]: Analyzing trace with hash -2033926968, now seen corresponding path program 183 times [2021-05-21 17:33:59,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:33:59,443 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093387889] [2021-05-21 17:33:59,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:33:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:33:59,714 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 17:33:59,714 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:33:59,714 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093387889] [2021-05-21 17:33:59,714 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093387889] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:33:59,714 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:33:59,714 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:33:59,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570659226] [2021-05-21 17:33:59,715 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:33:59,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:33:59,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:33:59,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:33:59,715 INFO L87 Difference]: Start difference. First operand 6062 states and 16218 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:00,548 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:00,699 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:00,870 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:00,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:00,994 INFO L93 Difference]: Finished difference Result 16313 states and 42498 transitions. [2021-05-21 17:34:00,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:00,994 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:00,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:01,007 INFO L225 Difference]: With dead ends: 16313 [2021-05-21 17:34:01,007 INFO L226 Difference]: Without dead ends: 16313 [2021-05-21 17:34:01,007 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1140.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:01,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16313 states. [2021-05-21 17:34:01,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16313 to 5998. [2021-05-21 17:34:01,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5998 states, 5996 states have (on average 2.674116077384923) internal successors, (16034), 5997 states have internal predecessors, (16034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:01,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5998 states to 5998 states and 16034 transitions. [2021-05-21 17:34:01,105 INFO L78 Accepts]: Start accepts. Automaton has 5998 states and 16034 transitions. Word has length 114 [2021-05-21 17:34:01,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:01,105 INFO L482 AbstractCegarLoop]: Abstraction has 5998 states and 16034 transitions. [2021-05-21 17:34:01,105 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:01,105 INFO L276 IsEmpty]: Start isEmpty. Operand 5998 states and 16034 transitions. [2021-05-21 17:34:01,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:01,109 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:01,109 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] [2021-05-21 17:34:01,109 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-05-21 17:34:01,110 INFO L430 AbstractCegarLoop]: === Iteration 190 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:01,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:01,110 INFO L82 PathProgramCache]: Analyzing trace with hash -558952948, now seen corresponding path program 184 times [2021-05-21 17:34:01,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:01,110 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396879153] [2021-05-21 17:34:01,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:01,376 INFO 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 17:34:01,376 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:01,376 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396879153] [2021-05-21 17:34:01,376 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396879153] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:01,376 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:01,376 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:01,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092891532] [2021-05-21 17:34:01,376 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:01,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:01,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:01,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:01,377 INFO L87 Difference]: Start difference. First operand 5998 states and 16034 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:02,178 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:02,327 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:02,495 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:02,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:02,629 INFO L93 Difference]: Finished difference Result 14789 states and 38763 transitions. [2021-05-21 17:34:02,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:02,629 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:02,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:02,641 INFO L225 Difference]: With dead ends: 14789 [2021-05-21 17:34:02,641 INFO L226 Difference]: Without dead ends: 14789 [2021-05-21 17:34:02,641 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1135.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:02,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14789 states. [2021-05-21 17:34:02,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14789 to 6062. [2021-05-21 17:34:02,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6062 states, 6060 states have (on average 2.6762376237623764) internal successors, (16218), 6061 states have internal predecessors, (16218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:02,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6062 states to 6062 states and 16218 transitions. [2021-05-21 17:34:02,734 INFO L78 Accepts]: Start accepts. Automaton has 6062 states and 16218 transitions. Word has length 114 [2021-05-21 17:34:02,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:02,734 INFO L482 AbstractCegarLoop]: Abstraction has 6062 states and 16218 transitions. [2021-05-21 17:34:02,734 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:02,734 INFO L276 IsEmpty]: Start isEmpty. Operand 6062 states and 16218 transitions. [2021-05-21 17:34:02,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:02,738 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:02,738 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:02,738 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-05-21 17:34:02,738 INFO L430 AbstractCegarLoop]: === Iteration 191 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:02,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:02,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1576521674, now seen corresponding path program 185 times [2021-05-21 17:34:02,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:02,739 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838743379] [2021-05-21 17:34:02,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:02,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:03,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:34:03,010 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:03,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838743379] [2021-05-21 17:34:03,010 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838743379] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:03,010 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:03,010 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:03,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750074448] [2021-05-21 17:34:03,010 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:03,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:03,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:03,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:03,011 INFO L87 Difference]: Start difference. First operand 6062 states and 16218 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:03,818 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:03,980 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:34:04,146 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:34:04,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:04,269 INFO L93 Difference]: Finished difference Result 15635 states and 40623 transitions. [2021-05-21 17:34:04,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:04,269 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:04,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:04,282 INFO L225 Difference]: With dead ends: 15635 [2021-05-21 17:34:04,282 INFO L226 Difference]: Without dead ends: 15635 [2021-05-21 17:34:04,283 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1158.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:04,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15635 states. [2021-05-21 17:34:04,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15635 to 6046. [2021-05-21 17:34:04,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6046 states, 6044 states have (on average 2.6757114493712773) internal successors, (16172), 6045 states have internal predecessors, (16172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:04,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6046 states to 6046 states and 16172 transitions. [2021-05-21 17:34:04,380 INFO L78 Accepts]: Start accepts. Automaton has 6046 states and 16172 transitions. Word has length 114 [2021-05-21 17:34:04,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:04,380 INFO L482 AbstractCegarLoop]: Abstraction has 6046 states and 16172 transitions. [2021-05-21 17:34:04,380 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:04,380 INFO L276 IsEmpty]: Start isEmpty. Operand 6046 states and 16172 transitions. [2021-05-21 17:34:04,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:04,384 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:04,384 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:04,385 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-05-21 17:34:04,385 INFO L430 AbstractCegarLoop]: === Iteration 192 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:04,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:04,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1920582162, now seen corresponding path program 186 times [2021-05-21 17:34:04,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:04,385 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039960978] [2021-05-21 17:34:04,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:04,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:04,657 INFO 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 17:34:04,658 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:04,658 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039960978] [2021-05-21 17:34:04,658 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039960978] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:04,658 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:04,658 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:04,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209662520] [2021-05-21 17:34:04,658 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:04,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:04,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:04,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:04,659 INFO L87 Difference]: Start difference. First operand 6046 states and 16172 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:05,498 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:05,660 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:34:05,830 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:34:05,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:05,981 INFO L93 Difference]: Finished difference Result 18841 states and 48737 transitions. [2021-05-21 17:34:05,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:05,982 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:05,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:05,999 INFO L225 Difference]: With dead ends: 18841 [2021-05-21 17:34:05,999 INFO L226 Difference]: Without dead ends: 18841 [2021-05-21 17:34:05,999 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1169.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:06,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18841 states. [2021-05-21 17:34:06,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18841 to 6062. [2021-05-21 17:34:06,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6062 states, 6060 states have (on average 2.6762376237623764) internal successors, (16218), 6061 states have internal predecessors, (16218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:06,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6062 states to 6062 states and 16218 transitions. [2021-05-21 17:34:06,117 INFO L78 Accepts]: Start accepts. Automaton has 6062 states and 16218 transitions. Word has length 114 [2021-05-21 17:34:06,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:06,118 INFO L482 AbstractCegarLoop]: Abstraction has 6062 states and 16218 transitions. [2021-05-21 17:34:06,118 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:06,118 INFO L276 IsEmpty]: Start isEmpty. Operand 6062 states and 16218 transitions. [2021-05-21 17:34:06,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:06,122 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:06,122 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:06,122 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-05-21 17:34:06,122 INFO L430 AbstractCegarLoop]: === Iteration 193 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:06,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:06,123 INFO L82 PathProgramCache]: Analyzing trace with hash 2125838154, now seen corresponding path program 187 times [2021-05-21 17:34:06,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:06,123 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083319428] [2021-05-21 17:34:06,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:06,390 INFO 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 17:34:06,391 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:06,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083319428] [2021-05-21 17:34:06,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083319428] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:06,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:06,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:06,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950033188] [2021-05-21 17:34:06,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:06,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:06,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:06,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:06,391 INFO L87 Difference]: Start difference. First operand 6062 states and 16218 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:07,227 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:07,379 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:07,568 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:07,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:07,692 INFO L93 Difference]: Finished difference Result 15799 states and 41075 transitions. [2021-05-21 17:34:07,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:07,692 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:07,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:07,705 INFO L225 Difference]: With dead ends: 15799 [2021-05-21 17:34:07,705 INFO L226 Difference]: Without dead ends: 15799 [2021-05-21 17:34:07,705 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1156.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:07,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15799 states. [2021-05-21 17:34:07,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15799 to 6030. [2021-05-21 17:34:07,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6030 states, 6028 states have (on average 2.6751824817518246) internal successors, (16126), 6029 states have internal predecessors, (16126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:07,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6030 states to 6030 states and 16126 transitions. [2021-05-21 17:34:07,801 INFO L78 Accepts]: Start accepts. Automaton has 6030 states and 16126 transitions. Word has length 114 [2021-05-21 17:34:07,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:07,801 INFO L482 AbstractCegarLoop]: Abstraction has 6030 states and 16126 transitions. [2021-05-21 17:34:07,801 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:07,801 INFO L276 IsEmpty]: Start isEmpty. Operand 6030 states and 16126 transitions. [2021-05-21 17:34:07,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:07,805 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:07,805 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:07,805 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-05-21 17:34:07,805 INFO L430 AbstractCegarLoop]: === Iteration 194 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:07,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:07,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1105567848, now seen corresponding path program 188 times [2021-05-21 17:34:07,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:07,805 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528766382] [2021-05-21 17:34:07,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:07,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:08,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:34:08,093 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:08,093 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528766382] [2021-05-21 17:34:08,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528766382] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:08,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:08,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:08,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955683893] [2021-05-21 17:34:08,094 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:08,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:08,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:08,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:08,094 INFO L87 Difference]: Start difference. First operand 6030 states and 16126 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:08,898 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:09,058 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:34:09,226 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:34:09,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:09,347 INFO L93 Difference]: Finished difference Result 14919 states and 38948 transitions. [2021-05-21 17:34:09,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:09,347 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:09,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:09,359 INFO L225 Difference]: With dead ends: 14919 [2021-05-21 17:34:09,359 INFO L226 Difference]: Without dead ends: 14919 [2021-05-21 17:34:09,359 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1170.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:09,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14919 states. [2021-05-21 17:34:09,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14919 to 6078. [2021-05-21 17:34:09,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6078 states, 6076 states have (on average 2.676761026991442) internal successors, (16264), 6077 states have internal predecessors, (16264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:09,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6078 states to 6078 states and 16264 transitions. [2021-05-21 17:34:09,459 INFO L78 Accepts]: Start accepts. Automaton has 6078 states and 16264 transitions. Word has length 114 [2021-05-21 17:34:09,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:09,459 INFO L482 AbstractCegarLoop]: Abstraction has 6078 states and 16264 transitions. [2021-05-21 17:34:09,459 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:09,459 INFO L276 IsEmpty]: Start isEmpty. Operand 6078 states and 16264 transitions. [2021-05-21 17:34:09,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:09,463 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:09,464 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:09,464 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-05-21 17:34:09,464 INFO L430 AbstractCegarLoop]: === Iteration 195 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:09,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:09,464 INFO L82 PathProgramCache]: Analyzing trace with hash 857020868, now seen corresponding path program 189 times [2021-05-21 17:34:09,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:09,464 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815725608] [2021-05-21 17:34:09,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:09,768 INFO 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 17:34:09,768 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:09,768 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815725608] [2021-05-21 17:34:09,768 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815725608] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:09,769 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:09,769 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:09,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288542223] [2021-05-21 17:34:09,769 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:09,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:09,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:09,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:09,769 INFO L87 Difference]: Start difference. First operand 6078 states and 16264 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:10,575 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:10,726 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:10,895 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:11,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:11,007 INFO L93 Difference]: Finished difference Result 14755 states and 38546 transitions. [2021-05-21 17:34:11,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:11,007 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:11,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:11,019 INFO L225 Difference]: With dead ends: 14755 [2021-05-21 17:34:11,019 INFO L226 Difference]: Without dead ends: 14755 [2021-05-21 17:34:11,020 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1180.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:11,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14755 states. [2021-05-21 17:34:11,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14755 to 6062. [2021-05-21 17:34:11,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6062 states, 6060 states have (on average 2.6762376237623764) internal successors, (16218), 6061 states have internal predecessors, (16218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:11,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6062 states to 6062 states and 16218 transitions. [2021-05-21 17:34:11,112 INFO L78 Accepts]: Start accepts. Automaton has 6062 states and 16218 transitions. Word has length 114 [2021-05-21 17:34:11,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:11,112 INFO L482 AbstractCegarLoop]: Abstraction has 6062 states and 16218 transitions. [2021-05-21 17:34:11,112 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:11,112 INFO L276 IsEmpty]: Start isEmpty. Operand 6062 states and 16218 transitions. [2021-05-21 17:34:11,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:11,116 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:11,116 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:11,116 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-05-21 17:34:11,116 INFO L430 AbstractCegarLoop]: === Iteration 196 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:11,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:11,116 INFO L82 PathProgramCache]: Analyzing trace with hash -299796436, now seen corresponding path program 190 times [2021-05-21 17:34:11,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:11,116 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950550361] [2021-05-21 17:34:11,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:11,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:34:11,400 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:11,400 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950550361] [2021-05-21 17:34:11,400 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950550361] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:11,400 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:11,400 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:11,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598833804] [2021-05-21 17:34:11,400 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:11,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:11,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:11,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:11,401 INFO L87 Difference]: Start difference. First operand 6062 states and 16218 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:12,190 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:34:12,365 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:12,542 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:12,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:12,658 INFO L93 Difference]: Finished difference Result 12113 states and 31868 transitions. [2021-05-21 17:34:12,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:12,658 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:12,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:12,667 INFO L225 Difference]: With dead ends: 12113 [2021-05-21 17:34:12,667 INFO L226 Difference]: Without dead ends: 12113 [2021-05-21 17:34:12,667 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1168.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:12,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12113 states. [2021-05-21 17:34:12,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12113 to 5946. [2021-05-21 17:34:12,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5946 states, 5944 states have (on average 2.6695827725437415) internal successors, (15868), 5945 states have internal predecessors, (15868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:12,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5946 states to 5946 states and 15868 transitions. [2021-05-21 17:34:12,749 INFO L78 Accepts]: Start accepts. Automaton has 5946 states and 15868 transitions. Word has length 114 [2021-05-21 17:34:12,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:12,749 INFO L482 AbstractCegarLoop]: Abstraction has 5946 states and 15868 transitions. [2021-05-21 17:34:12,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:12,749 INFO L276 IsEmpty]: Start isEmpty. Operand 5946 states and 15868 transitions. [2021-05-21 17:34:12,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:12,753 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:12,753 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] [2021-05-21 17:34:12,753 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-05-21 17:34:12,753 INFO L430 AbstractCegarLoop]: === Iteration 197 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:12,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:12,753 INFO L82 PathProgramCache]: Analyzing trace with hash 844759660, now seen corresponding path program 191 times [2021-05-21 17:34:12,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:12,753 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625355754] [2021-05-21 17:34:12,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:13,036 INFO 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 17:34:13,037 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:13,037 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625355754] [2021-05-21 17:34:13,037 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625355754] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:13,037 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:13,037 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:13,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59606443] [2021-05-21 17:34:13,037 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:13,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:13,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:13,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:13,037 INFO L87 Difference]: Start difference. First operand 5946 states and 15868 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:13,717 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:34:13,850 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:34:14,016 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:14,188 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:14,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:14,332 INFO L93 Difference]: Finished difference Result 14925 states and 39163 transitions. [2021-05-21 17:34:14,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:14,333 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:14,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:14,345 INFO L225 Difference]: With dead ends: 14925 [2021-05-21 17:34:14,345 INFO L226 Difference]: Without dead ends: 14925 [2021-05-21 17:34:14,345 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1151.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:14,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14925 states. [2021-05-21 17:34:14,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14925 to 6026. [2021-05-21 17:34:14,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6026 states, 6024 states have (on average 2.6723107569721116) internal successors, (16098), 6025 states have internal predecessors, (16098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:14,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 16098 transitions. [2021-05-21 17:34:14,438 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 16098 transitions. Word has length 114 [2021-05-21 17:34:14,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:14,438 INFO L482 AbstractCegarLoop]: Abstraction has 6026 states and 16098 transitions. [2021-05-21 17:34:14,438 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:14,438 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 16098 transitions. [2021-05-21 17:34:14,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:14,442 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:14,442 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] [2021-05-21 17:34:14,442 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-05-21 17:34:14,442 INFO L430 AbstractCegarLoop]: === Iteration 198 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:14,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:14,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1536970900, now seen corresponding path program 192 times [2021-05-21 17:34:14,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:14,442 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328726221] [2021-05-21 17:34:14,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:14,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:34:14,749 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:14,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328726221] [2021-05-21 17:34:14,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328726221] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:14,749 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:14,750 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:14,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016526257] [2021-05-21 17:34:14,750 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:14,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:14,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:14,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:14,750 INFO L87 Difference]: Start difference. First operand 6026 states and 16098 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:15,576 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:15,726 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:15,899 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:16,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:16,043 INFO L93 Difference]: Finished difference Result 17549 states and 45886 transitions. [2021-05-21 17:34:16,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:16,044 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:16,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:16,058 INFO L225 Difference]: With dead ends: 17549 [2021-05-21 17:34:16,058 INFO L226 Difference]: Without dead ends: 17549 [2021-05-21 17:34:16,058 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1179.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:16,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17549 states. [2021-05-21 17:34:16,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17549 to 6042. [2021-05-21 17:34:16,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6042 states, 6040 states have (on average 2.672847682119205) internal successors, (16144), 6041 states have internal predecessors, (16144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:16,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6042 states to 6042 states and 16144 transitions. [2021-05-21 17:34:16,165 INFO L78 Accepts]: Start accepts. Automaton has 6042 states and 16144 transitions. Word has length 114 [2021-05-21 17:34:16,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:16,165 INFO L482 AbstractCegarLoop]: Abstraction has 6042 states and 16144 transitions. [2021-05-21 17:34:16,165 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:16,165 INFO L276 IsEmpty]: Start isEmpty. Operand 6042 states and 16144 transitions. [2021-05-21 17:34:16,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:16,169 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:16,169 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:16,170 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-05-21 17:34:16,170 INFO L430 AbstractCegarLoop]: === Iteration 199 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:16,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:16,170 INFO L82 PathProgramCache]: Analyzing trace with hash 598503722, now seen corresponding path program 193 times [2021-05-21 17:34:16,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:16,170 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208202015] [2021-05-21 17:34:16,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:16,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:34:16,455 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:16,455 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208202015] [2021-05-21 17:34:16,455 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208202015] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:16,455 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:16,455 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:16,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253144737] [2021-05-21 17:34:16,455 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:16,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:16,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:16,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:16,456 INFO L87 Difference]: Start difference. First operand 6042 states and 16144 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:17,273 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:17,432 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:34:17,599 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:34:17,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:17,727 INFO L93 Difference]: Finished difference Result 15829 states and 41174 transitions. [2021-05-21 17:34:17,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:17,727 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:17,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:17,740 INFO L225 Difference]: With dead ends: 15829 [2021-05-21 17:34:17,740 INFO L226 Difference]: Without dead ends: 15829 [2021-05-21 17:34:17,740 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1178.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:17,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15829 states. [2021-05-21 17:34:17,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15829 to 5994. [2021-05-21 17:34:17,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5994 states, 5992 states have (on average 2.6712283044058744) internal successors, (16006), 5993 states have internal predecessors, (16006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:17,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5994 states to 5994 states and 16006 transitions. [2021-05-21 17:34:17,840 INFO L78 Accepts]: Start accepts. Automaton has 5994 states and 16006 transitions. Word has length 114 [2021-05-21 17:34:17,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:17,840 INFO L482 AbstractCegarLoop]: Abstraction has 5994 states and 16006 transitions. [2021-05-21 17:34:17,841 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:17,841 INFO L276 IsEmpty]: Start isEmpty. Operand 5994 states and 16006 transitions. [2021-05-21 17:34:17,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:17,845 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:17,845 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:17,845 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-05-21 17:34:17,845 INFO L430 AbstractCegarLoop]: === Iteration 200 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:17,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:17,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1215224276, now seen corresponding path program 194 times [2021-05-21 17:34:17,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:17,845 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003901498] [2021-05-21 17:34:17,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:18,113 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 17:34:18,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:18,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003901498] [2021-05-21 17:34:18,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003901498] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:18,114 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:18,114 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:18,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105859113] [2021-05-21 17:34:18,114 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:18,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:18,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:18,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:18,114 INFO L87 Difference]: Start difference. First operand 5994 states and 16006 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:18,914 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:19,065 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:19,233 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:19,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:19,364 INFO L93 Difference]: Finished difference Result 15029 states and 39321 transitions. [2021-05-21 17:34:19,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:19,364 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:19,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:19,377 INFO L225 Difference]: With dead ends: 15029 [2021-05-21 17:34:19,377 INFO L226 Difference]: Without dead ends: 15029 [2021-05-21 17:34:19,377 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1144.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:19,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15029 states. [2021-05-21 17:34:19,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15029 to 6026. [2021-05-21 17:34:19,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6026 states, 6024 states have (on average 2.6723107569721116) internal successors, (16098), 6025 states have internal predecessors, (16098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:19,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 16098 transitions. [2021-05-21 17:34:19,472 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 16098 transitions. Word has length 114 [2021-05-21 17:34:19,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:19,473 INFO L482 AbstractCegarLoop]: Abstraction has 6026 states and 16098 transitions. [2021-05-21 17:34:19,473 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:19,473 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 16098 transitions. [2021-05-21 17:34:19,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:19,476 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:19,477 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:19,477 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-05-21 17:34:19,477 INFO L430 AbstractCegarLoop]: === Iteration 201 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:19,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:19,477 INFO L82 PathProgramCache]: Analyzing trace with hash 920250346, now seen corresponding path program 195 times [2021-05-21 17:34:19,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:19,477 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842428742] [2021-05-21 17:34:19,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:19,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:34:19,777 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:19,778 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842428742] [2021-05-21 17:34:19,778 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842428742] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:19,778 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:19,778 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:19,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413263927] [2021-05-21 17:34:19,778 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:19,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:19,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:19,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:19,778 INFO L87 Difference]: Start difference. First operand 6026 states and 16098 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:20,596 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:20,760 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:34:20,927 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:34:21,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:21,076 INFO L93 Difference]: Finished difference Result 15875 states and 41181 transitions. [2021-05-21 17:34:21,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:21,076 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:21,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:21,089 INFO L225 Difference]: With dead ends: 15875 [2021-05-21 17:34:21,089 INFO L226 Difference]: Without dead ends: 15875 [2021-05-21 17:34:21,089 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1153.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:21,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15875 states. [2021-05-21 17:34:21,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15875 to 6010. [2021-05-21 17:34:21,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6010 states, 6008 states have (on average 2.6717709720372835) internal successors, (16052), 6009 states have internal predecessors, (16052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:21,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6010 states to 6010 states and 16052 transitions. [2021-05-21 17:34:21,187 INFO L78 Accepts]: Start accepts. Automaton has 6010 states and 16052 transitions. Word has length 114 [2021-05-21 17:34:21,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:21,187 INFO L482 AbstractCegarLoop]: Abstraction has 6010 states and 16052 transitions. [2021-05-21 17:34:21,187 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:21,187 INFO L276 IsEmpty]: Start isEmpty. Operand 6010 states and 16052 transitions. [2021-05-21 17:34:21,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:21,191 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:21,191 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:21,191 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-05-21 17:34:21,191 INFO L430 AbstractCegarLoop]: === Iteration 202 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:21,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:21,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1718113806, now seen corresponding path program 196 times [2021-05-21 17:34:21,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:21,192 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530521933] [2021-05-21 17:34:21,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:21,470 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 17:34:21,470 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:21,470 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530521933] [2021-05-21 17:34:21,470 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530521933] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:21,470 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:21,470 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:21,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816249808] [2021-05-21 17:34:21,470 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:21,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:21,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:21,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:21,471 INFO L87 Difference]: Start difference. First operand 6010 states and 16052 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:22,301 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:22,462 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:34:22,632 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:34:22,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:22,771 INFO L93 Difference]: Finished difference Result 15175 states and 39552 transitions. [2021-05-21 17:34:22,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:22,772 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:22,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:22,784 INFO L225 Difference]: With dead ends: 15175 [2021-05-21 17:34:22,784 INFO L226 Difference]: Without dead ends: 15175 [2021-05-21 17:34:22,784 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1174.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:22,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15175 states. [2021-05-21 17:34:22,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15175 to 6026. [2021-05-21 17:34:22,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6026 states, 6024 states have (on average 2.6723107569721116) internal successors, (16098), 6025 states have internal predecessors, (16098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:22,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 16098 transitions. [2021-05-21 17:34:22,878 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 16098 transitions. Word has length 114 [2021-05-21 17:34:22,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:22,878 INFO L482 AbstractCegarLoop]: Abstraction has 6026 states and 16098 transitions. [2021-05-21 17:34:22,878 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:22,878 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 16098 transitions. [2021-05-21 17:34:22,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:22,882 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:22,882 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:22,882 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-05-21 17:34:22,882 INFO L430 AbstractCegarLoop]: === Iteration 203 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:22,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:22,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1469566826, now seen corresponding path program 197 times [2021-05-21 17:34:22,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:22,882 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116971948] [2021-05-21 17:34:22,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:23,148 INFO 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 17:34:23,149 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:23,149 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116971948] [2021-05-21 17:34:23,149 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116971948] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:23,149 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:23,149 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:23,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571270485] [2021-05-21 17:34:23,149 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:23,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:23,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:23,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:23,149 INFO L87 Difference]: Start difference. First operand 6026 states and 16098 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:23,963 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:24,116 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:24,284 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:24,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:24,412 INFO L93 Difference]: Finished difference Result 12433 states and 32640 transitions. [2021-05-21 17:34:24,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:24,412 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:24,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:24,423 INFO L225 Difference]: With dead ends: 12433 [2021-05-21 17:34:24,423 INFO L226 Difference]: Without dead ends: 12433 [2021-05-21 17:34:24,424 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1138.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:24,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12433 states. [2021-05-21 17:34:24,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12433 to 5962. [2021-05-21 17:34:24,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5962 states, 5960 states have (on average 2.6701342281879197) internal successors, (15914), 5961 states have internal predecessors, (15914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:24,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5962 states to 5962 states and 15914 transitions. [2021-05-21 17:34:24,524 INFO L78 Accepts]: Start accepts. Automaton has 5962 states and 15914 transitions. Word has length 114 [2021-05-21 17:34:24,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:24,524 INFO L482 AbstractCegarLoop]: Abstraction has 5962 states and 15914 transitions. [2021-05-21 17:34:24,524 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:24,524 INFO L276 IsEmpty]: Start isEmpty. Operand 5962 states and 15914 transitions. [2021-05-21 17:34:24,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:24,528 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:24,528 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:24,528 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-05-21 17:34:24,528 INFO L430 AbstractCegarLoop]: === Iteration 204 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:24,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:24,528 INFO L82 PathProgramCache]: Analyzing trace with hash 750081422, now seen corresponding path program 198 times [2021-05-21 17:34:24,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:24,528 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998517758] [2021-05-21 17:34:24,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:24,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:34:24,825 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:24,825 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998517758] [2021-05-21 17:34:24,825 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998517758] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:24,825 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:24,825 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:24,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344916198] [2021-05-21 17:34:24,826 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:24,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:24,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:24,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:24,826 INFO L87 Difference]: Start difference. First operand 5962 states and 15914 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:25,630 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:34:25,800 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:25,972 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:26,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:26,120 INFO L93 Difference]: Finished difference Result 17847 states and 46751 transitions. [2021-05-21 17:34:26,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:26,120 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:26,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:26,135 INFO L225 Difference]: With dead ends: 17847 [2021-05-21 17:34:26,135 INFO L226 Difference]: Without dead ends: 17847 [2021-05-21 17:34:26,136 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1169.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:26,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17847 states. [2021-05-21 17:34:26,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17847 to 6010. [2021-05-21 17:34:26,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6010 states, 6008 states have (on average 2.6717709720372835) internal successors, (16052), 6009 states have internal predecessors, (16052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:26,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6010 states to 6010 states and 16052 transitions. [2021-05-21 17:34:26,243 INFO L78 Accepts]: Start accepts. Automaton has 6010 states and 16052 transitions. Word has length 114 [2021-05-21 17:34:26,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:26,243 INFO L482 AbstractCegarLoop]: Abstraction has 6010 states and 16052 transitions. [2021-05-21 17:34:26,243 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:26,243 INFO L276 IsEmpty]: Start isEmpty. Operand 6010 states and 16052 transitions. [2021-05-21 17:34:26,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:26,247 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:26,247 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:26,247 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-05-21 17:34:26,247 INFO L430 AbstractCegarLoop]: === Iteration 205 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:26,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:26,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1631649138, now seen corresponding path program 199 times [2021-05-21 17:34:26,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:26,248 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926103383] [2021-05-21 17:34:26,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:26,540 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 17:34:26,541 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:26,541 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926103383] [2021-05-21 17:34:26,541 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926103383] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:26,541 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:26,541 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:26,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416304564] [2021-05-21 17:34:26,541 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:26,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:26,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:26,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:26,542 INFO L87 Difference]: Start difference. First operand 6010 states and 16052 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:27,368 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:27,521 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:27,710 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:27,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:27,854 INFO L93 Difference]: Finished difference Result 17923 states and 46887 transitions. [2021-05-21 17:34:27,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:27,854 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:27,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:27,869 INFO L225 Difference]: With dead ends: 17923 [2021-05-21 17:34:27,869 INFO L226 Difference]: Without dead ends: 17923 [2021-05-21 17:34:27,869 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1198.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:27,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17923 states. [2021-05-21 17:34:27,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17923 to 6026. [2021-05-21 17:34:27,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6026 states, 6024 states have (on average 2.6723107569721116) internal successors, (16098), 6025 states have internal predecessors, (16098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:27,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6026 states to 6026 states and 16098 transitions. [2021-05-21 17:34:27,977 INFO L78 Accepts]: Start accepts. Automaton has 6026 states and 16098 transitions. Word has length 114 [2021-05-21 17:34:27,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:27,977 INFO L482 AbstractCegarLoop]: Abstraction has 6026 states and 16098 transitions. [2021-05-21 17:34:27,977 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:27,977 INFO L276 IsEmpty]: Start isEmpty. Operand 6026 states and 16098 transitions. [2021-05-21 17:34:27,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:27,981 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:27,981 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:27,981 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-05-21 17:34:27,981 INFO L430 AbstractCegarLoop]: === Iteration 206 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:27,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:27,982 INFO L82 PathProgramCache]: Analyzing trace with hash 503825484, now seen corresponding path program 200 times [2021-05-21 17:34:27,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:27,982 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668407792] [2021-05-21 17:34:27,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:28,276 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 17:34:28,276 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:28,276 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668407792] [2021-05-21 17:34:28,276 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668407792] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:28,276 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:28,277 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:28,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639295728] [2021-05-21 17:34:28,277 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:28,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:28,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:28,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:28,277 INFO L87 Difference]: Start difference. First operand 6026 states and 16098 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:29,085 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:29,247 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:34:29,416 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:34:29,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:29,567 INFO L93 Difference]: Finished difference Result 17307 states and 44913 transitions. [2021-05-21 17:34:29,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:29,567 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:29,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:29,581 INFO L225 Difference]: With dead ends: 17307 [2021-05-21 17:34:29,582 INFO L226 Difference]: Without dead ends: 17307 [2021-05-21 17:34:29,582 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1175.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:29,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17307 states. [2021-05-21 17:34:29,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17307 to 5978. [2021-05-21 17:34:29,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5978 states, 5976 states have (on average 2.6706827309236947) internal successors, (15960), 5977 states have internal predecessors, (15960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:29,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5978 states to 5978 states and 15960 transitions. [2021-05-21 17:34:29,689 INFO L78 Accepts]: Start accepts. Automaton has 5978 states and 15960 transitions. Word has length 114 [2021-05-21 17:34:29,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:29,689 INFO L482 AbstractCegarLoop]: Abstraction has 5978 states and 15960 transitions. [2021-05-21 17:34:29,689 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:29,689 INFO L276 IsEmpty]: Start isEmpty. Operand 5978 states and 15960 transitions. [2021-05-21 17:34:29,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:29,693 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:29,693 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:29,694 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-05-21 17:34:29,694 INFO L430 AbstractCegarLoop]: === Iteration 207 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:29,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:29,694 INFO L82 PathProgramCache]: Analyzing trace with hash 371264108, now seen corresponding path program 201 times [2021-05-21 17:34:29,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:29,694 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633200044] [2021-05-21 17:34:29,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:29,990 INFO 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 17:34:29,990 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:29,991 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633200044] [2021-05-21 17:34:29,991 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633200044] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:29,991 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:29,991 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:29,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106695907] [2021-05-21 17:34:29,991 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:29,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:29,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:29,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:29,991 INFO L87 Difference]: Start difference. First operand 5978 states and 15960 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:30,778 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:34:30,951 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:31,123 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:31,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:31,244 INFO L93 Difference]: Finished difference Result 13715 states and 35814 transitions. [2021-05-21 17:34:31,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:31,245 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:31,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:31,256 INFO L225 Difference]: With dead ends: 13715 [2021-05-21 17:34:31,256 INFO L226 Difference]: Without dead ends: 13715 [2021-05-21 17:34:31,256 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1152.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:31,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13715 states. [2021-05-21 17:34:31,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13715 to 5946. [2021-05-21 17:34:31,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5946 states, 5944 states have (on average 2.6695827725437415) internal successors, (15868), 5945 states have internal predecessors, (15868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:31,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5946 states to 5946 states and 15868 transitions. [2021-05-21 17:34:31,342 INFO L78 Accepts]: Start accepts. Automaton has 5946 states and 15868 transitions. Word has length 114 [2021-05-21 17:34:31,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:31,342 INFO L482 AbstractCegarLoop]: Abstraction has 5946 states and 15868 transitions. [2021-05-21 17:34:31,342 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:31,342 INFO L276 IsEmpty]: Start isEmpty. Operand 5946 states and 15868 transitions. [2021-05-21 17:34:31,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:31,345 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:31,345 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:31,345 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-05-21 17:34:31,346 INFO L430 AbstractCegarLoop]: === Iteration 208 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:31,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:31,346 INFO L82 PathProgramCache]: Analyzing trace with hash 344179114, now seen corresponding path program 202 times [2021-05-21 17:34:31,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:31,346 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620181583] [2021-05-21 17:34:31,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:31,653 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 17:34:31,654 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:31,654 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620181583] [2021-05-21 17:34:31,654 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620181583] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:31,654 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:31,654 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:31,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949474135] [2021-05-21 17:34:31,654 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:31,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:31,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:31,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:31,655 INFO L87 Difference]: Start difference. First operand 5946 states and 15868 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:32,454 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:34:32,619 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:32,788 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:32,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:32,914 INFO L93 Difference]: Finished difference Result 12937 states and 34234 transitions. [2021-05-21 17:34:32,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:32,914 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:32,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:32,924 INFO L225 Difference]: With dead ends: 12937 [2021-05-21 17:34:32,925 INFO L226 Difference]: Without dead ends: 12937 [2021-05-21 17:34:32,925 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1178.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:32,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12937 states. [2021-05-21 17:34:32,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12937 to 5994. [2021-05-21 17:34:33,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5994 states, 5992 states have (on average 2.6712283044058744) internal successors, (16006), 5993 states have internal predecessors, (16006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:33,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5994 states to 5994 states and 16006 transitions. [2021-05-21 17:34:33,009 INFO L78 Accepts]: Start accepts. Automaton has 5994 states and 16006 transitions. Word has length 114 [2021-05-21 17:34:33,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:33,010 INFO L482 AbstractCegarLoop]: Abstraction has 5994 states and 16006 transitions. [2021-05-21 17:34:33,010 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:33,010 INFO L276 IsEmpty]: Start isEmpty. Operand 5994 states and 16006 transitions. [2021-05-21 17:34:33,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:33,014 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:33,014 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:33,014 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-05-21 17:34:33,014 INFO L430 AbstractCegarLoop]: === Iteration 209 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:33,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:33,014 INFO L82 PathProgramCache]: Analyzing trace with hash -2037551446, now seen corresponding path program 203 times [2021-05-21 17:34:33,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:33,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805142270] [2021-05-21 17:34:33,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:33,322 INFO 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 17:34:33,323 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:33,323 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805142270] [2021-05-21 17:34:33,323 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805142270] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:33,323 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:33,323 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:33,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943686810] [2021-05-21 17:34:33,323 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:33,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:33,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:33,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:33,324 INFO L87 Difference]: Start difference. First operand 5994 states and 16006 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:34,017 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:34:34,174 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:34,328 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:34,515 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:34,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:34,648 INFO L93 Difference]: Finished difference Result 13013 states and 34370 transitions. [2021-05-21 17:34:34,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:34,649 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:34,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:34,659 INFO L225 Difference]: With dead ends: 13013 [2021-05-21 17:34:34,659 INFO L226 Difference]: Without dead ends: 13013 [2021-05-21 17:34:34,659 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1210.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:34,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13013 states. [2021-05-21 17:34:34,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13013 to 6010. [2021-05-21 17:34:34,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6010 states, 6008 states have (on average 2.6717709720372835) internal successors, (16052), 6009 states have internal predecessors, (16052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:34,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6010 states to 6010 states and 16052 transitions. [2021-05-21 17:34:34,744 INFO L78 Accepts]: Start accepts. Automaton has 6010 states and 16052 transitions. Word has length 114 [2021-05-21 17:34:34,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:34,744 INFO L482 AbstractCegarLoop]: Abstraction has 6010 states and 16052 transitions. [2021-05-21 17:34:34,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:34,744 INFO L276 IsEmpty]: Start isEmpty. Operand 6010 states and 16052 transitions. [2021-05-21 17:34:34,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:34,748 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:34,748 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:34,748 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-05-21 17:34:34,748 INFO L430 AbstractCegarLoop]: === Iteration 210 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:34,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:34,748 INFO L82 PathProgramCache]: Analyzing trace with hash 97923176, now seen corresponding path program 204 times [2021-05-21 17:34:34,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:34,748 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316616446] [2021-05-21 17:34:34,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:35,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:34:35,057 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:35,057 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316616446] [2021-05-21 17:34:35,057 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316616446] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:35,057 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:35,057 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:35,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066339364] [2021-05-21 17:34:35,057 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:35,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:35,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:35,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:35,058 INFO L87 Difference]: Start difference. First operand 6010 states and 16052 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:35,891 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:36,056 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:34:36,226 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:34:36,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:36,359 INFO L93 Difference]: Finished difference Result 12397 states and 32396 transitions. [2021-05-21 17:34:36,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:36,359 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:36,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:36,369 INFO L225 Difference]: With dead ends: 12397 [2021-05-21 17:34:36,370 INFO L226 Difference]: Without dead ends: 12397 [2021-05-21 17:34:36,370 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1191.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:36,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12397 states. [2021-05-21 17:34:36,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12397 to 5962. [2021-05-21 17:34:36,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5962 states, 5960 states have (on average 2.6701342281879197) internal successors, (15914), 5961 states have internal predecessors, (15914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:36,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5962 states to 5962 states and 15914 transitions. [2021-05-21 17:34:36,451 INFO L78 Accepts]: Start accepts. Automaton has 5962 states and 15914 transitions. Word has length 114 [2021-05-21 17:34:36,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:36,451 INFO L482 AbstractCegarLoop]: Abstraction has 5962 states and 15914 transitions. [2021-05-21 17:34:36,451 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:36,451 INFO L276 IsEmpty]: Start isEmpty. Operand 5962 states and 15914 transitions. [2021-05-21 17:34:36,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:36,455 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:36,455 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] [2021-05-21 17:34:36,455 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-05-21 17:34:36,456 INFO L430 AbstractCegarLoop]: === Iteration 211 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:36,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:36,456 INFO L82 PathProgramCache]: Analyzing trace with hash -34638200, now seen corresponding path program 205 times [2021-05-21 17:34:36,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:36,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669255071] [2021-05-21 17:34:36,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:36,798 INFO 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 17:34:36,798 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:36,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669255071] [2021-05-21 17:34:36,798 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669255071] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:36,798 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:36,798 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:36,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793941846] [2021-05-21 17:34:36,799 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:36,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:36,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:36,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:36,799 INFO L87 Difference]: Start difference. First operand 5962 states and 15914 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:37,591 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:34:37,763 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:37,938 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:38,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:38,055 INFO L93 Difference]: Finished difference Result 12465 states and 32702 transitions. [2021-05-21 17:34:38,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:38,055 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:38,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:38,065 INFO L225 Difference]: With dead ends: 12465 [2021-05-21 17:34:38,065 INFO L226 Difference]: Without dead ends: 12465 [2021-05-21 17:34:38,066 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1203.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:38,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12465 states. [2021-05-21 17:34:38,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12465 to 5946. [2021-05-21 17:34:38,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5946 states, 5944 states have (on average 2.6695827725437415) internal successors, (15868), 5945 states have internal predecessors, (15868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:38,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5946 states to 5946 states and 15868 transitions. [2021-05-21 17:34:38,148 INFO L78 Accepts]: Start accepts. Automaton has 5946 states and 15868 transitions. Word has length 114 [2021-05-21 17:34:38,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:38,148 INFO L482 AbstractCegarLoop]: Abstraction has 5946 states and 15868 transitions. [2021-05-21 17:34:38,148 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:38,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5946 states and 15868 transitions. [2021-05-21 17:34:38,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:38,153 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:38,153 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] [2021-05-21 17:34:38,153 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-05-21 17:34:38,153 INFO L430 AbstractCegarLoop]: === Iteration 212 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:38,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:38,153 INFO L82 PathProgramCache]: Analyzing trace with hash 305606158, now seen corresponding path program 206 times [2021-05-21 17:34:38,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:38,153 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562037048] [2021-05-21 17:34:38,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:38,471 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 17:34:38,472 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:38,472 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562037048] [2021-05-21 17:34:38,472 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562037048] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:38,472 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:38,472 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:38,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989103136] [2021-05-21 17:34:38,472 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:38,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:38,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:38,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:38,473 INFO L87 Difference]: Start difference. First operand 5946 states and 15868 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:39,266 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:34:39,449 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:39,620 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:39,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:39,744 INFO L93 Difference]: Finished difference Result 9091 states and 23978 transitions. [2021-05-21 17:34:39,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:39,745 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:39,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:39,752 INFO L225 Difference]: With dead ends: 9091 [2021-05-21 17:34:39,752 INFO L226 Difference]: Without dead ends: 9091 [2021-05-21 17:34:39,752 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1180.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:39,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9091 states. [2021-05-21 17:34:39,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9091 to 5798. [2021-05-21 17:34:39,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5798 states, 5796 states have (on average 2.663906142167012) internal successors, (15440), 5797 states have internal predecessors, (15440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:39,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5798 states to 5798 states and 15440 transitions. [2021-05-21 17:34:39,817 INFO L78 Accepts]: Start accepts. Automaton has 5798 states and 15440 transitions. Word has length 114 [2021-05-21 17:34:39,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:39,817 INFO L482 AbstractCegarLoop]: Abstraction has 5798 states and 15440 transitions. [2021-05-21 17:34:39,818 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:39,818 INFO L276 IsEmpty]: Start isEmpty. Operand 5798 states and 15440 transitions. [2021-05-21 17:34:39,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:39,821 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:39,821 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] [2021-05-21 17:34:39,821 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-05-21 17:34:39,822 INFO L430 AbstractCegarLoop]: === Iteration 213 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:39,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:39,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1879688244, now seen corresponding path program 207 times [2021-05-21 17:34:39,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:39,822 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263215257] [2021-05-21 17:34:39,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:40,103 INFO 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 17:34:40,103 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:40,103 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263215257] [2021-05-21 17:34:40,103 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263215257] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:40,103 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:40,103 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:40,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263081447] [2021-05-21 17:34:40,104 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:40,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:40,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:40,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:40,104 INFO L87 Difference]: Start difference. First operand 5798 states and 15440 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:40,921 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:34:41,089 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:41,260 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:41,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:41,411 INFO L93 Difference]: Finished difference Result 20011 states and 52272 transitions. [2021-05-21 17:34:41,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:41,412 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:41,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:41,428 INFO L225 Difference]: With dead ends: 20011 [2021-05-21 17:34:41,428 INFO L226 Difference]: Without dead ends: 20011 [2021-05-21 17:34:41,428 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1142.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:41,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20011 states. [2021-05-21 17:34:41,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20011 to 5926. [2021-05-21 17:34:41,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5924 states have (on average 2.6684672518568533) internal successors, (15808), 5925 states have internal predecessors, (15808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:41,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 15808 transitions. [2021-05-21 17:34:41,541 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 15808 transitions. Word has length 114 [2021-05-21 17:34:41,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:41,541 INFO L482 AbstractCegarLoop]: Abstraction has 5926 states and 15808 transitions. [2021-05-21 17:34:41,541 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:41,542 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 15808 transitions. [2021-05-21 17:34:41,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:41,545 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:41,545 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:41,546 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-05-21 17:34:41,546 INFO L430 AbstractCegarLoop]: === Iteration 214 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:41,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:41,546 INFO L82 PathProgramCache]: Analyzing trace with hash 33548492, now seen corresponding path program 208 times [2021-05-21 17:34:41,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:41,546 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546026826] [2021-05-21 17:34:41,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:41,850 INFO 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 17:34:41,850 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:41,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546026826] [2021-05-21 17:34:41,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546026826] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:41,850 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:41,850 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:41,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387755697] [2021-05-21 17:34:41,850 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:41,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:41,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:41,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:41,851 INFO L87 Difference]: Start difference. First operand 5926 states and 15808 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:42,661 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:42,825 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:42,995 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:43,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:43,140 INFO L93 Difference]: Finished difference Result 22635 states and 58995 transitions. [2021-05-21 17:34:43,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:43,141 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:43,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:43,159 INFO L225 Difference]: With dead ends: 22635 [2021-05-21 17:34:43,159 INFO L226 Difference]: Without dead ends: 22635 [2021-05-21 17:34:43,160 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1159.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:43,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22635 states. [2021-05-21 17:34:43,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22635 to 5942. [2021-05-21 17:34:43,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5942 states, 5940 states have (on average 2.669023569023569) internal successors, (15854), 5941 states have internal predecessors, (15854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:43,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5942 states to 5942 states and 15854 transitions. [2021-05-21 17:34:43,287 INFO L78 Accepts]: Start accepts. Automaton has 5942 states and 15854 transitions. Word has length 114 [2021-05-21 17:34:43,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:43,287 INFO L482 AbstractCegarLoop]: Abstraction has 5942 states and 15854 transitions. [2021-05-21 17:34:43,287 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:43,287 INFO L276 IsEmpty]: Start isEmpty. Operand 5942 states and 15854 transitions. [2021-05-21 17:34:43,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:43,291 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:43,291 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:43,291 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-05-21 17:34:43,291 INFO L430 AbstractCegarLoop]: === Iteration 215 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:43,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:43,291 INFO L82 PathProgramCache]: Analyzing trace with hash -2125944182, now seen corresponding path program 209 times [2021-05-21 17:34:43,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:43,291 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904699309] [2021-05-21 17:34:43,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:43,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:34:43,581 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:43,581 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904699309] [2021-05-21 17:34:43,581 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904699309] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:43,581 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:43,581 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:43,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187800515] [2021-05-21 17:34:43,581 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:43,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:43,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:43,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:43,581 INFO L87 Difference]: Start difference. First operand 5942 states and 15854 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:44,266 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:34:44,415 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:44,576 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:34:44,744 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:34:44,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:44,884 INFO L93 Difference]: Finished difference Result 20915 states and 54283 transitions. [2021-05-21 17:34:44,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:44,885 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:44,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:44,902 INFO L225 Difference]: With dead ends: 20915 [2021-05-21 17:34:44,903 INFO L226 Difference]: Without dead ends: 20915 [2021-05-21 17:34:44,903 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1189.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:44,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20915 states. [2021-05-21 17:34:45,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20915 to 5894. [2021-05-21 17:34:45,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5894 states, 5892 states have (on average 2.6673455532926003) internal successors, (15716), 5893 states have internal predecessors, (15716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:45,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5894 states to 5894 states and 15716 transitions. [2021-05-21 17:34:45,025 INFO L78 Accepts]: Start accepts. Automaton has 5894 states and 15716 transitions. Word has length 114 [2021-05-21 17:34:45,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:45,025 INFO L482 AbstractCegarLoop]: Abstraction has 5894 states and 15716 transitions. [2021-05-21 17:34:45,025 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:45,025 INFO L276 IsEmpty]: Start isEmpty. Operand 5894 states and 15716 transitions. [2021-05-21 17:34:45,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:45,029 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:45,029 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] [2021-05-21 17:34:45,029 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-05-21 17:34:45,029 INFO L430 AbstractCegarLoop]: === Iteration 216 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:45,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:45,030 INFO L82 PathProgramCache]: Analyzing trace with hash 355295116, now seen corresponding path program 210 times [2021-05-21 17:34:45,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:45,030 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122532090] [2021-05-21 17:34:45,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:45,296 INFO 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 17:34:45,296 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:45,297 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122532090] [2021-05-21 17:34:45,297 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122532090] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:45,297 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:45,297 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:45,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589856916] [2021-05-21 17:34:45,297 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:45,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:45,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:45,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:45,297 INFO L87 Difference]: Start difference. First operand 5894 states and 15716 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:46,133 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:46,288 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:46,459 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:46,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:46,613 INFO L93 Difference]: Finished difference Result 20115 states and 52430 transitions. [2021-05-21 17:34:46,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:46,613 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:46,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:46,630 INFO L225 Difference]: With dead ends: 20115 [2021-05-21 17:34:46,631 INFO L226 Difference]: Without dead ends: 20115 [2021-05-21 17:34:46,631 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1144.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:46,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20115 states. [2021-05-21 17:34:46,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20115 to 5926. [2021-05-21 17:34:46,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5924 states have (on average 2.6684672518568533) internal successors, (15808), 5925 states have internal predecessors, (15808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:46,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 15808 transitions. [2021-05-21 17:34:46,757 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 15808 transitions. Word has length 114 [2021-05-21 17:34:46,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:46,758 INFO L482 AbstractCegarLoop]: Abstraction has 5926 states and 15808 transitions. [2021-05-21 17:34:46,758 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:46,758 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 15808 transitions. [2021-05-21 17:34:46,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:46,762 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:46,762 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] [2021-05-21 17:34:46,762 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-05-21 17:34:46,762 INFO L430 AbstractCegarLoop]: === Iteration 217 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:46,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:46,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1804197558, now seen corresponding path program 211 times [2021-05-21 17:34:46,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:46,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087463280] [2021-05-21 17:34:46,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:47,034 INFO 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 17:34:47,035 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:47,035 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087463280] [2021-05-21 17:34:47,035 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087463280] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:47,035 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:47,035 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:47,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817561193] [2021-05-21 17:34:47,035 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:47,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:47,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:47,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:47,035 INFO L87 Difference]: Start difference. First operand 5926 states and 15808 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:47,873 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:48,039 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:34:48,206 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:34:48,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:48,367 INFO L93 Difference]: Finished difference Result 20961 states and 54290 transitions. [2021-05-21 17:34:48,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:48,367 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:48,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:48,386 INFO L225 Difference]: With dead ends: 20961 [2021-05-21 17:34:48,386 INFO L226 Difference]: Without dead ends: 20961 [2021-05-21 17:34:48,386 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1155.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:48,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20961 states. [2021-05-21 17:34:48,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20961 to 5910. [2021-05-21 17:34:48,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.6679079214624237) internal successors, (15762), 5909 states have internal predecessors, (15762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:48,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15762 transitions. [2021-05-21 17:34:48,514 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15762 transitions. Word has length 114 [2021-05-21 17:34:48,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:48,515 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15762 transitions. [2021-05-21 17:34:48,515 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:48,515 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15762 transitions. [2021-05-21 17:34:48,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:48,519 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:48,519 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] [2021-05-21 17:34:48,519 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-05-21 17:34:48,519 INFO L430 AbstractCegarLoop]: === Iteration 218 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:48,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:48,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1006334098, now seen corresponding path program 212 times [2021-05-21 17:34:48,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:48,520 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116328888] [2021-05-21 17:34:48,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:48,790 INFO 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 17:34:48,791 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:48,791 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116328888] [2021-05-21 17:34:48,791 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116328888] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:48,791 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:48,791 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:48,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740087364] [2021-05-21 17:34:48,791 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:48,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:48,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:48,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:48,791 INFO L87 Difference]: Start difference. First operand 5910 states and 15762 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:49,636 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:49,798 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:34:49,967 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:34:50,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:50,118 INFO L93 Difference]: Finished difference Result 20261 states and 52661 transitions. [2021-05-21 17:34:50,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:50,119 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:50,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:50,135 INFO L225 Difference]: With dead ends: 20261 [2021-05-21 17:34:50,136 INFO L226 Difference]: Without dead ends: 20261 [2021-05-21 17:34:50,136 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1166.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:50,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20261 states. [2021-05-21 17:34:50,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20261 to 5926. [2021-05-21 17:34:50,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5924 states have (on average 2.6684672518568533) internal successors, (15808), 5925 states have internal predecessors, (15808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:50,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 15808 transitions. [2021-05-21 17:34:50,250 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 15808 transitions. Word has length 114 [2021-05-21 17:34:50,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:50,250 INFO L482 AbstractCegarLoop]: Abstraction has 5926 states and 15808 transitions. [2021-05-21 17:34:50,251 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:50,251 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 15808 transitions. [2021-05-21 17:34:50,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:50,254 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:50,254 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:50,254 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-05-21 17:34:50,255 INFO L430 AbstractCegarLoop]: === Iteration 219 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:50,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:50,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1254881078, now seen corresponding path program 213 times [2021-05-21 17:34:50,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:50,255 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810599293] [2021-05-21 17:34:50,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:50,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:50,537 INFO 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 17:34:50,537 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:50,537 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810599293] [2021-05-21 17:34:50,537 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810599293] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:50,537 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:50,537 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:50,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160931622] [2021-05-21 17:34:50,537 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:50,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:50,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:50,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:50,538 INFO L87 Difference]: Start difference. First operand 5926 states and 15808 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:51,369 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:51,521 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:51,706 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:51,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:51,844 INFO L93 Difference]: Finished difference Result 17519 states and 45749 transitions. [2021-05-21 17:34:51,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:51,845 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:51,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:51,859 INFO L225 Difference]: With dead ends: 17519 [2021-05-21 17:34:51,859 INFO L226 Difference]: Without dead ends: 17519 [2021-05-21 17:34:51,859 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1175.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:51,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17519 states. [2021-05-21 17:34:51,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17519 to 5862. [2021-05-21 17:34:51,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5862 states, 5860 states have (on average 2.666211604095563) internal successors, (15624), 5861 states have internal predecessors, (15624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:51,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5862 states to 5862 states and 15624 transitions. [2021-05-21 17:34:51,962 INFO L78 Accepts]: Start accepts. Automaton has 5862 states and 15624 transitions. Word has length 114 [2021-05-21 17:34:51,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:51,962 INFO L482 AbstractCegarLoop]: Abstraction has 5862 states and 15624 transitions. [2021-05-21 17:34:51,962 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:51,962 INFO L276 IsEmpty]: Start isEmpty. Operand 5862 states and 15624 transitions. [2021-05-21 17:34:51,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:51,966 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:51,966 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:51,966 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-05-21 17:34:51,966 INFO L430 AbstractCegarLoop]: === Iteration 220 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:51,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:51,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1974366482, now seen corresponding path program 214 times [2021-05-21 17:34:51,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:51,967 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543799763] [2021-05-21 17:34:51,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:52,265 INFO 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 17:34:52,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:52,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543799763] [2021-05-21 17:34:52,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543799763] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:52,266 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:52,266 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:52,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619648115] [2021-05-21 17:34:52,266 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:52,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:52,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:52,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:52,266 INFO L87 Difference]: Start difference. First operand 5862 states and 15624 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:53,094 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:34:53,268 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:53,441 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:53,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:53,594 INFO L93 Difference]: Finished difference Result 18711 states and 49141 transitions. [2021-05-21 17:34:53,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:53,594 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:53,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:53,610 INFO L225 Difference]: With dead ends: 18711 [2021-05-21 17:34:53,610 INFO L226 Difference]: Without dead ends: 18711 [2021-05-21 17:34:53,611 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1166.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:53,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18711 states. [2021-05-21 17:34:53,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18711 to 5910. [2021-05-21 17:34:53,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.6679079214624237) internal successors, (15762), 5909 states have internal predecessors, (15762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:53,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15762 transitions. [2021-05-21 17:34:53,721 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15762 transitions. Word has length 114 [2021-05-21 17:34:53,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:53,721 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15762 transitions. [2021-05-21 17:34:53,721 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:53,722 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15762 transitions. [2021-05-21 17:34:53,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:53,725 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:53,725 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:53,726 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2021-05-21 17:34:53,726 INFO L430 AbstractCegarLoop]: === Iteration 221 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:53,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:53,726 INFO L82 PathProgramCache]: Analyzing trace with hash -61129746, now seen corresponding path program 215 times [2021-05-21 17:34:53,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:53,726 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370373803] [2021-05-21 17:34:53,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:54,072 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 17:34:54,072 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:54,072 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370373803] [2021-05-21 17:34:54,072 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370373803] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:54,072 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:54,072 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:54,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784550794] [2021-05-21 17:34:54,072 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:54,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:54,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:54,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:54,073 INFO L87 Difference]: Start difference. First operand 5910 states and 15762 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:54,922 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:55,081 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:55,255 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:55,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:55,407 INFO L93 Difference]: Finished difference Result 18787 states and 49277 transitions. [2021-05-21 17:34:55,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:55,407 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:55,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:55,423 INFO L225 Difference]: With dead ends: 18787 [2021-05-21 17:34:55,423 INFO L226 Difference]: Without dead ends: 18787 [2021-05-21 17:34:55,423 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1214.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:55,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18787 states. [2021-05-21 17:34:55,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18787 to 5926. [2021-05-21 17:34:55,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5924 states have (on average 2.6684672518568533) internal successors, (15808), 5925 states have internal predecessors, (15808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:55,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 15808 transitions. [2021-05-21 17:34:55,536 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 15808 transitions. Word has length 114 [2021-05-21 17:34:55,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:55,536 INFO L482 AbstractCegarLoop]: Abstraction has 5926 states and 15808 transitions. [2021-05-21 17:34:55,536 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:55,536 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 15808 transitions. [2021-05-21 17:34:55,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:55,540 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:55,540 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:55,540 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2021-05-21 17:34:55,540 INFO L430 AbstractCegarLoop]: === Iteration 222 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:55,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:55,540 INFO L82 PathProgramCache]: Analyzing trace with hash 2074344876, now seen corresponding path program 216 times [2021-05-21 17:34:55,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:55,540 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630325441] [2021-05-21 17:34:55,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:55,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:55,835 INFO 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 17:34:55,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:55,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630325441] [2021-05-21 17:34:55,836 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630325441] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:55,836 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:55,836 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:55,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757831584] [2021-05-21 17:34:55,836 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:55,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:55,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:55,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:55,836 INFO L87 Difference]: Start difference. First operand 5926 states and 15808 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:56,526 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:34:56,680 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:34:56,844 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:34:57,009 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:34:57,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:57,144 INFO L93 Difference]: Finished difference Result 18171 states and 47303 transitions. [2021-05-21 17:34:57,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:57,145 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:57,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:57,161 INFO L225 Difference]: With dead ends: 18171 [2021-05-21 17:34:57,161 INFO L226 Difference]: Without dead ends: 18171 [2021-05-21 17:34:57,161 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1198.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:57,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18171 states. [2021-05-21 17:34:57,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18171 to 5878. [2021-05-21 17:34:57,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5876 states have (on average 2.666780122532335) internal successors, (15670), 5877 states have internal predecessors, (15670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:57,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 15670 transitions. [2021-05-21 17:34:57,273 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 15670 transitions. Word has length 114 [2021-05-21 17:34:57,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:57,273 INFO L482 AbstractCegarLoop]: Abstraction has 5878 states and 15670 transitions. [2021-05-21 17:34:57,273 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:57,273 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 15670 transitions. [2021-05-21 17:34:57,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:57,277 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:57,277 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:57,277 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2021-05-21 17:34:57,278 INFO L430 AbstractCegarLoop]: === Iteration 223 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:57,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:57,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1941783500, now seen corresponding path program 217 times [2021-05-21 17:34:57,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:57,278 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059132620] [2021-05-21 17:34:57,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:57,576 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 17:34:57,577 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:57,577 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059132620] [2021-05-21 17:34:57,577 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059132620] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:57,577 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:57,577 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:57,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264469584] [2021-05-21 17:34:57,577 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:57,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:57,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:57,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:57,577 INFO L87 Difference]: Start difference. First operand 5878 states and 15670 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:58,386 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:34:58,557 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:34:58,727 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:34:58,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:34:58,861 INFO L93 Difference]: Finished difference Result 14931 states and 39056 transitions. [2021-05-21 17:34:58,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:34:58,861 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:34:58,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:34:58,873 INFO L225 Difference]: With dead ends: 14931 [2021-05-21 17:34:58,873 INFO L226 Difference]: Without dead ends: 14931 [2021-05-21 17:34:58,873 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1164.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:34:58,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14931 states. [2021-05-21 17:34:58,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14931 to 5846. [2021-05-21 17:34:58,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5846 states, 5844 states have (on average 2.6656399726214923) internal successors, (15578), 5845 states have internal predecessors, (15578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:58,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5846 states to 5846 states and 15578 transitions. [2021-05-21 17:34:58,983 INFO L78 Accepts]: Start accepts. Automaton has 5846 states and 15578 transitions. Word has length 114 [2021-05-21 17:34:58,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:34:58,983 INFO L482 AbstractCegarLoop]: Abstraction has 5846 states and 15578 transitions. [2021-05-21 17:34:58,983 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:34:58,983 INFO L276 IsEmpty]: Start isEmpty. Operand 5846 states and 15578 transitions. [2021-05-21 17:34:58,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:34:58,987 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:34:58,987 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:34:58,987 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2021-05-21 17:34:58,987 INFO L430 AbstractCegarLoop]: === Iteration 224 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:34:58,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:34:58,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1041667604, now seen corresponding path program 218 times [2021-05-21 17:34:58,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:34:58,988 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405328009] [2021-05-21 17:34:58,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:34:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:34:59,274 INFO 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 17:34:59,274 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:34:59,274 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405328009] [2021-05-21 17:34:59,274 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405328009] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:34:59,274 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:34:59,274 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:34:59,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039090788] [2021-05-21 17:34:59,274 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:34:59,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:34:59,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:34:59,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:34:59,275 INFO L87 Difference]: Start difference. First operand 5846 states and 15578 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:00,077 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:35:00,243 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:35:00,414 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:35:00,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:00,560 INFO L93 Difference]: Finished difference Result 19431 states and 50548 transitions. [2021-05-21 17:35:00,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:00,560 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:00,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:00,577 INFO L225 Difference]: With dead ends: 19431 [2021-05-21 17:35:00,577 INFO L226 Difference]: Without dead ends: 19431 [2021-05-21 17:35:00,577 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1142.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:00,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19431 states. [2021-05-21 17:35:00,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19431 to 5974. [2021-05-21 17:35:00,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:00,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-05-21 17:35:00,689 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-05-21 17:35:00,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:00,689 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-05-21 17:35:00,689 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:00,689 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-05-21 17:35:00,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:00,693 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:00,693 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:00,694 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2021-05-21 17:35:00,694 INFO L430 AbstractCegarLoop]: === Iteration 225 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:00,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:00,694 INFO L82 PathProgramCache]: Analyzing trace with hash 871569132, now seen corresponding path program 219 times [2021-05-21 17:35:00,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:00,694 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666496956] [2021-05-21 17:35:00,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:00,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:00,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:35:00,973 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:00,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666496956] [2021-05-21 17:35:00,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666496956] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:00,973 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:00,973 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:00,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478564330] [2021-05-21 17:35:00,973 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:00,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:00,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:00,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:00,974 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:01,695 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:35:01,867 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:02,036 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:35:02,242 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:35:02,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:02,400 INFO L93 Difference]: Finished difference Result 22055 states and 57271 transitions. [2021-05-21 17:35:02,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:02,400 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:02,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:02,421 INFO L225 Difference]: With dead ends: 22055 [2021-05-21 17:35:02,421 INFO L226 Difference]: Without dead ends: 22055 [2021-05-21 17:35:02,421 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1256.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:02,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22055 states. [2021-05-21 17:35:02,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22055 to 5990. [2021-05-21 17:35:02,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5990 states, 5988 states have (on average 2.670674682698731) internal successors, (15992), 5989 states have internal predecessors, (15992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:02,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5990 states to 5990 states and 15992 transitions. [2021-05-21 17:35:02,546 INFO L78 Accepts]: Start accepts. Automaton has 5990 states and 15992 transitions. Word has length 114 [2021-05-21 17:35:02,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:02,546 INFO L482 AbstractCegarLoop]: Abstraction has 5990 states and 15992 transitions. [2021-05-21 17:35:02,546 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:02,546 INFO L276 IsEmpty]: Start isEmpty. Operand 5990 states and 15992 transitions. [2021-05-21 17:35:02,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:02,550 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:02,550 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:02,550 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2021-05-21 17:35:02,550 INFO L430 AbstractCegarLoop]: === Iteration 226 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:02,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:02,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1287923542, now seen corresponding path program 220 times [2021-05-21 17:35:02,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:02,551 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14732210] [2021-05-21 17:35:02,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:02,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:35:02,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:02,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14732210] [2021-05-21 17:35:02,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14732210] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:02,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:02,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:02,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206476266] [2021-05-21 17:35:02,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:02,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:02,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:02,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:02,837 INFO L87 Difference]: Start difference. First operand 5990 states and 15992 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:03,700 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:03,869 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:35:04,066 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:35:04,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:04,221 INFO L93 Difference]: Finished difference Result 20335 states and 52559 transitions. [2021-05-21 17:35:04,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:04,221 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:04,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:04,238 INFO L225 Difference]: With dead ends: 20335 [2021-05-21 17:35:04,239 INFO L226 Difference]: Without dead ends: 20335 [2021-05-21 17:35:04,239 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1202.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:04,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20335 states. [2021-05-21 17:35:04,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20335 to 5942. [2021-05-21 17:35:04,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5942 states, 5940 states have (on average 2.669023569023569) internal successors, (15854), 5941 states have internal predecessors, (15854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:04,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5942 states to 5942 states and 15854 transitions. [2021-05-21 17:35:04,354 INFO L78 Accepts]: Start accepts. Automaton has 5942 states and 15854 transitions. Word has length 114 [2021-05-21 17:35:04,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:04,354 INFO L482 AbstractCegarLoop]: Abstraction has 5942 states and 15854 transitions. [2021-05-21 17:35:04,355 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:04,355 INFO L276 IsEmpty]: Start isEmpty. Operand 5942 states and 15854 transitions. [2021-05-21 17:35:04,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:04,359 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:04,359 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:04,359 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2021-05-21 17:35:04,359 INFO L430 AbstractCegarLoop]: === Iteration 227 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:04,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:04,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1193315756, now seen corresponding path program 221 times [2021-05-21 17:35:04,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:04,359 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444942263] [2021-05-21 17:35:04,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:04,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:35:04,630 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:04,630 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444942263] [2021-05-21 17:35:04,630 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444942263] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:04,630 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:04,630 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:04,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83843584] [2021-05-21 17:35:04,630 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:04,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:04,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:04,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:04,631 INFO L87 Difference]: Start difference. First operand 5942 states and 15854 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:05,477 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:05,635 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:35:05,812 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:35:05,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:05,980 INFO L93 Difference]: Finished difference Result 23411 states and 60488 transitions. [2021-05-21 17:35:05,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:05,980 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:05,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:06,001 INFO L225 Difference]: With dead ends: 23411 [2021-05-21 17:35:06,001 INFO L226 Difference]: Without dead ends: 23411 [2021-05-21 17:35:06,001 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1154.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:06,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23411 states. [2021-05-21 17:35:06,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23411 to 5974. [2021-05-21 17:35:06,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:06,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-05-21 17:35:06,133 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-05-21 17:35:06,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:06,133 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-05-21 17:35:06,133 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:06,133 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-05-21 17:35:06,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:06,137 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:06,137 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:06,137 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2021-05-21 17:35:06,137 INFO L430 AbstractCegarLoop]: === Iteration 228 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:06,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:06,138 INFO L82 PathProgramCache]: Analyzing trace with hash -966176918, now seen corresponding path program 222 times [2021-05-21 17:35:06,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:06,138 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105478131] [2021-05-21 17:35:06,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:06,437 INFO 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 17:35:06,437 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:06,437 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105478131] [2021-05-21 17:35:06,437 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105478131] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:06,437 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:06,437 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:06,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854644698] [2021-05-21 17:35:06,438 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:06,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:06,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:06,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:06,438 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:07,158 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:35:07,300 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:07,470 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:35:07,645 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:35:07,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:07,817 INFO L93 Difference]: Finished difference Result 24257 states and 62348 transitions. [2021-05-21 17:35:07,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:07,817 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:07,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:07,838 INFO L225 Difference]: With dead ends: 24257 [2021-05-21 17:35:07,838 INFO L226 Difference]: Without dead ends: 24257 [2021-05-21 17:35:07,838 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1203.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:07,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24257 states. [2021-05-21 17:35:07,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24257 to 5958. [2021-05-21 17:35:07,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5958 states, 5956 states have (on average 2.669576897246474) internal successors, (15900), 5957 states have internal predecessors, (15900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:07,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5958 states to 5958 states and 15900 transitions. [2021-05-21 17:35:07,975 INFO L78 Accepts]: Start accepts. Automaton has 5958 states and 15900 transitions. Word has length 114 [2021-05-21 17:35:07,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:07,975 INFO L482 AbstractCegarLoop]: Abstraction has 5958 states and 15900 transitions. [2021-05-21 17:35:07,975 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:07,975 INFO L276 IsEmpty]: Start isEmpty. Operand 5958 states and 15900 transitions. [2021-05-21 17:35:07,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:07,979 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:07,979 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:07,979 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-05-21 17:35:07,979 INFO L430 AbstractCegarLoop]: === Iteration 229 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:07,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:07,979 INFO L82 PathProgramCache]: Analyzing trace with hash -168313458, now seen corresponding path program 223 times [2021-05-21 17:35:07,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:07,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740803027] [2021-05-21 17:35:07,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:08,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:35:08,252 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:08,252 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740803027] [2021-05-21 17:35:08,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740803027] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:08,253 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:08,253 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:08,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776998310] [2021-05-21 17:35:08,253 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:08,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:08,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:08,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:08,253 INFO L87 Difference]: Start difference. First operand 5958 states and 15900 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:09,110 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:09,274 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:35:09,447 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:35:09,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:09,612 INFO L93 Difference]: Finished difference Result 23557 states and 60719 transitions. [2021-05-21 17:35:09,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:09,612 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:09,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:09,632 INFO L225 Difference]: With dead ends: 23557 [2021-05-21 17:35:09,633 INFO L226 Difference]: Without dead ends: 23557 [2021-05-21 17:35:09,633 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1174.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:09,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23557 states. [2021-05-21 17:35:09,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23557 to 5974. [2021-05-21 17:35:09,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:09,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-05-21 17:35:09,773 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-05-21 17:35:09,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:09,773 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-05-21 17:35:09,773 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:09,774 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-05-21 17:35:09,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:09,777 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:09,778 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] [2021-05-21 17:35:09,778 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2021-05-21 17:35:09,778 INFO L430 AbstractCegarLoop]: === Iteration 230 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:09,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:09,778 INFO L82 PathProgramCache]: Analyzing trace with hash -416860438, now seen corresponding path program 224 times [2021-05-21 17:35:09,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:09,778 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380442426] [2021-05-21 17:35:09,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:09,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:10,045 INFO 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 17:35:10,045 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:10,045 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380442426] [2021-05-21 17:35:10,045 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380442426] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:10,045 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:10,045 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:10,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465578442] [2021-05-21 17:35:10,045 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:10,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:10,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:10,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:10,046 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:10,859 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:11,011 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:35:11,180 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:35:11,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:11,309 INFO L93 Difference]: Finished difference Result 20515 states and 53057 transitions. [2021-05-21 17:35:11,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:11,310 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:11,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:11,327 INFO L225 Difference]: With dead ends: 20515 [2021-05-21 17:35:11,327 INFO L226 Difference]: Without dead ends: 20515 [2021-05-21 17:35:11,327 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1142.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:11,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20515 states. [2021-05-21 17:35:11,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20515 to 5910. [2021-05-21 17:35:11,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.6679079214624237) internal successors, (15762), 5909 states have internal predecessors, (15762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:11,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15762 transitions. [2021-05-21 17:35:11,454 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15762 transitions. Word has length 114 [2021-05-21 17:35:11,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:11,454 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15762 transitions. [2021-05-21 17:35:11,454 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:11,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15762 transitions. [2021-05-21 17:35:11,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:11,458 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:11,459 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:11,459 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2021-05-21 17:35:11,459 INFO L430 AbstractCegarLoop]: === Iteration 231 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:11,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:11,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1058113582, now seen corresponding path program 225 times [2021-05-21 17:35:11,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:11,459 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703737705] [2021-05-21 17:35:11,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:11,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:11,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:35:11,729 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:11,729 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703737705] [2021-05-21 17:35:11,729 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703737705] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:11,730 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:11,730 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:11,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083992611] [2021-05-21 17:35:11,730 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:11,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:11,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:11,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:11,730 INFO L87 Difference]: Start difference. First operand 5910 states and 15762 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:12,550 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:12,706 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:35:12,875 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:35:13,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:13,012 INFO L93 Difference]: Finished difference Result 18991 states and 49322 transitions. [2021-05-21 17:35:13,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:13,013 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:13,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:13,029 INFO L225 Difference]: With dead ends: 18991 [2021-05-21 17:35:13,029 INFO L226 Difference]: Without dead ends: 18991 [2021-05-21 17:35:13,030 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1154.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:13,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18991 states. [2021-05-21 17:35:13,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18991 to 5974. [2021-05-21 17:35:13,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:13,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-05-21 17:35:13,142 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-05-21 17:35:13,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:13,142 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-05-21 17:35:13,143 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:13,143 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-05-21 17:35:13,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:13,147 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:13,147 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:13,147 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2021-05-21 17:35:13,147 INFO L430 AbstractCegarLoop]: === Iteration 232 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:13,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:13,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1101379092, now seen corresponding path program 226 times [2021-05-21 17:35:13,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:13,147 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298283199] [2021-05-21 17:35:13,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:13,425 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 17:35:13,425 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:13,425 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298283199] [2021-05-21 17:35:13,425 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298283199] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:13,425 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:13,425 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:13,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644655183] [2021-05-21 17:35:13,425 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:13,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:13,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:13,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:13,426 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:14,130 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:35:14,269 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:14,433 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:35:14,598 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:35:14,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:14,734 INFO L93 Difference]: Finished difference Result 19837 states and 51182 transitions. [2021-05-21 17:35:14,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:14,734 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:14,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:14,751 INFO L225 Difference]: With dead ends: 19837 [2021-05-21 17:35:14,751 INFO L226 Difference]: Without dead ends: 19837 [2021-05-21 17:35:14,751 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1186.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:14,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19837 states. [2021-05-21 17:35:14,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19837 to 5958. [2021-05-21 17:35:14,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5958 states, 5956 states have (on average 2.669576897246474) internal successors, (15900), 5957 states have internal predecessors, (15900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:14,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5958 states to 5958 states and 15900 transitions. [2021-05-21 17:35:14,874 INFO L78 Accepts]: Start accepts. Automaton has 5958 states and 15900 transitions. Word has length 114 [2021-05-21 17:35:14,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:14,875 INFO L482 AbstractCegarLoop]: Abstraction has 5958 states and 15900 transitions. [2021-05-21 17:35:14,875 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:14,875 INFO L276 IsEmpty]: Start isEmpty. Operand 5958 states and 15900 transitions. [2021-05-21 17:35:14,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:14,879 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:14,879 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:14,879 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2021-05-21 17:35:14,879 INFO L430 AbstractCegarLoop]: === Iteration 233 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:14,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:14,880 INFO L82 PathProgramCache]: Analyzing trace with hash -303515632, now seen corresponding path program 227 times [2021-05-21 17:35:14,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:14,880 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140317668] [2021-05-21 17:35:14,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:15,153 INFO 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 17:35:15,153 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:15,153 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140317668] [2021-05-21 17:35:15,153 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140317668] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:15,153 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:15,153 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:15,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669836806] [2021-05-21 17:35:15,154 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:15,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:15,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:15,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:15,154 INFO L87 Difference]: Start difference. First operand 5958 states and 15900 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:16,001 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:16,165 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:35:16,351 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:35:16,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:16,521 INFO L93 Difference]: Finished difference Result 23043 states and 59296 transitions. [2021-05-21 17:35:16,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:16,521 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:16,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:16,540 INFO L225 Difference]: With dead ends: 23043 [2021-05-21 17:35:16,541 INFO L226 Difference]: Without dead ends: 23043 [2021-05-21 17:35:16,541 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1178.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:16,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23043 states. [2021-05-21 17:35:16,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23043 to 5974. [2021-05-21 17:35:16,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:16,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-05-21 17:35:16,667 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-05-21 17:35:16,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:16,667 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-05-21 17:35:16,667 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:16,667 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-05-21 17:35:16,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:16,671 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:16,672 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:16,672 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2021-05-21 17:35:16,672 INFO L430 AbstractCegarLoop]: === Iteration 234 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:16,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:16,672 INFO L82 PathProgramCache]: Analyzing trace with hash -552062612, now seen corresponding path program 228 times [2021-05-21 17:35:16,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:16,672 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373470056] [2021-05-21 17:35:16,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:16,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:35:16,946 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:16,946 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373470056] [2021-05-21 17:35:16,946 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373470056] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:16,946 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:16,946 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:16,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699205315] [2021-05-21 17:35:16,947 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:16,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:16,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:16,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:16,947 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:17,631 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:35:17,773 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:17,928 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:35:18,098 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:35:18,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:18,227 INFO L93 Difference]: Finished difference Result 20001 states and 51634 transitions. [2021-05-21 17:35:18,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:18,228 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:18,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:18,245 INFO L225 Difference]: With dead ends: 20001 [2021-05-21 17:35:18,245 INFO L226 Difference]: Without dead ends: 20001 [2021-05-21 17:35:18,245 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1164.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:18,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20001 states. [2021-05-21 17:35:18,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20001 to 5942. [2021-05-21 17:35:18,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5942 states, 5940 states have (on average 2.669023569023569) internal successors, (15854), 5941 states have internal predecessors, (15854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:18,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5942 states to 5942 states and 15854 transitions. [2021-05-21 17:35:18,369 INFO L78 Accepts]: Start accepts. Automaton has 5942 states and 15854 transitions. Word has length 114 [2021-05-21 17:35:18,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:18,369 INFO L482 AbstractCegarLoop]: Abstraction has 5942 states and 15854 transitions. [2021-05-21 17:35:18,370 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:18,370 INFO L276 IsEmpty]: Start isEmpty. Operand 5942 states and 15854 transitions. [2021-05-21 17:35:18,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:18,374 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:18,374 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] [2021-05-21 17:35:18,374 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2021-05-21 17:35:18,374 INFO L430 AbstractCegarLoop]: === Iteration 235 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:18,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:18,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1572332918, now seen corresponding path program 229 times [2021-05-21 17:35:18,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:18,374 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447521543] [2021-05-21 17:35:18,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:18,686 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 17:35:18,687 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:18,687 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447521543] [2021-05-21 17:35:18,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447521543] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:18,687 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:18,687 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:18,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593469655] [2021-05-21 17:35:18,687 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:18,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:18,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:18,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:18,688 INFO L87 Difference]: Start difference. First operand 5942 states and 15854 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:19,501 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:19,664 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:35:19,833 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:35:19,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:19,967 INFO L93 Difference]: Finished difference Result 19121 states and 49507 transitions. [2021-05-21 17:35:19,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:19,967 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:19,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:19,983 INFO L225 Difference]: With dead ends: 19121 [2021-05-21 17:35:19,983 INFO L226 Difference]: Without dead ends: 19121 [2021-05-21 17:35:19,984 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1199.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:20,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19121 states. [2021-05-21 17:35:20,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19121 to 5990. [2021-05-21 17:35:20,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5990 states, 5988 states have (on average 2.670674682698731) internal successors, (15992), 5989 states have internal predecessors, (15992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:20,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5990 states to 5990 states and 15992 transitions. [2021-05-21 17:35:20,093 INFO L78 Accepts]: Start accepts. Automaton has 5990 states and 15992 transitions. Word has length 114 [2021-05-21 17:35:20,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:20,093 INFO L482 AbstractCegarLoop]: Abstraction has 5990 states and 15992 transitions. [2021-05-21 17:35:20,093 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:20,093 INFO L276 IsEmpty]: Start isEmpty. Operand 5990 states and 15992 transitions. [2021-05-21 17:35:20,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:20,097 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:20,097 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:20,097 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2021-05-21 17:35:20,097 INFO L430 AbstractCegarLoop]: === Iteration 236 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:20,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:20,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1820879898, now seen corresponding path program 230 times [2021-05-21 17:35:20,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:20,098 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377732227] [2021-05-21 17:35:20,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:20,376 INFO 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 17:35:20,376 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:20,376 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377732227] [2021-05-21 17:35:20,376 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377732227] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:20,376 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:20,376 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:20,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070475273] [2021-05-21 17:35:20,376 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:20,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:20,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:20,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:20,377 INFO L87 Difference]: Start difference. First operand 5990 states and 15992 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:21,089 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:35:21,240 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:21,395 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:35:21,570 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:35:21,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:21,710 INFO L93 Difference]: Finished difference Result 18957 states and 49105 transitions. [2021-05-21 17:35:21,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:21,710 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:21,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:21,726 INFO L225 Difference]: With dead ends: 18957 [2021-05-21 17:35:21,726 INFO L226 Difference]: Without dead ends: 18957 [2021-05-21 17:35:21,726 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1185.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:21,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18957 states. [2021-05-21 17:35:21,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18957 to 5974. [2021-05-21 17:35:21,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:21,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-05-21 17:35:21,838 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-05-21 17:35:21,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:21,838 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-05-21 17:35:21,838 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:21,838 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-05-21 17:35:21,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:21,842 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:21,842 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] [2021-05-21 17:35:21,842 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2021-05-21 17:35:21,842 INFO L430 AbstractCegarLoop]: === Iteration 237 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:21,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:21,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1317270094, now seen corresponding path program 231 times [2021-05-21 17:35:21,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:21,842 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383575540] [2021-05-21 17:35:21,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:21,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:22,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:35:22,125 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:22,125 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383575540] [2021-05-21 17:35:22,125 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383575540] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:22,125 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:22,125 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:22,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232713242] [2021-05-21 17:35:22,125 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:22,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:22,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:22,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:22,125 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:22,946 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:35:23,112 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:35:23,285 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:35:23,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:23,412 INFO L93 Difference]: Finished difference Result 16015 states and 41677 transitions. [2021-05-21 17:35:23,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:23,412 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:23,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:23,425 INFO L225 Difference]: With dead ends: 16015 [2021-05-21 17:35:23,425 INFO L226 Difference]: Without dead ends: 16015 [2021-05-21 17:35:23,426 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1152.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:23,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16015 states. [2021-05-21 17:35:23,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16015 to 5814. [2021-05-21 17:35:23,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5814 states, 5812 states have (on average 2.6644872677219547) internal successors, (15486), 5813 states have internal predecessors, (15486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:23,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5814 states to 5814 states and 15486 transitions. [2021-05-21 17:35:23,545 INFO L78 Accepts]: Start accepts. Automaton has 5814 states and 15486 transitions. Word has length 114 [2021-05-21 17:35:23,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:23,545 INFO L482 AbstractCegarLoop]: Abstraction has 5814 states and 15486 transitions. [2021-05-21 17:35:23,545 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:23,545 INFO L276 IsEmpty]: Start isEmpty. Operand 5814 states and 15486 transitions. [2021-05-21 17:35:23,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:23,549 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:23,549 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:23,549 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2021-05-21 17:35:23,549 INFO L430 AbstractCegarLoop]: === Iteration 238 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:23,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:23,549 INFO L82 PathProgramCache]: Analyzing trace with hash 255391690, now seen corresponding path program 232 times [2021-05-21 17:35:23,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:23,550 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135976176] [2021-05-21 17:35:23,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:23,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:23,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:35:23,837 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:23,837 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135976176] [2021-05-21 17:35:23,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135976176] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:23,838 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:23,838 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:23,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131749420] [2021-05-21 17:35:23,838 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:23,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:23,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:23,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:23,838 INFO L87 Difference]: Start difference. First operand 5814 states and 15486 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:24,651 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:35:24,814 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:35:24,985 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:35:25,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:25,115 INFO L93 Difference]: Finished difference Result 13869 states and 36203 transitions. [2021-05-21 17:35:25,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:25,116 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:25,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:25,127 INFO L225 Difference]: With dead ends: 13869 [2021-05-21 17:35:25,127 INFO L226 Difference]: Without dead ends: 13869 [2021-05-21 17:35:25,128 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1165.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:25,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13869 states. [2021-05-21 17:35:25,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13869 to 5974. [2021-05-21 17:35:25,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:25,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-05-21 17:35:25,224 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-05-21 17:35:25,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:25,224 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-05-21 17:35:25,224 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:25,224 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-05-21 17:35:25,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:25,228 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:25,228 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] [2021-05-21 17:35:25,228 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2021-05-21 17:35:25,228 INFO L430 AbstractCegarLoop]: === Iteration 239 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:25,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:25,229 INFO L82 PathProgramCache]: Analyzing trace with hash -2126338870, now seen corresponding path program 233 times [2021-05-21 17:35:25,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:25,229 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664482617] [2021-05-21 17:35:25,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:25,509 INFO 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 17:35:25,509 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:25,509 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664482617] [2021-05-21 17:35:25,509 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664482617] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:25,509 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:25,509 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:25,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229042713] [2021-05-21 17:35:25,509 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:25,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:25,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:25,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:25,510 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:26,196 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:35:26,348 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:26,500 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:35:26,672 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:35:26,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:26,804 INFO L93 Difference]: Finished difference Result 16493 states and 42926 transitions. [2021-05-21 17:35:26,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:26,804 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:26,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:26,817 INFO L225 Difference]: With dead ends: 16493 [2021-05-21 17:35:26,817 INFO L226 Difference]: Without dead ends: 16493 [2021-05-21 17:35:26,818 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1164.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:26,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16493 states. [2021-05-21 17:35:26,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16493 to 5990. [2021-05-21 17:35:26,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5990 states, 5988 states have (on average 2.670674682698731) internal successors, (15992), 5989 states have internal predecessors, (15992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:26,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5990 states to 5990 states and 15992 transitions. [2021-05-21 17:35:26,916 INFO L78 Accepts]: Start accepts. Automaton has 5990 states and 15992 transitions. Word has length 114 [2021-05-21 17:35:26,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:26,916 INFO L482 AbstractCegarLoop]: Abstraction has 5990 states and 15992 transitions. [2021-05-21 17:35:26,916 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:26,916 INFO L276 IsEmpty]: Start isEmpty. Operand 5990 states and 15992 transitions. [2021-05-21 17:35:26,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:26,920 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:26,920 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] [2021-05-21 17:35:26,920 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2021-05-21 17:35:26,920 INFO L430 AbstractCegarLoop]: === Iteration 240 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:26,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:26,920 INFO L82 PathProgramCache]: Analyzing trace with hash 9135752, now seen corresponding path program 234 times [2021-05-21 17:35:26,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:26,921 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476640050] [2021-05-21 17:35:26,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:26,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:27,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:35:27,205 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:27,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476640050] [2021-05-21 17:35:27,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476640050] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:27,206 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:27,206 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:27,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412206430] [2021-05-21 17:35:27,206 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:27,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:27,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:27,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:27,206 INFO L87 Difference]: Start difference. First operand 5990 states and 15992 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:27,881 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:35:28,036 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:28,198 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:35:28,365 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:35:28,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:28,491 INFO L93 Difference]: Finished difference Result 14773 states and 38214 transitions. [2021-05-21 17:35:28,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:28,491 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:28,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:28,504 INFO L225 Difference]: With dead ends: 14773 [2021-05-21 17:35:28,504 INFO L226 Difference]: Without dead ends: 14773 [2021-05-21 17:35:28,504 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1179.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:28,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14773 states. [2021-05-21 17:35:28,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14773 to 5942. [2021-05-21 17:35:28,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5942 states, 5940 states have (on average 2.669023569023569) internal successors, (15854), 5941 states have internal predecessors, (15854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:28,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5942 states to 5942 states and 15854 transitions. [2021-05-21 17:35:28,611 INFO L78 Accepts]: Start accepts. Automaton has 5942 states and 15854 transitions. Word has length 114 [2021-05-21 17:35:28,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:28,611 INFO L482 AbstractCegarLoop]: Abstraction has 5942 states and 15854 transitions. [2021-05-21 17:35:28,611 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:28,611 INFO L276 IsEmpty]: Start isEmpty. Operand 5942 states and 15854 transitions. [2021-05-21 17:35:28,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:28,615 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:28,615 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:28,615 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2021-05-21 17:35:28,615 INFO L430 AbstractCegarLoop]: === Iteration 241 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:28,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:28,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1804592246, now seen corresponding path program 235 times [2021-05-21 17:35:28,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:28,616 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826028957] [2021-05-21 17:35:28,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:28,885 INFO 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 17:35:28,885 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:28,885 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826028957] [2021-05-21 17:35:28,885 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826028957] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:28,885 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:28,885 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:28,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565560164] [2021-05-21 17:35:28,885 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:28,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:28,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:28,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:28,886 INFO L87 Difference]: Start difference. First operand 5942 states and 15854 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:29,720 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:29,874 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:35:30,045 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:35:30,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:30,193 INFO L93 Difference]: Finished difference Result 17849 states and 46143 transitions. [2021-05-21 17:35:30,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:30,193 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:30,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:30,208 INFO L225 Difference]: With dead ends: 17849 [2021-05-21 17:35:30,208 INFO L226 Difference]: Without dead ends: 17849 [2021-05-21 17:35:30,208 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1145.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:30,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17849 states. [2021-05-21 17:35:30,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17849 to 5974. [2021-05-21 17:35:30,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:30,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-05-21 17:35:30,311 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-05-21 17:35:30,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:30,311 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-05-21 17:35:30,311 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:30,311 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-05-21 17:35:30,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:30,315 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:30,315 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:30,316 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2021-05-21 17:35:30,316 INFO L430 AbstractCegarLoop]: === Iteration 242 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:30,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:30,316 INFO L82 PathProgramCache]: Analyzing trace with hash 330882376, now seen corresponding path program 236 times [2021-05-21 17:35:30,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:30,316 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061993543] [2021-05-21 17:35:30,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:30,586 INFO 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 17:35:30,587 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:30,587 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061993543] [2021-05-21 17:35:30,587 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061993543] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:30,587 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:30,587 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:30,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386546020] [2021-05-21 17:35:30,587 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:30,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:30,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:30,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:30,587 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:31,453 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:31,621 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:35:31,788 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:35:31,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:31,940 INFO L93 Difference]: Finished difference Result 18695 states and 48003 transitions. [2021-05-21 17:35:31,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:31,941 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:31,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:31,956 INFO L225 Difference]: With dead ends: 18695 [2021-05-21 17:35:31,956 INFO L226 Difference]: Without dead ends: 18695 [2021-05-21 17:35:31,956 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1187.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:31,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18695 states. [2021-05-21 17:35:32,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18695 to 5958. [2021-05-21 17:35:32,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5958 states, 5956 states have (on average 2.669576897246474) internal successors, (15900), 5957 states have internal predecessors, (15900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:32,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5958 states to 5958 states and 15900 transitions. [2021-05-21 17:35:32,064 INFO L78 Accepts]: Start accepts. Automaton has 5958 states and 15900 transitions. Word has length 114 [2021-05-21 17:35:32,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:32,064 INFO L482 AbstractCegarLoop]: Abstraction has 5958 states and 15900 transitions. [2021-05-21 17:35:32,064 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:32,064 INFO L276 IsEmpty]: Start isEmpty. Operand 5958 states and 15900 transitions. [2021-05-21 17:35:32,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:32,068 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:32,068 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:32,068 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2021-05-21 17:35:32,068 INFO L430 AbstractCegarLoop]: === Iteration 243 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:32,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:32,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1128745836, now seen corresponding path program 237 times [2021-05-21 17:35:32,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:32,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238943109] [2021-05-21 17:35:32,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:32,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:32,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:35:32,340 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:32,340 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238943109] [2021-05-21 17:35:32,340 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238943109] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:32,340 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:32,340 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:32,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322323174] [2021-05-21 17:35:32,340 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:32,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:32,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:32,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:32,340 INFO L87 Difference]: Start difference. First operand 5958 states and 15900 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:33,146 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:33,306 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:35:33,490 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:35:33,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:33,622 INFO L93 Difference]: Finished difference Result 17995 states and 46374 transitions. [2021-05-21 17:35:33,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:33,622 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:33,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:33,638 INFO L225 Difference]: With dead ends: 17995 [2021-05-21 17:35:33,638 INFO L226 Difference]: Without dead ends: 17995 [2021-05-21 17:35:33,638 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1172.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:33,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17995 states. [2021-05-21 17:35:33,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17995 to 5974. [2021-05-21 17:35:33,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:33,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-05-21 17:35:33,742 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-05-21 17:35:33,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:33,742 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-05-21 17:35:33,742 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:33,742 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-05-21 17:35:33,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:33,746 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:33,746 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:33,746 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2021-05-21 17:35:33,746 INFO L430 AbstractCegarLoop]: === Iteration 244 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:33,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:33,746 INFO L82 PathProgramCache]: Analyzing trace with hash 880198856, now seen corresponding path program 238 times [2021-05-21 17:35:33,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:33,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562009856] [2021-05-21 17:35:33,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:33,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:34,018 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 17:35:34,018 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:34,018 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562009856] [2021-05-21 17:35:34,018 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562009856] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:34,018 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:34,018 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:34,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404258725] [2021-05-21 17:35:34,018 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:34,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:34,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:34,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:34,019 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:34,848 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:35,001 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:35:35,172 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:35:35,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:35,287 INFO L93 Difference]: Finished difference Result 14953 states and 38712 transitions. [2021-05-21 17:35:35,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:35,287 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:35,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:35,300 INFO L225 Difference]: With dead ends: 14953 [2021-05-21 17:35:35,300 INFO L226 Difference]: Without dead ends: 14953 [2021-05-21 17:35:35,301 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1167.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:35,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14953 states. [2021-05-21 17:35:35,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14953 to 5910. [2021-05-21 17:35:35,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.6679079214624237) internal successors, (15762), 5909 states have internal predecessors, (15762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:35,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15762 transitions. [2021-05-21 17:35:35,396 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15762 transitions. Word has length 114 [2021-05-21 17:35:35,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:35,396 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15762 transitions. [2021-05-21 17:35:35,396 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:35,396 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15762 transitions. [2021-05-21 17:35:35,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:35,400 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:35,400 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:35,400 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2021-05-21 17:35:35,400 INFO L430 AbstractCegarLoop]: === Iteration 245 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:35,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:35,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1939794420, now seen corresponding path program 239 times [2021-05-21 17:35:35,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:35,401 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318481726] [2021-05-21 17:35:35,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:35,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:35,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:35:35,673 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:35,673 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318481726] [2021-05-21 17:35:35,673 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318481726] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:35,673 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:35,673 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:35,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352613548] [2021-05-21 17:35:35,673 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:35,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:35,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:35,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:35,674 INFO L87 Difference]: Start difference. First operand 5910 states and 15762 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:36,537 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:36,695 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:35:36,869 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:35:37,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:37,018 INFO L93 Difference]: Finished difference Result 18377 states and 47613 transitions. [2021-05-21 17:35:37,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:37,018 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:37,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:37,034 INFO L225 Difference]: With dead ends: 18377 [2021-05-21 17:35:37,035 INFO L226 Difference]: Without dead ends: 18377 [2021-05-21 17:35:37,035 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1162.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:37,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18377 states. [2021-05-21 17:35:37,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18377 to 5974. [2021-05-21 17:35:37,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:37,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-05-21 17:35:37,148 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-05-21 17:35:37,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:37,148 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-05-21 17:35:37,148 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:37,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-05-21 17:35:37,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:37,152 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:37,152 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:37,152 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2021-05-21 17:35:37,152 INFO L430 AbstractCegarLoop]: === Iteration 246 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:37,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:37,153 INFO L82 PathProgramCache]: Analyzing trace with hash 195680202, now seen corresponding path program 240 times [2021-05-21 17:35:37,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:37,153 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316525939] [2021-05-21 17:35:37,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:37,430 INFO 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 17:35:37,430 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:37,430 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316525939] [2021-05-21 17:35:37,430 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316525939] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:37,430 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:37,431 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:37,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998687488] [2021-05-21 17:35:37,431 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:37,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:37,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:37,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:37,431 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:38,143 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:35:38,285 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:38,473 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:35:38,642 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:35:38,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:38,800 INFO L93 Difference]: Finished difference Result 19223 states and 49473 transitions. [2021-05-21 17:35:38,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:38,800 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:38,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:38,817 INFO L225 Difference]: With dead ends: 19223 [2021-05-21 17:35:38,818 INFO L226 Difference]: Without dead ends: 19223 [2021-05-21 17:35:38,818 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1193.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:38,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19223 states. [2021-05-21 17:35:38,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19223 to 5958. [2021-05-21 17:35:38,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5958 states, 5956 states have (on average 2.669576897246474) internal successors, (15900), 5957 states have internal predecessors, (15900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:38,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5958 states to 5958 states and 15900 transitions. [2021-05-21 17:35:38,936 INFO L78 Accepts]: Start accepts. Automaton has 5958 states and 15900 transitions. Word has length 114 [2021-05-21 17:35:38,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:38,936 INFO L482 AbstractCegarLoop]: Abstraction has 5958 states and 15900 transitions. [2021-05-21 17:35:38,936 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:38,936 INFO L276 IsEmpty]: Start isEmpty. Operand 5958 states and 15900 transitions. [2021-05-21 17:35:38,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:38,940 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:38,940 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] [2021-05-21 17:35:38,940 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2021-05-21 17:35:38,940 INFO L430 AbstractCegarLoop]: === Iteration 247 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:38,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:38,941 INFO L82 PathProgramCache]: Analyzing trace with hash 993543662, now seen corresponding path program 241 times [2021-05-21 17:35:38,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:38,941 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048888196] [2021-05-21 17:35:38,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:39,217 INFO 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 17:35:39,218 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:39,218 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048888196] [2021-05-21 17:35:39,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048888196] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:39,218 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:39,218 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:39,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448190653] [2021-05-21 17:35:39,218 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:39,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:39,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:39,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:39,219 INFO L87 Difference]: Start difference. First operand 5958 states and 15900 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:40,038 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:40,200 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:35:40,370 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:35:40,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:40,519 INFO L93 Difference]: Finished difference Result 22429 states and 57587 transitions. [2021-05-21 17:35:40,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:40,520 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:40,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:40,539 INFO L225 Difference]: With dead ends: 22429 [2021-05-21 17:35:40,539 INFO L226 Difference]: Without dead ends: 22429 [2021-05-21 17:35:40,539 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1171.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:40,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22429 states. [2021-05-21 17:35:40,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22429 to 5974. [2021-05-21 17:35:40,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:40,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-05-21 17:35:40,670 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-05-21 17:35:40,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:40,671 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-05-21 17:35:40,671 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:40,671 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-05-21 17:35:40,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:40,676 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:40,676 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:40,676 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2021-05-21 17:35:40,676 INFO L430 AbstractCegarLoop]: === Iteration 248 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:40,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:40,676 INFO L82 PathProgramCache]: Analyzing trace with hash 744996682, now seen corresponding path program 242 times [2021-05-21 17:35:40,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:40,676 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323397825] [2021-05-21 17:35:40,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:40,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:35:40,967 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:40,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323397825] [2021-05-21 17:35:40,967 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323397825] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:40,967 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:40,967 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:40,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280334392] [2021-05-21 17:35:40,967 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:40,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:40,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:40,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:40,967 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:41,774 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:41,924 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:35:42,091 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:35:42,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:42,219 INFO L93 Difference]: Finished difference Result 19387 states and 49925 transitions. [2021-05-21 17:35:42,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:42,219 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:42,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:42,235 INFO L225 Difference]: With dead ends: 19387 [2021-05-21 17:35:42,235 INFO L226 Difference]: Without dead ends: 19387 [2021-05-21 17:35:42,235 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1137.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:42,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19387 states. [2021-05-21 17:35:42,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19387 to 5942. [2021-05-21 17:35:42,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5942 states, 5940 states have (on average 2.669023569023569) internal successors, (15854), 5941 states have internal predecessors, (15854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:42,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5942 states to 5942 states and 15854 transitions. [2021-05-21 17:35:42,347 INFO L78 Accepts]: Start accepts. Automaton has 5942 states and 15854 transitions. Word has length 114 [2021-05-21 17:35:42,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:42,347 INFO L482 AbstractCegarLoop]: Abstraction has 5942 states and 15854 transitions. [2021-05-21 17:35:42,347 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:42,347 INFO L276 IsEmpty]: Start isEmpty. Operand 5942 states and 15854 transitions. [2021-05-21 17:35:42,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:42,351 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:42,351 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:42,351 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2021-05-21 17:35:42,351 INFO L430 AbstractCegarLoop]: === Iteration 249 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:42,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:42,351 INFO L82 PathProgramCache]: Analyzing trace with hash -275273624, now seen corresponding path program 243 times [2021-05-21 17:35:42,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:42,351 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984817304] [2021-05-21 17:35:42,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:42,633 INFO 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 17:35:42,633 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:42,633 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984817304] [2021-05-21 17:35:42,633 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984817304] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:42,633 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:42,633 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:42,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708852335] [2021-05-21 17:35:42,633 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:42,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:42,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:42,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:42,634 INFO L87 Difference]: Start difference. First operand 5942 states and 15854 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:43,496 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:43,662 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:35:43,833 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:35:43,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:43,980 INFO L93 Difference]: Finished difference Result 18507 states and 47798 transitions. [2021-05-21 17:35:43,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:43,980 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:43,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:43,995 INFO L225 Difference]: With dead ends: 18507 [2021-05-21 17:35:43,996 INFO L226 Difference]: Without dead ends: 18507 [2021-05-21 17:35:43,996 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1188.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:44,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18507 states. [2021-05-21 17:35:44,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18507 to 5990. [2021-05-21 17:35:44,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5990 states, 5988 states have (on average 2.670674682698731) internal successors, (15992), 5989 states have internal predecessors, (15992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:44,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5990 states to 5990 states and 15992 transitions. [2021-05-21 17:35:44,103 INFO L78 Accepts]: Start accepts. Automaton has 5990 states and 15992 transitions. Word has length 114 [2021-05-21 17:35:44,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:44,103 INFO L482 AbstractCegarLoop]: Abstraction has 5990 states and 15992 transitions. [2021-05-21 17:35:44,103 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:44,103 INFO L276 IsEmpty]: Start isEmpty. Operand 5990 states and 15992 transitions. [2021-05-21 17:35:44,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:44,108 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:44,108 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:44,108 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2021-05-21 17:35:44,108 INFO L430 AbstractCegarLoop]: === Iteration 250 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:44,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:44,108 INFO L82 PathProgramCache]: Analyzing trace with hash -523820604, now seen corresponding path program 244 times [2021-05-21 17:35:44,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:44,108 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932677935] [2021-05-21 17:35:44,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:44,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:44,391 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 17:35:44,391 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:44,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932677935] [2021-05-21 17:35:44,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932677935] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:44,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:44,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:44,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343712727] [2021-05-21 17:35:44,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:44,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:44,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:44,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:44,392 INFO L87 Difference]: Start difference. First operand 5990 states and 15992 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:45,086 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:35:45,242 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:45,400 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:35:45,576 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:35:45,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:45,717 INFO L93 Difference]: Finished difference Result 18343 states and 47396 transitions. [2021-05-21 17:35:45,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:45,717 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:45,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:45,732 INFO L225 Difference]: With dead ends: 18343 [2021-05-21 17:35:45,733 INFO L226 Difference]: Without dead ends: 18343 [2021-05-21 17:35:45,733 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1176.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:45,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18343 states. [2021-05-21 17:35:45,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18343 to 5974. [2021-05-21 17:35:45,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5974 states, 5972 states have (on average 2.6701272605492297) internal successors, (15946), 5973 states have internal predecessors, (15946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:45,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5974 states to 5974 states and 15946 transitions. [2021-05-21 17:35:45,851 INFO L78 Accepts]: Start accepts. Automaton has 5974 states and 15946 transitions. Word has length 114 [2021-05-21 17:35:45,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:45,851 INFO L482 AbstractCegarLoop]: Abstraction has 5974 states and 15946 transitions. [2021-05-21 17:35:45,851 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:45,851 INFO L276 IsEmpty]: Start isEmpty. Operand 5974 states and 15946 transitions. [2021-05-21 17:35:45,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:45,855 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:45,855 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:45,855 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2021-05-21 17:35:45,855 INFO L430 AbstractCegarLoop]: === Iteration 251 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:45,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:45,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1680637908, now seen corresponding path program 245 times [2021-05-21 17:35:45,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:45,856 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390483675] [2021-05-21 17:35:45,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:46,136 INFO 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 17:35:46,136 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:46,136 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390483675] [2021-05-21 17:35:46,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390483675] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:46,137 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:46,137 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:46,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139407377] [2021-05-21 17:35:46,137 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:46,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:46,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:46,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:46,137 INFO L87 Difference]: Start difference. First operand 5974 states and 15946 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:46,940 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:35:47,103 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:35:47,276 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:35:47,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:47,395 INFO L93 Difference]: Finished difference Result 15401 states and 39968 transitions. [2021-05-21 17:35:47,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:47,395 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:47,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:47,408 INFO L225 Difference]: With dead ends: 15401 [2021-05-21 17:35:47,408 INFO L226 Difference]: Without dead ends: 15401 [2021-05-21 17:35:47,408 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1153.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:47,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15401 states. [2021-05-21 17:35:47,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15401 to 5846. [2021-05-21 17:35:47,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5846 states, 5844 states have (on average 2.6656399726214923) internal successors, (15578), 5845 states have internal predecessors, (15578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:47,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5846 states to 5846 states and 15578 transitions. [2021-05-21 17:35:47,504 INFO L78 Accepts]: Start accepts. Automaton has 5846 states and 15578 transitions. Word has length 114 [2021-05-21 17:35:47,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:47,504 INFO L482 AbstractCegarLoop]: Abstraction has 5846 states and 15578 transitions. [2021-05-21 17:35:47,504 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:47,504 INFO L276 IsEmpty]: Start isEmpty. Operand 5846 states and 15578 transitions. [2021-05-21 17:35:47,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:47,508 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:47,508 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:47,508 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-05-21 17:35:47,508 INFO L430 AbstractCegarLoop]: === Iteration 252 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:47,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:47,508 INFO L82 PathProgramCache]: Analyzing trace with hash 531866734, now seen corresponding path program 246 times [2021-05-21 17:35:47,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:47,508 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76879332] [2021-05-21 17:35:47,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:47,776 INFO 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 17:35:47,776 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:47,776 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76879332] [2021-05-21 17:35:47,776 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76879332] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:47,776 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:47,776 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:47,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010002664] [2021-05-21 17:35:47,777 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:47,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:47,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:47,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:47,777 INFO L87 Difference]: Start difference. First operand 5846 states and 15578 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:48,603 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:48,754 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:35:48,921 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:35:49,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:49,042 INFO L93 Difference]: Finished difference Result 13365 states and 34793 transitions. [2021-05-21 17:35:49,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:49,043 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:49,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:49,053 INFO L225 Difference]: With dead ends: 13365 [2021-05-21 17:35:49,053 INFO L226 Difference]: Without dead ends: 13365 [2021-05-21 17:35:49,053 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1162.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:49,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13365 states. [2021-05-21 17:35:49,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13365 to 5926. [2021-05-21 17:35:49,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5924 states have (on average 2.6684672518568533) internal successors, (15808), 5925 states have internal predecessors, (15808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:49,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 15808 transitions. [2021-05-21 17:35:49,137 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 15808 transitions. Word has length 114 [2021-05-21 17:35:49,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:49,137 INFO L482 AbstractCegarLoop]: Abstraction has 5926 states and 15808 transitions. [2021-05-21 17:35:49,137 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:49,137 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 15808 transitions. [2021-05-21 17:35:49,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:49,141 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:49,141 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:49,141 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2021-05-21 17:35:49,141 INFO L430 AbstractCegarLoop]: === Iteration 253 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:49,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:49,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1627625940, now seen corresponding path program 247 times [2021-05-21 17:35:49,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:49,142 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029702930] [2021-05-21 17:35:49,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:49,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:35:49,411 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:49,411 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029702930] [2021-05-21 17:35:49,411 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029702930] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:49,411 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:49,411 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:49,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855152265] [2021-05-21 17:35:49,411 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:49,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:49,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:49,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:49,412 INFO L87 Difference]: Start difference. First operand 5926 states and 15808 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:50,213 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:50,374 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:35:50,539 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:35:50,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:50,660 INFO L93 Difference]: Finished difference Result 14211 states and 36653 transitions. [2021-05-21 17:35:50,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:50,661 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:50,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:50,695 INFO L225 Difference]: With dead ends: 14211 [2021-05-21 17:35:50,695 INFO L226 Difference]: Without dead ends: 14211 [2021-05-21 17:35:50,695 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1151.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:50,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14211 states. [2021-05-21 17:35:50,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14211 to 5910. [2021-05-21 17:35:50,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.6679079214624237) internal successors, (15762), 5909 states have internal predecessors, (15762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:50,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15762 transitions. [2021-05-21 17:35:50,770 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15762 transitions. Word has length 114 [2021-05-21 17:35:50,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:50,770 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15762 transitions. [2021-05-21 17:35:50,770 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:50,770 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15762 transitions. [2021-05-21 17:35:50,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:50,774 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:50,774 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:50,774 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2021-05-21 17:35:50,774 INFO L430 AbstractCegarLoop]: === Iteration 254 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:50,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:50,775 INFO L82 PathProgramCache]: Analyzing trace with hash -829762480, now seen corresponding path program 248 times [2021-05-21 17:35:50,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:50,775 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011898492] [2021-05-21 17:35:50,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:51,045 INFO 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 17:35:51,046 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:51,046 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011898492] [2021-05-21 17:35:51,046 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011898492] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:51,046 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:51,046 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:51,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481289219] [2021-05-21 17:35:51,046 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:51,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:51,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:51,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:51,047 INFO L87 Difference]: Start difference. First operand 5910 states and 15762 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:51,878 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:52,040 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:35:52,208 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:35:52,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:52,357 INFO L93 Difference]: Finished difference Result 17417 states and 44767 transitions. [2021-05-21 17:35:52,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:52,357 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:52,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:52,373 INFO L225 Difference]: With dead ends: 17417 [2021-05-21 17:35:52,373 INFO L226 Difference]: Without dead ends: 17417 [2021-05-21 17:35:52,373 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1149.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:52,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17417 states. [2021-05-21 17:35:52,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17417 to 5926. [2021-05-21 17:35:52,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5924 states have (on average 2.6684672518568533) internal successors, (15808), 5925 states have internal predecessors, (15808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:52,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 15808 transitions. [2021-05-21 17:35:52,481 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 15808 transitions. Word has length 114 [2021-05-21 17:35:52,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:52,481 INFO L482 AbstractCegarLoop]: Abstraction has 5926 states and 15808 transitions. [2021-05-21 17:35:52,481 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:52,481 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 15808 transitions. [2021-05-21 17:35:52,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:52,486 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:52,486 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] [2021-05-21 17:35:52,486 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2021-05-21 17:35:52,486 INFO L430 AbstractCegarLoop]: === Iteration 255 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:52,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:52,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1078309460, now seen corresponding path program 249 times [2021-05-21 17:35:52,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:52,487 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677243203] [2021-05-21 17:35:52,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:52,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:52,754 INFO 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 17:35:52,754 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:52,754 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677243203] [2021-05-21 17:35:52,754 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677243203] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:52,754 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:52,754 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:52,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443800238] [2021-05-21 17:35:52,755 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:52,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:52,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:52,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:52,755 INFO L87 Difference]: Start difference. First operand 5926 states and 15808 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:53,572 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:53,726 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:35:53,894 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:35:54,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:54,006 INFO L93 Difference]: Finished difference Result 14375 states and 37105 transitions. [2021-05-21 17:35:54,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:54,006 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:54,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:54,019 INFO L225 Difference]: With dead ends: 14375 [2021-05-21 17:35:54,019 INFO L226 Difference]: Without dead ends: 14375 [2021-05-21 17:35:54,019 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1159.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:54,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14375 states. [2021-05-21 17:35:54,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14375 to 5894. [2021-05-21 17:35:54,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5894 states, 5892 states have (on average 2.6673455532926003) internal successors, (15716), 5893 states have internal predecessors, (15716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:54,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5894 states to 5894 states and 15716 transitions. [2021-05-21 17:35:54,109 INFO L78 Accepts]: Start accepts. Automaton has 5894 states and 15716 transitions. Word has length 114 [2021-05-21 17:35:54,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:54,110 INFO L482 AbstractCegarLoop]: Abstraction has 5894 states and 15716 transitions. [2021-05-21 17:35:54,110 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:54,110 INFO L276 IsEmpty]: Start isEmpty. Operand 5894 states and 15716 transitions. [2021-05-21 17:35:54,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:54,114 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:54,114 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:54,114 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2021-05-21 17:35:54,114 INFO L430 AbstractCegarLoop]: === Iteration 256 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:54,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:54,114 INFO L82 PathProgramCache]: Analyzing trace with hash -2098579766, now seen corresponding path program 250 times [2021-05-21 17:35:54,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:54,114 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533527279] [2021-05-21 17:35:54,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:54,395 INFO 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 17:35:54,395 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:54,395 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533527279] [2021-05-21 17:35:54,395 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533527279] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:54,395 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:54,395 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:54,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405760970] [2021-05-21 17:35:54,396 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:54,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:54,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:54,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:54,396 INFO L87 Difference]: Start difference. First operand 5894 states and 15716 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:55,203 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:55,365 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:35:55,532 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:35:55,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:55,678 INFO L93 Difference]: Finished difference Result 17897 states and 46099 transitions. [2021-05-21 17:35:55,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:55,679 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:55,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:55,694 INFO L225 Difference]: With dead ends: 17897 [2021-05-21 17:35:55,694 INFO L226 Difference]: Without dead ends: 17897 [2021-05-21 17:35:55,694 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1166.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:55,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17897 states. [2021-05-21 17:35:55,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17897 to 5942. [2021-05-21 17:35:55,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5942 states, 5940 states have (on average 2.669023569023569) internal successors, (15854), 5941 states have internal predecessors, (15854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:55,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5942 states to 5942 states and 15854 transitions. [2021-05-21 17:35:55,800 INFO L78 Accepts]: Start accepts. Automaton has 5942 states and 15854 transitions. Word has length 114 [2021-05-21 17:35:55,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:55,800 INFO L482 AbstractCegarLoop]: Abstraction has 5942 states and 15854 transitions. [2021-05-21 17:35:55,800 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:55,800 INFO L276 IsEmpty]: Start isEmpty. Operand 5942 states and 15854 transitions. [2021-05-21 17:35:55,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:55,804 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:55,804 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:55,804 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2021-05-21 17:35:55,804 INFO L430 AbstractCegarLoop]: === Iteration 257 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:55,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:55,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1947840550, now seen corresponding path program 251 times [2021-05-21 17:35:55,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:55,805 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224776255] [2021-05-21 17:35:55,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:56,081 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 17:35:56,081 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:56,081 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224776255] [2021-05-21 17:35:56,081 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224776255] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:56,081 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:56,081 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:56,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677193212] [2021-05-21 17:35:56,081 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:56,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:56,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:56,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:56,082 INFO L87 Difference]: Start difference. First operand 5942 states and 15854 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:56,916 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:35:57,073 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:35:57,246 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:35:57,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:57,387 INFO L93 Difference]: Finished difference Result 17733 states and 45697 transitions. [2021-05-21 17:35:57,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:57,388 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:57,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:57,402 INFO L225 Difference]: With dead ends: 17733 [2021-05-21 17:35:57,402 INFO L226 Difference]: Without dead ends: 17733 [2021-05-21 17:35:57,403 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1160.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:57,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17733 states. [2021-05-21 17:35:57,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17733 to 5926. [2021-05-21 17:35:57,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5924 states have (on average 2.6684672518568533) internal successors, (15808), 5925 states have internal predecessors, (15808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:57,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 15808 transitions. [2021-05-21 17:35:57,505 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 15808 transitions. Word has length 114 [2021-05-21 17:35:57,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:57,505 INFO L482 AbstractCegarLoop]: Abstraction has 5926 states and 15808 transitions. [2021-05-21 17:35:57,505 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:57,505 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 15808 transitions. [2021-05-21 17:35:57,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:57,509 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:57,509 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:57,510 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2021-05-21 17:35:57,510 INFO L430 AbstractCegarLoop]: === Iteration 258 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:57,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:57,510 INFO L82 PathProgramCache]: Analyzing trace with hash 791023246, now seen corresponding path program 252 times [2021-05-21 17:35:57,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:57,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552956295] [2021-05-21 17:35:57,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:57,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:57,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:35:57,791 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:57,791 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552956295] [2021-05-21 17:35:57,792 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552956295] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:57,792 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:57,792 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:57,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344790490] [2021-05-21 17:35:57,792 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:57,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:57,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:57,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:57,792 INFO L87 Difference]: Start difference. First operand 5926 states and 15808 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:58,601 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:35:58,767 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:35:58,935 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:35:59,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:35:59,053 INFO L93 Difference]: Finished difference Result 14791 states and 38269 transitions. [2021-05-21 17:35:59,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:35:59,054 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:35:59,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:35:59,066 INFO L225 Difference]: With dead ends: 14791 [2021-05-21 17:35:59,066 INFO L226 Difference]: Without dead ends: 14791 [2021-05-21 17:35:59,066 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1163.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:35:59,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14791 states. [2021-05-21 17:35:59,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14791 to 5862. [2021-05-21 17:35:59,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5862 states, 5860 states have (on average 2.666211604095563) internal successors, (15624), 5861 states have internal predecessors, (15624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:59,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5862 states to 5862 states and 15624 transitions. [2021-05-21 17:35:59,157 INFO L78 Accepts]: Start accepts. Automaton has 5862 states and 15624 transitions. Word has length 114 [2021-05-21 17:35:59,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:35:59,157 INFO L482 AbstractCegarLoop]: Abstraction has 5862 states and 15624 transitions. [2021-05-21 17:35:59,157 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:35:59,157 INFO L276 IsEmpty]: Start isEmpty. Operand 5862 states and 15624 transitions. [2021-05-21 17:35:59,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:35:59,161 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:35:59,161 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:35:59,161 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-05-21 17:35:59,161 INFO L430 AbstractCegarLoop]: === Iteration 259 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:35:59,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:35:59,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1694220184, now seen corresponding path program 253 times [2021-05-21 17:35:59,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:35:59,161 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783759393] [2021-05-21 17:35:59,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:35:59,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:35:59,451 INFO 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 17:35:59,451 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:35:59,451 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783759393] [2021-05-21 17:35:59,451 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783759393] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:35:59,451 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:35:59,451 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:35:59,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481930534] [2021-05-21 17:35:59,452 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:35:59,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:35:59,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:35:59,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:35:59,452 INFO L87 Difference]: Start difference. First operand 5862 states and 15624 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:00,286 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:00,450 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:36:00,634 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:36:00,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:00,763 INFO L93 Difference]: Finished difference Result 13463 states and 34886 transitions. [2021-05-21 17:36:00,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:00,763 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:00,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:00,773 INFO L225 Difference]: With dead ends: 13463 [2021-05-21 17:36:00,773 INFO L226 Difference]: Without dead ends: 13463 [2021-05-21 17:36:00,774 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1181.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:00,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13463 states. [2021-05-21 17:36:00,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13463 to 5926. [2021-05-21 17:36:00,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5926 states, 5924 states have (on average 2.6684672518568533) internal successors, (15808), 5925 states have internal predecessors, (15808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:00,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5926 states to 5926 states and 15808 transitions. [2021-05-21 17:36:00,858 INFO L78 Accepts]: Start accepts. Automaton has 5926 states and 15808 transitions. Word has length 114 [2021-05-21 17:36:00,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:00,858 INFO L482 AbstractCegarLoop]: Abstraction has 5926 states and 15808 transitions. [2021-05-21 17:36:00,858 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:00,858 INFO L276 IsEmpty]: Start isEmpty. Operand 5926 states and 15808 transitions. [2021-05-21 17:36:00,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:00,862 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:00,862 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:00,862 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2021-05-21 17:36:00,862 INFO L430 AbstractCegarLoop]: === Iteration 260 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:00,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:00,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1942767164, now seen corresponding path program 254 times [2021-05-21 17:36:00,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:00,862 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991225747] [2021-05-21 17:36:00,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:01,148 INFO 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 17:36:01,148 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:01,148 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991225747] [2021-05-21 17:36:01,148 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991225747] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:01,149 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:01,149 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:01,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449375625] [2021-05-21 17:36:01,149 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:01,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:01,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:01,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:01,149 INFO L87 Difference]: Start difference. First operand 5926 states and 15808 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:01,978 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:02,132 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:36:02,304 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:36:02,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:02,425 INFO L93 Difference]: Finished difference Result 13299 states and 34484 transitions. [2021-05-21 17:36:02,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:02,426 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:02,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:02,436 INFO L225 Difference]: With dead ends: 13299 [2021-05-21 17:36:02,437 INFO L226 Difference]: Without dead ends: 13299 [2021-05-21 17:36:02,437 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1164.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:02,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13299 states. [2021-05-21 17:36:02,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13299 to 5910. [2021-05-21 17:36:02,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5908 states have (on average 2.6679079214624237) internal successors, (15762), 5909 states have internal predecessors, (15762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:02,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 15762 transitions. [2021-05-21 17:36:02,521 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 15762 transitions. Word has length 114 [2021-05-21 17:36:02,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:02,521 INFO L482 AbstractCegarLoop]: Abstraction has 5910 states and 15762 transitions. [2021-05-21 17:36:02,521 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:02,521 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 15762 transitions. [2021-05-21 17:36:02,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:02,527 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:02,527 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:02,527 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2021-05-21 17:36:02,527 INFO L430 AbstractCegarLoop]: === Iteration 261 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:02,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:02,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1195382828, now seen corresponding path program 255 times [2021-05-21 17:36:02,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:02,527 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692939618] [2021-05-21 17:36:02,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:02,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:36:02,843 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:02,843 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692939618] [2021-05-21 17:36:02,843 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692939618] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:02,843 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:02,843 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:02,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872059433] [2021-05-21 17:36:02,843 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:02,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:02,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:02,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:02,844 INFO L87 Difference]: Start difference. First operand 5910 states and 15762 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:03,629 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:36:03,794 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:36:03,971 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:36:04,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:04,092 INFO L93 Difference]: Finished difference Result 13587 states and 35312 transitions. [2021-05-21 17:36:04,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:04,092 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:04,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:04,105 INFO L225 Difference]: With dead ends: 13587 [2021-05-21 17:36:04,105 INFO L226 Difference]: Without dead ends: 13587 [2021-05-21 17:36:04,105 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1182.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:04,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13587 states. [2021-05-21 17:36:04,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13587 to 5878. [2021-05-21 17:36:04,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5876 states have (on average 2.666780122532335) internal successors, (15670), 5877 states have internal predecessors, (15670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:04,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 15670 transitions. [2021-05-21 17:36:04,193 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 15670 transitions. Word has length 114 [2021-05-21 17:36:04,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:04,193 INFO L482 AbstractCegarLoop]: Abstraction has 5878 states and 15670 transitions. [2021-05-21 17:36:04,193 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:04,193 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 15670 transitions. [2021-05-21 17:36:04,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:04,197 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:04,197 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:04,197 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2021-05-21 17:36:04,197 INFO L430 AbstractCegarLoop]: === Iteration 262 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:04,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:04,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1391401330, now seen corresponding path program 256 times [2021-05-21 17:36:04,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:04,197 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055904728] [2021-05-21 17:36:04,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:04,493 INFO 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 17:36:04,493 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:04,493 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055904728] [2021-05-21 17:36:04,493 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055904728] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:04,493 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:04,493 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:04,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566444158] [2021-05-21 17:36:04,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:04,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:04,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:04,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:04,494 INFO L87 Difference]: Start difference. First operand 5878 states and 15670 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:05,277 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:36:05,454 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:36:05,625 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:36:05,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:05,730 INFO L93 Difference]: Finished difference Result 10229 states and 26720 transitions. [2021-05-21 17:36:05,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:05,730 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:05,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:05,738 INFO L225 Difference]: With dead ends: 10229 [2021-05-21 17:36:05,738 INFO L226 Difference]: Without dead ends: 10229 [2021-05-21 17:36:05,738 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1164.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:05,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10229 states. [2021-05-21 17:36:05,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10229 to 5806. [2021-05-21 17:36:05,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5806 states, 5804 states have (on average 2.662646450723639) internal successors, (15454), 5805 states have internal predecessors, (15454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:05,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5806 states to 5806 states and 15454 transitions. [2021-05-21 17:36:05,809 INFO L78 Accepts]: Start accepts. Automaton has 5806 states and 15454 transitions. Word has length 114 [2021-05-21 17:36:05,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:05,809 INFO L482 AbstractCegarLoop]: Abstraction has 5806 states and 15454 transitions. [2021-05-21 17:36:05,809 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:05,809 INFO L276 IsEmpty]: Start isEmpty. Operand 5806 states and 15454 transitions. [2021-05-21 17:36:05,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:05,813 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:05,813 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:05,813 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2021-05-21 17:36:05,813 INFO L430 AbstractCegarLoop]: === Iteration 263 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:05,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:05,814 INFO L82 PathProgramCache]: Analyzing trace with hash -384338392, now seen corresponding path program 257 times [2021-05-21 17:36:05,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:05,814 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312373084] [2021-05-21 17:36:05,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:06,095 INFO 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 17:36:06,096 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:06,096 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312373084] [2021-05-21 17:36:06,096 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312373084] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:06,096 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:06,096 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:06,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089874105] [2021-05-21 17:36:06,096 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:06,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:06,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:06,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:06,097 INFO L87 Difference]: Start difference. First operand 5806 states and 15454 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:06,882 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:36:07,042 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:36:07,217 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:36:07,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:07,345 INFO L93 Difference]: Finished difference Result 13672 states and 35556 transitions. [2021-05-21 17:36:07,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:07,345 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:07,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:07,356 INFO L225 Difference]: With dead ends: 13672 [2021-05-21 17:36:07,356 INFO L226 Difference]: Without dead ends: 13672 [2021-05-21 17:36:07,356 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1150.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:07,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13672 states. [2021-05-21 17:36:07,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13672 to 5870. [2021-05-21 17:36:07,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5870 states, 5868 states have (on average 2.664962508520791) internal successors, (15638), 5869 states have internal predecessors, (15638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:07,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5870 states to 5870 states and 15638 transitions. [2021-05-21 17:36:07,453 INFO L78 Accepts]: Start accepts. Automaton has 5870 states and 15638 transitions. Word has length 114 [2021-05-21 17:36:07,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:07,453 INFO L482 AbstractCegarLoop]: Abstraction has 5870 states and 15638 transitions. [2021-05-21 17:36:07,453 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:07,453 INFO L276 IsEmpty]: Start isEmpty. Operand 5870 states and 15638 transitions. [2021-05-21 17:36:07,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:07,457 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:07,457 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:07,457 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2021-05-21 17:36:07,457 INFO L430 AbstractCegarLoop]: === Iteration 264 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:07,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:07,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1528898344, now seen corresponding path program 258 times [2021-05-21 17:36:07,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:07,458 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367179148] [2021-05-21 17:36:07,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:07,768 INFO 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 17:36:07,768 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:07,768 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367179148] [2021-05-21 17:36:07,768 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367179148] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:07,768 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:07,768 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:07,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108710478] [2021-05-21 17:36:07,769 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:07,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:07,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:07,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:07,769 INFO L87 Difference]: Start difference. First operand 5870 states and 15638 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:08,592 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:08,741 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:36:08,914 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:36:09,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:09,051 INFO L93 Difference]: Finished difference Result 16296 states and 42279 transitions. [2021-05-21 17:36:09,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:09,051 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:09,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:09,064 INFO L225 Difference]: With dead ends: 16296 [2021-05-21 17:36:09,064 INFO L226 Difference]: Without dead ends: 16296 [2021-05-21 17:36:09,065 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1182.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:09,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16296 states. [2021-05-21 17:36:09,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16296 to 5886. [2021-05-21 17:36:09,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5886 states, 5884 states have (on average 2.665533650577838) internal successors, (15684), 5885 states have internal predecessors, (15684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:09,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5886 states to 5886 states and 15684 transitions. [2021-05-21 17:36:09,163 INFO L78 Accepts]: Start accepts. Automaton has 5886 states and 15684 transitions. Word has length 114 [2021-05-21 17:36:09,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:09,163 INFO L482 AbstractCegarLoop]: Abstraction has 5886 states and 15684 transitions. [2021-05-21 17:36:09,164 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:09,164 INFO L276 IsEmpty]: Start isEmpty. Operand 5886 states and 15684 transitions. [2021-05-21 17:36:09,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:09,167 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:09,168 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] [2021-05-21 17:36:09,168 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2021-05-21 17:36:09,168 INFO L430 AbstractCegarLoop]: === Iteration 265 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:09,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:09,168 INFO L82 PathProgramCache]: Analyzing trace with hash -630594330, now seen corresponding path program 259 times [2021-05-21 17:36:09,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:09,168 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984271382] [2021-05-21 17:36:09,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:09,451 INFO 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 17:36:09,452 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:09,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984271382] [2021-05-21 17:36:09,452 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984271382] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:09,452 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:09,452 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:09,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865417743] [2021-05-21 17:36:09,452 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:09,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:09,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:09,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:09,452 INFO L87 Difference]: Start difference. First operand 5886 states and 15684 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:10,276 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:10,450 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:36:10,619 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:36:10,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:10,750 INFO L93 Difference]: Finished difference Result 14576 states and 37567 transitions. [2021-05-21 17:36:10,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:10,750 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:10,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:10,761 INFO L225 Difference]: With dead ends: 14576 [2021-05-21 17:36:10,761 INFO L226 Difference]: Without dead ends: 14576 [2021-05-21 17:36:10,762 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1175.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:10,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14576 states. [2021-05-21 17:36:10,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14576 to 5838. [2021-05-21 17:36:10,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5838 states, 5836 states have (on average 2.6638108293351612) internal successors, (15546), 5837 states have internal predecessors, (15546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:10,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5838 states to 5838 states and 15546 transitions. [2021-05-21 17:36:10,851 INFO L78 Accepts]: Start accepts. Automaton has 5838 states and 15546 transitions. Word has length 114 [2021-05-21 17:36:10,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:10,851 INFO L482 AbstractCegarLoop]: Abstraction has 5838 states and 15546 transitions. [2021-05-21 17:36:10,851 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:10,851 INFO L276 IsEmpty]: Start isEmpty. Operand 5838 states and 15546 transitions. [2021-05-21 17:36:10,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:10,855 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:10,855 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:10,855 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2021-05-21 17:36:10,855 INFO L430 AbstractCegarLoop]: === Iteration 266 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:10,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:10,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1850644968, now seen corresponding path program 260 times [2021-05-21 17:36:10,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:10,855 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464248681] [2021-05-21 17:36:10,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:11,122 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 17:36:11,122 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:11,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464248681] [2021-05-21 17:36:11,122 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464248681] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:11,122 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:11,122 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:11,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549736650] [2021-05-21 17:36:11,122 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:11,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:11,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:11,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:11,123 INFO L87 Difference]: Start difference. First operand 5838 states and 15546 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:11,918 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:12,069 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:36:12,237 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:36:12,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:12,360 INFO L93 Difference]: Finished difference Result 13776 states and 35714 transitions. [2021-05-21 17:36:12,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:12,360 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:12,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:12,371 INFO L225 Difference]: With dead ends: 13776 [2021-05-21 17:36:12,371 INFO L226 Difference]: Without dead ends: 13776 [2021-05-21 17:36:12,372 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1143.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:12,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13776 states. [2021-05-21 17:36:12,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13776 to 5870. [2021-05-21 17:36:12,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5870 states, 5868 states have (on average 2.664962508520791) internal successors, (15638), 5869 states have internal predecessors, (15638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:12,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5870 states to 5870 states and 15638 transitions. [2021-05-21 17:36:12,459 INFO L78 Accepts]: Start accepts. Automaton has 5870 states and 15638 transitions. Word has length 114 [2021-05-21 17:36:12,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:12,459 INFO L482 AbstractCegarLoop]: Abstraction has 5870 states and 15638 transitions. [2021-05-21 17:36:12,459 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:12,459 INFO L276 IsEmpty]: Start isEmpty. Operand 5870 states and 15638 transitions. [2021-05-21 17:36:12,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:12,463 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:12,463 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:12,463 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2021-05-21 17:36:12,463 INFO L430 AbstractCegarLoop]: === Iteration 267 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:12,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:12,463 INFO L82 PathProgramCache]: Analyzing trace with hash -308847706, now seen corresponding path program 261 times [2021-05-21 17:36:12,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:12,463 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739335353] [2021-05-21 17:36:12,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:12,760 INFO 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 17:36:12,761 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:12,761 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739335353] [2021-05-21 17:36:12,761 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739335353] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:12,761 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:12,761 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:12,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715411204] [2021-05-21 17:36:12,761 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:12,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:12,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:12,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:12,761 INFO L87 Difference]: Start difference. First operand 5870 states and 15638 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:13,557 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:13,718 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:36:13,882 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:36:14,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:14,004 INFO L93 Difference]: Finished difference Result 14622 states and 37574 transitions. [2021-05-21 17:36:14,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:14,004 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:14,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:14,015 INFO L225 Difference]: With dead ends: 14622 [2021-05-21 17:36:14,016 INFO L226 Difference]: Without dead ends: 14622 [2021-05-21 17:36:14,016 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1180.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:14,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14622 states. [2021-05-21 17:36:14,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14622 to 5854. [2021-05-21 17:36:14,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5854 states, 5852 states have (on average 2.664388243335612) internal successors, (15592), 5853 states have internal predecessors, (15592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:14,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5854 states to 5854 states and 15592 transitions. [2021-05-21 17:36:14,111 INFO L78 Accepts]: Start accepts. Automaton has 5854 states and 15592 transitions. Word has length 114 [2021-05-21 17:36:14,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:14,111 INFO L482 AbstractCegarLoop]: Abstraction has 5854 states and 15592 transitions. [2021-05-21 17:36:14,111 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:14,111 INFO L276 IsEmpty]: Start isEmpty. Operand 5854 states and 15592 transitions. [2021-05-21 17:36:14,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:14,115 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:14,115 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:14,115 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2021-05-21 17:36:14,116 INFO L430 AbstractCegarLoop]: === Iteration 268 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:14,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:14,116 INFO L82 PathProgramCache]: Analyzing trace with hash 489015754, now seen corresponding path program 262 times [2021-05-21 17:36:14,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:14,116 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238182006] [2021-05-21 17:36:14,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:14,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:36:14,389 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:14,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238182006] [2021-05-21 17:36:14,389 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238182006] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:14,389 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:14,389 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:14,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8236254] [2021-05-21 17:36:14,389 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:14,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:14,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:14,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:14,390 INFO L87 Difference]: Start difference. First operand 5854 states and 15592 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:15,202 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:15,358 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:36:15,523 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:36:15,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:15,639 INFO L93 Difference]: Finished difference Result 13922 states and 35945 transitions. [2021-05-21 17:36:15,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:15,639 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:15,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:15,650 INFO L225 Difference]: With dead ends: 13922 [2021-05-21 17:36:15,650 INFO L226 Difference]: Without dead ends: 13922 [2021-05-21 17:36:15,650 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1171.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:15,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13922 states. [2021-05-21 17:36:15,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13922 to 5870. [2021-05-21 17:36:15,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5870 states, 5868 states have (on average 2.664962508520791) internal successors, (15638), 5869 states have internal predecessors, (15638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:15,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5870 states to 5870 states and 15638 transitions. [2021-05-21 17:36:15,739 INFO L78 Accepts]: Start accepts. Automaton has 5870 states and 15638 transitions. Word has length 114 [2021-05-21 17:36:15,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:15,739 INFO L482 AbstractCegarLoop]: Abstraction has 5870 states and 15638 transitions. [2021-05-21 17:36:15,739 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:15,739 INFO L276 IsEmpty]: Start isEmpty. Operand 5870 states and 15638 transitions. [2021-05-21 17:36:15,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:15,743 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:15,743 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:15,743 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2021-05-21 17:36:15,743 INFO L430 AbstractCegarLoop]: === Iteration 269 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:15,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:15,744 INFO L82 PathProgramCache]: Analyzing trace with hash 240468774, now seen corresponding path program 263 times [2021-05-21 17:36:15,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:15,744 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285626497] [2021-05-21 17:36:15,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:16,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:36:16,009 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:16,009 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285626497] [2021-05-21 17:36:16,009 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285626497] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:16,009 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:16,009 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:16,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841184825] [2021-05-21 17:36:16,009 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:16,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:16,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:16,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:16,010 INFO L87 Difference]: Start difference. First operand 5870 states and 15638 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:16,805 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:16,955 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:36:17,122 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:36:17,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:17,235 INFO L93 Difference]: Finished difference Result 11180 states and 29033 transitions. [2021-05-21 17:36:17,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:17,235 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:17,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:17,245 INFO L225 Difference]: With dead ends: 11180 [2021-05-21 17:36:17,245 INFO L226 Difference]: Without dead ends: 11180 [2021-05-21 17:36:17,245 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1139.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:17,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11180 states. [2021-05-21 17:36:17,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11180 to 5806. [2021-05-21 17:36:17,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5806 states, 5804 states have (on average 2.662646450723639) internal successors, (15454), 5805 states have internal predecessors, (15454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:17,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5806 states to 5806 states and 15454 transitions. [2021-05-21 17:36:17,322 INFO L78 Accepts]: Start accepts. Automaton has 5806 states and 15454 transitions. Word has length 114 [2021-05-21 17:36:17,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:17,322 INFO L482 AbstractCegarLoop]: Abstraction has 5806 states and 15454 transitions. [2021-05-21 17:36:17,322 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:17,322 INFO L276 IsEmpty]: Start isEmpty. Operand 5806 states and 15454 transitions. [2021-05-21 17:36:17,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:17,326 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:17,326 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:17,326 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2021-05-21 17:36:17,326 INFO L430 AbstractCegarLoop]: === Iteration 270 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:17,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:17,326 INFO L82 PathProgramCache]: Analyzing trace with hash -479016630, now seen corresponding path program 264 times [2021-05-21 17:36:17,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:17,326 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908306285] [2021-05-21 17:36:17,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:17,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:17,647 INFO 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 17:36:17,647 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:17,647 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908306285] [2021-05-21 17:36:17,647 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908306285] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:17,647 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:17,647 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:17,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279003922] [2021-05-21 17:36:17,647 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:17,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:17,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:17,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:17,648 INFO L87 Difference]: Start difference. First operand 5806 states and 15454 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:18,334 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:36:18,467 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:36:18,639 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:36:18,814 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:36:18,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:18,948 INFO L93 Difference]: Finished difference Result 12372 states and 32425 transitions. [2021-05-21 17:36:18,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:18,948 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:18,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:18,958 INFO L225 Difference]: With dead ends: 12372 [2021-05-21 17:36:18,958 INFO L226 Difference]: Without dead ends: 12372 [2021-05-21 17:36:18,959 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1199.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:18,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12372 states. [2021-05-21 17:36:19,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12372 to 5838. [2021-05-21 17:36:19,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5838 states, 5836 states have (on average 2.6638108293351612) internal successors, (15546), 5837 states have internal predecessors, (15546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:19,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5838 states to 5838 states and 15546 transitions. [2021-05-21 17:36:19,044 INFO L78 Accepts]: Start accepts. Automaton has 5838 states and 15546 transitions. Word has length 114 [2021-05-21 17:36:19,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:19,044 INFO L482 AbstractCegarLoop]: Abstraction has 5838 states and 15546 transitions. [2021-05-21 17:36:19,044 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:19,044 INFO L276 IsEmpty]: Start isEmpty. Operand 5838 states and 15546 transitions. [2021-05-21 17:36:19,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:19,048 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:19,048 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:19,048 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2021-05-21 17:36:19,048 INFO L430 AbstractCegarLoop]: === Iteration 271 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:19,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:19,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1434220106, now seen corresponding path program 265 times [2021-05-21 17:36:19,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:19,048 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482347508] [2021-05-21 17:36:19,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:19,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:19,345 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 17:36:19,345 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:19,345 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482347508] [2021-05-21 17:36:19,345 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482347508] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:19,345 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:19,345 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:19,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282688520] [2021-05-21 17:36:19,345 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:19,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:19,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:19,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:19,346 INFO L87 Difference]: Start difference. First operand 5838 states and 15546 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:20,199 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:20,353 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:36:20,528 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:36:20,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:20,661 INFO L93 Difference]: Finished difference Result 12448 states and 32561 transitions. [2021-05-21 17:36:20,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:20,661 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:20,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:20,672 INFO L225 Difference]: With dead ends: 12448 [2021-05-21 17:36:20,672 INFO L226 Difference]: Without dead ends: 12448 [2021-05-21 17:36:20,672 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1196.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:20,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12448 states. [2021-05-21 17:36:20,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12448 to 5854. [2021-05-21 17:36:20,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5854 states, 5852 states have (on average 2.664388243335612) internal successors, (15592), 5853 states have internal predecessors, (15592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:20,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5854 states to 5854 states and 15592 transitions. [2021-05-21 17:36:20,758 INFO L78 Accepts]: Start accepts. Automaton has 5854 states and 15592 transitions. Word has length 114 [2021-05-21 17:36:20,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:20,758 INFO L482 AbstractCegarLoop]: Abstraction has 5854 states and 15592 transitions. [2021-05-21 17:36:20,758 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:20,758 INFO L276 IsEmpty]: Start isEmpty. Operand 5854 states and 15592 transitions. [2021-05-21 17:36:20,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:20,762 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:20,762 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] [2021-05-21 17:36:20,762 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2021-05-21 17:36:20,762 INFO L430 AbstractCegarLoop]: === Iteration 272 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:20,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:20,762 INFO L82 PathProgramCache]: Analyzing trace with hash -725272568, now seen corresponding path program 266 times [2021-05-21 17:36:20,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:20,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262554118] [2021-05-21 17:36:20,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:20,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:21,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:36:21,060 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:21,060 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262554118] [2021-05-21 17:36:21,060 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262554118] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:21,060 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:21,060 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:21,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620558745] [2021-05-21 17:36:21,061 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:21,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:21,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:21,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:21,061 INFO L87 Difference]: Start difference. First operand 5854 states and 15592 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:21,869 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:22,033 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:36:22,203 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:36:22,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:22,320 INFO L93 Difference]: Finished difference Result 11832 states and 30587 transitions. [2021-05-21 17:36:22,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:22,320 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:22,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:22,330 INFO L225 Difference]: With dead ends: 11832 [2021-05-21 17:36:22,330 INFO L226 Difference]: Without dead ends: 11832 [2021-05-21 17:36:22,330 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1188.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:22,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11832 states. [2021-05-21 17:36:22,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11832 to 5806. [2021-05-21 17:36:22,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5806 states, 5804 states have (on average 2.662646450723639) internal successors, (15454), 5805 states have internal predecessors, (15454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:22,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5806 states to 5806 states and 15454 transitions. [2021-05-21 17:36:22,413 INFO L78 Accepts]: Start accepts. Automaton has 5806 states and 15454 transitions. Word has length 114 [2021-05-21 17:36:22,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:22,413 INFO L482 AbstractCegarLoop]: Abstraction has 5806 states and 15454 transitions. [2021-05-21 17:36:22,413 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:22,413 INFO L276 IsEmpty]: Start isEmpty. Operand 5806 states and 15454 transitions. [2021-05-21 17:36:22,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:22,417 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:22,417 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:22,417 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2021-05-21 17:36:22,417 INFO L430 AbstractCegarLoop]: === Iteration 273 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:22,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:22,418 INFO L82 PathProgramCache]: Analyzing trace with hash -857833944, now seen corresponding path program 267 times [2021-05-21 17:36:22,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:22,418 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419331992] [2021-05-21 17:36:22,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:22,746 INFO 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 17:36:22,747 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:22,747 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419331992] [2021-05-21 17:36:22,747 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419331992] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:22,747 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:22,747 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:22,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66641478] [2021-05-21 17:36:22,747 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:22,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:22,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:22,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:22,748 INFO L87 Difference]: Start difference. First operand 5806 states and 15454 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:23,542 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:36:23,712 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:36:23,886 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:36:24,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:24,001 INFO L93 Difference]: Finished difference Result 8592 states and 22340 transitions. [2021-05-21 17:36:24,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:24,001 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:24,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:24,008 INFO L225 Difference]: With dead ends: 8592 [2021-05-21 17:36:24,008 INFO L226 Difference]: Without dead ends: 8592 [2021-05-21 17:36:24,008 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1174.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:24,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8592 states. [2021-05-21 17:36:24,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8592 to 5682. [2021-05-21 17:36:24,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5682 states, 5680 states have (on average 2.6580985915492956) internal successors, (15098), 5681 states have internal predecessors, (15098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:24,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5682 states to 5682 states and 15098 transitions. [2021-05-21 17:36:24,075 INFO L78 Accepts]: Start accepts. Automaton has 5682 states and 15098 transitions. Word has length 114 [2021-05-21 17:36:24,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:24,075 INFO L482 AbstractCegarLoop]: Abstraction has 5682 states and 15098 transitions. [2021-05-21 17:36:24,076 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:24,076 INFO L276 IsEmpty]: Start isEmpty. Operand 5682 states and 15098 transitions. [2021-05-21 17:36:24,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:24,080 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:24,080 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:24,080 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2021-05-21 17:36:24,080 INFO L430 AbstractCegarLoop]: === Iteration 274 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:24,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:24,080 INFO L82 PathProgramCache]: Analyzing trace with hash 453682248, now seen corresponding path program 268 times [2021-05-21 17:36:24,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:24,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228552787] [2021-05-21 17:36:24,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:24,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:36:24,368 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:24,368 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228552787] [2021-05-21 17:36:24,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228552787] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:24,369 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:24,369 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:24,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798828793] [2021-05-21 17:36:24,369 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:24,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:24,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:24,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:24,369 INFO L87 Difference]: Start difference. First operand 5682 states and 15098 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:25,210 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:36:25,376 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:36:25,549 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:36:25,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:25,680 INFO L93 Difference]: Finished difference Result 13092 states and 33832 transitions. [2021-05-21 17:36:25,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:25,681 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:25,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:25,691 INFO L225 Difference]: With dead ends: 13092 [2021-05-21 17:36:25,691 INFO L226 Difference]: Without dead ends: 13092 [2021-05-21 17:36:25,691 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1176.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:25,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13092 states. [2021-05-21 17:36:25,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13092 to 5810. [2021-05-21 17:36:25,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:25,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-05-21 17:36:25,774 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-05-21 17:36:25,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:25,775 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-05-21 17:36:25,775 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:25,775 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-05-21 17:36:25,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:25,778 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:25,778 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] [2021-05-21 17:36:25,779 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2021-05-21 17:36:25,779 INFO L430 AbstractCegarLoop]: === Iteration 275 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:25,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:25,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1928048312, now seen corresponding path program 269 times [2021-05-21 17:36:25,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:25,779 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701155904] [2021-05-21 17:36:25,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:26,058 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 17:36:26,058 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:26,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701155904] [2021-05-21 17:36:26,058 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701155904] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:26,058 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:26,058 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:26,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042202025] [2021-05-21 17:36:26,059 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:26,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:26,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:26,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:26,059 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:26,893 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:27,045 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:36:27,223 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:36:27,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:27,360 INFO L93 Difference]: Finished difference Result 15716 states and 40555 transitions. [2021-05-21 17:36:27,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:27,360 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:27,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:27,373 INFO L225 Difference]: With dead ends: 15716 [2021-05-21 17:36:27,373 INFO L226 Difference]: Without dead ends: 15716 [2021-05-21 17:36:27,373 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1156.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:27,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15716 states. [2021-05-21 17:36:27,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15716 to 5826. [2021-05-21 17:36:27,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5824 states have (on average 2.6634615384615383) internal successors, (15512), 5825 states have internal predecessors, (15512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:27,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 15512 transitions. [2021-05-21 17:36:27,468 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 15512 transitions. Word has length 114 [2021-05-21 17:36:27,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:27,468 INFO L482 AbstractCegarLoop]: Abstraction has 5826 states and 15512 transitions. [2021-05-21 17:36:27,468 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:27,468 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 15512 transitions. [2021-05-21 17:36:27,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:27,472 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:27,472 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:27,472 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2021-05-21 17:36:27,472 INFO L430 AbstractCegarLoop]: === Iteration 276 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:27,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:27,472 INFO L82 PathProgramCache]: Analyzing trace with hash 207426310, now seen corresponding path program 270 times [2021-05-21 17:36:27,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:27,472 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493731894] [2021-05-21 17:36:27,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:27,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:27,784 INFO 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 17:36:27,784 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:27,784 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493731894] [2021-05-21 17:36:27,784 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493731894] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:27,784 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:27,784 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:27,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424590525] [2021-05-21 17:36:27,784 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:27,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:27,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:27,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:27,785 INFO L87 Difference]: Start difference. First operand 5826 states and 15512 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:28,629 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:28,794 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:36:28,967 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:36:29,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:29,100 INFO L93 Difference]: Finished difference Result 13996 states and 35843 transitions. [2021-05-21 17:36:29,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:29,101 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:29,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:29,112 INFO L225 Difference]: With dead ends: 13996 [2021-05-21 17:36:29,112 INFO L226 Difference]: Without dead ends: 13996 [2021-05-21 17:36:29,112 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1175.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:29,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13996 states. [2021-05-21 17:36:29,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13996 to 5778. [2021-05-21 17:36:29,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5778 states, 5776 states have (on average 2.6617036011080333) internal successors, (15374), 5777 states have internal predecessors, (15374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:29,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5778 states to 5778 states and 15374 transitions. [2021-05-21 17:36:29,197 INFO L78 Accepts]: Start accepts. Automaton has 5778 states and 15374 transitions. Word has length 114 [2021-05-21 17:36:29,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:29,197 INFO L482 AbstractCegarLoop]: Abstraction has 5778 states and 15374 transitions. [2021-05-21 17:36:29,197 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:29,197 INFO L276 IsEmpty]: Start isEmpty. Operand 5778 states and 15374 transitions. [2021-05-21 17:36:29,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:29,201 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:29,201 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:29,201 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2021-05-21 17:36:29,201 INFO L430 AbstractCegarLoop]: === Iteration 277 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:29,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:29,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1606301688, now seen corresponding path program 271 times [2021-05-21 17:36:29,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:29,202 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116219743] [2021-05-21 17:36:29,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:29,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:36:29,472 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:29,472 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116219743] [2021-05-21 17:36:29,472 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116219743] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:29,472 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:29,472 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:29,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419716140] [2021-05-21 17:36:29,472 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:29,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:29,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:29,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:29,473 INFO L87 Difference]: Start difference. First operand 5778 states and 15374 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:30,281 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:30,429 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:36:30,596 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:36:30,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:30,727 INFO L93 Difference]: Finished difference Result 17072 states and 43772 transitions. [2021-05-21 17:36:30,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:30,727 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:30,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:30,740 INFO L225 Difference]: With dead ends: 17072 [2021-05-21 17:36:30,741 INFO L226 Difference]: Without dead ends: 17072 [2021-05-21 17:36:30,741 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1131.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:30,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17072 states. [2021-05-21 17:36:30,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17072 to 5810. [2021-05-21 17:36:30,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:30,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-05-21 17:36:30,845 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-05-21 17:36:30,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:30,845 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-05-21 17:36:30,845 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:30,845 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-05-21 17:36:30,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:30,849 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:30,849 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:30,849 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2021-05-21 17:36:30,849 INFO L430 AbstractCegarLoop]: === Iteration 278 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:30,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:30,850 INFO L82 PathProgramCache]: Analyzing trace with hash 529172934, now seen corresponding path program 272 times [2021-05-21 17:36:30,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:30,850 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812134511] [2021-05-21 17:36:30,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:31,118 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 17:36:31,118 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:31,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812134511] [2021-05-21 17:36:31,118 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812134511] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:31,118 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:31,118 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:31,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574663967] [2021-05-21 17:36:31,118 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:31,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:31,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:31,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:31,119 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:31,913 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:32,073 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:36:32,238 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:36:32,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:32,372 INFO L93 Difference]: Finished difference Result 17918 states and 45632 transitions. [2021-05-21 17:36:32,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:32,372 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:32,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:32,387 INFO L225 Difference]: With dead ends: 17918 [2021-05-21 17:36:32,387 INFO L226 Difference]: Without dead ends: 17918 [2021-05-21 17:36:32,387 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1143.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:32,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17918 states. [2021-05-21 17:36:32,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17918 to 5794. [2021-05-21 17:36:32,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5794 states, 5792 states have (on average 2.662292817679558) internal successors, (15420), 5793 states have internal predecessors, (15420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:32,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5794 states to 5794 states and 15420 transitions. [2021-05-21 17:36:32,506 INFO L78 Accepts]: Start accepts. Automaton has 5794 states and 15420 transitions. Word has length 114 [2021-05-21 17:36:32,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:32,506 INFO L482 AbstractCegarLoop]: Abstraction has 5794 states and 15420 transitions. [2021-05-21 17:36:32,506 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:32,506 INFO L276 IsEmpty]: Start isEmpty. Operand 5794 states and 15420 transitions. [2021-05-21 17:36:32,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:32,510 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:32,510 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:32,510 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2021-05-21 17:36:32,510 INFO L430 AbstractCegarLoop]: === Iteration 279 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:32,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:32,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1327036394, now seen corresponding path program 273 times [2021-05-21 17:36:32,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:32,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199175640] [2021-05-21 17:36:32,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:32,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:32,778 INFO 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 17:36:32,778 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:32,778 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199175640] [2021-05-21 17:36:32,778 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199175640] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:32,778 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:32,779 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:32,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390637088] [2021-05-21 17:36:32,779 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:32,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:32,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:32,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:32,779 INFO L87 Difference]: Start difference. First operand 5794 states and 15420 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:33,602 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:33,767 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:36:33,939 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:36:34,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:34,083 INFO L93 Difference]: Finished difference Result 17218 states and 44003 transitions. [2021-05-21 17:36:34,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:34,083 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:34,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:34,097 INFO L225 Difference]: With dead ends: 17218 [2021-05-21 17:36:34,097 INFO L226 Difference]: Without dead ends: 17218 [2021-05-21 17:36:34,097 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1150.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:34,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17218 states. [2021-05-21 17:36:34,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17218 to 5810. [2021-05-21 17:36:34,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:34,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-05-21 17:36:34,200 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-05-21 17:36:34,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:34,200 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-05-21 17:36:34,200 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:34,200 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-05-21 17:36:34,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:34,204 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:34,204 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:34,204 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2021-05-21 17:36:34,204 INFO L430 AbstractCegarLoop]: === Iteration 280 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:34,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:34,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1078489414, now seen corresponding path program 274 times [2021-05-21 17:36:34,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:34,204 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813033685] [2021-05-21 17:36:34,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:34,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:34,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:36:34,470 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:34,470 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813033685] [2021-05-21 17:36:34,470 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813033685] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:34,470 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:34,470 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:34,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146044611] [2021-05-21 17:36:34,470 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:34,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:34,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:34,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:34,470 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:35,292 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:35,444 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:36:35,613 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:36:35,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:35,722 INFO L93 Difference]: Finished difference Result 14176 states and 36341 transitions. [2021-05-21 17:36:35,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:35,723 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:35,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:35,734 INFO L225 Difference]: With dead ends: 14176 [2021-05-21 17:36:35,734 INFO L226 Difference]: Without dead ends: 14176 [2021-05-21 17:36:35,734 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1159.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:35,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14176 states. [2021-05-21 17:36:35,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14176 to 5746. [2021-05-21 17:36:35,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5746 states, 5744 states have (on average 2.660515320334262) internal successors, (15282), 5745 states have internal predecessors, (15282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:35,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5746 states to 5746 states and 15282 transitions. [2021-05-21 17:36:35,821 INFO L78 Accepts]: Start accepts. Automaton has 5746 states and 15282 transitions. Word has length 114 [2021-05-21 17:36:35,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:35,821 INFO L482 AbstractCegarLoop]: Abstraction has 5746 states and 15282 transitions. [2021-05-21 17:36:35,822 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:35,822 INFO L276 IsEmpty]: Start isEmpty. Operand 5746 states and 15282 transitions. [2021-05-21 17:36:35,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:35,825 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:35,825 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:35,825 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2021-05-21 17:36:35,826 INFO L430 AbstractCegarLoop]: === Iteration 281 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:35,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:35,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1741503862, now seen corresponding path program 275 times [2021-05-21 17:36:35,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:35,826 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307628042] [2021-05-21 17:36:35,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:36,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:36:36,093 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:36,093 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307628042] [2021-05-21 17:36:36,093 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307628042] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:36,093 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:36,093 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:36,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364376679] [2021-05-21 17:36:36,093 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:36,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:36,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:36,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:36,094 INFO L87 Difference]: Start difference. First operand 5746 states and 15282 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:36,905 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:37,055 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:36:37,222 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:36:37,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:37,341 INFO L93 Difference]: Finished difference Result 12652 states and 32606 transitions. [2021-05-21 17:36:37,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:37,341 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:37,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:37,351 INFO L225 Difference]: With dead ends: 12652 [2021-05-21 17:36:37,351 INFO L226 Difference]: Without dead ends: 12652 [2021-05-21 17:36:37,351 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1144.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:37,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12652 states. [2021-05-21 17:36:37,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12652 to 5810. [2021-05-21 17:36:37,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:37,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-05-21 17:36:37,447 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-05-21 17:36:37,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:37,447 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-05-21 17:36:37,447 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:37,447 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-05-21 17:36:37,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:37,452 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:37,452 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] [2021-05-21 17:36:37,452 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2021-05-21 17:36:37,452 INFO L430 AbstractCegarLoop]: === Iteration 282 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:37,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:37,452 INFO L82 PathProgramCache]: Analyzing trace with hash 393970760, now seen corresponding path program 276 times [2021-05-21 17:36:37,452 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:37,452 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590563591] [2021-05-21 17:36:37,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:37,723 INFO 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 17:36:37,723 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:37,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590563591] [2021-05-21 17:36:37,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590563591] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:37,723 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:37,723 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:37,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893762666] [2021-05-21 17:36:37,723 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:37,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:37,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:37,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:37,724 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:38,523 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:38,683 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:36:38,846 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:36:38,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:38,962 INFO L93 Difference]: Finished difference Result 13498 states and 34466 transitions. [2021-05-21 17:36:38,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:38,962 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:38,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:38,973 INFO L225 Difference]: With dead ends: 13498 [2021-05-21 17:36:38,973 INFO L226 Difference]: Without dead ends: 13498 [2021-05-21 17:36:38,973 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1148.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:38,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13498 states. [2021-05-21 17:36:39,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13498 to 5794. [2021-05-21 17:36:39,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5794 states, 5792 states have (on average 2.662292817679558) internal successors, (15420), 5793 states have internal predecessors, (15420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:39,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5794 states to 5794 states and 15420 transitions. [2021-05-21 17:36:39,057 INFO L78 Accepts]: Start accepts. Automaton has 5794 states and 15420 transitions. Word has length 114 [2021-05-21 17:36:39,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:39,058 INFO L482 AbstractCegarLoop]: Abstraction has 5794 states and 15420 transitions. [2021-05-21 17:36:39,058 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:39,058 INFO L276 IsEmpty]: Start isEmpty. Operand 5794 states and 15420 transitions. [2021-05-21 17:36:39,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:39,061 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:39,061 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:39,062 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2021-05-21 17:36:39,062 INFO L430 AbstractCegarLoop]: === Iteration 283 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:39,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:39,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1191834220, now seen corresponding path program 277 times [2021-05-21 17:36:39,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:39,062 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20007063] [2021-05-21 17:36:39,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:39,343 INFO 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 17:36:39,343 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:39,343 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20007063] [2021-05-21 17:36:39,343 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20007063] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:39,343 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:39,343 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:39,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154089731] [2021-05-21 17:36:39,343 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:39,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:39,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:39,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:39,344 INFO L87 Difference]: Start difference. First operand 5794 states and 15420 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:40,159 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:40,317 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:36:40,482 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:36:40,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:40,608 INFO L93 Difference]: Finished difference Result 16704 states and 42580 transitions. [2021-05-21 17:36:40,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:40,608 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:40,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:40,621 INFO L225 Difference]: With dead ends: 16704 [2021-05-21 17:36:40,621 INFO L226 Difference]: Without dead ends: 16704 [2021-05-21 17:36:40,622 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1163.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:40,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16704 states. [2021-05-21 17:36:40,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16704 to 5810. [2021-05-21 17:36:40,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:40,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-05-21 17:36:40,721 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-05-21 17:36:40,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:40,721 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-05-21 17:36:40,721 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:40,721 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-05-21 17:36:40,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:40,725 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:40,725 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:40,725 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2021-05-21 17:36:40,725 INFO L430 AbstractCegarLoop]: === Iteration 284 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:40,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:40,725 INFO L82 PathProgramCache]: Analyzing trace with hash 943287240, now seen corresponding path program 278 times [2021-05-21 17:36:40,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:40,725 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830570569] [2021-05-21 17:36:40,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:40,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:36:40,989 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:40,989 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830570569] [2021-05-21 17:36:40,989 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830570569] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:40,989 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:40,989 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:40,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120919960] [2021-05-21 17:36:40,989 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:40,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:40,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:40,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:40,990 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:41,807 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:41,958 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:36:42,127 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:36:42,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:42,268 INFO L93 Difference]: Finished difference Result 13662 states and 34918 transitions. [2021-05-21 17:36:42,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:42,268 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:42,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:42,276 INFO L225 Difference]: With dead ends: 13662 [2021-05-21 17:36:42,276 INFO L226 Difference]: Without dead ends: 13662 [2021-05-21 17:36:42,276 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1134.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:42,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13662 states. [2021-05-21 17:36:42,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13662 to 5778. [2021-05-21 17:36:42,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5778 states, 5776 states have (on average 2.6617036011080333) internal successors, (15374), 5777 states have internal predecessors, (15374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:42,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5778 states to 5778 states and 15374 transitions. [2021-05-21 17:36:42,353 INFO L78 Accepts]: Start accepts. Automaton has 5778 states and 15374 transitions. Word has length 114 [2021-05-21 17:36:42,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:42,353 INFO L482 AbstractCegarLoop]: Abstraction has 5778 states and 15374 transitions. [2021-05-21 17:36:42,353 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:42,353 INFO L276 IsEmpty]: Start isEmpty. Operand 5778 states and 15374 transitions. [2021-05-21 17:36:42,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:42,357 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:42,357 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:42,357 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2021-05-21 17:36:42,357 INFO L430 AbstractCegarLoop]: === Iteration 285 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:42,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:42,357 INFO L82 PathProgramCache]: Analyzing trace with hash -76983066, now seen corresponding path program 279 times [2021-05-21 17:36:42,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:42,358 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399461087] [2021-05-21 17:36:42,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:42,641 INFO 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 17:36:42,641 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:42,641 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399461087] [2021-05-21 17:36:42,641 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399461087] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:42,641 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:42,641 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:42,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420837119] [2021-05-21 17:36:42,641 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:42,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:42,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:42,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:42,642 INFO L87 Difference]: Start difference. First operand 5778 states and 15374 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:43,465 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:43,629 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:36:43,802 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:36:43,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:43,933 INFO L93 Difference]: Finished difference Result 12782 states and 32791 transitions. [2021-05-21 17:36:43,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:43,933 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:43,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:43,943 INFO L225 Difference]: With dead ends: 12782 [2021-05-21 17:36:43,944 INFO L226 Difference]: Without dead ends: 12782 [2021-05-21 17:36:43,944 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1166.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:43,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12782 states. [2021-05-21 17:36:44,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12782 to 5826. [2021-05-21 17:36:44,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5824 states have (on average 2.6634615384615383) internal successors, (15512), 5825 states have internal predecessors, (15512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:44,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 15512 transitions. [2021-05-21 17:36:44,027 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 15512 transitions. Word has length 114 [2021-05-21 17:36:44,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:44,027 INFO L482 AbstractCegarLoop]: Abstraction has 5826 states and 15512 transitions. [2021-05-21 17:36:44,027 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:44,028 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 15512 transitions. [2021-05-21 17:36:44,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:44,031 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:44,031 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:44,032 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2021-05-21 17:36:44,032 INFO L430 AbstractCegarLoop]: === Iteration 286 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:44,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:44,032 INFO L82 PathProgramCache]: Analyzing trace with hash -325530046, now seen corresponding path program 280 times [2021-05-21 17:36:44,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:44,032 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87752733] [2021-05-21 17:36:44,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:44,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:36:44,314 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:44,314 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87752733] [2021-05-21 17:36:44,314 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87752733] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:44,315 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:44,315 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:44,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028294529] [2021-05-21 17:36:44,315 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:44,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:44,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:44,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:44,315 INFO L87 Difference]: Start difference. First operand 5826 states and 15512 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:45,152 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:45,306 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:36:45,480 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:36:45,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:45,598 INFO L93 Difference]: Finished difference Result 12618 states and 32389 transitions. [2021-05-21 17:36:45,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:45,598 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:45,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:45,609 INFO L225 Difference]: With dead ends: 12618 [2021-05-21 17:36:45,609 INFO L226 Difference]: Without dead ends: 12618 [2021-05-21 17:36:45,609 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1173.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:45,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12618 states. [2021-05-21 17:36:45,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12618 to 5810. [2021-05-21 17:36:45,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:45,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-05-21 17:36:45,694 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-05-21 17:36:45,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:45,694 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-05-21 17:36:45,694 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:45,694 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-05-21 17:36:45,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:45,698 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:45,698 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] [2021-05-21 17:36:45,698 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2021-05-21 17:36:45,698 INFO L430 AbstractCegarLoop]: === Iteration 287 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:45,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:45,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1482347350, now seen corresponding path program 281 times [2021-05-21 17:36:45,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:45,699 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933373649] [2021-05-21 17:36:45,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:45,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:45,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:36:45,980 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:45,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933373649] [2021-05-21 17:36:45,980 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933373649] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:45,980 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:45,980 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:45,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936771434] [2021-05-21 17:36:45,981 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:45,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:45,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:45,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:45,981 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:46,771 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:36:46,933 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:36:47,104 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:36:47,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:47,220 INFO L93 Difference]: Finished difference Result 9676 states and 24961 transitions. [2021-05-21 17:36:47,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:47,220 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:47,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:47,226 INFO L225 Difference]: With dead ends: 9676 [2021-05-21 17:36:47,226 INFO L226 Difference]: Without dead ends: 9676 [2021-05-21 17:36:47,227 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1150.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:47,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9676 states. [2021-05-21 17:36:47,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9676 to 5650. [2021-05-21 17:36:47,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5650 states, 5648 states have (on average 2.656869688385269) internal successors, (15006), 5649 states have internal predecessors, (15006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:47,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5650 states to 5650 states and 15006 transitions. [2021-05-21 17:36:47,291 INFO L78 Accepts]: Start accepts. Automaton has 5650 states and 15006 transitions. Word has length 114 [2021-05-21 17:36:47,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:47,291 INFO L482 AbstractCegarLoop]: Abstraction has 5650 states and 15006 transitions. [2021-05-21 17:36:47,291 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:47,291 INFO L276 IsEmpty]: Start isEmpty. Operand 5650 states and 15006 transitions. [2021-05-21 17:36:47,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:47,295 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:47,295 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:47,295 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2021-05-21 17:36:47,295 INFO L430 AbstractCegarLoop]: === Iteration 288 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:47,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:47,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1750741542, now seen corresponding path program 282 times [2021-05-21 17:36:47,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:47,296 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723878536] [2021-05-21 17:36:47,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:47,579 INFO 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 17:36:47,579 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:47,579 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723878536] [2021-05-21 17:36:47,579 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723878536] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:47,579 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:47,579 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:47,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77798689] [2021-05-21 17:36:47,579 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:47,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:47,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:47,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:47,580 INFO L87 Difference]: Start difference. First operand 5650 states and 15006 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:48,380 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:36:48,543 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:36:48,714 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:36:48,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:48,841 INFO L93 Difference]: Finished difference Result 13716 states and 35578 transitions. [2021-05-21 17:36:48,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:48,841 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:48,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:48,852 INFO L225 Difference]: With dead ends: 13716 [2021-05-21 17:36:48,852 INFO L226 Difference]: Without dead ends: 13716 [2021-05-21 17:36:48,852 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1152.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:48,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13716 states. [2021-05-21 17:36:48,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13716 to 5810. [2021-05-21 17:36:48,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:48,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-05-21 17:36:48,938 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-05-21 17:36:48,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:48,938 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-05-21 17:36:48,938 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:48,938 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-05-21 17:36:48,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:48,942 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:48,942 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:48,942 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2021-05-21 17:36:48,942 INFO L430 AbstractCegarLoop]: === Iteration 289 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:48,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:48,942 INFO L82 PathProgramCache]: Analyzing trace with hash -630989018, now seen corresponding path program 283 times [2021-05-21 17:36:48,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:48,942 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69037203] [2021-05-21 17:36:48,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:49,220 INFO 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 17:36:49,220 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:49,220 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69037203] [2021-05-21 17:36:49,220 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69037203] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:49,220 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:49,220 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:49,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429419280] [2021-05-21 17:36:49,220 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:49,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:49,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:49,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:49,221 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:50,042 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:50,190 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:36:50,361 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:36:50,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:50,490 INFO L93 Difference]: Finished difference Result 16340 states and 42301 transitions. [2021-05-21 17:36:50,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:50,490 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:50,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:50,504 INFO L225 Difference]: With dead ends: 16340 [2021-05-21 17:36:50,504 INFO L226 Difference]: Without dead ends: 16340 [2021-05-21 17:36:50,504 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1160.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:50,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16340 states. [2021-05-21 17:36:50,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16340 to 5826. [2021-05-21 17:36:50,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5824 states have (on average 2.6634615384615383) internal successors, (15512), 5825 states have internal predecessors, (15512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:50,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 15512 transitions. [2021-05-21 17:36:50,599 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 15512 transitions. Word has length 114 [2021-05-21 17:36:50,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:50,599 INFO L482 AbstractCegarLoop]: Abstraction has 5826 states and 15512 transitions. [2021-05-21 17:36:50,600 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:50,600 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 15512 transitions. [2021-05-21 17:36:50,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:50,603 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:50,603 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, 1] [2021-05-21 17:36:50,604 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2021-05-21 17:36:50,604 INFO L430 AbstractCegarLoop]: === Iteration 290 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:50,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:50,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1504485604, now seen corresponding path program 284 times [2021-05-21 17:36:50,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:50,604 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156500059] [2021-05-21 17:36:50,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:50,885 INFO 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 17:36:50,885 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:50,886 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156500059] [2021-05-21 17:36:50,886 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156500059] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:50,886 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:50,886 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:50,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869698456] [2021-05-21 17:36:50,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:50,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:50,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:50,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:50,886 INFO L87 Difference]: Start difference. First operand 5826 states and 15512 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:51,717 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:51,881 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:36:52,051 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:36:52,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:52,198 INFO L93 Difference]: Finished difference Result 14620 states and 37589 transitions. [2021-05-21 17:36:52,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:52,198 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:52,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:52,209 INFO L225 Difference]: With dead ends: 14620 [2021-05-21 17:36:52,209 INFO L226 Difference]: Without dead ends: 14620 [2021-05-21 17:36:52,210 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1158.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:52,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14620 states. [2021-05-21 17:36:52,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14620 to 5778. [2021-05-21 17:36:52,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5778 states, 5776 states have (on average 2.6617036011080333) internal successors, (15374), 5777 states have internal predecessors, (15374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:52,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5778 states to 5778 states and 15374 transitions. [2021-05-21 17:36:52,301 INFO L78 Accepts]: Start accepts. Automaton has 5778 states and 15374 transitions. Word has length 114 [2021-05-21 17:36:52,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:52,301 INFO L482 AbstractCegarLoop]: Abstraction has 5778 states and 15374 transitions. [2021-05-21 17:36:52,301 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:52,301 INFO L276 IsEmpty]: Start isEmpty. Operand 5778 states and 15374 transitions. [2021-05-21 17:36:52,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:52,305 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:52,305 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:52,305 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2021-05-21 17:36:52,305 INFO L430 AbstractCegarLoop]: === Iteration 291 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:52,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:52,306 INFO L82 PathProgramCache]: Analyzing trace with hash -309242394, now seen corresponding path program 285 times [2021-05-21 17:36:52,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:52,306 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415898400] [2021-05-21 17:36:52,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:52,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:36:52,573 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:52,573 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415898400] [2021-05-21 17:36:52,573 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415898400] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:52,573 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:52,573 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:52,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364584419] [2021-05-21 17:36:52,574 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:52,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:52,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:52,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:52,574 INFO L87 Difference]: Start difference. First operand 5778 states and 15374 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:53,253 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:36:53,394 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:53,544 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:36:53,714 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:36:53,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:53,849 INFO L93 Difference]: Finished difference Result 17696 states and 45518 transitions. [2021-05-21 17:36:53,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:53,849 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:53,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:53,864 INFO L225 Difference]: With dead ends: 17696 [2021-05-21 17:36:53,864 INFO L226 Difference]: Without dead ends: 17696 [2021-05-21 17:36:53,864 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1153.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:53,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17696 states. [2021-05-21 17:36:53,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17696 to 5810. [2021-05-21 17:36:53,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:53,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-05-21 17:36:53,968 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-05-21 17:36:53,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:53,968 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-05-21 17:36:53,968 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:53,968 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-05-21 17:36:53,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:53,972 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:53,972 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:53,972 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2021-05-21 17:36:53,973 INFO L430 AbstractCegarLoop]: === Iteration 292 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:53,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:53,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1826232228, now seen corresponding path program 286 times [2021-05-21 17:36:53,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:53,973 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060746215] [2021-05-21 17:36:53,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:54,244 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 17:36:54,244 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:54,244 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060746215] [2021-05-21 17:36:54,244 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060746215] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:54,244 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:54,244 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:54,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056389982] [2021-05-21 17:36:54,244 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:54,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:54,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:54,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:54,245 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:55,065 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:55,226 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:36:55,391 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:36:55,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:55,526 INFO L93 Difference]: Finished difference Result 18542 states and 47378 transitions. [2021-05-21 17:36:55,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:55,526 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:55,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:55,541 INFO L225 Difference]: With dead ends: 18542 [2021-05-21 17:36:55,541 INFO L226 Difference]: Without dead ends: 18542 [2021-05-21 17:36:55,542 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1169.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:55,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18542 states. [2021-05-21 17:36:55,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18542 to 5794. [2021-05-21 17:36:55,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5794 states, 5792 states have (on average 2.662292817679558) internal successors, (15420), 5793 states have internal predecessors, (15420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:55,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5794 states to 5794 states and 15420 transitions. [2021-05-21 17:36:55,648 INFO L78 Accepts]: Start accepts. Automaton has 5794 states and 15420 transitions. Word has length 114 [2021-05-21 17:36:55,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:55,648 INFO L482 AbstractCegarLoop]: Abstraction has 5794 states and 15420 transitions. [2021-05-21 17:36:55,649 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:55,649 INFO L276 IsEmpty]: Start isEmpty. Operand 5794 states and 15420 transitions. [2021-05-21 17:36:55,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:55,652 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:55,652 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:55,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2021-05-21 17:36:55,653 INFO L430 AbstractCegarLoop]: === Iteration 293 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:55,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:55,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1670871608, now seen corresponding path program 287 times [2021-05-21 17:36:55,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:55,653 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035624980] [2021-05-21 17:36:55,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:55,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:36:55,922 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:55,922 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035624980] [2021-05-21 17:36:55,922 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035624980] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:55,922 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:55,922 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:55,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122082311] [2021-05-21 17:36:55,922 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:55,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:55,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:55,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:55,923 INFO L87 Difference]: Start difference. First operand 5794 states and 15420 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:56,723 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:56,880 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:36:57,060 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:36:57,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:57,190 INFO L93 Difference]: Finished difference Result 17842 states and 45749 transitions. [2021-05-21 17:36:57,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:57,190 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:57,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:57,206 INFO L225 Difference]: With dead ends: 17842 [2021-05-21 17:36:57,206 INFO L226 Difference]: Without dead ends: 17842 [2021-05-21 17:36:57,206 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1162.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:57,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17842 states. [2021-05-21 17:36:57,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17842 to 5810. [2021-05-21 17:36:57,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:57,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-05-21 17:36:57,313 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-05-21 17:36:57,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:57,313 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-05-21 17:36:57,314 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:57,314 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-05-21 17:36:57,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:57,317 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:57,317 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:57,317 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2021-05-21 17:36:57,318 INFO L430 AbstractCegarLoop]: === Iteration 294 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:57,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:57,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1919418588, now seen corresponding path program 288 times [2021-05-21 17:36:57,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:57,318 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267065566] [2021-05-21 17:36:57,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:57,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:57,584 INFO 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 17:36:57,584 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:57,584 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267065566] [2021-05-21 17:36:57,584 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267065566] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:57,584 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:57,584 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:57,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446866747] [2021-05-21 17:36:57,585 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:57,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:57,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:57,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:57,585 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:58,298 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:36:58,438 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:36:58,588 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:36:58,757 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:36:58,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:36:58,878 INFO L93 Difference]: Finished difference Result 14800 states and 38087 transitions. [2021-05-21 17:36:58,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:36:58,878 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:36:58,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:36:58,890 INFO L225 Difference]: With dead ends: 14800 [2021-05-21 17:36:58,890 INFO L226 Difference]: Without dead ends: 14800 [2021-05-21 17:36:58,890 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1164.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:36:58,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14800 states. [2021-05-21 17:36:58,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14800 to 5746. [2021-05-21 17:36:58,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5746 states, 5744 states have (on average 2.660515320334262) internal successors, (15282), 5745 states have internal predecessors, (15282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:58,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5746 states to 5746 states and 15282 transitions. [2021-05-21 17:36:58,979 INFO L78 Accepts]: Start accepts. Automaton has 5746 states and 15282 transitions. Word has length 114 [2021-05-21 17:36:58,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:36:58,979 INFO L482 AbstractCegarLoop]: Abstraction has 5746 states and 15282 transitions. [2021-05-21 17:36:58,980 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:36:58,980 INFO L276 IsEmpty]: Start isEmpty. Operand 5746 states and 15282 transitions. [2021-05-21 17:36:58,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:36:58,983 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:36:58,983 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:36:58,983 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2021-05-21 17:36:58,984 INFO L430 AbstractCegarLoop]: === Iteration 295 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:36:58,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:36:58,984 INFO L82 PathProgramCache]: Analyzing trace with hash -444444568, now seen corresponding path program 289 times [2021-05-21 17:36:58,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:36:58,984 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936891588] [2021-05-21 17:36:58,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:36:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:36:59,274 INFO 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 17:36:59,275 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:36:59,275 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936891588] [2021-05-21 17:36:59,275 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936891588] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:36:59,275 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:36:59,275 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:36:59,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212533561] [2021-05-21 17:36:59,275 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:36:59,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:36:59,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:36:59,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:36:59,275 INFO L87 Difference]: Start difference. First operand 5746 states and 15282 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:00,105 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:00,261 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:37:00,430 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:37:00,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:00,573 INFO L93 Difference]: Finished difference Result 18224 states and 46988 transitions. [2021-05-21 17:37:00,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:00,573 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:00,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:00,588 INFO L225 Difference]: With dead ends: 18224 [2021-05-21 17:37:00,588 INFO L226 Difference]: Without dead ends: 18224 [2021-05-21 17:37:00,588 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1162.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:00,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18224 states. [2021-05-21 17:37:00,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18224 to 5810. [2021-05-21 17:37:00,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:00,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-05-21 17:37:00,691 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-05-21 17:37:00,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:00,692 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-05-21 17:37:00,692 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:00,692 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-05-21 17:37:00,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:00,695 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:00,695 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] [2021-05-21 17:37:00,695 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2021-05-21 17:37:00,695 INFO L430 AbstractCegarLoop]: === Iteration 296 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:00,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:00,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1691030054, now seen corresponding path program 290 times [2021-05-21 17:37:00,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:00,696 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792184925] [2021-05-21 17:37:00,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:00,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:00,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:37:00,965 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:00,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792184925] [2021-05-21 17:37:00,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792184925] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:00,965 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:00,965 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:00,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486692563] [2021-05-21 17:37:00,965 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:00,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:00,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:00,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:00,965 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:01,769 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:01,946 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:37:02,111 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:37:02,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:02,245 INFO L93 Difference]: Finished difference Result 19070 states and 48848 transitions. [2021-05-21 17:37:02,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:02,246 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:02,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:02,262 INFO L225 Difference]: With dead ends: 19070 [2021-05-21 17:37:02,262 INFO L226 Difference]: Without dead ends: 19070 [2021-05-21 17:37:02,262 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1149.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:02,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19070 states. [2021-05-21 17:37:02,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19070 to 5794. [2021-05-21 17:37:02,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5794 states, 5792 states have (on average 2.662292817679558) internal successors, (15420), 5793 states have internal predecessors, (15420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:02,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5794 states to 5794 states and 15420 transitions. [2021-05-21 17:37:02,374 INFO L78 Accepts]: Start accepts. Automaton has 5794 states and 15420 transitions. Word has length 114 [2021-05-21 17:37:02,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:02,374 INFO L482 AbstractCegarLoop]: Abstraction has 5794 states and 15420 transitions. [2021-05-21 17:37:02,374 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:02,374 INFO L276 IsEmpty]: Start isEmpty. Operand 5794 states and 15420 transitions. [2021-05-21 17:37:02,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:02,378 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:02,378 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:02,378 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2021-05-21 17:37:02,378 INFO L430 AbstractCegarLoop]: === Iteration 297 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:02,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:02,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1806073782, now seen corresponding path program 291 times [2021-05-21 17:37:02,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:02,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204559094] [2021-05-21 17:37:02,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:02,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:37:02,650 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:02,650 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204559094] [2021-05-21 17:37:02,650 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204559094] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:02,650 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:02,650 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:02,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325185301] [2021-05-21 17:37:02,650 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:02,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:02,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:02,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:02,650 INFO L87 Difference]: Start difference. First operand 5794 states and 15420 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:03,332 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:37:03,474 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:03,638 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:37:03,817 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:37:03,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:03,967 INFO L93 Difference]: Finished difference Result 22276 states and 56962 transitions. [2021-05-21 17:37:03,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:03,967 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:03,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:03,987 INFO L225 Difference]: With dead ends: 22276 [2021-05-21 17:37:03,987 INFO L226 Difference]: Without dead ends: 22276 [2021-05-21 17:37:03,987 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1185.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:04,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22276 states. [2021-05-21 17:37:04,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22276 to 5810. [2021-05-21 17:37:04,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:04,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-05-21 17:37:04,117 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-05-21 17:37:04,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:04,117 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-05-21 17:37:04,117 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:04,117 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-05-21 17:37:04,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:04,121 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:04,121 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:04,121 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2021-05-21 17:37:04,121 INFO L430 AbstractCegarLoop]: === Iteration 298 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:04,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:04,122 INFO L82 PathProgramCache]: Analyzing trace with hash -2054620762, now seen corresponding path program 292 times [2021-05-21 17:37:04,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:04,122 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410780996] [2021-05-21 17:37:04,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:04,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:37:04,413 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:04,413 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410780996] [2021-05-21 17:37:04,413 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410780996] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:04,413 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:04,413 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:04,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823453530] [2021-05-21 17:37:04,413 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:04,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:04,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:04,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:04,413 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:05,227 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:05,382 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:37:05,553 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:37:05,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:05,682 INFO L93 Difference]: Finished difference Result 19234 states and 49300 transitions. [2021-05-21 17:37:05,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:05,682 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:05,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:05,699 INFO L225 Difference]: With dead ends: 19234 [2021-05-21 17:37:05,699 INFO L226 Difference]: Without dead ends: 19234 [2021-05-21 17:37:05,699 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1153.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:05,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19234 states. [2021-05-21 17:37:05,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19234 to 5778. [2021-05-21 17:37:05,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5778 states, 5776 states have (on average 2.6617036011080333) internal successors, (15374), 5777 states have internal predecessors, (15374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:05,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5778 states to 5778 states and 15374 transitions. [2021-05-21 17:37:05,814 INFO L78 Accepts]: Start accepts. Automaton has 5778 states and 15374 transitions. Word has length 114 [2021-05-21 17:37:05,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:05,814 INFO L482 AbstractCegarLoop]: Abstraction has 5778 states and 15374 transitions. [2021-05-21 17:37:05,814 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:05,814 INFO L276 IsEmpty]: Start isEmpty. Operand 5778 states and 15374 transitions. [2021-05-21 17:37:05,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:05,818 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:05,818 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:05,818 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2021-05-21 17:37:05,818 INFO L430 AbstractCegarLoop]: === Iteration 299 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:05,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:05,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1220076228, now seen corresponding path program 293 times [2021-05-21 17:37:05,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:05,819 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209576584] [2021-05-21 17:37:05,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:06,103 INFO 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 17:37:06,103 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:06,103 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209576584] [2021-05-21 17:37:06,103 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209576584] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:06,103 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:06,103 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:06,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146501554] [2021-05-21 17:37:06,103 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:06,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:06,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:06,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:06,104 INFO L87 Difference]: Start difference. First operand 5778 states and 15374 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:06,808 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:37:06,962 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:07,129 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:37:07,305 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:37:07,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:07,453 INFO L93 Difference]: Finished difference Result 18354 states and 47173 transitions. [2021-05-21 17:37:07,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:07,454 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:07,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:07,470 INFO L225 Difference]: With dead ends: 18354 [2021-05-21 17:37:07,470 INFO L226 Difference]: Without dead ends: 18354 [2021-05-21 17:37:07,470 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1194.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:07,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18354 states. [2021-05-21 17:37:07,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18354 to 5826. [2021-05-21 17:37:07,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 5824 states have (on average 2.6634615384615383) internal successors, (15512), 5825 states have internal predecessors, (15512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:07,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 15512 transitions. [2021-05-21 17:37:07,582 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 15512 transitions. Word has length 114 [2021-05-21 17:37:07,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:07,582 INFO L482 AbstractCegarLoop]: Abstraction has 5826 states and 15512 transitions. [2021-05-21 17:37:07,583 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:07,583 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 15512 transitions. [2021-05-21 17:37:07,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:07,587 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:07,587 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:07,587 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2021-05-21 17:37:07,587 INFO L430 AbstractCegarLoop]: === Iteration 300 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:07,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:07,587 INFO L82 PathProgramCache]: Analyzing trace with hash 971529248, now seen corresponding path program 294 times [2021-05-21 17:37:07,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:07,587 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283679743] [2021-05-21 17:37:07,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:07,867 INFO 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 17:37:07,867 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:07,867 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283679743] [2021-05-21 17:37:07,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283679743] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:07,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:07,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:07,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680718295] [2021-05-21 17:37:07,867 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:07,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:07,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:07,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:07,868 INFO L87 Difference]: Start difference. First operand 5826 states and 15512 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:08,684 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:08,835 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:37:09,006 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:37:09,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:09,131 INFO L93 Difference]: Finished difference Result 18190 states and 46771 transitions. [2021-05-21 17:37:09,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:09,131 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:09,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:09,146 INFO L225 Difference]: With dead ends: 18190 [2021-05-21 17:37:09,146 INFO L226 Difference]: Without dead ends: 18190 [2021-05-21 17:37:09,146 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1157.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:09,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18190 states. [2021-05-21 17:37:09,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18190 to 5810. [2021-05-21 17:37:09,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5810 states, 5808 states have (on average 2.662878787878788) internal successors, (15466), 5809 states have internal predecessors, (15466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:09,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 15466 transitions. [2021-05-21 17:37:09,260 INFO L78 Accepts]: Start accepts. Automaton has 5810 states and 15466 transitions. Word has length 114 [2021-05-21 17:37:09,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:09,260 INFO L482 AbstractCegarLoop]: Abstraction has 5810 states and 15466 transitions. [2021-05-21 17:37:09,260 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:09,260 INFO L276 IsEmpty]: Start isEmpty. Operand 5810 states and 15466 transitions. [2021-05-21 17:37:09,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:09,264 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:09,264 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:09,264 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2021-05-21 17:37:09,264 INFO L430 AbstractCegarLoop]: === Iteration 301 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:09,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:09,265 INFO L82 PathProgramCache]: Analyzing trace with hash -185288056, now seen corresponding path program 295 times [2021-05-21 17:37:09,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:09,265 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261236349] [2021-05-21 17:37:09,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:09,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:09,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:37:09,543 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:09,543 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261236349] [2021-05-21 17:37:09,543 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261236349] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:09,543 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:09,543 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:09,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441501651] [2021-05-21 17:37:09,543 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:09,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:09,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:09,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:09,544 INFO L87 Difference]: Start difference. First operand 5810 states and 15466 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:10,334 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:37:10,497 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:37:10,667 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:37:10,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:10,782 INFO L93 Difference]: Finished difference Result 15248 states and 39343 transitions. [2021-05-21 17:37:10,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:10,783 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:10,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:10,795 INFO L225 Difference]: With dead ends: 15248 [2021-05-21 17:37:10,795 INFO L226 Difference]: Without dead ends: 15248 [2021-05-21 17:37:10,795 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1141.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:10,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15248 states. [2021-05-21 17:37:10,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15248 to 5682. [2021-05-21 17:37:10,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5682 states, 5680 states have (on average 2.6580985915492956) internal successors, (15098), 5681 states have internal predecessors, (15098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:10,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5682 states to 5682 states and 15098 transitions. [2021-05-21 17:37:10,885 INFO L78 Accepts]: Start accepts. Automaton has 5682 states and 15098 transitions. Word has length 114 [2021-05-21 17:37:10,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:10,885 INFO L482 AbstractCegarLoop]: Abstraction has 5682 states and 15098 transitions. [2021-05-21 17:37:10,885 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:10,885 INFO L276 IsEmpty]: Start isEmpty. Operand 5682 states and 15098 transitions. [2021-05-21 17:37:10,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:10,889 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:10,889 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:10,889 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2021-05-21 17:37:10,889 INFO L430 AbstractCegarLoop]: === Iteration 302 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:10,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:10,889 INFO L82 PathProgramCache]: Analyzing trace with hash 2027216586, now seen corresponding path program 296 times [2021-05-21 17:37:10,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:10,889 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294237272] [2021-05-21 17:37:10,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:11,154 INFO 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 17:37:11,154 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:11,154 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294237272] [2021-05-21 17:37:11,154 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294237272] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:11,154 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:11,154 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:11,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818893498] [2021-05-21 17:37:11,154 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:11,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:11,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:11,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:11,155 INFO L87 Difference]: Start difference. First operand 5682 states and 15098 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:11,984 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:12,135 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:37:12,309 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:37:12,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:12,435 INFO L93 Difference]: Finished difference Result 13212 states and 34168 transitions. [2021-05-21 17:37:12,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:12,435 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:12,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:12,445 INFO L225 Difference]: With dead ends: 13212 [2021-05-21 17:37:12,445 INFO L226 Difference]: Without dead ends: 13212 [2021-05-21 17:37:12,445 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1150.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:12,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13212 states. [2021-05-21 17:37:12,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13212 to 5762. [2021-05-21 17:37:12,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5762 states, 5760 states have (on average 2.661111111111111) internal successors, (15328), 5761 states have internal predecessors, (15328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:12,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5762 states to 5762 states and 15328 transitions. [2021-05-21 17:37:12,530 INFO L78 Accepts]: Start accepts. Automaton has 5762 states and 15328 transitions. Word has length 114 [2021-05-21 17:37:12,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:12,530 INFO L482 AbstractCegarLoop]: Abstraction has 5762 states and 15328 transitions. [2021-05-21 17:37:12,530 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:12,530 INFO L276 IsEmpty]: Start isEmpty. Operand 5762 states and 15328 transitions. [2021-05-21 17:37:12,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:12,534 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:12,534 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:12,534 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2021-05-21 17:37:12,534 INFO L430 AbstractCegarLoop]: === Iteration 303 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:12,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:12,534 INFO L82 PathProgramCache]: Analyzing trace with hash -132276088, now seen corresponding path program 297 times [2021-05-21 17:37:12,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:12,534 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669796797] [2021-05-21 17:37:12,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:12,803 INFO 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 17:37:12,803 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:12,803 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669796797] [2021-05-21 17:37:12,803 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669796797] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:12,803 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:12,803 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:12,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080171886] [2021-05-21 17:37:12,803 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:12,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:12,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:12,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:12,804 INFO L87 Difference]: Start difference. First operand 5762 states and 15328 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:13,633 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:13,801 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:37:13,975 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:37:14,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:14,126 INFO L93 Difference]: Finished difference Result 14058 states and 36028 transitions. [2021-05-21 17:37:14,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:14,126 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:14,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:14,136 INFO L225 Difference]: With dead ends: 14058 [2021-05-21 17:37:14,136 INFO L226 Difference]: Without dead ends: 14058 [2021-05-21 17:37:14,136 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1166.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:14,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14058 states. [2021-05-21 17:37:14,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14058 to 5746. [2021-05-21 17:37:14,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5746 states, 5744 states have (on average 2.660515320334262) internal successors, (15282), 5745 states have internal predecessors, (15282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:14,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5746 states to 5746 states and 15282 transitions. [2021-05-21 17:37:14,220 INFO L78 Accepts]: Start accepts. Automaton has 5746 states and 15282 transitions. Word has length 114 [2021-05-21 17:37:14,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:14,221 INFO L482 AbstractCegarLoop]: Abstraction has 5746 states and 15282 transitions. [2021-05-21 17:37:14,221 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:14,221 INFO L276 IsEmpty]: Start isEmpty. Operand 5746 states and 15282 transitions. [2021-05-21 17:37:14,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:14,224 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:14,224 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:14,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2021-05-21 17:37:14,225 INFO L430 AbstractCegarLoop]: === Iteration 304 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:14,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:14,225 INFO L82 PathProgramCache]: Analyzing trace with hash 665587372, now seen corresponding path program 298 times [2021-05-21 17:37:14,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:14,225 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837726984] [2021-05-21 17:37:14,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:14,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:37:14,496 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:14,496 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837726984] [2021-05-21 17:37:14,496 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837726984] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:14,496 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:14,496 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:14,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125558187] [2021-05-21 17:37:14,497 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:14,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:14,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:14,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:14,497 INFO L87 Difference]: Start difference. First operand 5746 states and 15282 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:15,325 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:15,488 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:37:15,660 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:37:15,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:15,808 INFO L93 Difference]: Finished difference Result 17264 states and 44142 transitions. [2021-05-21 17:37:15,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:15,808 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:15,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:15,822 INFO L225 Difference]: With dead ends: 17264 [2021-05-21 17:37:15,822 INFO L226 Difference]: Without dead ends: 17264 [2021-05-21 17:37:15,822 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1160.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:15,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17264 states. [2021-05-21 17:37:15,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17264 to 5762. [2021-05-21 17:37:15,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5762 states, 5760 states have (on average 2.661111111111111) internal successors, (15328), 5761 states have internal predecessors, (15328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:15,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5762 states to 5762 states and 15328 transitions. [2021-05-21 17:37:15,924 INFO L78 Accepts]: Start accepts. Automaton has 5762 states and 15328 transitions. Word has length 114 [2021-05-21 17:37:15,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:15,924 INFO L482 AbstractCegarLoop]: Abstraction has 5762 states and 15328 transitions. [2021-05-21 17:37:15,924 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:15,924 INFO L276 IsEmpty]: Start isEmpty. Operand 5762 states and 15328 transitions. [2021-05-21 17:37:15,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:15,928 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:15,928 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] [2021-05-21 17:37:15,928 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2021-05-21 17:37:15,928 INFO L430 AbstractCegarLoop]: === Iteration 305 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:15,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:15,928 INFO L82 PathProgramCache]: Analyzing trace with hash 417040392, now seen corresponding path program 299 times [2021-05-21 17:37:15,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:15,928 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504370077] [2021-05-21 17:37:15,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:16,193 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 17:37:16,193 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:16,193 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504370077] [2021-05-21 17:37:16,193 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504370077] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:16,193 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:16,193 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:16,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606675477] [2021-05-21 17:37:16,194 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:16,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:16,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:16,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:16,194 INFO L87 Difference]: Start difference. First operand 5762 states and 15328 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:17,027 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:17,179 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:37:17,350 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:37:17,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:17,469 INFO L93 Difference]: Finished difference Result 14222 states and 36480 transitions. [2021-05-21 17:37:17,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:17,469 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:17,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:17,480 INFO L225 Difference]: With dead ends: 14222 [2021-05-21 17:37:17,481 INFO L226 Difference]: Without dead ends: 14222 [2021-05-21 17:37:17,481 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1154.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:17,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14222 states. [2021-05-21 17:37:17,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14222 to 5730. [2021-05-21 17:37:17,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5730 states, 5728 states have (on average 2.6599162011173183) internal successors, (15236), 5729 states have internal predecessors, (15236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:17,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5730 states to 5730 states and 15236 transitions. [2021-05-21 17:37:17,567 INFO L78 Accepts]: Start accepts. Automaton has 5730 states and 15236 transitions. Word has length 114 [2021-05-21 17:37:17,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:17,567 INFO L482 AbstractCegarLoop]: Abstraction has 5730 states and 15236 transitions. [2021-05-21 17:37:17,567 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:17,567 INFO L276 IsEmpty]: Start isEmpty. Operand 5730 states and 15236 transitions. [2021-05-21 17:37:17,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:17,571 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:17,571 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:17,571 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2021-05-21 17:37:17,571 INFO L430 AbstractCegarLoop]: === Iteration 306 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:17,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:17,571 INFO L82 PathProgramCache]: Analyzing trace with hash -603229914, now seen corresponding path program 300 times [2021-05-21 17:37:17,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:17,572 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024562311] [2021-05-21 17:37:17,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:17,851 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 17:37:17,851 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:17,851 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024562311] [2021-05-21 17:37:17,851 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024562311] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:17,851 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:17,852 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:17,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638130458] [2021-05-21 17:37:17,852 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:17,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:17,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:17,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:17,852 INFO L87 Difference]: Start difference. First operand 5730 states and 15236 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:18,657 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:18,818 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:37:19,003 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:37:19,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:19,133 INFO L93 Difference]: Finished difference Result 17744 states and 45474 transitions. [2021-05-21 17:37:19,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:19,133 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:19,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:19,147 INFO L225 Difference]: With dead ends: 17744 [2021-05-21 17:37:19,147 INFO L226 Difference]: Without dead ends: 17744 [2021-05-21 17:37:19,147 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1182.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:19,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17744 states. [2021-05-21 17:37:19,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17744 to 5778. [2021-05-21 17:37:19,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5778 states, 5776 states have (on average 2.6617036011080333) internal successors, (15374), 5777 states have internal predecessors, (15374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:19,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5778 states to 5778 states and 15374 transitions. [2021-05-21 17:37:19,250 INFO L78 Accepts]: Start accepts. Automaton has 5778 states and 15374 transitions. Word has length 114 [2021-05-21 17:37:19,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:19,250 INFO L482 AbstractCegarLoop]: Abstraction has 5778 states and 15374 transitions. [2021-05-21 17:37:19,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:19,250 INFO L276 IsEmpty]: Start isEmpty. Operand 5778 states and 15374 transitions. [2021-05-21 17:37:19,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:19,254 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:19,254 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:19,254 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2021-05-21 17:37:19,254 INFO L430 AbstractCegarLoop]: === Iteration 307 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:19,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:19,254 INFO L82 PathProgramCache]: Analyzing trace with hash -851776894, now seen corresponding path program 301 times [2021-05-21 17:37:19,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:19,255 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177319170] [2021-05-21 17:37:19,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:19,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:37:19,531 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:19,532 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177319170] [2021-05-21 17:37:19,532 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177319170] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:19,532 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:19,532 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:19,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977298440] [2021-05-21 17:37:19,532 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:19,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:19,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:19,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:19,532 INFO L87 Difference]: Start difference. First operand 5778 states and 15374 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:20,336 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:20,488 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:37:20,662 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:37:20,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:20,790 INFO L93 Difference]: Finished difference Result 17580 states and 45072 transitions. [2021-05-21 17:37:20,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:20,790 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:20,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:20,804 INFO L225 Difference]: With dead ends: 17580 [2021-05-21 17:37:20,805 INFO L226 Difference]: Without dead ends: 17580 [2021-05-21 17:37:20,805 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1155.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:20,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17580 states. [2021-05-21 17:37:20,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17580 to 5762. [2021-05-21 17:37:20,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5762 states, 5760 states have (on average 2.661111111111111) internal successors, (15328), 5761 states have internal predecessors, (15328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:20,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5762 states to 5762 states and 15328 transitions. [2021-05-21 17:37:20,909 INFO L78 Accepts]: Start accepts. Automaton has 5762 states and 15328 transitions. Word has length 114 [2021-05-21 17:37:20,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:20,909 INFO L482 AbstractCegarLoop]: Abstraction has 5762 states and 15328 transitions. [2021-05-21 17:37:20,909 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:20,909 INFO L276 IsEmpty]: Start isEmpty. Operand 5762 states and 15328 transitions. [2021-05-21 17:37:20,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:20,913 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:20,913 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] [2021-05-21 17:37:20,913 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2021-05-21 17:37:20,913 INFO L430 AbstractCegarLoop]: === Iteration 308 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:20,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:20,913 INFO L82 PathProgramCache]: Analyzing trace with hash -2008594198, now seen corresponding path program 302 times [2021-05-21 17:37:20,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:20,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327527909] [2021-05-21 17:37:20,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:21,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:37:21,196 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:21,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327527909] [2021-05-21 17:37:21,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327527909] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:21,196 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:21,196 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:21,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454312473] [2021-05-21 17:37:21,196 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:21,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:21,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:21,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:21,197 INFO L87 Difference]: Start difference. First operand 5762 states and 15328 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:22,024 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:37:22,193 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:37:22,367 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:37:22,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:22,495 INFO L93 Difference]: Finished difference Result 14638 states and 37644 transitions. [2021-05-21 17:37:22,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:22,495 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:22,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:22,507 INFO L225 Difference]: With dead ends: 14638 [2021-05-21 17:37:22,507 INFO L226 Difference]: Without dead ends: 14638 [2021-05-21 17:37:22,507 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1157.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:22,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14638 states. [2021-05-21 17:37:22,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14638 to 5698. [2021-05-21 17:37:22,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5698 states, 5696 states have (on average 2.658707865168539) internal successors, (15144), 5697 states have internal predecessors, (15144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:22,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5698 states to 5698 states and 15144 transitions. [2021-05-21 17:37:22,597 INFO L78 Accepts]: Start accepts. Automaton has 5698 states and 15144 transitions. Word has length 114 [2021-05-21 17:37:22,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:22,597 INFO L482 AbstractCegarLoop]: Abstraction has 5698 states and 15144 transitions. [2021-05-21 17:37:22,597 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:22,597 INFO L276 IsEmpty]: Start isEmpty. Operand 5698 states and 15144 transitions. [2021-05-21 17:37:22,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:22,601 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:22,601 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:22,601 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2021-05-21 17:37:22,601 INFO L430 AbstractCegarLoop]: === Iteration 309 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:22,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:22,602 INFO L82 PathProgramCache]: Analyzing trace with hash -198870332, now seen corresponding path program 303 times [2021-05-21 17:37:22,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:22,602 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242566579] [2021-05-21 17:37:22,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:22,893 INFO 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 17:37:22,893 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:22,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242566579] [2021-05-21 17:37:22,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242566579] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:22,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:22,894 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:22,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657832939] [2021-05-21 17:37:22,894 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:22,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:22,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:22,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:22,894 INFO L87 Difference]: Start difference. First operand 5698 states and 15144 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:23,719 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:23,897 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:37:24,074 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:37:24,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:24,204 INFO L93 Difference]: Finished difference Result 13310 states and 34261 transitions. [2021-05-21 17:37:24,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:24,205 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:24,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:24,215 INFO L225 Difference]: With dead ends: 13310 [2021-05-21 17:37:24,215 INFO L226 Difference]: Without dead ends: 13310 [2021-05-21 17:37:24,215 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1193.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:24,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13310 states. [2021-05-21 17:37:24,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13310 to 5762. [2021-05-21 17:37:24,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5762 states, 5760 states have (on average 2.661111111111111) internal successors, (15328), 5761 states have internal predecessors, (15328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:24,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5762 states to 5762 states and 15328 transitions. [2021-05-21 17:37:24,302 INFO L78 Accepts]: Start accepts. Automaton has 5762 states and 15328 transitions. Word has length 114 [2021-05-21 17:37:24,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:24,302 INFO L482 AbstractCegarLoop]: Abstraction has 5762 states and 15328 transitions. [2021-05-21 17:37:24,302 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:24,302 INFO L276 IsEmpty]: Start isEmpty. Operand 5762 states and 15328 transitions. [2021-05-21 17:37:24,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:24,306 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:24,306 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:24,306 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2021-05-21 17:37:24,306 INFO L430 AbstractCegarLoop]: === Iteration 310 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:24,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:24,306 INFO L82 PathProgramCache]: Analyzing trace with hash -447417312, now seen corresponding path program 304 times [2021-05-21 17:37:24,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:24,306 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112140948] [2021-05-21 17:37:24,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:24,599 INFO 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 17:37:24,599 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:24,599 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112140948] [2021-05-21 17:37:24,599 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112140948] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:24,599 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:24,599 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:24,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205452564] [2021-05-21 17:37:24,599 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:24,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:24,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:24,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:24,600 INFO L87 Difference]: Start difference. First operand 5762 states and 15328 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:25,406 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:25,559 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:37:25,730 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:37:25,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:25,843 INFO L93 Difference]: Finished difference Result 13146 states and 33859 transitions. [2021-05-21 17:37:25,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:25,843 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:25,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:25,854 INFO L225 Difference]: With dead ends: 13146 [2021-05-21 17:37:25,854 INFO L226 Difference]: Without dead ends: 13146 [2021-05-21 17:37:25,854 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1169.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:25,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13146 states. [2021-05-21 17:37:25,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13146 to 5746. [2021-05-21 17:37:25,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5746 states, 5744 states have (on average 2.660515320334262) internal successors, (15282), 5745 states have internal predecessors, (15282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:25,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5746 states to 5746 states and 15282 transitions. [2021-05-21 17:37:25,939 INFO L78 Accepts]: Start accepts. Automaton has 5746 states and 15282 transitions. Word has length 114 [2021-05-21 17:37:25,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:25,939 INFO L482 AbstractCegarLoop]: Abstraction has 5746 states and 15282 transitions. [2021-05-21 17:37:25,939 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:25,939 INFO L276 IsEmpty]: Start isEmpty. Operand 5746 states and 15282 transitions. [2021-05-21 17:37:25,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:25,943 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:25,943 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:25,943 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2021-05-21 17:37:25,943 INFO L430 AbstractCegarLoop]: === Iteration 311 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:25,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:25,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1604234616, now seen corresponding path program 305 times [2021-05-21 17:37:25,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:25,943 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552402252] [2021-05-21 17:37:25,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:25,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:26,258 INFO 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 17:37:26,258 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:26,258 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552402252] [2021-05-21 17:37:26,258 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552402252] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:26,258 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:26,258 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:26,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723186238] [2021-05-21 17:37:26,258 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:26,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:26,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:26,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:26,259 INFO L87 Difference]: Start difference. First operand 5746 states and 15282 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:27,043 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:37:27,209 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:37:27,386 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:37:27,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:27,502 INFO L93 Difference]: Finished difference Result 13434 states and 34687 transitions. [2021-05-21 17:37:27,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:27,502 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:27,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:27,513 INFO L225 Difference]: With dead ends: 13434 [2021-05-21 17:37:27,513 INFO L226 Difference]: Without dead ends: 13434 [2021-05-21 17:37:27,513 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1183.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:27,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13434 states. [2021-05-21 17:37:27,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13434 to 5714. [2021-05-21 17:37:27,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5714 states, 5712 states have (on average 2.659313725490196) internal successors, (15190), 5713 states have internal predecessors, (15190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:27,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5714 states to 5714 states and 15190 transitions. [2021-05-21 17:37:27,599 INFO L78 Accepts]: Start accepts. Automaton has 5714 states and 15190 transitions. Word has length 114 [2021-05-21 17:37:27,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:27,599 INFO L482 AbstractCegarLoop]: Abstraction has 5714 states and 15190 transitions. [2021-05-21 17:37:27,599 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:27,599 INFO L276 IsEmpty]: Start isEmpty. Operand 5714 states and 15190 transitions. [2021-05-21 17:37:27,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:27,603 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:27,603 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, 1] [2021-05-21 17:37:27,603 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2021-05-21 17:37:27,603 INFO L430 AbstractCegarLoop]: === Iteration 312 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:27,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:27,603 INFO L82 PathProgramCache]: Analyzing trace with hash 103948522, now seen corresponding path program 306 times [2021-05-21 17:37:27,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:27,603 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351487090] [2021-05-21 17:37:27,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:27,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:27,900 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 17:37:27,900 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:27,900 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351487090] [2021-05-21 17:37:27,900 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351487090] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:27,900 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:27,900 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:27,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217109123] [2021-05-21 17:37:27,900 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:27,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:27,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:27,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:27,901 INFO L87 Difference]: Start difference. First operand 5714 states and 15190 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:28,723 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:37:28,904 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:37:29,078 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:37:29,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:29,187 INFO L93 Difference]: Finished difference Result 10076 states and 26095 transitions. [2021-05-21 17:37:29,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:29,187 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:29,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:29,195 INFO L225 Difference]: With dead ends: 10076 [2021-05-21 17:37:29,195 INFO L226 Difference]: Without dead ends: 10076 [2021-05-21 17:37:29,195 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1186.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:29,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10076 states. [2021-05-21 17:37:29,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10076 to 5634. [2021-05-21 17:37:29,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5634 states, 5632 states have (on average 2.65625) internal successors, (14960), 5633 states have internal predecessors, (14960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:29,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5634 states to 5634 states and 14960 transitions. [2021-05-21 17:37:29,262 INFO L78 Accepts]: Start accepts. Automaton has 5634 states and 14960 transitions. Word has length 114 [2021-05-21 17:37:29,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:29,262 INFO L482 AbstractCegarLoop]: Abstraction has 5634 states and 14960 transitions. [2021-05-21 17:37:29,263 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:29,263 INFO L276 IsEmpty]: Start isEmpty. Operand 5634 states and 14960 transitions. [2021-05-21 17:37:29,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:29,266 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:29,266 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:29,266 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2021-05-21 17:37:29,266 INFO L430 AbstractCegarLoop]: === Iteration 313 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:29,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:29,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1885867412, now seen corresponding path program 307 times [2021-05-21 17:37:29,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:29,267 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358595571] [2021-05-21 17:37:29,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:29,550 INFO 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 17:37:29,550 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:29,550 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358595571] [2021-05-21 17:37:29,550 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358595571] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:29,550 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:29,550 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:29,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920509162] [2021-05-21 17:37:29,550 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:29,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:29,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:29,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:29,551 INFO L87 Difference]: Start difference. First operand 5634 states and 14960 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:30,355 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:37:30,514 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:37:30,683 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:37:30,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:30,796 INFO L93 Difference]: Finished difference Result 7514 states and 19441 transitions. [2021-05-21 17:37:30,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:30,796 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:30,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:30,802 INFO L225 Difference]: With dead ends: 7514 [2021-05-21 17:37:30,802 INFO L226 Difference]: Without dead ends: 7514 [2021-05-21 17:37:30,802 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1144.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:30,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7514 states. [2021-05-21 17:37:30,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7514 to 5450. [2021-05-21 17:37:30,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5448 states have (on average 2.6490455212922175) internal successors, (14432), 5449 states have internal predecessors, (14432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:30,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14432 transitions. [2021-05-21 17:37:30,861 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14432 transitions. Word has length 114 [2021-05-21 17:37:30,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:30,861 INFO L482 AbstractCegarLoop]: Abstraction has 5450 states and 14432 transitions. [2021-05-21 17:37:30,861 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:30,861 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14432 transitions. [2021-05-21 17:37:30,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:30,865 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:30,865 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:30,865 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2021-05-21 17:37:30,865 INFO L430 AbstractCegarLoop]: === Iteration 314 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:30,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:30,866 INFO L82 PathProgramCache]: Analyzing trace with hash 27369324, now seen corresponding path program 308 times [2021-05-21 17:37:30,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:30,866 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153417984] [2021-05-21 17:37:30,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:30,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:31,144 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 17:37:31,144 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:31,144 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153417984] [2021-05-21 17:37:31,144 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153417984] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:31,144 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:31,144 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:31,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312711191] [2021-05-21 17:37:31,144 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:31,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:31,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:31,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:31,145 INFO L87 Difference]: Start difference. First operand 5450 states and 14432 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:31,967 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:32,115 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:37:32,287 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:37:32,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:32,403 INFO L93 Difference]: Finished difference Result 10138 states and 26164 transitions. [2021-05-21 17:37:32,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:32,403 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:32,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:32,411 INFO L225 Difference]: With dead ends: 10138 [2021-05-21 17:37:32,411 INFO L226 Difference]: Without dead ends: 10138 [2021-05-21 17:37:32,411 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1142.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:32,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10138 states. [2021-05-21 17:37:32,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10138 to 5466. [2021-05-21 17:37:32,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5464 states have (on average 2.6497071742313323) internal successors, (14478), 5465 states have internal predecessors, (14478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:32,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14478 transitions. [2021-05-21 17:37:32,478 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14478 transitions. Word has length 114 [2021-05-21 17:37:32,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:32,479 INFO L482 AbstractCegarLoop]: Abstraction has 5466 states and 14478 transitions. [2021-05-21 17:37:32,479 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:32,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14478 transitions. [2021-05-21 17:37:32,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:32,482 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:32,482 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] [2021-05-21 17:37:32,482 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2021-05-21 17:37:32,482 INFO L430 AbstractCegarLoop]: === Iteration 315 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:32,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:32,483 INFO L82 PathProgramCache]: Analyzing trace with hash -2132123350, now seen corresponding path program 309 times [2021-05-21 17:37:32,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:32,483 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052224168] [2021-05-21 17:37:32,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:32,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:32,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:37:32,764 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:32,764 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052224168] [2021-05-21 17:37:32,764 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052224168] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:32,764 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:32,764 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:32,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261886188] [2021-05-21 17:37:32,764 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:32,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:32,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:32,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:32,764 INFO L87 Difference]: Start difference. First operand 5466 states and 14478 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:33,441 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:37:33,593 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:33,755 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:37:33,938 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:37:34,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:34,053 INFO L93 Difference]: Finished difference Result 8418 states and 21452 transitions. [2021-05-21 17:37:34,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:34,053 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:34,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:34,059 INFO L225 Difference]: With dead ends: 8418 [2021-05-21 17:37:34,059 INFO L226 Difference]: Without dead ends: 8418 [2021-05-21 17:37:34,059 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1181.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:34,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8418 states. [2021-05-21 17:37:34,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8418 to 5418. [2021-05-21 17:37:34,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5416 states have (on average 2.6477104874446087) internal successors, (14340), 5417 states have internal predecessors, (14340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:34,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14340 transitions. [2021-05-21 17:37:34,119 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14340 transitions. Word has length 114 [2021-05-21 17:37:34,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:34,119 INFO L482 AbstractCegarLoop]: Abstraction has 5418 states and 14340 transitions. [2021-05-21 17:37:34,119 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:34,119 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14340 transitions. [2021-05-21 17:37:34,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:34,122 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:34,122 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:34,122 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2021-05-21 17:37:34,123 INFO L430 AbstractCegarLoop]: === Iteration 316 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:34,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:34,123 INFO L82 PathProgramCache]: Analyzing trace with hash 349115948, now seen corresponding path program 310 times [2021-05-21 17:37:34,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:34,123 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762830757] [2021-05-21 17:37:34,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:34,390 INFO 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 17:37:34,391 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:34,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762830757] [2021-05-21 17:37:34,391 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762830757] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:34,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:34,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:34,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105855408] [2021-05-21 17:37:34,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:34,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:34,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:34,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:34,391 INFO L87 Difference]: Start difference. First operand 5418 states and 14340 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:35,193 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:35,345 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:37:35,515 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:37:35,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:35,631 INFO L93 Difference]: Finished difference Result 11494 states and 29381 transitions. [2021-05-21 17:37:35,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:35,631 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:35,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:35,640 INFO L225 Difference]: With dead ends: 11494 [2021-05-21 17:37:35,640 INFO L226 Difference]: Without dead ends: 11494 [2021-05-21 17:37:35,640 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1152.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:35,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11494 states. [2021-05-21 17:37:35,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11494 to 5450. [2021-05-21 17:37:35,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5448 states have (on average 2.6490455212922175) internal successors, (14432), 5449 states have internal predecessors, (14432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:35,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14432 transitions. [2021-05-21 17:37:35,718 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14432 transitions. Word has length 114 [2021-05-21 17:37:35,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:35,718 INFO L482 AbstractCegarLoop]: Abstraction has 5450 states and 14432 transitions. [2021-05-21 17:37:35,718 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:35,718 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14432 transitions. [2021-05-21 17:37:35,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:35,721 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:35,721 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:35,721 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2021-05-21 17:37:35,721 INFO L430 AbstractCegarLoop]: === Iteration 317 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:35,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:35,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1810376726, now seen corresponding path program 311 times [2021-05-21 17:37:35,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:35,722 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795198348] [2021-05-21 17:37:35,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:35,994 INFO 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 17:37:35,994 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:35,994 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795198348] [2021-05-21 17:37:35,994 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795198348] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:35,994 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:35,994 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:35,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319845691] [2021-05-21 17:37:35,995 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:35,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:35,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:35,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:35,995 INFO L87 Difference]: Start difference. First operand 5450 states and 14432 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:36,669 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:37:36,803 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:36,963 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:37:37,127 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:37:37,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:37,243 INFO L93 Difference]: Finished difference Result 12340 states and 31241 transitions. [2021-05-21 17:37:37,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:37,243 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:37,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:37,253 INFO L225 Difference]: With dead ends: 12340 [2021-05-21 17:37:37,253 INFO L226 Difference]: Without dead ends: 12340 [2021-05-21 17:37:37,253 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1169.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:37,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12340 states. [2021-05-21 17:37:37,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12340 to 5434. [2021-05-21 17:37:37,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 5432 states have (on average 2.648379970544919) internal successors, (14386), 5433 states have internal predecessors, (14386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:37,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 14386 transitions. [2021-05-21 17:37:37,334 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 14386 transitions. Word has length 114 [2021-05-21 17:37:37,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:37,334 INFO L482 AbstractCegarLoop]: Abstraction has 5434 states and 14386 transitions. [2021-05-21 17:37:37,334 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:37,334 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 14386 transitions. [2021-05-21 17:37:37,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:37,338 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:37,338 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:37,338 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2021-05-21 17:37:37,338 INFO L430 AbstractCegarLoop]: === Iteration 318 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:37,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:37,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1012513266, now seen corresponding path program 312 times [2021-05-21 17:37:37,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:37,339 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879564339] [2021-05-21 17:37:37,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:37,619 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 17:37:37,619 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:37,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879564339] [2021-05-21 17:37:37,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879564339] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:37,619 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:37,620 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:37,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226030187] [2021-05-21 17:37:37,620 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:37,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:37,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:37,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:37,620 INFO L87 Difference]: Start difference. First operand 5434 states and 14386 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:38,410 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:38,567 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:37:38,733 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:37:38,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:38,863 INFO L93 Difference]: Finished difference Result 11640 states and 29612 transitions. [2021-05-21 17:37:38,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:38,863 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:38,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:38,870 INFO L225 Difference]: With dead ends: 11640 [2021-05-21 17:37:38,870 INFO L226 Difference]: Without dead ends: 11640 [2021-05-21 17:37:38,870 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1158.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:38,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11640 states. [2021-05-21 17:37:38,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11640 to 5450. [2021-05-21 17:37:38,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5448 states have (on average 2.6490455212922175) internal successors, (14432), 5449 states have internal predecessors, (14432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:38,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14432 transitions. [2021-05-21 17:37:38,934 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14432 transitions. Word has length 114 [2021-05-21 17:37:38,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:38,934 INFO L482 AbstractCegarLoop]: Abstraction has 5450 states and 14432 transitions. [2021-05-21 17:37:38,935 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:38,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14432 transitions. [2021-05-21 17:37:38,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:38,938 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:38,938 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:38,938 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2021-05-21 17:37:38,938 INFO L430 AbstractCegarLoop]: === Iteration 319 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:38,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:38,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1261060246, now seen corresponding path program 313 times [2021-05-21 17:37:38,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:38,939 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763306019] [2021-05-21 17:37:38,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:38,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:39,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:37:39,204 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:39,204 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763306019] [2021-05-21 17:37:39,204 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763306019] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:39,204 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:39,204 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:39,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177947142] [2021-05-21 17:37:39,204 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:39,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:39,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:39,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:39,205 INFO L87 Difference]: Start difference. First operand 5450 states and 14432 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:40,001 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:40,149 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:37:40,318 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:37:40,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:40,413 INFO L93 Difference]: Finished difference Result 8598 states and 21950 transitions. [2021-05-21 17:37:40,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:40,413 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:40,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:40,419 INFO L225 Difference]: With dead ends: 8598 [2021-05-21 17:37:40,419 INFO L226 Difference]: Without dead ends: 8598 [2021-05-21 17:37:40,420 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1138.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:40,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8598 states. [2021-05-21 17:37:40,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8598 to 5386. [2021-05-21 17:37:40,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5386 states, 5384 states have (on average 2.6463595839524516) internal successors, (14248), 5385 states have internal predecessors, (14248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:40,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5386 states to 5386 states and 14248 transitions. [2021-05-21 17:37:40,480 INFO L78 Accepts]: Start accepts. Automaton has 5386 states and 14248 transitions. Word has length 114 [2021-05-21 17:37:40,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:40,481 INFO L482 AbstractCegarLoop]: Abstraction has 5386 states and 14248 transitions. [2021-05-21 17:37:40,481 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:40,481 INFO L276 IsEmpty]: Start isEmpty. Operand 5386 states and 14248 transitions. [2021-05-21 17:37:40,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:40,484 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:40,484 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:40,484 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2021-05-21 17:37:40,484 INFO L430 AbstractCegarLoop]: === Iteration 320 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:40,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:40,485 INFO L82 PathProgramCache]: Analyzing trace with hash 213913774, now seen corresponding path program 314 times [2021-05-21 17:37:40,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:40,485 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533326319] [2021-05-21 17:37:40,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:40,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:37:40,750 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:40,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533326319] [2021-05-21 17:37:40,750 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533326319] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:40,750 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:40,751 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:40,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048017387] [2021-05-21 17:37:40,751 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:40,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:40,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:40,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:40,751 INFO L87 Difference]: Start difference. First operand 5386 states and 14248 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:41,561 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:41,719 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:37:41,885 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:37:41,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:41,998 INFO L93 Difference]: Finished difference Result 12022 states and 30851 transitions. [2021-05-21 17:37:41,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:41,999 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:41,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:42,007 INFO L225 Difference]: With dead ends: 12022 [2021-05-21 17:37:42,007 INFO L226 Difference]: Without dead ends: 12022 [2021-05-21 17:37:42,007 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1149.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:42,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12022 states. [2021-05-21 17:37:42,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12022 to 5450. [2021-05-21 17:37:42,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5448 states have (on average 2.6490455212922175) internal successors, (14432), 5449 states have internal predecessors, (14432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:42,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14432 transitions. [2021-05-21 17:37:42,083 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14432 transitions. Word has length 114 [2021-05-21 17:37:42,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:42,083 INFO L482 AbstractCegarLoop]: Abstraction has 5450 states and 14432 transitions. [2021-05-21 17:37:42,083 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:42,083 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14432 transitions. [2021-05-21 17:37:42,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:42,087 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:42,087 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:42,087 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2021-05-21 17:37:42,087 INFO L430 AbstractCegarLoop]: === Iteration 321 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:42,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:42,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1945578900, now seen corresponding path program 315 times [2021-05-21 17:37:42,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:42,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508189745] [2021-05-21 17:37:42,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:42,357 INFO 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 17:37:42,357 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:42,357 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508189745] [2021-05-21 17:37:42,357 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508189745] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:42,357 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:42,357 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:42,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163986727] [2021-05-21 17:37:42,357 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:42,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:42,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:42,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:42,358 INFO L87 Difference]: Start difference. First operand 5450 states and 14432 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:43,171 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:43,344 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:37:43,512 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:37:43,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:43,646 INFO L93 Difference]: Finished difference Result 12868 states and 32711 transitions. [2021-05-21 17:37:43,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:43,646 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:43,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:43,657 INFO L225 Difference]: With dead ends: 12868 [2021-05-21 17:37:43,657 INFO L226 Difference]: Without dead ends: 12868 [2021-05-21 17:37:43,657 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1156.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:43,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12868 states. [2021-05-21 17:37:43,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12868 to 5434. [2021-05-21 17:37:43,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 5432 states have (on average 2.648379970544919) internal successors, (14386), 5433 states have internal predecessors, (14386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:43,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 14386 transitions. [2021-05-21 17:37:43,755 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 14386 transitions. Word has length 114 [2021-05-21 17:37:43,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:43,755 INFO L482 AbstractCegarLoop]: Abstraction has 5434 states and 14386 transitions. [2021-05-21 17:37:43,755 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:43,755 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 14386 transitions. [2021-05-21 17:37:43,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:43,759 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:43,759 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:43,759 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2021-05-21 17:37:43,759 INFO L430 AbstractCegarLoop]: === Iteration 322 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:43,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:43,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1147715440, now seen corresponding path program 316 times [2021-05-21 17:37:43,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:43,759 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127186500] [2021-05-21 17:37:43,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:44,027 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 17:37:44,027 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:44,027 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127186500] [2021-05-21 17:37:44,027 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127186500] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:44,027 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:44,028 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:44,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521699009] [2021-05-21 17:37:44,028 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:44,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:44,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:44,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:44,028 INFO L87 Difference]: Start difference. First operand 5434 states and 14386 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:44,818 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:44,975 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:37:45,140 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:37:45,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:45,268 INFO L93 Difference]: Finished difference Result 16074 states and 40825 transitions. [2021-05-21 17:37:45,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:45,268 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:45,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:45,283 INFO L225 Difference]: With dead ends: 16074 [2021-05-21 17:37:45,283 INFO L226 Difference]: Without dead ends: 16074 [2021-05-21 17:37:45,283 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1145.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:45,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16074 states. [2021-05-21 17:37:45,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16074 to 5450. [2021-05-21 17:37:45,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5448 states have (on average 2.6490455212922175) internal successors, (14432), 5449 states have internal predecessors, (14432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:45,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14432 transitions. [2021-05-21 17:37:45,378 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14432 transitions. Word has length 114 [2021-05-21 17:37:45,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:45,378 INFO L482 AbstractCegarLoop]: Abstraction has 5450 states and 14432 transitions. [2021-05-21 17:37:45,378 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:45,378 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14432 transitions. [2021-05-21 17:37:45,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:45,382 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:45,382 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:45,382 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2021-05-21 17:37:45,382 INFO L430 AbstractCegarLoop]: === Iteration 323 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:45,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:45,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1396262420, now seen corresponding path program 317 times [2021-05-21 17:37:45,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:45,382 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334666510] [2021-05-21 17:37:45,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:45,654 INFO 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 17:37:45,655 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:45,655 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334666510] [2021-05-21 17:37:45,655 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334666510] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:45,655 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:45,655 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:45,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077697127] [2021-05-21 17:37:45,655 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:45,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:45,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:45,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:45,655 INFO L87 Difference]: Start difference. First operand 5450 states and 14432 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:46,358 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:37:46,497 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:46,651 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:37:46,823 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:37:46,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:46,942 INFO L93 Difference]: Finished difference Result 13032 states and 33163 transitions. [2021-05-21 17:37:46,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:46,943 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:46,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:46,953 INFO L225 Difference]: With dead ends: 13032 [2021-05-21 17:37:46,953 INFO L226 Difference]: Without dead ends: 13032 [2021-05-21 17:37:46,953 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1159.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:46,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13032 states. [2021-05-21 17:37:47,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13032 to 5418. [2021-05-21 17:37:47,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5416 states have (on average 2.6477104874446087) internal successors, (14340), 5417 states have internal predecessors, (14340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:47,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14340 transitions. [2021-05-21 17:37:47,036 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14340 transitions. Word has length 114 [2021-05-21 17:37:47,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:47,036 INFO L482 AbstractCegarLoop]: Abstraction has 5418 states and 14340 transitions. [2021-05-21 17:37:47,037 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:47,037 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14340 transitions. [2021-05-21 17:37:47,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:47,040 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:47,040 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:47,040 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2021-05-21 17:37:47,040 INFO L430 AbstractCegarLoop]: === Iteration 324 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:47,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:47,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1878434570, now seen corresponding path program 318 times [2021-05-21 17:37:47,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:47,041 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738616391] [2021-05-21 17:37:47,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:47,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:37:47,324 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:47,324 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738616391] [2021-05-21 17:37:47,324 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738616391] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:47,324 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:47,324 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:47,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996486246] [2021-05-21 17:37:47,324 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:47,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:47,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:47,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:47,325 INFO L87 Difference]: Start difference. First operand 5418 states and 14340 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:48,131 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:48,293 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:37:48,464 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:37:48,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:48,579 INFO L93 Difference]: Finished difference Result 12152 states and 31036 transitions. [2021-05-21 17:37:48,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:48,580 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:48,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:48,590 INFO L225 Difference]: With dead ends: 12152 [2021-05-21 17:37:48,590 INFO L226 Difference]: Without dead ends: 12152 [2021-05-21 17:37:48,590 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1178.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:48,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12152 states. [2021-05-21 17:37:48,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12152 to 5466. [2021-05-21 17:37:48,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5464 states have (on average 2.6497071742313323) internal successors, (14478), 5465 states have internal predecessors, (14478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:48,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14478 transitions. [2021-05-21 17:37:48,686 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14478 transitions. Word has length 114 [2021-05-21 17:37:48,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:48,686 INFO L482 AbstractCegarLoop]: Abstraction has 5466 states and 14478 transitions. [2021-05-21 17:37:48,686 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:48,686 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14478 transitions. [2021-05-21 17:37:48,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:48,690 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:48,690 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:48,690 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2021-05-21 17:37:48,690 INFO L430 AbstractCegarLoop]: === Iteration 325 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:48,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:48,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1629887590, now seen corresponding path program 319 times [2021-05-21 17:37:48,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:48,690 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609591494] [2021-05-21 17:37:48,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:48,968 INFO 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 17:37:48,968 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:48,968 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609591494] [2021-05-21 17:37:48,968 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609591494] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:48,968 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:48,968 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:48,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295302782] [2021-05-21 17:37:48,968 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:48,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:48,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:48,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:48,969 INFO L87 Difference]: Start difference. First operand 5466 states and 14478 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:49,629 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:37:49,777 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:49,929 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:37:50,103 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:37:50,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:50,212 INFO L93 Difference]: Finished difference Result 11988 states and 30634 transitions. [2021-05-21 17:37:50,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:50,213 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:50,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:50,222 INFO L225 Difference]: With dead ends: 11988 [2021-05-21 17:37:50,222 INFO L226 Difference]: Without dead ends: 11988 [2021-05-21 17:37:50,222 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1164.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:50,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11988 states. [2021-05-21 17:37:50,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11988 to 5450. [2021-05-21 17:37:50,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5448 states have (on average 2.6490455212922175) internal successors, (14432), 5449 states have internal predecessors, (14432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:50,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14432 transitions. [2021-05-21 17:37:50,301 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14432 transitions. Word has length 114 [2021-05-21 17:37:50,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:50,301 INFO L482 AbstractCegarLoop]: Abstraction has 5450 states and 14432 transitions. [2021-05-21 17:37:50,301 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:50,301 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14432 transitions. [2021-05-21 17:37:50,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:50,304 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:50,304 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:50,304 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2021-05-21 17:37:50,304 INFO L430 AbstractCegarLoop]: === Iteration 326 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:50,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:50,305 INFO L82 PathProgramCache]: Analyzing trace with hash 473070286, now seen corresponding path program 320 times [2021-05-21 17:37:50,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:50,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097072618] [2021-05-21 17:37:50,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:50,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:37:50,588 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:50,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097072618] [2021-05-21 17:37:50,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097072618] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:50,589 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:50,589 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:50,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684703840] [2021-05-21 17:37:50,589 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:50,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:50,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:50,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:50,589 INFO L87 Difference]: Start difference. First operand 5450 states and 14432 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:51,167 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2021-05-21 17:37:51,296 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:37:51,431 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:37:51,598 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:37:51,776 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:37:51,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:51,884 INFO L93 Difference]: Finished difference Result 9046 states and 23206 transitions. [2021-05-21 17:37:51,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:51,884 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:51,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:51,891 INFO L225 Difference]: With dead ends: 9046 [2021-05-21 17:37:51,891 INFO L226 Difference]: Without dead ends: 9046 [2021-05-21 17:37:51,892 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1193.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:51,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9046 states. [2021-05-21 17:37:51,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9046 to 5322. [2021-05-21 17:37:51,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5322 states, 5320 states have (on average 2.643609022556391) internal successors, (14064), 5321 states have internal predecessors, (14064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:51,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5322 states to 5322 states and 14064 transitions. [2021-05-21 17:37:51,959 INFO L78 Accepts]: Start accepts. Automaton has 5322 states and 14064 transitions. Word has length 114 [2021-05-21 17:37:51,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:51,959 INFO L482 AbstractCegarLoop]: Abstraction has 5322 states and 14064 transitions. [2021-05-21 17:37:51,959 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:51,959 INFO L276 IsEmpty]: Start isEmpty. Operand 5322 states and 14064 transitions. [2021-05-21 17:37:51,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:51,963 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:51,963 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:51,963 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2021-05-21 17:37:51,963 INFO L430 AbstractCegarLoop]: === Iteration 327 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:51,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:51,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1609392368, now seen corresponding path program 321 times [2021-05-21 17:37:51,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:51,964 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477610216] [2021-05-21 17:37:51,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:52,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:37:52,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:52,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477610216] [2021-05-21 17:37:52,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477610216] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:52,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:52,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:52,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722526224] [2021-05-21 17:37:52,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:52,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:52,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:52,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:52,236 INFO L87 Difference]: Start difference. First operand 5322 states and 14064 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:53,053 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:53,206 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:37:53,376 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:37:53,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:53,505 INFO L93 Difference]: Finished difference Result 12550 states and 32321 transitions. [2021-05-21 17:37:53,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:53,506 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:53,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:53,515 INFO L225 Difference]: With dead ends: 12550 [2021-05-21 17:37:53,515 INFO L226 Difference]: Without dead ends: 12550 [2021-05-21 17:37:53,516 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1145.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:53,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12550 states. [2021-05-21 17:37:53,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12550 to 5402. [2021-05-21 17:37:53,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5400 states have (on average 2.647037037037037) internal successors, (14294), 5401 states have internal predecessors, (14294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:53,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 14294 transitions. [2021-05-21 17:37:53,594 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 14294 transitions. Word has length 114 [2021-05-21 17:37:53,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:53,594 INFO L482 AbstractCegarLoop]: Abstraction has 5402 states and 14294 transitions. [2021-05-21 17:37:53,594 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:53,594 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 14294 transitions. [2021-05-21 17:37:53,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:53,597 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:53,597 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:53,597 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2021-05-21 17:37:53,597 INFO L430 AbstractCegarLoop]: === Iteration 328 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:53,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:53,598 INFO L82 PathProgramCache]: Analyzing trace with hash 526082254, now seen corresponding path program 322 times [2021-05-21 17:37:53,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:53,598 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938892331] [2021-05-21 17:37:53,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:53,894 INFO 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 17:37:53,894 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:53,894 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938892331] [2021-05-21 17:37:53,894 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938892331] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:53,894 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:53,894 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:53,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600867023] [2021-05-21 17:37:53,894 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:53,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:53,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:53,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:53,895 INFO L87 Difference]: Start difference. First operand 5402 states and 14294 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:54,691 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:54,854 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:37:55,018 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:37:55,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:55,136 INFO L93 Difference]: Finished difference Result 13396 states and 34181 transitions. [2021-05-21 17:37:55,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:55,137 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:55,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:55,148 INFO L225 Difference]: With dead ends: 13396 [2021-05-21 17:37:55,148 INFO L226 Difference]: Without dead ends: 13396 [2021-05-21 17:37:55,149 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1156.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:55,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13396 states. [2021-05-21 17:37:55,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13396 to 5386. [2021-05-21 17:37:55,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5386 states, 5384 states have (on average 2.6463595839524516) internal successors, (14248), 5385 states have internal predecessors, (14248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:55,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5386 states to 5386 states and 14248 transitions. [2021-05-21 17:37:55,234 INFO L78 Accepts]: Start accepts. Automaton has 5386 states and 14248 transitions. Word has length 114 [2021-05-21 17:37:55,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:55,235 INFO L482 AbstractCegarLoop]: Abstraction has 5386 states and 14248 transitions. [2021-05-21 17:37:55,235 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:55,235 INFO L276 IsEmpty]: Start isEmpty. Operand 5386 states and 14248 transitions. [2021-05-21 17:37:55,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:55,238 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:55,238 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:55,238 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2021-05-21 17:37:55,238 INFO L430 AbstractCegarLoop]: === Iteration 329 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:55,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:55,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1323945714, now seen corresponding path program 323 times [2021-05-21 17:37:55,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:55,239 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259140607] [2021-05-21 17:37:55,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:55,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:55,508 INFO 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 17:37:55,508 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:55,508 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259140607] [2021-05-21 17:37:55,508 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259140607] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:55,508 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:55,508 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:55,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409098207] [2021-05-21 17:37:55,508 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:55,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:55,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:55,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:55,509 INFO L87 Difference]: Start difference. First operand 5386 states and 14248 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:56,179 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2021-05-21 17:37:56,314 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:56,473 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:37:56,640 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:37:56,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:56,768 INFO L93 Difference]: Finished difference Result 16602 states and 42295 transitions. [2021-05-21 17:37:56,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:56,768 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:56,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:56,781 INFO L225 Difference]: With dead ends: 16602 [2021-05-21 17:37:56,781 INFO L226 Difference]: Without dead ends: 16602 [2021-05-21 17:37:56,781 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1166.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:56,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16602 states. [2021-05-21 17:37:56,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16602 to 5402. [2021-05-21 17:37:56,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5400 states have (on average 2.647037037037037) internal successors, (14294), 5401 states have internal predecessors, (14294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:56,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 14294 transitions. [2021-05-21 17:37:56,876 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 14294 transitions. Word has length 114 [2021-05-21 17:37:56,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:56,876 INFO L482 AbstractCegarLoop]: Abstraction has 5402 states and 14294 transitions. [2021-05-21 17:37:56,876 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:56,876 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 14294 transitions. [2021-05-21 17:37:56,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:56,879 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:56,879 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:56,879 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2021-05-21 17:37:56,880 INFO L430 AbstractCegarLoop]: === Iteration 330 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:56,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:56,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1075398734, now seen corresponding path program 324 times [2021-05-21 17:37:56,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:56,880 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302946462] [2021-05-21 17:37:56,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:57,153 INFO 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 17:37:57,153 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:57,153 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302946462] [2021-05-21 17:37:57,153 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302946462] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:57,153 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:57,154 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:57,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565913487] [2021-05-21 17:37:57,154 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:57,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:57,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:57,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:57,154 INFO L87 Difference]: Start difference. First operand 5402 states and 14294 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:57,956 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:58,106 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:37:58,275 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:37:58,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:37:58,385 INFO L93 Difference]: Finished difference Result 13560 states and 34633 transitions. [2021-05-21 17:37:58,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:37:58,385 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:37:58,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:37:58,397 INFO L225 Difference]: With dead ends: 13560 [2021-05-21 17:37:58,397 INFO L226 Difference]: Without dead ends: 13560 [2021-05-21 17:37:58,397 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1144.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:37:58,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13560 states. [2021-05-21 17:37:58,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13560 to 5370. [2021-05-21 17:37:58,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5370 states, 5368 states have (on average 2.645678092399404) internal successors, (14202), 5369 states have internal predecessors, (14202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:58,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5370 states to 5370 states and 14202 transitions. [2021-05-21 17:37:58,483 INFO L78 Accepts]: Start accepts. Automaton has 5370 states and 14202 transitions. Word has length 114 [2021-05-21 17:37:58,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:37:58,483 INFO L482 AbstractCegarLoop]: Abstraction has 5370 states and 14202 transitions. [2021-05-21 17:37:58,483 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:58,484 INFO L276 IsEmpty]: Start isEmpty. Operand 5370 states and 14202 transitions. [2021-05-21 17:37:58,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:37:58,487 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:37:58,487 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:37:58,487 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2021-05-21 17:37:58,487 INFO L430 AbstractCegarLoop]: === Iteration 331 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:37:58,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:37:58,488 INFO L82 PathProgramCache]: Analyzing trace with hash 55128428, now seen corresponding path program 325 times [2021-05-21 17:37:58,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:37:58,488 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721220316] [2021-05-21 17:37:58,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:37:58,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:37:58,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:37:58,792 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:37:58,792 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721220316] [2021-05-21 17:37:58,792 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721220316] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:37:58,792 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:37:58,792 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:37:58,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444711784] [2021-05-21 17:37:58,793 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:37:58,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:37:58,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:37:58,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:37:58,793 INFO L87 Difference]: Start difference. First operand 5370 states and 14202 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:37:59,612 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:37:59,776 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:37:59,947 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:38:00,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:00,095 INFO L93 Difference]: Finished difference Result 17082 states and 43627 transitions. [2021-05-21 17:38:00,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:00,096 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:00,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:00,109 INFO L225 Difference]: With dead ends: 17082 [2021-05-21 17:38:00,109 INFO L226 Difference]: Without dead ends: 17082 [2021-05-21 17:38:00,109 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1160.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:00,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17082 states. [2021-05-21 17:38:00,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17082 to 5418. [2021-05-21 17:38:00,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5416 states have (on average 2.6477104874446087) internal successors, (14340), 5417 states have internal predecessors, (14340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:00,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14340 transitions. [2021-05-21 17:38:00,205 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14340 transitions. Word has length 114 [2021-05-21 17:38:00,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:00,205 INFO L482 AbstractCegarLoop]: Abstraction has 5418 states and 14340 transitions. [2021-05-21 17:38:00,205 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:00,206 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14340 transitions. [2021-05-21 17:38:00,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:00,209 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:00,209 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:38:00,209 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2021-05-21 17:38:00,209 INFO L430 AbstractCegarLoop]: === Iteration 332 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:00,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:00,209 INFO L82 PathProgramCache]: Analyzing trace with hash -193418552, now seen corresponding path program 326 times [2021-05-21 17:38:00,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:00,210 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856497715] [2021-05-21 17:38:00,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:00,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:38:00,484 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:00,484 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856497715] [2021-05-21 17:38:00,484 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856497715] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:00,484 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:00,484 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:38:00,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421438597] [2021-05-21 17:38:00,485 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:38:00,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:00,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:38:00,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:38:00,485 INFO L87 Difference]: Start difference. First operand 5418 states and 14340 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:01,296 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:38:01,449 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:38:01,621 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:38:01,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:01,747 INFO L93 Difference]: Finished difference Result 16918 states and 43225 transitions. [2021-05-21 17:38:01,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:01,747 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:01,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:01,760 INFO L225 Difference]: With dead ends: 16918 [2021-05-21 17:38:01,760 INFO L226 Difference]: Without dead ends: 16918 [2021-05-21 17:38:01,761 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1163.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:01,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16918 states. [2021-05-21 17:38:01,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16918 to 5402. [2021-05-21 17:38:01,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5400 states have (on average 2.647037037037037) internal successors, (14294), 5401 states have internal predecessors, (14294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:01,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 14294 transitions. [2021-05-21 17:38:01,855 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 14294 transitions. Word has length 114 [2021-05-21 17:38:01,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:01,855 INFO L482 AbstractCegarLoop]: Abstraction has 5402 states and 14294 transitions. [2021-05-21 17:38:01,856 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:01,856 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 14294 transitions. [2021-05-21 17:38:01,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:01,859 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:01,859 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:38:01,859 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2021-05-21 17:38:01,859 INFO L430 AbstractCegarLoop]: === Iteration 333 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:01,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:01,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1350235856, now seen corresponding path program 327 times [2021-05-21 17:38:01,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:01,860 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892713662] [2021-05-21 17:38:01,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:02,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:38:02,137 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:02,137 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892713662] [2021-05-21 17:38:02,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892713662] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:02,138 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:02,138 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:38:02,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413450074] [2021-05-21 17:38:02,138 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:38:02,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:02,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:38:02,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:38:02,138 INFO L87 Difference]: Start difference. First operand 5402 states and 14294 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:02,920 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:38:03,083 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:38:03,255 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:38:03,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:03,374 INFO L93 Difference]: Finished difference Result 13976 states and 35797 transitions. [2021-05-21 17:38:03,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:03,374 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:03,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:03,387 INFO L225 Difference]: With dead ends: 13976 [2021-05-21 17:38:03,387 INFO L226 Difference]: Without dead ends: 13976 [2021-05-21 17:38:03,387 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1143.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:03,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13976 states. [2021-05-21 17:38:03,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13976 to 5338. [2021-05-21 17:38:03,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5338 states, 5336 states have (on average 2.644302848575712) internal successors, (14110), 5337 states have internal predecessors, (14110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:03,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 14110 transitions. [2021-05-21 17:38:03,490 INFO L78 Accepts]: Start accepts. Automaton has 5338 states and 14110 transitions. Word has length 114 [2021-05-21 17:38:03,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:03,490 INFO L482 AbstractCegarLoop]: Abstraction has 5338 states and 14110 transitions. [2021-05-21 17:38:03,491 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:03,491 INFO L276 IsEmpty]: Start isEmpty. Operand 5338 states and 14110 transitions. [2021-05-21 17:38:03,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:03,494 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:03,494 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:38:03,494 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2021-05-21 17:38:03,494 INFO L430 AbstractCegarLoop]: === Iteration 334 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:03,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:03,495 INFO L82 PathProgramCache]: Analyzing trace with hash 459488010, now seen corresponding path program 328 times [2021-05-21 17:38:03,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:03,495 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156351857] [2021-05-21 17:38:03,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:03,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:03,785 INFO 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 17:38:03,785 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:03,785 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156351857] [2021-05-21 17:38:03,785 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156351857] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:03,785 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:03,785 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:38:03,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773351551] [2021-05-21 17:38:03,785 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:38:03,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:03,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:38:03,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:38:03,786 INFO L87 Difference]: Start difference. First operand 5338 states and 14110 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:04,584 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:38:04,746 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:38:04,914 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:38:05,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:05,033 INFO L93 Difference]: Finished difference Result 12648 states and 32414 transitions. [2021-05-21 17:38:05,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:05,033 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:05,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:05,044 INFO L225 Difference]: With dead ends: 12648 [2021-05-21 17:38:05,044 INFO L226 Difference]: Without dead ends: 12648 [2021-05-21 17:38:05,044 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1175.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:05,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12648 states. [2021-05-21 17:38:05,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12648 to 5402. [2021-05-21 17:38:05,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5400 states have (on average 2.647037037037037) internal successors, (14294), 5401 states have internal predecessors, (14294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:05,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 14294 transitions. [2021-05-21 17:38:05,125 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 14294 transitions. Word has length 114 [2021-05-21 17:38:05,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:05,125 INFO L482 AbstractCegarLoop]: Abstraction has 5402 states and 14294 transitions. [2021-05-21 17:38:05,125 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:05,125 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 14294 transitions. [2021-05-21 17:38:05,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:05,128 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:05,128 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:38:05,128 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2021-05-21 17:38:05,128 INFO L430 AbstractCegarLoop]: === Iteration 335 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:05,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:05,129 INFO L82 PathProgramCache]: Analyzing trace with hash 210941030, now seen corresponding path program 329 times [2021-05-21 17:38:05,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:05,129 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614119893] [2021-05-21 17:38:05,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:05,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:38:05,415 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:05,415 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614119893] [2021-05-21 17:38:05,415 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614119893] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:05,415 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:05,415 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:38:05,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108343259] [2021-05-21 17:38:05,415 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:38:05,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:05,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:38:05,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:38:05,416 INFO L87 Difference]: Start difference. First operand 5402 states and 14294 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:06,248 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:38:06,402 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:38:06,577 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:38:06,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:06,702 INFO L93 Difference]: Finished difference Result 12484 states and 32012 transitions. [2021-05-21 17:38:06,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:06,703 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:06,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:06,713 INFO L225 Difference]: With dead ends: 12484 [2021-05-21 17:38:06,713 INFO L226 Difference]: Without dead ends: 12484 [2021-05-21 17:38:06,713 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1178.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:06,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12484 states. [2021-05-21 17:38:06,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12484 to 5386. [2021-05-21 17:38:06,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5386 states, 5384 states have (on average 2.6463595839524516) internal successors, (14248), 5385 states have internal predecessors, (14248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:06,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5386 states to 5386 states and 14248 transitions. [2021-05-21 17:38:06,792 INFO L78 Accepts]: Start accepts. Automaton has 5386 states and 14248 transitions. Word has length 114 [2021-05-21 17:38:06,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:06,792 INFO L482 AbstractCegarLoop]: Abstraction has 5386 states and 14248 transitions. [2021-05-21 17:38:06,792 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:06,792 INFO L276 IsEmpty]: Start isEmpty. Operand 5386 states and 14248 transitions. [2021-05-21 17:38:06,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:06,796 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:06,796 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, 1] [2021-05-21 17:38:06,796 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2021-05-21 17:38:06,796 INFO L430 AbstractCegarLoop]: === Iteration 336 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:06,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:06,796 INFO L82 PathProgramCache]: Analyzing trace with hash -945876274, now seen corresponding path program 330 times [2021-05-21 17:38:06,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:06,797 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606340311] [2021-05-21 17:38:06,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:07,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:38:07,090 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:07,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606340311] [2021-05-21 17:38:07,090 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606340311] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:07,090 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:07,090 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:38:07,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618890032] [2021-05-21 17:38:07,090 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:38:07,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:07,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:38:07,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:38:07,091 INFO L87 Difference]: Start difference. First operand 5386 states and 14248 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:07,776 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:38:07,909 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:38:08,078 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:38:08,255 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:38:08,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:08,378 INFO L93 Difference]: Finished difference Result 12772 states and 32840 transitions. [2021-05-21 17:38:08,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:08,379 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:08,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:08,389 INFO L225 Difference]: With dead ends: 12772 [2021-05-21 17:38:08,389 INFO L226 Difference]: Without dead ends: 12772 [2021-05-21 17:38:08,389 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1175.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:08,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12772 states. [2021-05-21 17:38:08,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12772 to 5354. [2021-05-21 17:38:08,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5354 states, 5352 states have (on average 2.6449925261584455) internal successors, (14156), 5353 states have internal predecessors, (14156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:08,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5354 states to 5354 states and 14156 transitions. [2021-05-21 17:38:08,483 INFO L78 Accepts]: Start accepts. Automaton has 5354 states and 14156 transitions. Word has length 114 [2021-05-21 17:38:08,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:08,484 INFO L482 AbstractCegarLoop]: Abstraction has 5354 states and 14156 transitions. [2021-05-21 17:38:08,484 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:08,484 INFO L276 IsEmpty]: Start isEmpty. Operand 5354 states and 14156 transitions. [2021-05-21 17:38:08,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:08,487 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:08,487 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:38:08,487 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2021-05-21 17:38:08,487 INFO L430 AbstractCegarLoop]: === Iteration 337 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:08,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:08,488 INFO L82 PathProgramCache]: Analyzing trace with hash 762306864, now seen corresponding path program 331 times [2021-05-21 17:38:08,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:08,488 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907151744] [2021-05-21 17:38:08,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:08,796 INFO 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 17:38:08,796 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:08,796 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907151744] [2021-05-21 17:38:08,796 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907151744] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:08,797 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:08,797 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:38:08,797 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256648392] [2021-05-21 17:38:08,797 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:38:08,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:08,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:38:08,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:38:08,797 INFO L87 Difference]: Start difference. First operand 5354 states and 14156 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:09,577 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:38:09,741 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:38:09,914 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:38:10,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:10,019 INFO L93 Difference]: Finished difference Result 9414 states and 24248 transitions. [2021-05-21 17:38:10,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:10,019 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:10,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:10,026 INFO L225 Difference]: With dead ends: 9414 [2021-05-21 17:38:10,027 INFO L226 Difference]: Without dead ends: 9414 [2021-05-21 17:38:10,027 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1153.2ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:10,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9414 states. [2021-05-21 17:38:10,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9414 to 5290. [2021-05-21 17:38:10,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5290 states, 5288 states have (on average 2.6422087745839637) internal successors, (13972), 5289 states have internal predecessors, (13972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:10,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5290 states to 5290 states and 13972 transitions. [2021-05-21 17:38:10,093 INFO L78 Accepts]: Start accepts. Automaton has 5290 states and 13972 transitions. Word has length 114 [2021-05-21 17:38:10,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:10,093 INFO L482 AbstractCegarLoop]: Abstraction has 5290 states and 13972 transitions. [2021-05-21 17:38:10,093 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:10,093 INFO L276 IsEmpty]: Start isEmpty. Operand 5290 states and 13972 transitions. [2021-05-21 17:38:10,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:10,097 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:10,097 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:38:10,097 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2021-05-21 17:38:10,097 INFO L430 AbstractCegarLoop]: === Iteration 338 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:10,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:10,097 INFO L82 PathProgramCache]: Analyzing trace with hash 804610408, now seen corresponding path program 332 times [2021-05-21 17:38:10,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:10,097 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453300767] [2021-05-21 17:38:10,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:10,367 INFO 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 17:38:10,367 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:10,367 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453300767] [2021-05-21 17:38:10,367 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453300767] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:10,367 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:10,367 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:38:10,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260955951] [2021-05-21 17:38:10,367 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:38:10,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:10,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:38:10,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:38:10,368 INFO L87 Difference]: Start difference. First operand 5290 states and 13972 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:11,185 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:38:11,334 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:38:11,502 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:38:11,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:11,606 INFO L93 Difference]: Finished difference Result 6978 states and 17939 transitions. [2021-05-21 17:38:11,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:11,607 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:11,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:11,611 INFO L225 Difference]: With dead ends: 6978 [2021-05-21 17:38:11,611 INFO L226 Difference]: Without dead ends: 6978 [2021-05-21 17:38:11,611 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1138.5ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:11,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6978 states. [2021-05-21 17:38:11,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6978 to 5198. [2021-05-21 17:38:11,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5198 states, 5196 states have (on average 2.638183217859892) internal successors, (13708), 5197 states have internal predecessors, (13708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:11,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5198 states to 5198 states and 13708 transitions. [2021-05-21 17:38:11,667 INFO L78 Accepts]: Start accepts. Automaton has 5198 states and 13708 transitions. Word has length 114 [2021-05-21 17:38:11,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:11,667 INFO L482 AbstractCegarLoop]: Abstraction has 5198 states and 13708 transitions. [2021-05-21 17:38:11,667 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:11,667 INFO L276 IsEmpty]: Start isEmpty. Operand 5198 states and 13708 transitions. [2021-05-21 17:38:11,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:11,670 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:11,670 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:38:11,670 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2021-05-21 17:38:11,670 INFO L430 AbstractCegarLoop]: === Iteration 339 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:11,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:11,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1354882266, now seen corresponding path program 333 times [2021-05-21 17:38:11,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:11,671 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812550823] [2021-05-21 17:38:11,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:11,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:38:11,942 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:11,942 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812550823] [2021-05-21 17:38:11,942 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812550823] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:11,942 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:11,942 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:38:11,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672293854] [2021-05-21 17:38:11,942 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:38:11,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:11,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:38:11,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:38:11,942 INFO L87 Difference]: Start difference. First operand 5198 states and 13708 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:12,722 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:38:12,882 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:38:13,044 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:38:13,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:13,142 INFO L93 Difference]: Finished difference Result 7824 states and 19799 transitions. [2021-05-21 17:38:13,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:13,143 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:13,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:13,148 INFO L225 Difference]: With dead ends: 7824 [2021-05-21 17:38:13,148 INFO L226 Difference]: Without dead ends: 7824 [2021-05-21 17:38:13,148 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1149.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:13,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7824 states. [2021-05-21 17:38:13,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7824 to 5182. [2021-05-21 17:38:13,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5182 states, 5180 states have (on average 2.6374517374517374) internal successors, (13662), 5181 states have internal predecessors, (13662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:13,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5182 states to 5182 states and 13662 transitions. [2021-05-21 17:38:13,205 INFO L78 Accepts]: Start accepts. Automaton has 5182 states and 13662 transitions. Word has length 114 [2021-05-21 17:38:13,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:13,205 INFO L482 AbstractCegarLoop]: Abstraction has 5182 states and 13662 transitions. [2021-05-21 17:38:13,205 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:13,205 INFO L276 IsEmpty]: Start isEmpty. Operand 5182 states and 13662 transitions. [2021-05-21 17:38:13,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:13,208 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:13,208 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] [2021-05-21 17:38:13,208 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2021-05-21 17:38:13,208 INFO L430 AbstractCegarLoop]: === Iteration 340 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:13,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:13,209 INFO L82 PathProgramCache]: Analyzing trace with hash -557018806, now seen corresponding path program 334 times [2021-05-21 17:38:13,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:13,209 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47757885] [2021-05-21 17:38:13,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:13,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:13,516 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 17:38:13,517 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:13,517 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47757885] [2021-05-21 17:38:13,517 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47757885] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:13,517 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:13,517 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:38:13,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983273336] [2021-05-21 17:38:13,517 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:38:13,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:13,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:38:13,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:38:13,517 INFO L87 Difference]: Start difference. First operand 5182 states and 13662 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:14,303 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:38:14,460 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:38:14,624 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:38:14,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:14,734 INFO L93 Difference]: Finished difference Result 11030 states and 27913 transitions. [2021-05-21 17:38:14,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:14,734 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:14,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:14,742 INFO L225 Difference]: With dead ends: 11030 [2021-05-21 17:38:14,742 INFO L226 Difference]: Without dead ends: 11030 [2021-05-21 17:38:14,743 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1165.6ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:14,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11030 states. [2021-05-21 17:38:14,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11030 to 5198. [2021-05-21 17:38:14,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5198 states, 5196 states have (on average 2.638183217859892) internal successors, (13708), 5197 states have internal predecessors, (13708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:14,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5198 states to 5198 states and 13708 transitions. [2021-05-21 17:38:14,813 INFO L78 Accepts]: Start accepts. Automaton has 5198 states and 13708 transitions. Word has length 114 [2021-05-21 17:38:14,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:14,813 INFO L482 AbstractCegarLoop]: Abstraction has 5198 states and 13708 transitions. [2021-05-21 17:38:14,813 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:14,813 INFO L276 IsEmpty]: Start isEmpty. Operand 5198 states and 13708 transitions. [2021-05-21 17:38:14,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:14,816 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:14,816 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:38:14,816 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2021-05-21 17:38:14,816 INFO L430 AbstractCegarLoop]: === Iteration 341 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:14,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:14,817 INFO L82 PathProgramCache]: Analyzing trace with hash -805565786, now seen corresponding path program 335 times [2021-05-21 17:38:14,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:14,817 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369620473] [2021-05-21 17:38:14,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:15,081 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 17:38:15,081 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:15,081 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369620473] [2021-05-21 17:38:15,081 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369620473] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:15,081 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:15,081 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:38:15,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767580268] [2021-05-21 17:38:15,082 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:38:15,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:15,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:38:15,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:38:15,082 INFO L87 Difference]: Start difference. First operand 5198 states and 13708 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:15,890 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:38:16,052 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:38:16,220 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:38:16,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:16,319 INFO L93 Difference]: Finished difference Result 7988 states and 20251 transitions. [2021-05-21 17:38:16,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:16,319 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:16,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:16,324 INFO L225 Difference]: With dead ends: 7988 [2021-05-21 17:38:16,324 INFO L226 Difference]: Without dead ends: 7988 [2021-05-21 17:38:16,325 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1154.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:16,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7988 states. [2021-05-21 17:38:16,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7988 to 5166. [2021-05-21 17:38:16,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5164 states have (on average 2.6367157242447714) internal successors, (13616), 5165 states have internal predecessors, (13616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:16,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 13616 transitions. [2021-05-21 17:38:16,383 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 13616 transitions. Word has length 114 [2021-05-21 17:38:16,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:16,383 INFO L482 AbstractCegarLoop]: Abstraction has 5166 states and 13616 transitions. [2021-05-21 17:38:16,383 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:16,383 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 13616 transitions. [2021-05-21 17:38:16,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:16,386 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:16,386 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:38:16,387 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2021-05-21 17:38:16,387 INFO L430 AbstractCegarLoop]: === Iteration 342 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:16,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:16,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1825836092, now seen corresponding path program 336 times [2021-05-21 17:38:16,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:16,387 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294138223] [2021-05-21 17:38:16,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:16,668 INFO 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 17:38:16,669 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:16,669 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294138223] [2021-05-21 17:38:16,669 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294138223] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:16,669 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:16,669 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:38:16,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538351805] [2021-05-21 17:38:16,669 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:38:16,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:16,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:38:16,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:38:16,669 INFO L87 Difference]: Start difference. First operand 5166 states and 13616 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:17,482 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:38:17,644 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:38:17,813 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:38:17,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:17,942 INFO L93 Difference]: Finished difference Result 11510 states and 29245 transitions. [2021-05-21 17:38:17,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:17,942 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:17,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:17,951 INFO L225 Difference]: With dead ends: 11510 [2021-05-21 17:38:17,951 INFO L226 Difference]: Without dead ends: 11510 [2021-05-21 17:38:17,951 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1163.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:17,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11510 states. [2021-05-21 17:38:18,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11510 to 5214. [2021-05-21 17:38:18,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5214 states, 5212 states have (on average 2.638910207214121) internal successors, (13754), 5213 states have internal predecessors, (13754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:18,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5214 states to 5214 states and 13754 transitions. [2021-05-21 17:38:18,027 INFO L78 Accepts]: Start accepts. Automaton has 5214 states and 13754 transitions. Word has length 114 [2021-05-21 17:38:18,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:18,028 INFO L482 AbstractCegarLoop]: Abstraction has 5214 states and 13754 transitions. [2021-05-21 17:38:18,028 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:18,028 INFO L276 IsEmpty]: Start isEmpty. Operand 5214 states and 13754 transitions. [2021-05-21 17:38:18,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:18,031 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:18,031 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:38:18,031 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2021-05-21 17:38:18,031 INFO L430 AbstractCegarLoop]: === Iteration 343 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:18,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:18,031 INFO L82 PathProgramCache]: Analyzing trace with hash -2074383072, now seen corresponding path program 337 times [2021-05-21 17:38:18,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:18,032 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413108862] [2021-05-21 17:38:18,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:18,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:38:18,336 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:18,336 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413108862] [2021-05-21 17:38:18,336 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413108862] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:18,336 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:18,336 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:38:18,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487252921] [2021-05-21 17:38:18,336 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:38:18,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:18,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:38:18,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:38:18,337 INFO L87 Difference]: Start difference. First operand 5214 states and 13754 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:19,132 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:38:19,281 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:38:19,449 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:38:19,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:19,557 INFO L93 Difference]: Finished difference Result 11346 states and 28843 transitions. [2021-05-21 17:38:19,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:19,557 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:19,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:19,566 INFO L225 Difference]: With dead ends: 11346 [2021-05-21 17:38:19,566 INFO L226 Difference]: Without dead ends: 11346 [2021-05-21 17:38:19,566 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1179.4ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:19,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11346 states. [2021-05-21 17:38:19,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11346 to 5198. [2021-05-21 17:38:19,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5198 states, 5196 states have (on average 2.638183217859892) internal successors, (13708), 5197 states have internal predecessors, (13708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:19,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5198 states to 5198 states and 13708 transitions. [2021-05-21 17:38:19,637 INFO L78 Accepts]: Start accepts. Automaton has 5198 states and 13708 transitions. Word has length 114 [2021-05-21 17:38:19,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:19,637 INFO L482 AbstractCegarLoop]: Abstraction has 5198 states and 13708 transitions. [2021-05-21 17:38:19,637 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:19,637 INFO L276 IsEmpty]: Start isEmpty. Operand 5198 states and 13708 transitions. [2021-05-21 17:38:19,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:19,641 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:19,641 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:38:19,641 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2021-05-21 17:38:19,641 INFO L430 AbstractCegarLoop]: === Iteration 344 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:19,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:19,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1063766920, now seen corresponding path program 338 times [2021-05-21 17:38:19,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:19,641 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130902068] [2021-05-21 17:38:19,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:19,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:38:19,919 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:19,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130902068] [2021-05-21 17:38:19,920 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130902068] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:19,920 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:19,920 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:38:19,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141533423] [2021-05-21 17:38:19,920 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:38:19,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:19,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:38:19,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:38:19,920 INFO L87 Difference]: Start difference. First operand 5198 states and 13708 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:20,711 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:38:20,874 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:38:21,057 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:38:21,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:21,159 INFO L93 Difference]: Finished difference Result 8404 states and 21415 transitions. [2021-05-21 17:38:21,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:21,159 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:21,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:21,164 INFO L225 Difference]: With dead ends: 8404 [2021-05-21 17:38:21,164 INFO L226 Difference]: Without dead ends: 8404 [2021-05-21 17:38:21,164 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1154.9ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:21,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8404 states. [2021-05-21 17:38:21,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8404 to 5134. [2021-05-21 17:38:21,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5134 states, 5132 states have (on average 2.6352299298519095) internal successors, (13524), 5133 states have internal predecessors, (13524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:21,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5134 states to 5134 states and 13524 transitions. [2021-05-21 17:38:21,222 INFO L78 Accepts]: Start accepts. Automaton has 5134 states and 13524 transitions. Word has length 114 [2021-05-21 17:38:21,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:21,222 INFO L482 AbstractCegarLoop]: Abstraction has 5134 states and 13524 transitions. [2021-05-21 17:38:21,222 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:21,222 INFO L276 IsEmpty]: Start isEmpty. Operand 5134 states and 13524 transitions. [2021-05-21 17:38:21,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:21,225 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:21,226 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:38:21,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2021-05-21 17:38:21,226 INFO L430 AbstractCegarLoop]: === Iteration 345 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:21,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:21,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1421476510, now seen corresponding path program 339 times [2021-05-21 17:38:21,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:21,226 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79873491] [2021-05-21 17:38:21,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:21,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:38:21,514 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:21,514 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79873491] [2021-05-21 17:38:21,514 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79873491] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:21,514 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:21,514 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:38:21,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845184834] [2021-05-21 17:38:21,514 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:38:21,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:21,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:38:21,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:38:21,515 INFO L87 Difference]: Start difference. First operand 5134 states and 13524 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:22,296 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:38:22,456 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:38:22,622 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:38:22,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:22,735 INFO L93 Difference]: Finished difference Result 11990 states and 30577 transitions. [2021-05-21 17:38:22,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:22,735 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:22,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:22,744 INFO L225 Difference]: With dead ends: 11990 [2021-05-21 17:38:22,744 INFO L226 Difference]: Without dead ends: 11990 [2021-05-21 17:38:22,744 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1162.8ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:22,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11990 states. [2021-05-21 17:38:22,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11990 to 5198. [2021-05-21 17:38:22,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5198 states, 5196 states have (on average 2.638183217859892) internal successors, (13708), 5197 states have internal predecessors, (13708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:22,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5198 states to 5198 states and 13708 transitions. [2021-05-21 17:38:22,818 INFO L78 Accepts]: Start accepts. Automaton has 5198 states and 13708 transitions. Word has length 114 [2021-05-21 17:38:22,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:22,818 INFO L482 AbstractCegarLoop]: Abstraction has 5198 states and 13708 transitions. [2021-05-21 17:38:22,818 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:22,818 INFO L276 IsEmpty]: Start isEmpty. Operand 5198 states and 13708 transitions. [2021-05-21 17:38:22,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:22,821 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:22,821 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] [2021-05-21 17:38:22,821 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2021-05-21 17:38:22,821 INFO L430 AbstractCegarLoop]: === Iteration 346 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:22,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:22,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1670023490, now seen corresponding path program 340 times [2021-05-21 17:38:22,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:22,822 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158439713] [2021-05-21 17:38:22,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:23,109 INFO 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 17:38:23,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:23,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158439713] [2021-05-21 17:38:23,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158439713] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:23,109 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:23,109 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:38:23,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898325430] [2021-05-21 17:38:23,110 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:38:23,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:23,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:38:23,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:38:23,110 INFO L87 Difference]: Start difference. First operand 5198 states and 13708 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:23,932 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:38:24,087 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:38:24,259 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:38:24,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:24,377 INFO L93 Difference]: Finished difference Result 11826 states and 30175 transitions. [2021-05-21 17:38:24,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:24,377 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:24,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:24,386 INFO L225 Difference]: With dead ends: 11826 [2021-05-21 17:38:24,386 INFO L226 Difference]: Without dead ends: 11826 [2021-05-21 17:38:24,386 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1176.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:24,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11826 states. [2021-05-21 17:38:24,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11826 to 5182. [2021-05-21 17:38:24,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5182 states, 5180 states have (on average 2.6374517374517374) internal successors, (13662), 5181 states have internal predecessors, (13662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:24,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5182 states to 5182 states and 13662 transitions. [2021-05-21 17:38:24,465 INFO L78 Accepts]: Start accepts. Automaton has 5182 states and 13662 transitions. Word has length 114 [2021-05-21 17:38:24,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:24,465 INFO L482 AbstractCegarLoop]: Abstraction has 5182 states and 13662 transitions. [2021-05-21 17:38:24,465 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:24,465 INFO L276 IsEmpty]: Start isEmpty. Operand 5182 states and 13662 transitions. [2021-05-21 17:38:24,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:24,468 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:24,468 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:38:24,468 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2021-05-21 17:38:24,468 INFO L430 AbstractCegarLoop]: === Iteration 347 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:24,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:24,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1468126502, now seen corresponding path program 341 times [2021-05-21 17:38:24,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:24,469 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955171749] [2021-05-21 17:38:24,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:24,761 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 17:38:24,762 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:24,762 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955171749] [2021-05-21 17:38:24,762 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955171749] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:24,762 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:24,762 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:38:24,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035877445] [2021-05-21 17:38:24,762 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:38:24,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:24,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:38:24,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:38:24,762 INFO L87 Difference]: Start difference. First operand 5182 states and 13662 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:25,539 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:38:25,704 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:38:25,876 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:38:26,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:26,001 INFO L93 Difference]: Finished difference Result 12114 states and 31003 transitions. [2021-05-21 17:38:26,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:26,001 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:26,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:26,010 INFO L225 Difference]: With dead ends: 12114 [2021-05-21 17:38:26,010 INFO L226 Difference]: Without dead ends: 12114 [2021-05-21 17:38:26,010 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1159.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:26,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12114 states. [2021-05-21 17:38:26,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12114 to 5150. [2021-05-21 17:38:26,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5150 states, 5148 states have (on average 2.6359751359751358) internal successors, (13570), 5149 states have internal predecessors, (13570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:26,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5150 states to 5150 states and 13570 transitions. [2021-05-21 17:38:26,082 INFO L78 Accepts]: Start accepts. Automaton has 5150 states and 13570 transitions. Word has length 114 [2021-05-21 17:38:26,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:26,082 INFO L482 AbstractCegarLoop]: Abstraction has 5150 states and 13570 transitions. [2021-05-21 17:38:26,082 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:26,082 INFO L276 IsEmpty]: Start isEmpty. Operand 5150 states and 13570 transitions. [2021-05-21 17:38:26,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:26,086 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:26,086 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:38:26,086 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2021-05-21 17:38:26,086 INFO L430 AbstractCegarLoop]: === Iteration 348 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:26,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:26,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1118657656, now seen corresponding path program 342 times [2021-05-21 17:38:26,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:26,086 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581589596] [2021-05-21 17:38:26,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:26,380 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 17:38:26,380 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:26,380 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581589596] [2021-05-21 17:38:26,380 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581589596] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:26,380 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:26,380 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:38:26,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925908792] [2021-05-21 17:38:26,381 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:38:26,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:26,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:38:26,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:38:26,381 INFO L87 Difference]: Start difference. First operand 5150 states and 13570 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:27,161 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:38:27,331 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:38:27,503 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:38:27,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:27,611 INFO L93 Difference]: Finished difference Result 8756 states and 22411 transitions. [2021-05-21 17:38:27,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:27,611 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:27,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:27,617 INFO L225 Difference]: With dead ends: 8756 [2021-05-21 17:38:27,617 INFO L226 Difference]: Without dead ends: 8756 [2021-05-21 17:38:27,618 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1151.0ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:27,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8756 states. [2021-05-21 17:38:27,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8756 to 5118. [2021-05-21 17:38:27,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5118 states, 5116 states have (on average 2.6344800625488665) internal successors, (13478), 5117 states have internal predecessors, (13478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:27,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5118 states to 5118 states and 13478 transitions. [2021-05-21 17:38:27,677 INFO L78 Accepts]: Start accepts. Automaton has 5118 states and 13478 transitions. Word has length 114 [2021-05-21 17:38:27,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:27,677 INFO L482 AbstractCegarLoop]: Abstraction has 5118 states and 13478 transitions. [2021-05-21 17:38:27,677 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:27,677 INFO L276 IsEmpty]: Start isEmpty. Operand 5118 states and 13478 transitions. [2021-05-21 17:38:27,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:27,681 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:27,681 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:38:27,681 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2021-05-21 17:38:27,681 INFO L430 AbstractCegarLoop]: === Iteration 349 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:27,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:27,681 INFO L82 PathProgramCache]: Analyzing trace with hash -244247026, now seen corresponding path program 343 times [2021-05-21 17:38:27,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:27,681 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444244690] [2021-05-21 17:38:27,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:27,983 INFO 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 17:38:27,983 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:27,983 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444244690] [2021-05-21 17:38:27,983 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444244690] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:27,983 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:27,983 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:38:27,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729649948] [2021-05-21 17:38:27,983 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:38:27,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:27,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:38:27,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:38:27,984 INFO L87 Difference]: Start difference. First operand 5118 states and 13478 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:28,665 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2021-05-21 17:38:28,811 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:38:28,971 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2021-05-21 17:38:29,137 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2021-05-21 17:38:29,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:29,242 INFO L93 Difference]: Finished difference Result 7060 states and 17986 transitions. [2021-05-21 17:38:29,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:29,242 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:29,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:29,246 INFO L225 Difference]: With dead ends: 7060 [2021-05-21 17:38:29,246 INFO L226 Difference]: Without dead ends: 7060 [2021-05-21 17:38:29,247 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1198.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:29,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7060 states. [2021-05-21 17:38:29,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7060 to 5010. [2021-05-21 17:38:29,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5010 states, 5008 states have (on average 2.6293929712460065) internal successors, (13168), 5009 states have internal predecessors, (13168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:29,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5010 states to 5010 states and 13168 transitions. [2021-05-21 17:38:29,300 INFO L78 Accepts]: Start accepts. Automaton has 5010 states and 13168 transitions. Word has length 114 [2021-05-21 17:38:29,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:29,300 INFO L482 AbstractCegarLoop]: Abstraction has 5010 states and 13168 transitions. [2021-05-21 17:38:29,300 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:29,300 INFO L276 IsEmpty]: Start isEmpty. Operand 5010 states and 13168 transitions. [2021-05-21 17:38:29,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:29,303 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:29,303 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:38:29,303 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2021-05-21 17:38:29,303 INFO L430 AbstractCegarLoop]: === Iteration 350 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:29,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:29,304 INFO L82 PathProgramCache]: Analyzing trace with hash -492794006, now seen corresponding path program 344 times [2021-05-21 17:38:29,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:29,304 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016435304] [2021-05-21 17:38:29,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:29,599 INFO 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 17:38:29,599 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:29,599 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016435304] [2021-05-21 17:38:29,599 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016435304] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:29,599 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:29,599 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:38:29,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397386223] [2021-05-21 17:38:29,599 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:38:29,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:29,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:38:29,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:38:29,600 INFO L87 Difference]: Start difference. First operand 5010 states and 13168 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:30,381 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2021-05-21 17:38:30,531 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:38:30,700 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:38:30,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:30,789 INFO L93 Difference]: Finished difference Result 6896 states and 17584 transitions. [2021-05-21 17:38:30,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:30,789 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:30,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:30,793 INFO L225 Difference]: With dead ends: 6896 [2021-05-21 17:38:30,793 INFO L226 Difference]: Without dead ends: 6896 [2021-05-21 17:38:30,794 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1165.7ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:30,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6896 states. [2021-05-21 17:38:30,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6896 to 4994. [2021-05-21 17:38:30,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4994 states, 4992 states have (on average 2.628605769230769) internal successors, (13122), 4993 states have internal predecessors, (13122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:30,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4994 states to 4994 states and 13122 transitions. [2021-05-21 17:38:30,871 INFO L78 Accepts]: Start accepts. Automaton has 4994 states and 13122 transitions. Word has length 114 [2021-05-21 17:38:30,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:30,871 INFO L482 AbstractCegarLoop]: Abstraction has 4994 states and 13122 transitions. [2021-05-21 17:38:30,871 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:30,871 INFO L276 IsEmpty]: Start isEmpty. Operand 4994 states and 13122 transitions. [2021-05-21 17:38:30,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:30,875 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:30,875 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:38:30,875 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2021-05-21 17:38:30,875 INFO L430 AbstractCegarLoop]: === Iteration 351 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:30,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:30,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1649611310, now seen corresponding path program 345 times [2021-05-21 17:38:30,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:30,875 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22347665] [2021-05-21 17:38:30,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:31,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:38:31,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:31,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22347665] [2021-05-21 17:38:31,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22347665] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:31,174 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:31,174 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:38:31,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858833322] [2021-05-21 17:38:31,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:38:31,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:31,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:38:31,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:38:31,175 INFO L87 Difference]: Start difference. First operand 4994 states and 13122 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:31,959 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:38:32,122 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:38:32,296 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:38:32,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:32,397 INFO L93 Difference]: Finished difference Result 7184 states and 18412 transitions. [2021-05-21 17:38:32,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:32,397 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:32,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:32,402 INFO L225 Difference]: With dead ends: 7184 [2021-05-21 17:38:32,402 INFO L226 Difference]: Without dead ends: 7184 [2021-05-21 17:38:32,402 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1162.3ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:32,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7184 states. [2021-05-21 17:38:32,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7184 to 4962. [2021-05-21 17:38:32,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4962 states, 4960 states have (on average 2.627016129032258) internal successors, (13030), 4961 states have internal predecessors, (13030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:32,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4962 states to 4962 states and 13030 transitions. [2021-05-21 17:38:32,456 INFO L78 Accepts]: Start accepts. Automaton has 4962 states and 13030 transitions. Word has length 114 [2021-05-21 17:38:32,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:32,456 INFO L482 AbstractCegarLoop]: Abstraction has 4962 states and 13030 transitions. [2021-05-21 17:38:32,457 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:32,457 INFO L276 IsEmpty]: Start isEmpty. Operand 4962 states and 13030 transitions. [2021-05-21 17:38:32,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:32,460 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:32,460 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] [2021-05-21 17:38:32,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2021-05-21 17:38:32,460 INFO L430 AbstractCegarLoop]: === Iteration 352 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:32,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:32,460 INFO L82 PathProgramCache]: Analyzing trace with hash 58571828, now seen corresponding path program 346 times [2021-05-21 17:38:32,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:32,460 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503919936] [2021-05-21 17:38:32,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:32,783 INFO 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 17:38:32,783 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:32,784 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503919936] [2021-05-21 17:38:32,784 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503919936] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:32,784 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:32,784 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:38:32,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950917027] [2021-05-21 17:38:32,784 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:38:32,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:32,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:38:32,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:38:32,784 INFO L87 Difference]: Start difference. First operand 4962 states and 13030 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:33,443 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-05-21 17:38:33,568 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:38:33,733 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:38:33,909 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:38:34,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:34,008 INFO L93 Difference]: Finished difference Result 7472 states and 19240 transitions. [2021-05-21 17:38:34,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:34,008 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:34,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:34,013 INFO L225 Difference]: With dead ends: 7472 [2021-05-21 17:38:34,013 INFO L226 Difference]: Without dead ends: 7472 [2021-05-21 17:38:34,013 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1197.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:34,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7472 states. [2021-05-21 17:38:34,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7472 to 4946. [2021-05-21 17:38:34,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4946 states, 4944 states have (on average 2.6262135922330097) internal successors, (12984), 4945 states have internal predecessors, (12984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:34,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4946 states to 4946 states and 12984 transitions. [2021-05-21 17:38:34,070 INFO L78 Accepts]: Start accepts. Automaton has 4946 states and 12984 transitions. Word has length 114 [2021-05-21 17:38:34,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:34,070 INFO L482 AbstractCegarLoop]: Abstraction has 4946 states and 12984 transitions. [2021-05-21 17:38:34,071 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:34,071 INFO L276 IsEmpty]: Start isEmpty. Operand 4946 states and 12984 transitions. [2021-05-21 17:38:34,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:34,074 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:34,074 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] [2021-05-21 17:38:34,074 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2021-05-21 17:38:34,074 INFO L430 AbstractCegarLoop]: === Iteration 353 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:34,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:34,074 INFO L82 PathProgramCache]: Analyzing trace with hash -960210266, now seen corresponding path program 347 times [2021-05-21 17:38:34,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:34,074 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776522358] [2021-05-21 17:38:34,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:34,385 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 17:38:34,385 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:34,385 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776522358] [2021-05-21 17:38:34,385 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776522358] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:34,385 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:34,385 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-21 17:38:34,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740173448] [2021-05-21 17:38:34,386 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-21 17:38:34,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:34,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-21 17:38:34,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-05-21 17:38:34,386 INFO L87 Difference]: Start difference. First operand 4946 states and 12984 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:35,146 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-05-21 17:38:35,308 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-05-21 17:38:35,480 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-05-21 17:38:35,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:35,570 INFO L93 Difference]: Finished difference Result 3762 states and 9652 transitions. [2021-05-21 17:38:35,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:38:35,570 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:35,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:35,572 INFO L225 Difference]: With dead ends: 3762 [2021-05-21 17:38:35,572 INFO L226 Difference]: Without dead ends: 3762 [2021-05-21 17:38:35,573 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1161.1ms TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2021-05-21 17:38:35,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3762 states. [2021-05-21 17:38:35,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3762 to 3282. [2021-05-21 17:38:35,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3282 states, 3280 states have (on average 2.551219512195122) internal successors, (8368), 3281 states have internal predecessors, (8368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:35,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3282 states to 3282 states and 8368 transitions. [2021-05-21 17:38:35,603 INFO L78 Accepts]: Start accepts. Automaton has 3282 states and 8368 transitions. Word has length 114 [2021-05-21 17:38:35,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:35,603 INFO L482 AbstractCegarLoop]: Abstraction has 3282 states and 8368 transitions. [2021-05-21 17:38:35,603 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:35,603 INFO L276 IsEmpty]: Start isEmpty. Operand 3282 states and 8368 transitions. [2021-05-21 17:38:35,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-05-21 17:38:35,606 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:35,606 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:38:35,606 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2021-05-21 17:38:35,606 INFO L430 AbstractCegarLoop]: === Iteration 354 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:35,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:35,606 INFO L82 PathProgramCache]: Analyzing trace with hash -2081293722, now seen corresponding path program 348 times [2021-05-21 17:38:35,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:35,606 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785757121] [2021-05-21 17:38:35,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:35,890 INFO 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 17:38:35,890 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:35,890 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785757121] [2021-05-21 17:38:35,890 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785757121] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:35,890 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:35,890 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-05-21 17:38:35,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648182133] [2021-05-21 17:38:35,890 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-21 17:38:35,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:35,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-21 17:38:35,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-05-21 17:38:35,891 INFO L87 Difference]: Start difference. First operand 3282 states and 8368 transitions. Second operand has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:36,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:36,728 INFO L93 Difference]: Finished difference Result 3614 states and 9038 transitions. [2021-05-21 17:38:36,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-21 17:38:36,729 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-05-21 17:38:36,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:36,732 INFO L225 Difference]: With dead ends: 3614 [2021-05-21 17:38:36,732 INFO L226 Difference]: Without dead ends: 3614 [2021-05-21 17:38:36,732 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 759.8ms TimeCoverageRelationStatistics Valid=316, Invalid=944, Unknown=0, NotChecked=0, Total=1260 [2021-05-21 17:38:36,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3614 states. [2021-05-21 17:38:36,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3614 to 2995. [2021-05-21 17:38:36,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2995 states, 2994 states have (on average 2.5935203740814963) internal successors, (7765), 2994 states have internal predecessors, (7765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:36,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2995 states to 2995 states and 7765 transitions. [2021-05-21 17:38:36,760 INFO L78 Accepts]: Start accepts. Automaton has 2995 states and 7765 transitions. Word has length 114 [2021-05-21 17:38:36,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:36,760 INFO L482 AbstractCegarLoop]: Abstraction has 2995 states and 7765 transitions. [2021-05-21 17:38:36,760 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 6.0) internal successors, (114), 19 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:36,760 INFO L276 IsEmpty]: Start isEmpty. Operand 2995 states and 7765 transitions. [2021-05-21 17:38:36,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:38:36,762 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:36,762 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, 1] [2021-05-21 17:38:36,762 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2021-05-21 17:38:36,762 INFO L430 AbstractCegarLoop]: === Iteration 355 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:36,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:36,762 INFO L82 PathProgramCache]: Analyzing trace with hash -670494409, now seen corresponding path program 1 times [2021-05-21 17:38:36,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:36,763 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673923334] [2021-05-21 17:38:36,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:38,050 INFO 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 17:38:38,050 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:38,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673923334] [2021-05-21 17:38:38,051 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673923334] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:38,051 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:38,051 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:38:38,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20743845] [2021-05-21 17:38:38,051 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:38:38,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:38,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:38:38,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1103, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:38:38,051 INFO L87 Difference]: Start difference. First operand 2995 states and 7765 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:39,076 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-05-21 17:38:39,273 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 69 [2021-05-21 17:38:39,679 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2021-05-21 17:38:39,912 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 78 [2021-05-21 17:38:40,184 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 83 [2021-05-21 17:38:40,537 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-05-21 17:38:40,927 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 92 [2021-05-21 17:38:41,444 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 94 [2021-05-21 17:38:43,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:43,064 INFO L93 Difference]: Finished difference Result 4106 states and 10488 transitions. [2021-05-21 17:38:43,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 17:38:43,065 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:38:43,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:43,067 INFO L225 Difference]: With dead ends: 4106 [2021-05-21 17:38:43,067 INFO L226 Difference]: Without dead ends: 3840 [2021-05-21 17:38:43,068 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 720 ImplicationChecksByTransitivity, 4527.3ms TimeCoverageRelationStatistics Valid=754, Invalid=3668, Unknown=0, NotChecked=0, Total=4422 [2021-05-21 17:38:43,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3840 states. [2021-05-21 17:38:43,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3840 to 3499. [2021-05-21 17:38:43,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3499 states, 3498 states have (on average 2.6040594625500284) internal successors, (9109), 3498 states have internal predecessors, (9109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:43,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3499 states to 3499 states and 9109 transitions. [2021-05-21 17:38:43,099 INFO L78 Accepts]: Start accepts. Automaton has 3499 states and 9109 transitions. Word has length 120 [2021-05-21 17:38:43,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:43,099 INFO L482 AbstractCegarLoop]: Abstraction has 3499 states and 9109 transitions. [2021-05-21 17:38:43,099 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:43,099 INFO L276 IsEmpty]: Start isEmpty. Operand 3499 states and 9109 transitions. [2021-05-21 17:38:43,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:38:43,102 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:43,102 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:38:43,102 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2021-05-21 17:38:43,102 INFO L430 AbstractCegarLoop]: === Iteration 356 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:43,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:43,102 INFO L82 PathProgramCache]: Analyzing trace with hash -801361073, now seen corresponding path program 2 times [2021-05-21 17:38:43,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:43,102 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876325547] [2021-05-21 17:38:43,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:43,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:44,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:38:44,361 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:44,361 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876325547] [2021-05-21 17:38:44,361 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876325547] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:44,361 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:44,362 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:38:44,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685013982] [2021-05-21 17:38:44,362 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:38:44,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:44,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:38:44,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:38:44,362 INFO L87 Difference]: Start difference. First operand 3499 states and 9109 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:45,177 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2021-05-21 17:38:45,345 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-05-21 17:38:45,544 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 69 [2021-05-21 17:38:45,951 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2021-05-21 17:38:46,185 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 78 [2021-05-21 17:38:46,457 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 83 [2021-05-21 17:38:46,807 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-05-21 17:38:47,171 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 92 [2021-05-21 17:38:47,676 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 94 [2021-05-21 17:38:49,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:49,299 INFO L93 Difference]: Finished difference Result 3937 states and 10031 transitions. [2021-05-21 17:38:49,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-21 17:38:49,299 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:38:49,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:49,302 INFO L225 Difference]: With dead ends: 3937 [2021-05-21 17:38:49,302 INFO L226 Difference]: Without dead ends: 3804 [2021-05-21 17:38:49,302 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 746 ImplicationChecksByTransitivity, 4658.9ms TimeCoverageRelationStatistics Valid=758, Invalid=3798, Unknown=0, NotChecked=0, Total=4556 [2021-05-21 17:38:49,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3804 states. [2021-05-21 17:38:49,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3804 to 3463. [2021-05-21 17:38:49,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3463 states, 3462 states have (on average 2.603408434430965) internal successors, (9013), 3462 states have internal predecessors, (9013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:49,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 9013 transitions. [2021-05-21 17:38:49,333 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 9013 transitions. Word has length 120 [2021-05-21 17:38:49,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:49,333 INFO L482 AbstractCegarLoop]: Abstraction has 3463 states and 9013 transitions. [2021-05-21 17:38:49,333 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:49,333 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 9013 transitions. [2021-05-21 17:38:49,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:38:49,336 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:49,336 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:38:49,336 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2021-05-21 17:38:49,336 INFO L430 AbstractCegarLoop]: === Iteration 357 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:49,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:49,336 INFO L82 PathProgramCache]: Analyzing trace with hash -737052195, now seen corresponding path program 3 times [2021-05-21 17:38:49,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:49,336 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147647094] [2021-05-21 17:38:49,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:50,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:38:50,570 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:50,570 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147647094] [2021-05-21 17:38:50,570 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147647094] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:50,570 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:50,570 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:38:50,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073470613] [2021-05-21 17:38:50,570 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:38:50,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:50,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:38:50,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:38:50,570 INFO L87 Difference]: Start difference. First operand 3463 states and 9013 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:51,400 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2021-05-21 17:38:51,569 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-05-21 17:38:51,767 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 69 [2021-05-21 17:38:52,179 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2021-05-21 17:38:52,417 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 78 [2021-05-21 17:38:52,690 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 83 [2021-05-21 17:38:53,047 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-05-21 17:38:53,416 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 92 [2021-05-21 17:38:53,942 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 94 [2021-05-21 17:38:55,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:38:55,457 INFO L93 Difference]: Finished difference Result 3867 states and 9878 transitions. [2021-05-21 17:38:55,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-21 17:38:55,458 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:38:55,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:38:55,461 INFO L225 Difference]: With dead ends: 3867 [2021-05-21 17:38:55,461 INFO L226 Difference]: Without dead ends: 3554 [2021-05-21 17:38:55,461 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 4508.6ms TimeCoverageRelationStatistics Valid=720, Invalid=3570, Unknown=0, NotChecked=0, Total=4290 [2021-05-21 17:38:55,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3554 states. [2021-05-21 17:38:55,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3554 to 3295. [2021-05-21 17:38:55,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3295 states, 3294 states have (on average 2.612325440194293) internal successors, (8605), 3294 states have internal predecessors, (8605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:55,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3295 states to 3295 states and 8605 transitions. [2021-05-21 17:38:55,491 INFO L78 Accepts]: Start accepts. Automaton has 3295 states and 8605 transitions. Word has length 120 [2021-05-21 17:38:55,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:38:55,491 INFO L482 AbstractCegarLoop]: Abstraction has 3295 states and 8605 transitions. [2021-05-21 17:38:55,491 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:55,491 INFO L276 IsEmpty]: Start isEmpty. Operand 3295 states and 8605 transitions. [2021-05-21 17:38:55,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:38:55,493 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:38:55,494 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:38:55,494 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2021-05-21 17:38:55,494 INFO L430 AbstractCegarLoop]: === Iteration 358 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:38:55,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:38:55,494 INFO L82 PathProgramCache]: Analyzing trace with hash 170838521, now seen corresponding path program 4 times [2021-05-21 17:38:55,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:38:55,494 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562504359] [2021-05-21 17:38:55,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:38:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:38:56,308 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 17:38:56,308 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:38:56,308 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562504359] [2021-05-21 17:38:56,308 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562504359] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:38:56,308 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:38:56,308 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:38:56,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189216430] [2021-05-21 17:38:56,309 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:38:56,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:38:56,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:38:56,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:38:56,309 INFO L87 Difference]: Start difference. First operand 3295 states and 8605 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:38:57,403 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-05-21 17:38:57,762 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2021-05-21 17:38:57,956 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-05-21 17:38:58,175 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 80 [2021-05-21 17:38:58,465 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 84 [2021-05-21 17:38:58,776 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 88 [2021-05-21 17:38:59,221 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 90 [2021-05-21 17:38:59,690 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 93 [2021-05-21 17:39:00,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:39:00,808 INFO L93 Difference]: Finished difference Result 3648 states and 9359 transitions. [2021-05-21 17:39:00,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-21 17:39:00,808 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:39:00,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:39:00,810 INFO L225 Difference]: With dead ends: 3648 [2021-05-21 17:39:00,810 INFO L226 Difference]: Without dead ends: 3489 [2021-05-21 17:39:00,811 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 3806.5ms TimeCoverageRelationStatistics Valid=743, Invalid=3547, Unknown=0, NotChecked=0, Total=4290 [2021-05-21 17:39:00,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3489 states. [2021-05-21 17:39:00,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3489 to 3283. [2021-05-21 17:39:00,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3283 states, 3282 states have (on average 2.6145642900670323) internal successors, (8581), 3282 states have internal predecessors, (8581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:00,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 8581 transitions. [2021-05-21 17:39:00,839 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 8581 transitions. Word has length 120 [2021-05-21 17:39:00,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:39:00,839 INFO L482 AbstractCegarLoop]: Abstraction has 3283 states and 8581 transitions. [2021-05-21 17:39:00,839 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:00,840 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 8581 transitions. [2021-05-21 17:39:00,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:39:00,842 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:39:00,842 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, 1] [2021-05-21 17:39:00,842 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2021-05-21 17:39:00,842 INFO L430 AbstractCegarLoop]: === Iteration 359 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:39:00,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:39:00,842 INFO L82 PathProgramCache]: Analyzing trace with hash 168565253, now seen corresponding path program 5 times [2021-05-21 17:39:00,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:39:00,842 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050580318] [2021-05-21 17:39:00,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:39:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:39:01,659 INFO 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 17:39:01,659 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:39:01,659 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050580318] [2021-05-21 17:39:01,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050580318] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:39:01,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:39:01,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:39:01,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279573622] [2021-05-21 17:39:01,659 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:39:01,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:39:01,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:39:01,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:39:01,660 INFO L87 Difference]: Start difference. First operand 3283 states and 8581 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:02,722 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-05-21 17:39:03,084 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2021-05-21 17:39:03,276 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-05-21 17:39:03,497 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 80 [2021-05-21 17:39:03,791 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 84 [2021-05-21 17:39:04,102 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 88 [2021-05-21 17:39:04,749 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 91 [2021-05-21 17:39:05,036 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 93 [2021-05-21 17:39:06,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:39:06,072 INFO L93 Difference]: Finished difference Result 3682 states and 9417 transitions. [2021-05-21 17:39:06,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-21 17:39:06,073 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:39:06,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:39:06,075 INFO L225 Difference]: With dead ends: 3682 [2021-05-21 17:39:06,075 INFO L226 Difference]: Without dead ends: 3459 [2021-05-21 17:39:06,075 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 3757.1ms TimeCoverageRelationStatistics Valid=724, Invalid=3436, Unknown=0, NotChecked=0, Total=4160 [2021-05-21 17:39:06,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3459 states. [2021-05-21 17:39:06,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3459 to 3249. [2021-05-21 17:39:06,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3249 states, 3248 states have (on average 2.6096059113300494) internal successors, (8476), 3248 states have internal predecessors, (8476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:06,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3249 states to 3249 states and 8476 transitions. [2021-05-21 17:39:06,104 INFO L78 Accepts]: Start accepts. Automaton has 3249 states and 8476 transitions. Word has length 120 [2021-05-21 17:39:06,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:39:06,104 INFO L482 AbstractCegarLoop]: Abstraction has 3249 states and 8476 transitions. [2021-05-21 17:39:06,104 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:06,104 INFO L276 IsEmpty]: Start isEmpty. Operand 3249 states and 8476 transitions. [2021-05-21 17:39:06,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:39:06,106 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:39:06,107 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:39:06,107 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2021-05-21 17:39:06,107 INFO L430 AbstractCegarLoop]: === Iteration 360 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:39:06,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:39:06,107 INFO L82 PathProgramCache]: Analyzing trace with hash 522859321, now seen corresponding path program 6 times [2021-05-21 17:39:06,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:39:06,107 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778152994] [2021-05-21 17:39:06,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:39:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:39:06,925 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 17:39:06,925 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:39:06,925 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778152994] [2021-05-21 17:39:06,925 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778152994] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:39:06,925 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:39:06,925 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:39:06,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818796074] [2021-05-21 17:39:06,925 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:39:06,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:39:06,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:39:06,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1103, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:39:06,926 INFO L87 Difference]: Start difference. First operand 3249 states and 8476 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:07,983 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 67 [2021-05-21 17:39:08,341 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 71 [2021-05-21 17:39:08,533 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-05-21 17:39:08,766 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-05-21 17:39:09,051 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 83 [2021-05-21 17:39:09,456 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2021-05-21 17:39:09,737 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 89 [2021-05-21 17:39:11,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:39:11,396 INFO L93 Difference]: Finished difference Result 4095 states and 10439 transitions. [2021-05-21 17:39:11,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-21 17:39:11,396 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:39:11,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:39:11,399 INFO L225 Difference]: With dead ends: 4095 [2021-05-21 17:39:11,399 INFO L226 Difference]: Without dead ends: 3829 [2021-05-21 17:39:11,400 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 782 ImplicationChecksByTransitivity, 3877.3ms TimeCoverageRelationStatistics Valid=792, Invalid=3900, Unknown=0, NotChecked=0, Total=4692 [2021-05-21 17:39:11,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3829 states. [2021-05-21 17:39:11,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3829 to 3477. [2021-05-21 17:39:11,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3477 states, 3476 states have (on average 2.5972382048331415) internal successors, (9028), 3476 states have internal predecessors, (9028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:11,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3477 states to 3477 states and 9028 transitions. [2021-05-21 17:39:11,431 INFO L78 Accepts]: Start accepts. Automaton has 3477 states and 9028 transitions. Word has length 120 [2021-05-21 17:39:11,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:39:11,431 INFO L482 AbstractCegarLoop]: Abstraction has 3477 states and 9028 transitions. [2021-05-21 17:39:11,431 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:11,431 INFO L276 IsEmpty]: Start isEmpty. Operand 3477 states and 9028 transitions. [2021-05-21 17:39:11,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:39:11,433 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:39:11,433 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:39:11,433 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2021-05-21 17:39:11,433 INFO L430 AbstractCegarLoop]: === Iteration 361 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:39:11,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:39:11,434 INFO L82 PathProgramCache]: Analyzing trace with hash 391992657, now seen corresponding path program 7 times [2021-05-21 17:39:11,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:39:11,434 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437065862] [2021-05-21 17:39:11,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:39:11,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:39:12,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:39:12,255 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:39:12,255 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437065862] [2021-05-21 17:39:12,255 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437065862] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:39:12,255 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:39:12,255 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:39:12,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957949029] [2021-05-21 17:39:12,255 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:39:12,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:39:12,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:39:12,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:39:12,256 INFO L87 Difference]: Start difference. First operand 3477 states and 9028 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:13,312 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 67 [2021-05-21 17:39:13,679 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 71 [2021-05-21 17:39:13,873 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-05-21 17:39:14,096 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-05-21 17:39:14,387 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 83 [2021-05-21 17:39:14,821 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2021-05-21 17:39:15,107 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 89 [2021-05-21 17:39:16,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:39:16,846 INFO L93 Difference]: Finished difference Result 3926 states and 9982 transitions. [2021-05-21 17:39:16,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-05-21 17:39:16,846 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:39:16,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:39:16,849 INFO L225 Difference]: With dead ends: 3926 [2021-05-21 17:39:16,849 INFO L226 Difference]: Without dead ends: 3793 [2021-05-21 17:39:16,850 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 3937.4ms TimeCoverageRelationStatistics Valid=796, Invalid=4034, Unknown=0, NotChecked=0, Total=4830 [2021-05-21 17:39:16,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3793 states. [2021-05-21 17:39:16,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3793 to 3441. [2021-05-21 17:39:16,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3441 states, 3440 states have (on average 2.5965116279069766) internal successors, (8932), 3440 states have internal predecessors, (8932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:16,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3441 states to 3441 states and 8932 transitions. [2021-05-21 17:39:16,881 INFO L78 Accepts]: Start accepts. Automaton has 3441 states and 8932 transitions. Word has length 120 [2021-05-21 17:39:16,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:39:16,881 INFO L482 AbstractCegarLoop]: Abstraction has 3441 states and 8932 transitions. [2021-05-21 17:39:16,881 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:16,881 INFO L276 IsEmpty]: Start isEmpty. Operand 3441 states and 8932 transitions. [2021-05-21 17:39:16,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:39:16,884 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:39:16,884 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:39:16,884 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2021-05-21 17:39:16,884 INFO L430 AbstractCegarLoop]: === Iteration 362 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:39:16,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:39:16,884 INFO L82 PathProgramCache]: Analyzing trace with hash 456301535, now seen corresponding path program 8 times [2021-05-21 17:39:16,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:39:16,884 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144913505] [2021-05-21 17:39:16,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:39:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:39:17,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:39:17,749 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:39:17,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144913505] [2021-05-21 17:39:17,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144913505] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:39:17,749 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:39:17,749 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:39:17,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913788369] [2021-05-21 17:39:17,749 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:39:17,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:39:17,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:39:17,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:39:17,750 INFO L87 Difference]: Start difference. First operand 3441 states and 8932 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:18,791 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 67 [2021-05-21 17:39:19,146 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 71 [2021-05-21 17:39:19,338 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-05-21 17:39:19,557 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-05-21 17:39:19,843 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 83 [2021-05-21 17:39:20,256 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2021-05-21 17:39:20,536 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 89 [2021-05-21 17:39:22,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:39:22,171 INFO L93 Difference]: Finished difference Result 3856 states and 9829 transitions. [2021-05-21 17:39:22,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-21 17:39:22,171 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:39:22,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:39:22,174 INFO L225 Difference]: With dead ends: 3856 [2021-05-21 17:39:22,174 INFO L226 Difference]: Without dead ends: 3543 [2021-05-21 17:39:22,174 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 3839.8ms TimeCoverageRelationStatistics Valid=761, Invalid=3795, Unknown=0, NotChecked=0, Total=4556 [2021-05-21 17:39:22,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3543 states. [2021-05-21 17:39:22,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3543 to 3273. [2021-05-21 17:39:22,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3273 states, 3272 states have (on average 2.6051344743276283) internal successors, (8524), 3272 states have internal predecessors, (8524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:22,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3273 states to 3273 states and 8524 transitions. [2021-05-21 17:39:22,203 INFO L78 Accepts]: Start accepts. Automaton has 3273 states and 8524 transitions. Word has length 120 [2021-05-21 17:39:22,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:39:22,204 INFO L482 AbstractCegarLoop]: Abstraction has 3273 states and 8524 transitions. [2021-05-21 17:39:22,204 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:22,204 INFO L276 IsEmpty]: Start isEmpty. Operand 3273 states and 8524 transitions. [2021-05-21 17:39:22,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:39:22,206 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:39:22,206 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:39:22,206 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2021-05-21 17:39:22,206 INFO L430 AbstractCegarLoop]: === Iteration 363 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:39:22,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:39:22,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1364192251, now seen corresponding path program 9 times [2021-05-21 17:39:22,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:39:22,207 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479994106] [2021-05-21 17:39:22,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:39:22,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:39:23,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:39:23,035 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:39:23,035 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479994106] [2021-05-21 17:39:23,035 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479994106] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:39:23,035 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:39:23,035 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:39:23,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972324980] [2021-05-21 17:39:23,035 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:39:23,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:39:23,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:39:23,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:39:23,036 INFO L87 Difference]: Start difference. First operand 3273 states and 8524 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:24,127 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-05-21 17:39:24,493 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2021-05-21 17:39:24,688 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-05-21 17:39:24,914 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 80 [2021-05-21 17:39:25,211 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 84 [2021-05-21 17:39:25,654 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 86 [2021-05-21 17:39:25,939 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 90 [2021-05-21 17:39:26,590 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 93 [2021-05-21 17:39:27,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:39:27,765 INFO L93 Difference]: Finished difference Result 3636 states and 9309 transitions. [2021-05-21 17:39:27,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-21 17:39:27,765 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:39:27,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:39:27,768 INFO L225 Difference]: With dead ends: 3636 [2021-05-21 17:39:27,768 INFO L226 Difference]: Without dead ends: 3477 [2021-05-21 17:39:27,768 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 726 ImplicationChecksByTransitivity, 3994.5ms TimeCoverageRelationStatistics Valid=786, Invalid=3770, Unknown=0, NotChecked=0, Total=4556 [2021-05-21 17:39:27,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3477 states. [2021-05-21 17:39:27,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3477 to 3261. [2021-05-21 17:39:27,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3261 states, 3260 states have (on average 2.607361963190184) internal successors, (8500), 3260 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 17:39:27,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3261 states to 3261 states and 8500 transitions. [2021-05-21 17:39:27,797 INFO L78 Accepts]: Start accepts. Automaton has 3261 states and 8500 transitions. Word has length 120 [2021-05-21 17:39:27,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:39:27,797 INFO L482 AbstractCegarLoop]: Abstraction has 3261 states and 8500 transitions. [2021-05-21 17:39:27,797 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:27,797 INFO L276 IsEmpty]: Start isEmpty. Operand 3261 states and 8500 transitions. [2021-05-21 17:39:27,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:39:27,799 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:39:27,799 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:39:27,799 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2021-05-21 17:39:27,799 INFO L430 AbstractCegarLoop]: === Iteration 364 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:39:27,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:39:27,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1835663953, now seen corresponding path program 10 times [2021-05-21 17:39:27,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:39:27,800 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511943283] [2021-05-21 17:39:27,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:39:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:39:28,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:39:28,963 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:39:28,963 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511943283] [2021-05-21 17:39:28,963 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511943283] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:39:28,963 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:39:28,964 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:39:28,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872057132] [2021-05-21 17:39:28,964 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:39:28,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:39:28,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:39:28,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1103, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:39:28,964 INFO L87 Difference]: Start difference. First operand 3261 states and 8500 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:29,959 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-05-21 17:39:30,158 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 69 [2021-05-21 17:39:30,553 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2021-05-21 17:39:30,783 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 78 [2021-05-21 17:39:31,050 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 83 [2021-05-21 17:39:31,389 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-05-21 17:39:31,868 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 90 [2021-05-21 17:39:33,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:39:33,752 INFO L93 Difference]: Finished difference Result 4179 states and 10646 transitions. [2021-05-21 17:39:33,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-21 17:39:33,753 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:39:33,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:39:33,756 INFO L225 Difference]: With dead ends: 4179 [2021-05-21 17:39:33,756 INFO L226 Difference]: Without dead ends: 3913 [2021-05-21 17:39:33,756 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 765 ImplicationChecksByTransitivity, 4418.6ms TimeCoverageRelationStatistics Valid=752, Invalid=3804, Unknown=0, NotChecked=0, Total=4556 [2021-05-21 17:39:33,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3913 states. [2021-05-21 17:39:33,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3913 to 3525. [2021-05-21 17:39:33,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3525 states, 3524 states have (on average 2.5993189557321226) internal successors, (9160), 3524 states have internal predecessors, (9160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:33,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3525 states to 3525 states and 9160 transitions. [2021-05-21 17:39:33,788 INFO L78 Accepts]: Start accepts. Automaton has 3525 states and 9160 transitions. Word has length 120 [2021-05-21 17:39:33,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:39:33,788 INFO L482 AbstractCegarLoop]: Abstraction has 3525 states and 9160 transitions. [2021-05-21 17:39:33,788 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:33,788 INFO L276 IsEmpty]: Start isEmpty. Operand 3525 states and 9160 transitions. [2021-05-21 17:39:33,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:39:33,791 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:39:33,791 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:39:33,791 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2021-05-21 17:39:33,791 INFO L430 AbstractCegarLoop]: === Iteration 365 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:39:33,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:39:33,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1966530617, now seen corresponding path program 11 times [2021-05-21 17:39:33,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:39:33,791 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194391746] [2021-05-21 17:39:33,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:39:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:39:34,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:39:34,613 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:39:34,613 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194391746] [2021-05-21 17:39:34,613 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194391746] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:39:34,613 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:39:34,613 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:39:34,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283942835] [2021-05-21 17:39:34,614 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:39:34,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:39:34,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:39:34,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:39:34,614 INFO L87 Difference]: Start difference. First operand 3525 states and 9160 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:35,681 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 67 [2021-05-21 17:39:36,036 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 71 [2021-05-21 17:39:36,229 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-05-21 17:39:36,449 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-05-21 17:39:36,735 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 83 [2021-05-21 17:39:37,145 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2021-05-21 17:39:38,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:39:38,980 INFO L93 Difference]: Finished difference Result 4010 states and 10189 transitions. [2021-05-21 17:39:38,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-21 17:39:38,981 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:39:38,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:39:38,983 INFO L225 Difference]: With dead ends: 4010 [2021-05-21 17:39:38,983 INFO L226 Difference]: Without dead ends: 3877 [2021-05-21 17:39:38,983 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 3772.4ms TimeCoverageRelationStatistics Valid=758, Invalid=3934, Unknown=0, NotChecked=0, Total=4692 [2021-05-21 17:39:38,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3877 states. [2021-05-21 17:39:39,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3877 to 3489. [2021-05-21 17:39:39,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3489 states, 3488 states have (on average 2.5986238532110093) internal successors, (9064), 3488 states have internal predecessors, (9064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:39,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3489 states to 3489 states and 9064 transitions. [2021-05-21 17:39:39,015 INFO L78 Accepts]: Start accepts. Automaton has 3489 states and 9064 transitions. Word has length 120 [2021-05-21 17:39:39,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:39:39,015 INFO L482 AbstractCegarLoop]: Abstraction has 3489 states and 9064 transitions. [2021-05-21 17:39:39,015 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:39,015 INFO L276 IsEmpty]: Start isEmpty. Operand 3489 states and 9064 transitions. [2021-05-21 17:39:39,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:39:39,018 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:39:39,018 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, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 17:39:39,018 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2021-05-21 17:39:39,018 INFO L430 AbstractCegarLoop]: === Iteration 366 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:39:39,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:39:39,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1902221739, now seen corresponding path program 12 times [2021-05-21 17:39:39,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:39:39,018 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521508747] [2021-05-21 17:39:39,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:39:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:39:40,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:39:40,233 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:39:40,233 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521508747] [2021-05-21 17:39:40,233 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521508747] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:39:40,233 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:39:40,233 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:39:40,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548785134] [2021-05-21 17:39:40,234 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:39:40,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:39:40,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:39:40,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:39:40,234 INFO L87 Difference]: Start difference. First operand 3489 states and 9064 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:41,088 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 60 [2021-05-21 17:39:41,258 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-05-21 17:39:41,458 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 69 [2021-05-21 17:39:41,881 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2021-05-21 17:39:42,116 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 78 [2021-05-21 17:39:42,391 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 83 [2021-05-21 17:39:42,747 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-05-21 17:39:43,251 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 90 [2021-05-21 17:39:45,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:39:45,164 INFO L93 Difference]: Finished difference Result 3940 states and 10036 transitions. [2021-05-21 17:39:45,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 17:39:45,164 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:39:45,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:39:45,167 INFO L225 Difference]: With dead ends: 3940 [2021-05-21 17:39:45,167 INFO L226 Difference]: Without dead ends: 3627 [2021-05-21 17:39:45,167 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 4436.0ms TimeCoverageRelationStatistics Valid=723, Invalid=3699, Unknown=0, NotChecked=0, Total=4422 [2021-05-21 17:39:45,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3627 states. [2021-05-21 17:39:45,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3627 to 3321. [2021-05-21 17:39:45,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3321 states, 3320 states have (on average 2.5927710843373495) internal successors, (8608), 3320 states have internal predecessors, (8608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:45,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3321 states to 3321 states and 8608 transitions. [2021-05-21 17:39:45,196 INFO L78 Accepts]: Start accepts. Automaton has 3321 states and 8608 transitions. Word has length 120 [2021-05-21 17:39:45,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:39:45,197 INFO L482 AbstractCegarLoop]: Abstraction has 3321 states and 8608 transitions. [2021-05-21 17:39:45,197 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:45,197 INFO L276 IsEmpty]: Start isEmpty. Operand 3321 states and 8608 transitions. [2021-05-21 17:39:45,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:39:45,199 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:39:45,199 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:39:45,199 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2021-05-21 17:39:45,199 INFO L430 AbstractCegarLoop]: === Iteration 367 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:39:45,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:39:45,199 INFO L82 PathProgramCache]: Analyzing trace with hash 127735699, now seen corresponding path program 13 times [2021-05-21 17:39:45,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:39:45,200 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674250160] [2021-05-21 17:39:45,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:39:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:39:46,364 INFO 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 17:39:46,364 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:39:46,364 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674250160] [2021-05-21 17:39:46,364 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674250160] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:39:46,364 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:39:46,364 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:39:46,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079200499] [2021-05-21 17:39:46,365 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:39:46,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:39:46,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:39:46,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:39:46,365 INFO L87 Difference]: Start difference. First operand 3321 states and 8608 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:47,293 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-05-21 17:39:47,483 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 71 [2021-05-21 17:39:47,876 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 75 [2021-05-21 17:39:48,102 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 80 [2021-05-21 17:39:48,364 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 84 [2021-05-21 17:39:48,692 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-05-21 17:39:49,135 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 90 [2021-05-21 17:39:49,921 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2021-05-21 17:39:50,068 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2021-05-21 17:39:50,279 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2021-05-21 17:39:50,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:39:50,955 INFO L93 Difference]: Finished difference Result 3731 states and 9495 transitions. [2021-05-21 17:39:50,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 17:39:50,955 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:39:50,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:39:50,958 INFO L225 Difference]: With dead ends: 3731 [2021-05-21 17:39:50,958 INFO L226 Difference]: Without dead ends: 3511 [2021-05-21 17:39:50,958 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 4382.3ms TimeCoverageRelationStatistics Valid=723, Invalid=3699, Unknown=0, NotChecked=0, Total=4422 [2021-05-21 17:39:50,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3511 states. [2021-05-21 17:39:50,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3511 to 3261. [2021-05-21 17:39:50,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3261 states, 3260 states have (on average 2.603680981595092) internal successors, (8488), 3260 states have internal predecessors, (8488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:50,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3261 states to 3261 states and 8488 transitions. [2021-05-21 17:39:50,986 INFO L78 Accepts]: Start accepts. Automaton has 3261 states and 8488 transitions. Word has length 120 [2021-05-21 17:39:50,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:39:50,986 INFO L482 AbstractCegarLoop]: Abstraction has 3261 states and 8488 transitions. [2021-05-21 17:39:50,986 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:50,986 INFO L276 IsEmpty]: Start isEmpty. Operand 3261 states and 8488 transitions. [2021-05-21 17:39:50,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:39:50,989 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:39:50,989 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, 1] [2021-05-21 17:39:50,989 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2021-05-21 17:39:50,989 INFO L430 AbstractCegarLoop]: === Iteration 368 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:39:50,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:39:50,989 INFO L82 PathProgramCache]: Analyzing trace with hash 90759333, now seen corresponding path program 14 times [2021-05-21 17:39:50,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:39:50,989 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371700101] [2021-05-21 17:39:50,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:39:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:39:52,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:39:52,225 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:39:52,225 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371700101] [2021-05-21 17:39:52,225 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371700101] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:39:52,225 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:39:52,225 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:39:52,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385237982] [2021-05-21 17:39:52,225 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:39:52,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:39:52,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:39:52,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:39:52,225 INFO L87 Difference]: Start difference. First operand 3261 states and 8488 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:53,140 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-05-21 17:39:53,327 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 71 [2021-05-21 17:39:53,716 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 75 [2021-05-21 17:39:53,941 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 80 [2021-05-21 17:39:54,205 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 84 [2021-05-21 17:39:54,533 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-05-21 17:39:54,978 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 90 [2021-05-21 17:39:55,454 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 93 [2021-05-21 17:39:55,757 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 97 [2021-05-21 17:39:57,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:39:57,115 INFO L93 Difference]: Finished difference Result 3598 states and 9215 transitions. [2021-05-21 17:39:57,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-21 17:39:57,115 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:39:57,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:39:57,118 INFO L225 Difference]: With dead ends: 3598 [2021-05-21 17:39:57,118 INFO L226 Difference]: Without dead ends: 3451 [2021-05-21 17:39:57,118 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 731 ImplicationChecksByTransitivity, 4821.2ms TimeCoverageRelationStatistics Valid=786, Invalid=3770, Unknown=0, NotChecked=0, Total=4556 [2021-05-21 17:39:57,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3451 states. [2021-05-21 17:39:57,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3451 to 3263. [2021-05-21 17:39:57,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3263 states, 3262 states have (on average 2.6030042918454934) internal successors, (8491), 3262 states have internal predecessors, (8491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:57,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3263 states to 3263 states and 8491 transitions. [2021-05-21 17:39:57,147 INFO L78 Accepts]: Start accepts. Automaton has 3263 states and 8491 transitions. Word has length 120 [2021-05-21 17:39:57,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:39:57,147 INFO L482 AbstractCegarLoop]: Abstraction has 3263 states and 8491 transitions. [2021-05-21 17:39:57,147 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:57,147 INFO L276 IsEmpty]: Start isEmpty. Operand 3263 states and 8491 transitions. [2021-05-21 17:39:57,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:39:57,150 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:39:57,150 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, 1] [2021-05-21 17:39:57,150 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2021-05-21 17:39:57,150 INFO L430 AbstractCegarLoop]: === Iteration 369 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:39:57,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:39:57,150 INFO L82 PathProgramCache]: Analyzing trace with hash 187392421, now seen corresponding path program 15 times [2021-05-21 17:39:57,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:39:57,150 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761826027] [2021-05-21 17:39:57,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:39:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:39:58,017 INFO 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 17:39:58,017 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:39:58,017 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761826027] [2021-05-21 17:39:58,017 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761826027] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:39:58,017 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:39:58,017 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:39:58,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191099402] [2021-05-21 17:39:58,018 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:39:58,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:39:58,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:39:58,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:39:58,018 INFO L87 Difference]: Start difference. First operand 3263 states and 8491 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:39:58,916 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-05-21 17:39:59,075 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-05-21 17:39:59,436 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2021-05-21 17:39:59,627 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-05-21 17:39:59,842 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 80 [2021-05-21 17:40:00,118 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 84 [2021-05-21 17:40:00,511 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 86 [2021-05-21 17:40:00,930 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 89 [2021-05-21 17:40:02,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:40:02,323 INFO L93 Difference]: Finished difference Result 3607 states and 9235 transitions. [2021-05-21 17:40:02,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 17:40:02,323 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:40:02,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:40:02,326 INFO L225 Difference]: With dead ends: 3607 [2021-05-21 17:40:02,326 INFO L226 Difference]: Without dead ends: 3433 [2021-05-21 17:40:02,327 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 3886.1ms TimeCoverageRelationStatistics Valid=741, Invalid=3681, Unknown=0, NotChecked=0, Total=4422 [2021-05-21 17:40:02,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3433 states. [2021-05-21 17:40:02,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3433 to 3249. [2021-05-21 17:40:02,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3249 states, 3248 states have (on average 2.605911330049261) internal successors, (8464), 3248 states have internal predecessors, (8464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:02,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3249 states to 3249 states and 8464 transitions. [2021-05-21 17:40:02,356 INFO L78 Accepts]: Start accepts. Automaton has 3249 states and 8464 transitions. Word has length 120 [2021-05-21 17:40:02,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:40:02,356 INFO L482 AbstractCegarLoop]: Abstraction has 3249 states and 8464 transitions. [2021-05-21 17:40:02,356 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:02,356 INFO L276 IsEmpty]: Start isEmpty. Operand 3249 states and 8464 transitions. [2021-05-21 17:40:02,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:40:02,359 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:40:02,359 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:02,359 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2021-05-21 17:40:02,359 INFO L430 AbstractCegarLoop]: === Iteration 370 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:40:02,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:40:02,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1582854969, now seen corresponding path program 16 times [2021-05-21 17:40:02,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:40:02,359 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607677904] [2021-05-21 17:40:02,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:40:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:40:03,638 INFO 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 17:40:03,638 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:40:03,638 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607677904] [2021-05-21 17:40:03,638 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607677904] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:40:03,638 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:40:03,638 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:40:03,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640274709] [2021-05-21 17:40:03,639 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:40:03,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:40:03,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:40:03,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:40:03,639 INFO L87 Difference]: Start difference. First operand 3249 states and 8464 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:04,602 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-05-21 17:40:04,795 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 71 [2021-05-21 17:40:05,185 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 75 [2021-05-21 17:40:05,427 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 80 [2021-05-21 17:40:05,690 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 84 [2021-05-21 17:40:06,026 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-05-21 17:40:06,699 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 91 [2021-05-21 17:40:07,014 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 95 [2021-05-21 17:40:07,390 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 97 [2021-05-21 17:40:08,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:40:08,508 INFO L93 Difference]: Finished difference Result 3639 states and 9285 transitions. [2021-05-21 17:40:08,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-05-21 17:40:08,509 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:40:08,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:40:08,511 INFO L225 Difference]: With dead ends: 3639 [2021-05-21 17:40:08,511 INFO L226 Difference]: Without dead ends: 3452 [2021-05-21 17:40:08,511 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 4617.4ms TimeCoverageRelationStatistics Valid=724, Invalid=3436, Unknown=0, NotChecked=0, Total=4160 [2021-05-21 17:40:08,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3452 states. [2021-05-21 17:40:08,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3452 to 3258. [2021-05-21 17:40:08,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3258 states, 3257 states have (on average 2.6033159349094257) internal successors, (8479), 3257 states have internal predecessors, (8479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:08,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3258 states to 3258 states and 8479 transitions. [2021-05-21 17:40:08,540 INFO L78 Accepts]: Start accepts. Automaton has 3258 states and 8479 transitions. Word has length 120 [2021-05-21 17:40:08,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:40:08,540 INFO L482 AbstractCegarLoop]: Abstraction has 3258 states and 8479 transitions. [2021-05-21 17:40:08,540 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:08,540 INFO L276 IsEmpty]: Start isEmpty. Operand 3258 states and 8479 transitions. [2021-05-21 17:40:08,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:40:08,542 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:40:08,542 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:08,542 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2021-05-21 17:40:08,542 INFO L430 AbstractCegarLoop]: === Iteration 371 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:40:08,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:40:08,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1930991739, now seen corresponding path program 17 times [2021-05-21 17:40:08,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:40:08,543 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123430177] [2021-05-21 17:40:08,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:40:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:40:09,781 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 17:40:09,781 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:40:09,781 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123430177] [2021-05-21 17:40:09,781 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123430177] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:40:09,781 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:40:09,781 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:40:09,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380333236] [2021-05-21 17:40:09,782 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:40:09,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:40:09,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:40:09,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:40:09,782 INFO L87 Difference]: Start difference. First operand 3258 states and 8479 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:10,743 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-05-21 17:40:10,933 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 71 [2021-05-21 17:40:11,335 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 75 [2021-05-21 17:40:11,566 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 80 [2021-05-21 17:40:11,834 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 84 [2021-05-21 17:40:12,176 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88 [2021-05-21 17:40:12,866 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 91 [2021-05-21 17:40:13,183 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 93 [2021-05-21 17:40:13,522 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 97 [2021-05-21 17:40:13,787 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-05-21 17:40:14,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:40:14,901 INFO L93 Difference]: Finished difference Result 3627 states and 9263 transitions. [2021-05-21 17:40:14,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-21 17:40:14,902 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:40:14,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:40:14,904 INFO L225 Difference]: With dead ends: 3627 [2021-05-21 17:40:14,904 INFO L226 Difference]: Without dead ends: 3447 [2021-05-21 17:40:14,904 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 698 ImplicationChecksByTransitivity, 4857.5ms TimeCoverageRelationStatistics Valid=762, Invalid=3660, Unknown=0, NotChecked=0, Total=4422 [2021-05-21 17:40:14,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2021-05-21 17:40:14,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 3261. [2021-05-21 17:40:14,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3261 states, 3260 states have (on average 2.602147239263804) internal successors, (8483), 3260 states have internal predecessors, (8483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:14,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3261 states to 3261 states and 8483 transitions. [2021-05-21 17:40:14,934 INFO L78 Accepts]: Start accepts. Automaton has 3261 states and 8483 transitions. Word has length 120 [2021-05-21 17:40:14,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:40:14,934 INFO L482 AbstractCegarLoop]: Abstraction has 3261 states and 8483 transitions. [2021-05-21 17:40:14,934 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:14,934 INFO L276 IsEmpty]: Start isEmpty. Operand 3261 states and 8483 transitions. [2021-05-21 17:40:14,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:40:14,936 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:40:14,936 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:14,936 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable370 [2021-05-21 17:40:14,936 INFO L430 AbstractCegarLoop]: === Iteration 372 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:40:14,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:40:14,937 INFO L82 PathProgramCache]: Analyzing trace with hash 116921113, now seen corresponding path program 18 times [2021-05-21 17:40:14,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:40:14,937 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174096244] [2021-05-21 17:40:14,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:40:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:40:15,803 INFO 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 17:40:15,804 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:40:15,804 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174096244] [2021-05-21 17:40:15,804 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174096244] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:40:15,804 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:40:15,804 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:40:15,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901664118] [2021-05-21 17:40:15,804 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:40:15,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:40:15,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:40:15,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:40:15,804 INFO L87 Difference]: Start difference. First operand 3261 states and 8483 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:16,881 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-05-21 17:40:17,246 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2021-05-21 17:40:17,454 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-05-21 17:40:17,676 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 80 [2021-05-21 17:40:17,966 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 84 [2021-05-21 17:40:18,611 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 87 [2021-05-21 17:40:18,878 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 89 [2021-05-21 17:40:20,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:40:20,191 INFO L93 Difference]: Finished difference Result 3638 states and 9288 transitions. [2021-05-21 17:40:20,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-21 17:40:20,191 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:40:20,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:40:20,194 INFO L225 Difference]: With dead ends: 3638 [2021-05-21 17:40:20,194 INFO L226 Difference]: Without dead ends: 3395 [2021-05-21 17:40:20,194 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 3779.5ms TimeCoverageRelationStatistics Valid=720, Invalid=3570, Unknown=0, NotChecked=0, Total=4290 [2021-05-21 17:40:20,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3395 states. [2021-05-21 17:40:20,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3395 to 3215. [2021-05-21 17:40:20,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3215 states, 3214 states have (on average 2.6008089607965155) internal successors, (8359), 3214 states have internal predecessors, (8359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:20,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 8359 transitions. [2021-05-21 17:40:20,223 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 8359 transitions. Word has length 120 [2021-05-21 17:40:20,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:40:20,224 INFO L482 AbstractCegarLoop]: Abstraction has 3215 states and 8359 transitions. [2021-05-21 17:40:20,224 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:20,224 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 8359 transitions. [2021-05-21 17:40:20,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:40:20,226 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:40:20,226 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:20,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable371 [2021-05-21 17:40:20,226 INFO L430 AbstractCegarLoop]: === Iteration 373 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:40:20,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:40:20,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1833061803, now seen corresponding path program 19 times [2021-05-21 17:40:20,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:40:20,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525646587] [2021-05-21 17:40:20,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:40:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:40:21,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:40:21,087 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:40:21,087 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525646587] [2021-05-21 17:40:21,087 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525646587] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:40:21,087 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:40:21,087 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:40:21,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306584978] [2021-05-21 17:40:21,088 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:40:21,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:40:21,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:40:21,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1103, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:40:21,088 INFO L87 Difference]: Start difference. First operand 3215 states and 8359 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:22,152 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 67 [2021-05-21 17:40:22,506 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 71 [2021-05-21 17:40:22,699 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-05-21 17:40:22,919 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-05-21 17:40:23,288 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 81 [2021-05-21 17:40:23,672 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2021-05-21 17:40:23,975 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 89 [2021-05-21 17:40:25,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:40:25,758 INFO L93 Difference]: Finished difference Result 4127 states and 10508 transitions. [2021-05-21 17:40:25,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-05-21 17:40:25,758 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:40:25,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:40:25,761 INFO L225 Difference]: With dead ends: 4127 [2021-05-21 17:40:25,761 INFO L226 Difference]: Without dead ends: 3861 [2021-05-21 17:40:25,762 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 812 ImplicationChecksByTransitivity, 4105.1ms TimeCoverageRelationStatistics Valid=816, Invalid=4014, Unknown=0, NotChecked=0, Total=4830 [2021-05-21 17:40:25,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3861 states. [2021-05-21 17:40:25,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3861 to 3467. [2021-05-21 17:40:25,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3467 states, 3466 states have (on average 2.591748413156376) internal successors, (8983), 3466 states have internal predecessors, (8983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:25,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3467 states to 3467 states and 8983 transitions. [2021-05-21 17:40:25,794 INFO L78 Accepts]: Start accepts. Automaton has 3467 states and 8983 transitions. Word has length 120 [2021-05-21 17:40:25,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:40:25,794 INFO L482 AbstractCegarLoop]: Abstraction has 3467 states and 8983 transitions. [2021-05-21 17:40:25,794 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:25,794 INFO L276 IsEmpty]: Start isEmpty. Operand 3467 states and 8983 transitions. [2021-05-21 17:40:25,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:40:25,796 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:40:25,796 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, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 17:40:25,796 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable372 [2021-05-21 17:40:25,796 INFO L430 AbstractCegarLoop]: === Iteration 374 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:40:25,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:40:25,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1963928467, now seen corresponding path program 20 times [2021-05-21 17:40:25,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:40:25,797 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524360518] [2021-05-21 17:40:25,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:40:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:40:27,015 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 17:40:27,016 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:40:27,016 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524360518] [2021-05-21 17:40:27,016 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524360518] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:40:27,016 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:40:27,016 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:40:27,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602854259] [2021-05-21 17:40:27,016 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:40:27,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:40:27,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:40:27,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:40:27,017 INFO L87 Difference]: Start difference. First operand 3467 states and 8983 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:27,964 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2021-05-21 17:40:28,152 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 70 [2021-05-21 17:40:28,539 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 74 [2021-05-21 17:40:28,772 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 79 [2021-05-21 17:40:29,046 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 83 [2021-05-21 17:40:29,486 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 85 [2021-05-21 17:40:29,928 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 89 [2021-05-21 17:40:30,271 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 93 [2021-05-21 17:40:30,575 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-05-21 17:40:32,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:40:32,233 INFO L93 Difference]: Finished difference Result 3958 states and 10051 transitions. [2021-05-21 17:40:32,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-05-21 17:40:32,233 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:40:32,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:40:32,237 INFO L225 Difference]: With dead ends: 3958 [2021-05-21 17:40:32,237 INFO L226 Difference]: Without dead ends: 3825 [2021-05-21 17:40:32,237 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 841 ImplicationChecksByTransitivity, 4932.4ms TimeCoverageRelationStatistics Valid=820, Invalid=4150, Unknown=0, NotChecked=0, Total=4970 [2021-05-21 17:40:32,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3825 states. [2021-05-21 17:40:32,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3825 to 3431. [2021-05-21 17:40:32,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3431 states, 3430 states have (on average 2.5909620991253646) internal successors, (8887), 3430 states have internal predecessors, (8887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:32,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3431 states to 3431 states and 8887 transitions. [2021-05-21 17:40:32,270 INFO L78 Accepts]: Start accepts. Automaton has 3431 states and 8887 transitions. Word has length 120 [2021-05-21 17:40:32,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:40:32,270 INFO L482 AbstractCegarLoop]: Abstraction has 3431 states and 8887 transitions. [2021-05-21 17:40:32,270 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:32,271 INFO L276 IsEmpty]: Start isEmpty. Operand 3431 states and 8887 transitions. [2021-05-21 17:40:32,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:40:32,273 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:40:32,273 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, 1] [2021-05-21 17:40:32,273 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable373 [2021-05-21 17:40:32,273 INFO L430 AbstractCegarLoop]: === Iteration 375 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:40:32,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:40:32,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1899619589, now seen corresponding path program 21 times [2021-05-21 17:40:32,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:40:32,274 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757164749] [2021-05-21 17:40:32,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:40:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:40:33,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:40:33,166 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:40:33,166 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757164749] [2021-05-21 17:40:33,167 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757164749] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:40:33,167 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:40:33,167 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:40:33,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727355492] [2021-05-21 17:40:33,167 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:40:33,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:40:33,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:40:33,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:40:33,167 INFO L87 Difference]: Start difference. First operand 3431 states and 8887 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:34,301 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 67 [2021-05-21 17:40:34,685 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 71 [2021-05-21 17:40:34,884 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-05-21 17:40:35,112 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-05-21 17:40:35,551 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 81 [2021-05-21 17:40:35,951 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2021-05-21 17:40:36,251 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 89 [2021-05-21 17:40:37,162 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-05-21 17:40:38,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:40:38,200 INFO L93 Difference]: Finished difference Result 3888 states and 9898 transitions. [2021-05-21 17:40:38,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-21 17:40:38,200 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:40:38,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:40:38,204 INFO L225 Difference]: With dead ends: 3888 [2021-05-21 17:40:38,204 INFO L226 Difference]: Without dead ends: 3575 [2021-05-21 17:40:38,204 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 770 ImplicationChecksByTransitivity, 4153.5ms TimeCoverageRelationStatistics Valid=787, Invalid=3905, Unknown=0, NotChecked=0, Total=4692 [2021-05-21 17:40:38,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3575 states. [2021-05-21 17:40:38,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3575 to 3263. [2021-05-21 17:40:38,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3263 states, 3262 states have (on average 2.599325567136726) internal successors, (8479), 3262 states have internal predecessors, (8479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:38,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3263 states to 3263 states and 8479 transitions. [2021-05-21 17:40:38,235 INFO L78 Accepts]: Start accepts. Automaton has 3263 states and 8479 transitions. Word has length 120 [2021-05-21 17:40:38,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:40:38,235 INFO L482 AbstractCegarLoop]: Abstraction has 3263 states and 8479 transitions. [2021-05-21 17:40:38,235 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:38,235 INFO L276 IsEmpty]: Start isEmpty. Operand 3263 states and 8479 transitions. [2021-05-21 17:40:38,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:40:38,238 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:40:38,238 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:38,238 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable374 [2021-05-21 17:40:38,238 INFO L430 AbstractCegarLoop]: === Iteration 376 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:40:38,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:40:38,238 INFO L82 PathProgramCache]: Analyzing trace with hash -991728873, now seen corresponding path program 22 times [2021-05-21 17:40:38,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:40:38,238 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917747886] [2021-05-21 17:40:38,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:40:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:40:39,365 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 17:40:39,365 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:40:39,365 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917747886] [2021-05-21 17:40:39,365 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917747886] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:40:39,365 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:40:39,366 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:40:39,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153470481] [2021-05-21 17:40:39,366 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:40:39,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:40:39,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:40:39,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:40:39,366 INFO L87 Difference]: Start difference. First operand 3263 states and 8479 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:40,308 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2021-05-21 17:40:40,486 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 68 [2021-05-21 17:40:40,860 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 72 [2021-05-21 17:40:41,073 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 77 [2021-05-21 17:40:41,323 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 82 [2021-05-21 17:40:41,744 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 84 [2021-05-21 17:40:42,161 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 89 [2021-05-21 17:40:42,486 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 93 [2021-05-21 17:40:43,211 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 96 [2021-05-21 17:40:43,371 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2021-05-21 17:40:44,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:40:44,463 INFO L93 Difference]: Finished difference Result 3668 states and 9378 transitions. [2021-05-21 17:40:44,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-21 17:40:44,464 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:40:44,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:40:44,467 INFO L225 Difference]: With dead ends: 3668 [2021-05-21 17:40:44,467 INFO L226 Difference]: Without dead ends: 3509 [2021-05-21 17:40:44,467 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 754 ImplicationChecksByTransitivity, 4769.6ms TimeCoverageRelationStatistics Valid=813, Invalid=3879, Unknown=0, NotChecked=0, Total=4692 [2021-05-21 17:40:44,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3509 states. [2021-05-21 17:40:44,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3509 to 3251. [2021-05-21 17:40:44,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3251 states, 3250 states have (on average 2.6015384615384614) internal successors, (8455), 3250 states have internal predecessors, (8455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:44,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3251 states to 3251 states and 8455 transitions. [2021-05-21 17:40:44,497 INFO L78 Accepts]: Start accepts. Automaton has 3251 states and 8455 transitions. Word has length 120 [2021-05-21 17:40:44,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:40:44,497 INFO L482 AbstractCegarLoop]: Abstraction has 3251 states and 8455 transitions. [2021-05-21 17:40:44,497 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:44,497 INFO L276 IsEmpty]: Start isEmpty. Operand 3251 states and 8455 transitions. [2021-05-21 17:40:44,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:40:44,499 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:40:44,499 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:44,499 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable375 [2021-05-21 17:40:44,500 INFO L430 AbstractCegarLoop]: === Iteration 377 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:40:44,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:40:44,500 INFO L82 PathProgramCache]: Analyzing trace with hash 103382219, now seen corresponding path program 23 times [2021-05-21 17:40:44,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:40:44,500 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866127042] [2021-05-21 17:40:44,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:40:44,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:40:45,678 INFO 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 17:40:45,678 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:40:45,678 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866127042] [2021-05-21 17:40:45,678 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866127042] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:40:45,678 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:40:45,679 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:40:45,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168099860] [2021-05-21 17:40:45,679 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:40:45,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:40:45,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:40:45,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=1103, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:40:45,679 INFO L87 Difference]: Start difference. First operand 3251 states and 8455 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:46,649 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2021-05-21 17:40:46,842 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 70 [2021-05-21 17:40:47,238 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 74 [2021-05-21 17:40:47,480 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 79 [2021-05-21 17:40:47,745 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 83 [2021-05-21 17:40:48,177 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 85 [2021-05-21 17:40:48,619 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 89 [2021-05-21 17:40:49,174 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2021-05-21 17:40:50,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:40:50,752 INFO L93 Difference]: Finished difference Result 4247 states and 10794 transitions. [2021-05-21 17:40:50,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-05-21 17:40:50,753 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:40:50,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:40:50,755 INFO L225 Difference]: With dead ends: 4247 [2021-05-21 17:40:50,755 INFO L226 Difference]: Without dead ends: 3981 [2021-05-21 17:40:50,755 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 4649.2ms TimeCoverageRelationStatistics Valid=793, Invalid=4037, Unknown=0, NotChecked=0, Total=4830 [2021-05-21 17:40:50,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3981 states. [2021-05-21 17:40:50,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3981 to 3515. [2021-05-21 17:40:50,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3515 states, 3514 states have (on average 2.5939100739897554) internal successors, (9115), 3514 states have internal predecessors, (9115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:50,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3515 states to 3515 states and 9115 transitions. [2021-05-21 17:40:50,786 INFO L78 Accepts]: Start accepts. Automaton has 3515 states and 9115 transitions. Word has length 120 [2021-05-21 17:40:50,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:40:50,786 INFO L482 AbstractCegarLoop]: Abstraction has 3515 states and 9115 transitions. [2021-05-21 17:40:50,786 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:50,786 INFO L276 IsEmpty]: Start isEmpty. Operand 3515 states and 9115 transitions. [2021-05-21 17:40:50,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:40:50,789 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:40:50,789 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:40:50,789 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable376 [2021-05-21 17:40:50,789 INFO L430 AbstractCegarLoop]: === Iteration 378 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:40:50,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:40:50,789 INFO L82 PathProgramCache]: Analyzing trace with hash -27484445, now seen corresponding path program 24 times [2021-05-21 17:40:50,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:40:50,789 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813817173] [2021-05-21 17:40:50,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:40:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:40:51,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 17:40:51,614 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:40:51,614 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813817173] [2021-05-21 17:40:51,614 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813817173] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:40:51,614 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:40:51,614 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:40:51,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200355484] [2021-05-21 17:40:51,614 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:40:51,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:40:51,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:40:51,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:40:51,615 INFO L87 Difference]: Start difference. First operand 3515 states and 9115 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:52,708 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 67 [2021-05-21 17:40:53,081 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 71 [2021-05-21 17:40:53,276 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-05-21 17:40:53,511 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-05-21 17:40:53,932 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 81 [2021-05-21 17:40:54,319 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 85 [2021-05-21 17:40:56,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:40:56,483 INFO L93 Difference]: Finished difference Result 4078 states and 10337 transitions. [2021-05-21 17:40:56,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-05-21 17:40:56,484 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:40:56,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:40:56,487 INFO L225 Difference]: With dead ends: 4078 [2021-05-21 17:40:56,487 INFO L226 Difference]: Without dead ends: 3945 [2021-05-21 17:40:56,487 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 855 ImplicationChecksByTransitivity, 4019.5ms TimeCoverageRelationStatistics Valid=799, Invalid=4171, Unknown=0, NotChecked=0, Total=4970 [2021-05-21 17:40:56,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3945 states. [2021-05-21 17:40:56,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3945 to 3479. [2021-05-21 17:40:56,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3479 states, 3478 states have (on average 2.593156986774008) internal successors, (9019), 3478 states have internal predecessors, (9019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:56,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3479 states to 3479 states and 9019 transitions. [2021-05-21 17:40:56,520 INFO L78 Accepts]: Start accepts. Automaton has 3479 states and 9019 transitions. Word has length 120 [2021-05-21 17:40:56,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:40:56,520 INFO L482 AbstractCegarLoop]: Abstraction has 3479 states and 9019 transitions. [2021-05-21 17:40:56,520 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:56,520 INFO L276 IsEmpty]: Start isEmpty. Operand 3479 states and 9019 transitions. [2021-05-21 17:40:56,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:40:56,523 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:40:56,523 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, 1] [2021-05-21 17:40:56,523 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable377 [2021-05-21 17:40:56,523 INFO L430 AbstractCegarLoop]: === Iteration 379 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:40:56,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:40:56,523 INFO L82 PathProgramCache]: Analyzing trace with hash 36824433, now seen corresponding path program 25 times [2021-05-21 17:40:56,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:40:56,523 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008262469] [2021-05-21 17:40:56,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:40:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:40:57,708 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 17:40:57,708 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:40:57,708 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008262469] [2021-05-21 17:40:57,708 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008262469] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:40:57,708 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:40:57,709 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:40:57,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846241595] [2021-05-21 17:40:57,709 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:40:57,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:40:57,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:40:57,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:40:57,709 INFO L87 Difference]: Start difference. First operand 3479 states and 9019 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:40:58,645 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2021-05-21 17:40:58,834 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 70 [2021-05-21 17:40:59,234 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 74 [2021-05-21 17:40:59,463 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 79 [2021-05-21 17:40:59,737 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 83 [2021-05-21 17:41:00,158 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 85 [2021-05-21 17:41:00,598 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 89 [2021-05-21 17:41:01,152 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2021-05-21 17:41:01,680 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2021-05-21 17:41:01,818 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2021-05-21 17:41:02,041 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2021-05-21 17:41:02,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 17:41:02,718 INFO L93 Difference]: Finished difference Result 4008 states and 10184 transitions. [2021-05-21 17:41:02,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-05-21 17:41:02,718 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-05-21 17:41:02,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 17:41:02,721 INFO L225 Difference]: With dead ends: 4008 [2021-05-21 17:41:02,721 INFO L226 Difference]: Without dead ends: 3695 [2021-05-21 17:41:02,722 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 784 ImplicationChecksByTransitivity, 4654.9ms TimeCoverageRelationStatistics Valid=767, Invalid=3925, Unknown=0, NotChecked=0, Total=4692 [2021-05-21 17:41:02,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3695 states. [2021-05-21 17:41:02,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3695 to 3311. [2021-05-21 17:41:02,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3311 states, 3310 states have (on average 2.5870090634441087) internal successors, (8563), 3310 states have internal predecessors, (8563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:41:02,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3311 states to 3311 states and 8563 transitions. [2021-05-21 17:41:02,761 INFO L78 Accepts]: Start accepts. Automaton has 3311 states and 8563 transitions. Word has length 120 [2021-05-21 17:41:02,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 17:41:02,762 INFO L482 AbstractCegarLoop]: Abstraction has 3311 states and 8563 transitions. [2021-05-21 17:41:02,762 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:41:02,762 INFO L276 IsEmpty]: Start isEmpty. Operand 3311 states and 8563 transitions. [2021-05-21 17:41:02,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-05-21 17:41:02,764 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 17:41:02,764 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:41:02,764 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable378 [2021-05-21 17:41:02,764 INFO L430 AbstractCegarLoop]: === Iteration 380 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 17:41:02,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 17:41:02,765 INFO L82 PathProgramCache]: Analyzing trace with hash 2066781871, now seen corresponding path program 26 times [2021-05-21 17:41:02,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 17:41:02,765 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061742696] [2021-05-21 17:41:02,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 17:41:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 17:41:03,918 INFO 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 17:41:03,919 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 17:41:03,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061742696] [2021-05-21 17:41:03,919 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061742696] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 17:41:03,919 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 17:41:03,919 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-05-21 17:41:03,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493521307] [2021-05-21 17:41:03,919 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-05-21 17:41:03,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 17:41:03,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-05-21 17:41:03,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1104, Unknown=0, NotChecked=0, Total=1190 [2021-05-21 17:41:03,920 INFO L87 Difference]: Start difference. First operand 3311 states and 8563 transitions. Second operand has 35 states, 35 states have (on average 3.4285714285714284) internal successors, (120), 35 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 17:41:04,925 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-05-21 17:41:05,119 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 71 [2021-05-21 17:41:05,530 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 75 Received shutdown request... [2021-05-21 17:41:05,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-21 17:41:05,555 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable379 [2021-05-21 17:41:05,555 WARN L547 AbstractCegarLoop]: Verification canceled [2021-05-21 17:41:05,557 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 17:41:05,570 WARN L196 ceAbstractionStarter]: Timeout [2021-05-21 17:41:05,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 05:41:05 BasicIcfg [2021-05-21 17:41:05,570 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 17:41:05,571 INFO L168 Benchmark]: Toolchain (without parser) took 742479.50 ms. Allocated memory was 385.9 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 346.7 MB in the beginning and 1.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.0 GB. Max. memory is 16.0 GB. [2021-05-21 17:41:05,571 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 385.9 MB. Free memory is still 366.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 17:41:05,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 861.64 ms. Allocated memory is still 385.9 MB. Free memory was 346.4 MB in the beginning and 328.9 MB in the end (delta: 17.6 MB). Peak memory consumption was 80.7 MB. Max. memory is 16.0 GB. [2021-05-21 17:41:05,571 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.47 ms. Allocated memory is still 385.9 MB. Free memory was 328.9 MB in the beginning and 325.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-05-21 17:41:05,571 INFO L168 Benchmark]: Boogie Preprocessor took 44.59 ms. Allocated memory is still 385.9 MB. Free memory was 325.3 MB in the beginning and 322.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 17:41:05,571 INFO L168 Benchmark]: RCFGBuilder took 550.60 ms. Allocated memory is still 385.9 MB. Free memory was 322.6 MB in the beginning and 273.3 MB in the end (delta: 49.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.0 GB. [2021-05-21 17:41:05,571 INFO L168 Benchmark]: TraceAbstraction took 740962.13 ms. Allocated memory was 385.9 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 273.3 MB in the beginning and 1.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 948.1 MB. Max. memory is 16.0 GB. [2021-05-21 17:41:05,574 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 385.9 MB. Free memory is still 366.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 861.64 ms. Allocated memory is still 385.9 MB. Free memory was 346.4 MB in the beginning and 328.9 MB in the end (delta: 17.6 MB). Peak memory consumption was 80.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 56.47 ms. Allocated memory is still 385.9 MB. Free memory was 328.9 MB in the beginning and 325.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 44.59 ms. Allocated memory is still 385.9 MB. Free memory was 325.3 MB in the beginning and 322.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 550.60 ms. Allocated memory is still 385.9 MB. Free memory was 322.6 MB in the beginning and 273.3 MB in the end (delta: 49.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 740962.13 ms. Allocated memory was 385.9 MB in the beginning and 1.5 GB in the end (delta: 1.1 GB). Free memory was 273.3 MB in the beginning and 1.4 GB in the end (delta: -1.1 GB). Peak memory consumption was 948.1 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 (3311states) and FLOYD_HOARE automaton (currently 17 states, 35 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 48 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 (3311states) and FLOYD_HOARE automaton (currently 17 states, 35 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 48 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 (3311states) and FLOYD_HOARE automaton (currently 17 states, 35 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 48 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 (3311states) and FLOYD_HOARE automaton (currently 17 states, 35 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 48 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 (3311states) and FLOYD_HOARE automaton (currently 17 states, 35 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 48 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 (3311states) and FLOYD_HOARE automaton (currently 17 states, 35 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 48 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 178 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 740816.6ms, OverallIterations: 380, TraceHistogramMax: 1, EmptinessCheckTime: 1459.4ms, AutomataDifference: 573257.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 243.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 142107 SDtfs, 446448 SDslu, 842694 SDs, 0 SdLazy, 249904 SolverSat, 5312 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 112421.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14497 GetRequests, 1482 SyntacticMatches, 741 SemanticMatches, 12273 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39672 ImplicationChecksByTransitivity, 515507.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9357occurred in iteration=0, InterpolantAutomatonStates: 7000, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 35328.6ms AutomataMinimizationTime, 379 MinimizatonAttempts, 3395240 StatesRemovedByMinimization, 378 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 572.0ms SsaConstructionTime, 3577.7ms SatisfiabilityAnalysisTime, 124051.9ms InterpolantComputationTime, 43190 NumberOfCodeBlocks, 43190 NumberOfCodeBlocksAsserted, 380 NumberOfCheckSat, 42810 ConstructedInterpolants, 0 QuantifiedInterpolants, 326023 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 380 InterpolantComputations, 380 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown