/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-13 18:55:38,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-13 18:55:38,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-13 18:55:38,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-13 18:55:38,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-13 18:55:38,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-13 18:55:38,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-13 18:55:38,827 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-07-13 18:55:38,854 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-13 18:55:38,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-13 18:55:38,863 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-13 18:55:38,863 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-13 18:55:38,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-13 18:55:38,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-13 18:55:38,865 INFO L138 SettingsManager]: * Use SBE=true [2021-07-13 18:55:38,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-13 18:55:38,865 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-13 18:55:38,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-13 18:55:38,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-13 18:55:38,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-13 18:55:38,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-13 18:55:38,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-13 18:55:38,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-13 18:55:38,867 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-13 18:55:38,867 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-13 18:55:38,867 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-13 18:55:38,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-13 18:55:38,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-13 18:55:38,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-13 18:55:38,867 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-13 18:55:38,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-13 18:55:38,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 18:55:38,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-13 18:55:38,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-13 18:55:38,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-13 18:55:38,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-13 18:55:38,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-13 18:55:38,868 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-13 18:55:38,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-13 18:55:38,868 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-13 18:55:39,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-13 18:55:39,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-13 18:55:39,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-13 18:55:39,125 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-13 18:55:39,131 INFO L275 PluginConnector]: CDTParser initialized [2021-07-13 18:55:39,132 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-07-13 18:55:39,176 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dab92eae5/392e02d642ae4e1980322292064f72ce/FLAGbbb382138 [2021-07-13 18:55:39,699 INFO L306 CDTParser]: Found 1 translation units. [2021-07-13 18:55:39,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-07-13 18:55:39,717 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dab92eae5/392e02d642ae4e1980322292064f72ce/FLAGbbb382138 [2021-07-13 18:55:40,161 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dab92eae5/392e02d642ae4e1980322292064f72ce [2021-07-13 18:55:40,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-13 18:55:40,165 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-13 18:55:40,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-13 18:55:40,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-13 18:55:40,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-13 18:55:40,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:55:40" (1/1) ... [2021-07-13 18:55:40,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15030be6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40, skipping insertion in model container [2021-07-13 18:55:40,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:55:40" (1/1) ... [2021-07-13 18:55:40,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-13 18:55:40,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-13 18:55:40,769 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2021-07-13 18:55:40,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:55:40,810 INFO L203 MainTranslator]: Completed pre-run [2021-07-13 18:55:40,842 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2021-07-13 18:55:40,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:55:40,925 INFO L208 MainTranslator]: Completed translation [2021-07-13 18:55:40,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40 WrapperNode [2021-07-13 18:55:40,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-13 18:55:40,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-13 18:55:40,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-13 18:55:40,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-13 18:55:40,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40" (1/1) ... [2021-07-13 18:55:40,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40" (1/1) ... [2021-07-13 18:55:40,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-13 18:55:40,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-13 18:55:40,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-13 18:55:40,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-13 18:55:40,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40" (1/1) ... [2021-07-13 18:55:40,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40" (1/1) ... [2021-07-13 18:55:41,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40" (1/1) ... [2021-07-13 18:55:41,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40" (1/1) ... [2021-07-13 18:55:41,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40" (1/1) ... [2021-07-13 18:55:41,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40" (1/1) ... [2021-07-13 18:55:41,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40" (1/1) ... [2021-07-13 18:55:41,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-13 18:55:41,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-13 18:55:41,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-13 18:55:41,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-13 18:55:41,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 18:55:41,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-13 18:55:41,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-13 18:55:41,099 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-07-13 18:55:41,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-07-13 18:55:41,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-13 18:55:41,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-13 18:55:41,099 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-07-13 18:55:41,099 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-07-13 18:55:41,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-13 18:55:41,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-13 18:55:41,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-13 18:55:41,101 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-13 18:55:41,601 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-13 18:55:41,601 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-07-13 18:55:41,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:55:41 BoogieIcfgContainer [2021-07-13 18:55:41,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-13 18:55:41,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-13 18:55:41,604 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-13 18:55:41,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-13 18:55:41,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:55:40" (1/3) ... [2021-07-13 18:55:41,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca201b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:55:41, skipping insertion in model container [2021-07-13 18:55:41,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:40" (2/3) ... [2021-07-13 18:55:41,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca201b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:55:41, skipping insertion in model container [2021-07-13 18:55:41,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:55:41" (3/3) ... [2021-07-13 18:55:41,607 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2021-07-13 18:55:41,611 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-13 18:55:41,611 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-13 18:55:41,611 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-07-13 18:55:41,611 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-13 18:55:41,631 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,631 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,631 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,631 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,632 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,632 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,632 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,632 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,632 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,632 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,632 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,632 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,633 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,633 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,633 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,633 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,633 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,633 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,633 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,633 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,633 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,633 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,634 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,634 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,634 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,634 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,634 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,634 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,634 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,634 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,634 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,634 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,634 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,635 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,635 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,635 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,635 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,635 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,635 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,635 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,635 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,635 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,635 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,636 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,636 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,636 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,636 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,636 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,636 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,636 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,636 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,636 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,636 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,636 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,637 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,637 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,637 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,637 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,637 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,637 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,637 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,637 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,637 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,637 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,637 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,638 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,638 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,638 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,638 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,638 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,638 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,638 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,638 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,638 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,638 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,638 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,638 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,639 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,639 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,639 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,639 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,639 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,639 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,639 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,639 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,639 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,639 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,639 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,639 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,640 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,640 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,640 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,640 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,640 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,640 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,640 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,640 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,640 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,640 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,641 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,641 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,641 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,641 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,641 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,641 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,641 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,641 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,641 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,641 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,642 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,642 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,642 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,642 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,642 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,642 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,642 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,644 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,644 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,644 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,644 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,644 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,644 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,644 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,644 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,644 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,644 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,648 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,648 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,648 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,648 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,648 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,648 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,648 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,648 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,648 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,649 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:41,654 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-13 18:55:41,669 INFO L255 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-07-13 18:55:41,682 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 18:55:41,682 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 18:55:41,682 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 18:55:41,682 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 18:55:41,682 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 18:55:41,682 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 18:55:41,682 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 18:55:41,682 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 18:55:41,690 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 166 places, 170 transitions, 362 flow [2021-07-13 18:55:41,842 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8174 states, 8164 states have (on average 2.8350073493385595) internal successors, (23145), 8173 states have internal predecessors, (23145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:41,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 8174 states, 8164 states have (on average 2.8350073493385595) internal successors, (23145), 8173 states have internal predecessors, (23145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:41,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-07-13 18:55:41,871 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:41,871 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:41,872 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:41,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:41,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1624038893, now seen corresponding path program 1 times [2021-07-13 18:55:41,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:41,881 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048941614] [2021-07-13 18:55:41,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:42,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:42,182 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:42,182 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048941614] [2021-07-13 18:55:42,182 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048941614] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:42,183 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:42,183 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:55:42,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629844088] [2021-07-13 18:55:42,186 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:55:42,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:42,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:55:42,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:55:42,220 INFO L87 Difference]: Start difference. First operand has 8174 states, 8164 states have (on average 2.8350073493385595) internal successors, (23145), 8173 states have internal predecessors, (23145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:42,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:42,465 INFO L93 Difference]: Finished difference Result 7776 states and 21622 transitions. [2021-07-13 18:55:42,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-13 18:55:42,467 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-07-13 18:55:42,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:42,503 INFO L225 Difference]: With dead ends: 7776 [2021-07-13 18:55:42,503 INFO L226 Difference]: Without dead ends: 6398 [2021-07-13 18:55:42,504 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 52.0ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-13 18:55:42,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6398 states. [2021-07-13 18:55:42,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6398 to 6397. [2021-07-13 18:55:42,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6397 states, 6390 states have (on average 2.769170579029734) internal successors, (17695), 6396 states have internal predecessors, (17695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:42,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6397 states to 6397 states and 17695 transitions. [2021-07-13 18:55:42,759 INFO L78 Accepts]: Start accepts. Automaton has 6397 states and 17695 transitions. Word has length 36 [2021-07-13 18:55:42,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:42,759 INFO L482 AbstractCegarLoop]: Abstraction has 6397 states and 17695 transitions. [2021-07-13 18:55:42,759 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:42,760 INFO L276 IsEmpty]: Start isEmpty. Operand 6397 states and 17695 transitions. [2021-07-13 18:55:42,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-07-13 18:55:42,760 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:42,760 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:42,761 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-13 18:55:42,761 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:42,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:42,761 INFO L82 PathProgramCache]: Analyzing trace with hash -652027726, now seen corresponding path program 1 times [2021-07-13 18:55:42,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:42,762 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079444882] [2021-07-13 18:55:42,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:42,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:42,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:42,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079444882] [2021-07-13 18:55:42,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079444882] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:42,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:42,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:55:42,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326528618] [2021-07-13 18:55:42,838 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:55:42,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:42,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:55:42,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:55:42,839 INFO L87 Difference]: Start difference. First operand 6397 states and 17695 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:43,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:43,015 INFO L93 Difference]: Finished difference Result 6399 states and 17697 transitions. [2021-07-13 18:55:43,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-13 18:55:43,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-07-13 18:55:43,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:43,041 INFO L225 Difference]: With dead ends: 6399 [2021-07-13 18:55:43,042 INFO L226 Difference]: Without dead ends: 6399 [2021-07-13 18:55:43,042 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 91.7ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-13 18:55:43,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6399 states. [2021-07-13 18:55:43,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6399 to 6395. [2021-07-13 18:55:43,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6395 states, 6389 states have (on average 2.7692909688527156) internal successors, (17693), 6394 states have internal predecessors, (17693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:43,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6395 states to 6395 states and 17693 transitions. [2021-07-13 18:55:43,213 INFO L78 Accepts]: Start accepts. Automaton has 6395 states and 17693 transitions. Word has length 42 [2021-07-13 18:55:43,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:43,213 INFO L482 AbstractCegarLoop]: Abstraction has 6395 states and 17693 transitions. [2021-07-13 18:55:43,213 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:43,267 INFO L276 IsEmpty]: Start isEmpty. Operand 6395 states and 17693 transitions. [2021-07-13 18:55:43,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-13 18:55:43,268 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:43,268 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:43,269 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-13 18:55:43,269 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:43,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:43,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1629089851, now seen corresponding path program 1 times [2021-07-13 18:55:43,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:43,270 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430518677] [2021-07-13 18:55:43,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:43,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:43,471 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:43,471 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430518677] [2021-07-13 18:55:43,472 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430518677] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:43,472 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:43,472 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:55:43,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698701416] [2021-07-13 18:55:43,472 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:55:43,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:43,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:55:43,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:55:43,473 INFO L87 Difference]: Start difference. First operand 6395 states and 17693 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:43,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:43,741 INFO L93 Difference]: Finished difference Result 9382 states and 25923 transitions. [2021-07-13 18:55:43,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 18:55:43,742 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-07-13 18:55:43,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:43,776 INFO L225 Difference]: With dead ends: 9382 [2021-07-13 18:55:43,776 INFO L226 Difference]: Without dead ends: 9382 [2021-07-13 18:55:43,777 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 76.6ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:55:43,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9382 states. [2021-07-13 18:55:44,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9382 to 7177. [2021-07-13 18:55:44,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7177 states, 7172 states have (on average 2.7711935303959843) internal successors, (19875), 7176 states have internal predecessors, (19875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:44,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7177 states to 7177 states and 19875 transitions. [2021-07-13 18:55:44,040 INFO L78 Accepts]: Start accepts. Automaton has 7177 states and 19875 transitions. Word has length 60 [2021-07-13 18:55:44,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:44,040 INFO L482 AbstractCegarLoop]: Abstraction has 7177 states and 19875 transitions. [2021-07-13 18:55:44,041 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:44,041 INFO L276 IsEmpty]: Start isEmpty. Operand 7177 states and 19875 transitions. [2021-07-13 18:55:44,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-13 18:55:44,043 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:44,043 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:44,043 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-13 18:55:44,044 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:44,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:44,044 INFO L82 PathProgramCache]: Analyzing trace with hash 157318948, now seen corresponding path program 1 times [2021-07-13 18:55:44,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:44,044 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913786656] [2021-07-13 18:55:44,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:44,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:44,109 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:44,109 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913786656] [2021-07-13 18:55:44,109 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913786656] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:44,109 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:44,110 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-13 18:55:44,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181401393] [2021-07-13 18:55:44,110 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-13 18:55:44,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:44,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-13 18:55:44,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-13 18:55:44,111 INFO L87 Difference]: Start difference. First operand 7177 states and 19875 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:44,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:44,315 INFO L93 Difference]: Finished difference Result 10164 states and 27958 transitions. [2021-07-13 18:55:44,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-13 18:55:44,316 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-07-13 18:55:44,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:44,393 INFO L225 Difference]: With dead ends: 10164 [2021-07-13 18:55:44,393 INFO L226 Difference]: Without dead ends: 8547 [2021-07-13 18:55:44,394 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 52.2ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-07-13 18:55:44,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8547 states. [2021-07-13 18:55:44,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8547 to 8253. [2021-07-13 18:55:44,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8253 states, 8249 states have (on average 2.7752454843011276) internal successors, (22893), 8252 states have internal predecessors, (22893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:44,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8253 states to 8253 states and 22893 transitions. [2021-07-13 18:55:44,565 INFO L78 Accepts]: Start accepts. Automaton has 8253 states and 22893 transitions. Word has length 66 [2021-07-13 18:55:44,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:44,565 INFO L482 AbstractCegarLoop]: Abstraction has 8253 states and 22893 transitions. [2021-07-13 18:55:44,565 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:44,565 INFO L276 IsEmpty]: Start isEmpty. Operand 8253 states and 22893 transitions. [2021-07-13 18:55:44,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-07-13 18:55:44,572 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:44,572 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:44,572 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-13 18:55:44,573 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:44,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:44,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1636068507, now seen corresponding path program 1 times [2021-07-13 18:55:44,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:44,573 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750191801] [2021-07-13 18:55:44,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:44,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:44,623 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:44,623 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750191801] [2021-07-13 18:55:44,623 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750191801] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:44,623 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:44,623 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-13 18:55:44,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17143888] [2021-07-13 18:55:44,623 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-13 18:55:44,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:44,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-13 18:55:44,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-13 18:55:44,624 INFO L87 Difference]: Start difference. First operand 8253 states and 22893 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:44,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:44,654 INFO L93 Difference]: Finished difference Result 3039 states and 8148 transitions. [2021-07-13 18:55:44,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-13 18:55:44,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-07-13 18:55:44,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:44,659 INFO L225 Difference]: With dead ends: 3039 [2021-07-13 18:55:44,659 INFO L226 Difference]: Without dead ends: 3039 [2021-07-13 18:55:44,660 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 18.9ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-13 18:55:44,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3039 states. [2021-07-13 18:55:44,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3039 to 3039. [2021-07-13 18:55:44,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3039 states, 3037 states have (on average 2.6829107672044783) internal successors, (8148), 3038 states have internal predecessors, (8148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:44,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3039 states to 3039 states and 8148 transitions. [2021-07-13 18:55:44,708 INFO L78 Accepts]: Start accepts. Automaton has 3039 states and 8148 transitions. Word has length 80 [2021-07-13 18:55:44,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:44,708 INFO L482 AbstractCegarLoop]: Abstraction has 3039 states and 8148 transitions. [2021-07-13 18:55:44,708 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:44,709 INFO L276 IsEmpty]: Start isEmpty. Operand 3039 states and 8148 transitions. [2021-07-13 18:55:44,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:55:44,713 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:44,713 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:44,714 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-13 18:55:44,714 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:44,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:44,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1449889473, now seen corresponding path program 1 times [2021-07-13 18:55:44,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:44,715 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175245786] [2021-07-13 18:55:44,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:45,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:45,411 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:45,411 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175245786] [2021-07-13 18:55:45,412 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175245786] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:45,412 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:45,412 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 18:55:45,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142858997] [2021-07-13 18:55:45,412 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 18:55:45,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:45,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 18:55:45,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:55:45,413 INFO L87 Difference]: Start difference. First operand 3039 states and 8148 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:47,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:47,240 INFO L93 Difference]: Finished difference Result 5169 states and 13859 transitions. [2021-07-13 18:55:47,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 18:55:47,240 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:55:47,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:47,254 INFO L225 Difference]: With dead ends: 5169 [2021-07-13 18:55:47,254 INFO L226 Difference]: Without dead ends: 5119 [2021-07-13 18:55:47,255 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 1311.1ms TimeCoverageRelationStatistics Valid=430, Invalid=1550, Unknown=0, NotChecked=0, Total=1980 [2021-07-13 18:55:47,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5119 states. [2021-07-13 18:55:47,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5119 to 5029. [2021-07-13 18:55:47,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5029 states, 5027 states have (on average 2.709966182613885) internal successors, (13623), 5028 states have internal predecessors, (13623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:47,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5029 states to 5029 states and 13623 transitions. [2021-07-13 18:55:47,419 INFO L78 Accepts]: Start accepts. Automaton has 5029 states and 13623 transitions. Word has length 113 [2021-07-13 18:55:47,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:47,433 INFO L482 AbstractCegarLoop]: Abstraction has 5029 states and 13623 transitions. [2021-07-13 18:55:47,433 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:47,433 INFO L276 IsEmpty]: Start isEmpty. Operand 5029 states and 13623 transitions. [2021-07-13 18:55:47,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:55:47,462 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:47,462 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:47,462 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-13 18:55:47,462 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:47,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:47,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1737210557, now seen corresponding path program 1 times [2021-07-13 18:55:47,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:47,464 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562468268] [2021-07-13 18:55:47,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:47,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:47,832 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:47,832 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562468268] [2021-07-13 18:55:47,833 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562468268] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:47,833 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:47,833 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 18:55:47,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304988374] [2021-07-13 18:55:47,833 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 18:55:47,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:47,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 18:55:47,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:55:47,834 INFO L87 Difference]: Start difference. First operand 5029 states and 13623 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:48,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:48,536 INFO L93 Difference]: Finished difference Result 6888 states and 18056 transitions. [2021-07-13 18:55:48,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-13 18:55:48,537 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:55:48,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:48,550 INFO L225 Difference]: With dead ends: 6888 [2021-07-13 18:55:48,550 INFO L226 Difference]: Without dead ends: 6888 [2021-07-13 18:55:48,552 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 482.5ms TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2021-07-13 18:55:48,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6888 states. [2021-07-13 18:55:48,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6888 to 6238. [2021-07-13 18:55:48,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6238 states, 6236 states have (on average 2.6727068633739575) internal successors, (16667), 6237 states have internal predecessors, (16667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:48,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6238 states to 6238 states and 16667 transitions. [2021-07-13 18:55:48,706 INFO L78 Accepts]: Start accepts. Automaton has 6238 states and 16667 transitions. Word has length 113 [2021-07-13 18:55:48,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:48,706 INFO L482 AbstractCegarLoop]: Abstraction has 6238 states and 16667 transitions. [2021-07-13 18:55:48,706 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:48,706 INFO L276 IsEmpty]: Start isEmpty. Operand 6238 states and 16667 transitions. [2021-07-13 18:55:48,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:55:48,719 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:48,719 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:48,719 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-13 18:55:48,719 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:48,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:48,720 INFO L82 PathProgramCache]: Analyzing trace with hash 595826675, now seen corresponding path program 2 times [2021-07-13 18:55:48,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:48,720 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338927210] [2021-07-13 18:55:48,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:48,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:49,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:49,152 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:49,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338927210] [2021-07-13 18:55:49,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338927210] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:49,153 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:49,153 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:55:49,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097053709] [2021-07-13 18:55:49,154 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:55:49,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:49,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:55:49,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:55:49,155 INFO L87 Difference]: Start difference. First operand 6238 states and 16667 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:50,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:50,463 INFO L93 Difference]: Finished difference Result 8934 states and 23517 transitions. [2021-07-13 18:55:50,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 18:55:50,464 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:55:50,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:50,479 INFO L225 Difference]: With dead ends: 8934 [2021-07-13 18:55:50,480 INFO L226 Difference]: Without dead ends: 8934 [2021-07-13 18:55:50,480 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1058.1ms TimeCoverageRelationStatistics Valid=282, Invalid=710, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:55:50,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8934 states. [2021-07-13 18:55:50,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8934 to 6673. [2021-07-13 18:55:50,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6673 states, 6671 states have (on average 2.6871533503222906) internal successors, (17926), 6672 states have internal predecessors, (17926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:50,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6673 states to 6673 states and 17926 transitions. [2021-07-13 18:55:50,596 INFO L78 Accepts]: Start accepts. Automaton has 6673 states and 17926 transitions. Word has length 113 [2021-07-13 18:55:50,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:50,597 INFO L482 AbstractCegarLoop]: Abstraction has 6673 states and 17926 transitions. [2021-07-13 18:55:50,597 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:50,597 INFO L276 IsEmpty]: Start isEmpty. Operand 6673 states and 17926 transitions. [2021-07-13 18:55:50,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:55:50,607 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:50,608 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:50,608 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-13 18:55:50,608 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:50,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:50,608 INFO L82 PathProgramCache]: Analyzing trace with hash -602159759, now seen corresponding path program 3 times [2021-07-13 18:55:50,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:50,609 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073897926] [2021-07-13 18:55:50,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:50,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:50,877 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:50,877 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073897926] [2021-07-13 18:55:50,877 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073897926] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:50,877 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:50,877 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 18:55:50,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322065407] [2021-07-13 18:55:50,878 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 18:55:50,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:50,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 18:55:50,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:55:50,880 INFO L87 Difference]: Start difference. First operand 6673 states and 17926 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:51,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:51,616 INFO L93 Difference]: Finished difference Result 7870 states and 20519 transitions. [2021-07-13 18:55:51,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-13 18:55:51,616 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:55:51,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:51,632 INFO L225 Difference]: With dead ends: 7870 [2021-07-13 18:55:51,632 INFO L226 Difference]: Without dead ends: 7870 [2021-07-13 18:55:51,633 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 531.8ms TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2021-07-13 18:55:51,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7870 states. [2021-07-13 18:55:51,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7870 to 6756. [2021-07-13 18:55:51,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6756 states, 6754 states have (on average 2.6840390879478826) internal successors, (18128), 6755 states have internal predecessors, (18128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:51,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6756 states to 6756 states and 18128 transitions. [2021-07-13 18:55:51,762 INFO L78 Accepts]: Start accepts. Automaton has 6756 states and 18128 transitions. Word has length 113 [2021-07-13 18:55:51,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:51,762 INFO L482 AbstractCegarLoop]: Abstraction has 6756 states and 18128 transitions. [2021-07-13 18:55:51,762 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:51,762 INFO L276 IsEmpty]: Start isEmpty. Operand 6756 states and 18128 transitions. [2021-07-13 18:55:51,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:55:51,775 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:51,776 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:51,776 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-07-13 18:55:51,776 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:51,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:51,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1199987993, now seen corresponding path program 4 times [2021-07-13 18:55:51,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:51,776 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959186001] [2021-07-13 18:55:51,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:52,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:52,157 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:52,158 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959186001] [2021-07-13 18:55:52,158 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959186001] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:52,158 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:52,158 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:55:52,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143574952] [2021-07-13 18:55:52,158 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:55:52,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:52,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:55:52,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:55:52,159 INFO L87 Difference]: Start difference. First operand 6756 states and 18128 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:53,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:53,382 INFO L93 Difference]: Finished difference Result 8661 states and 22562 transitions. [2021-07-13 18:55:53,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:55:53,382 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:55:53,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:53,425 INFO L225 Difference]: With dead ends: 8661 [2021-07-13 18:55:53,425 INFO L226 Difference]: Without dead ends: 8661 [2021-07-13 18:55:53,441 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 980.8ms TimeCoverageRelationStatistics Valid=291, Invalid=765, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 18:55:53,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8661 states. [2021-07-13 18:55:53,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8661 to 6736. [2021-07-13 18:55:53,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6736 states, 6734 states have (on average 2.684585684585685) internal successors, (18078), 6735 states have internal predecessors, (18078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:53,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6736 states to 6736 states and 18078 transitions. [2021-07-13 18:55:53,741 INFO L78 Accepts]: Start accepts. Automaton has 6736 states and 18078 transitions. Word has length 113 [2021-07-13 18:55:53,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:53,741 INFO L482 AbstractCegarLoop]: Abstraction has 6736 states and 18078 transitions. [2021-07-13 18:55:53,741 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:53,741 INFO L276 IsEmpty]: Start isEmpty. Operand 6736 states and 18078 transitions. [2021-07-13 18:55:53,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:55:53,769 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:53,769 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:53,769 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-07-13 18:55:53,769 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:53,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:53,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1772154405, now seen corresponding path program 5 times [2021-07-13 18:55:53,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:53,770 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330614675] [2021-07-13 18:55:53,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:54,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:54,139 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:54,139 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330614675] [2021-07-13 18:55:54,139 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330614675] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:54,139 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:54,139 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 18:55:54,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489004422] [2021-07-13 18:55:54,140 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 18:55:54,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:54,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 18:55:54,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:55:54,141 INFO L87 Difference]: Start difference. First operand 6736 states and 18078 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:54,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:54,758 INFO L93 Difference]: Finished difference Result 7260 states and 19171 transitions. [2021-07-13 18:55:54,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 18:55:54,759 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:55:54,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:54,773 INFO L225 Difference]: With dead ends: 7260 [2021-07-13 18:55:54,773 INFO L226 Difference]: Without dead ends: 7260 [2021-07-13 18:55:54,774 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 486.2ms TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-07-13 18:55:54,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7260 states. [2021-07-13 18:55:54,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7260 to 6564. [2021-07-13 18:55:54,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6564 states, 6562 states have (on average 2.6927765925022857) internal successors, (17670), 6563 states have internal predecessors, (17670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:54,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6564 states to 6564 states and 17670 transitions. [2021-07-13 18:55:54,910 INFO L78 Accepts]: Start accepts. Automaton has 6564 states and 17670 transitions. Word has length 113 [2021-07-13 18:55:54,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:54,910 INFO L482 AbstractCegarLoop]: Abstraction has 6564 states and 17670 transitions. [2021-07-13 18:55:54,910 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:54,910 INFO L276 IsEmpty]: Start isEmpty. Operand 6564 states and 17670 transitions. [2021-07-13 18:55:54,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:55:54,923 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:54,923 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:54,923 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-07-13 18:55:54,923 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:54,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:54,924 INFO L82 PathProgramCache]: Analyzing trace with hash -144181387, now seen corresponding path program 6 times [2021-07-13 18:55:54,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:54,924 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103179540] [2021-07-13 18:55:54,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:55,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:55,262 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:55,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103179540] [2021-07-13 18:55:55,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103179540] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:55,262 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:55,262 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:55:55,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099390854] [2021-07-13 18:55:55,262 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:55:55,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:55,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:55:55,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:55:55,263 INFO L87 Difference]: Start difference. First operand 6564 states and 17670 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:56,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:56,390 INFO L93 Difference]: Finished difference Result 7717 states and 20100 transitions. [2021-07-13 18:55:56,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:55:56,391 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:55:56,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:56,401 INFO L225 Difference]: With dead ends: 7717 [2021-07-13 18:55:56,401 INFO L226 Difference]: Without dead ends: 7717 [2021-07-13 18:55:56,402 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 820.0ms TimeCoverageRelationStatistics Valid=280, Invalid=776, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 18:55:56,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7717 states. [2021-07-13 18:55:56,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7717 to 6414. [2021-07-13 18:55:56,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6414 states, 6412 states have (on average 2.7014971927635685) internal successors, (17322), 6413 states have internal predecessors, (17322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:56,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6414 states to 6414 states and 17322 transitions. [2021-07-13 18:55:56,543 INFO L78 Accepts]: Start accepts. Automaton has 6414 states and 17322 transitions. Word has length 113 [2021-07-13 18:55:56,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:56,543 INFO L482 AbstractCegarLoop]: Abstraction has 6414 states and 17322 transitions. [2021-07-13 18:55:56,543 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:56,543 INFO L276 IsEmpty]: Start isEmpty. Operand 6414 states and 17322 transitions. [2021-07-13 18:55:56,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:55:56,554 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:56,555 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:56,555 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-07-13 18:55:56,555 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:56,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:56,556 INFO L82 PathProgramCache]: Analyzing trace with hash -23799659, now seen corresponding path program 2 times [2021-07-13 18:55:56,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:56,556 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68890009] [2021-07-13 18:55:56,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:57,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:57,121 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:57,121 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68890009] [2021-07-13 18:55:57,121 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68890009] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:57,121 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:57,121 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 18:55:57,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429930408] [2021-07-13 18:55:57,122 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 18:55:57,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:57,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 18:55:57,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:55:57,123 INFO L87 Difference]: Start difference. First operand 6414 states and 17322 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:58,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:58,853 INFO L93 Difference]: Finished difference Result 11525 states and 31018 transitions. [2021-07-13 18:55:58,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 18:55:58,853 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:55:58,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:58,873 INFO L225 Difference]: With dead ends: 11525 [2021-07-13 18:55:58,873 INFO L226 Difference]: Without dead ends: 11450 [2021-07-13 18:55:58,874 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 1153.5ms TimeCoverageRelationStatistics Valid=421, Invalid=1471, Unknown=0, NotChecked=0, Total=1892 [2021-07-13 18:55:58,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11450 states. [2021-07-13 18:55:59,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11450 to 7725. [2021-07-13 18:55:59,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7725 states, 7723 states have (on average 2.710216237213518) internal successors, (20931), 7724 states have internal predecessors, (20931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:59,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7725 states to 7725 states and 20931 transitions. [2021-07-13 18:55:59,036 INFO L78 Accepts]: Start accepts. Automaton has 7725 states and 20931 transitions. Word has length 113 [2021-07-13 18:55:59,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:59,036 INFO L482 AbstractCegarLoop]: Abstraction has 7725 states and 20931 transitions. [2021-07-13 18:55:59,036 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:59,036 INFO L276 IsEmpty]: Start isEmpty. Operand 7725 states and 20931 transitions. [2021-07-13 18:55:59,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:55:59,048 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:59,049 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:55:59,049 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-07-13 18:55:59,049 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:59,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:59,049 INFO L82 PathProgramCache]: Analyzing trace with hash -311120743, now seen corresponding path program 7 times [2021-07-13 18:55:59,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:59,049 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343229933] [2021-07-13 18:55:59,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:59,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:59,519 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:59,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343229933] [2021-07-13 18:55:59,519 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343229933] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:59,519 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:59,519 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:55:59,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087039269] [2021-07-13 18:55:59,519 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:55:59,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:59,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:55:59,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:55:59,520 INFO L87 Difference]: Start difference. First operand 7725 states and 20931 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:01,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:01,203 INFO L93 Difference]: Finished difference Result 14795 states and 39010 transitions. [2021-07-13 18:56:01,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 18:56:01,204 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:01,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:01,227 INFO L225 Difference]: With dead ends: 14795 [2021-07-13 18:56:01,227 INFO L226 Difference]: Without dead ends: 14795 [2021-07-13 18:56:01,228 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1268.6ms TimeCoverageRelationStatistics Valid=281, Invalid=711, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:01,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14795 states. [2021-07-13 18:56:01,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14795 to 6777. [2021-07-13 18:56:01,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6777 states, 6775 states have (on average 2.699778597785978) internal successors, (18291), 6776 states have internal predecessors, (18291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:01,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6777 states to 6777 states and 18291 transitions. [2021-07-13 18:56:01,409 INFO L78 Accepts]: Start accepts. Automaton has 6777 states and 18291 transitions. Word has length 113 [2021-07-13 18:56:01,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:01,410 INFO L482 AbstractCegarLoop]: Abstraction has 6777 states and 18291 transitions. [2021-07-13 18:56:01,410 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:01,410 INFO L276 IsEmpty]: Start isEmpty. Operand 6777 states and 18291 transitions. [2021-07-13 18:56:01,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:01,422 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:01,422 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:01,422 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-07-13 18:56:01,423 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:01,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:01,423 INFO L82 PathProgramCache]: Analyzing trace with hash -2106935411, now seen corresponding path program 8 times [2021-07-13 18:56:01,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:01,423 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165294319] [2021-07-13 18:56:01,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:01,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:01,763 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:01,763 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165294319] [2021-07-13 18:56:01,763 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165294319] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:01,763 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:01,763 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:56:01,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442533515] [2021-07-13 18:56:01,763 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:56:01,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:01,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:56:01,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:56:01,764 INFO L87 Difference]: Start difference. First operand 6777 states and 18291 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:02,715 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-07-13 18:56:03,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:03,136 INFO L93 Difference]: Finished difference Result 13428 states and 35322 transitions. [2021-07-13 18:56:03,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:56:03,136 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:03,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:03,154 INFO L225 Difference]: With dead ends: 13428 [2021-07-13 18:56:03,154 INFO L226 Difference]: Without dead ends: 13428 [2021-07-13 18:56:03,155 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1037.6ms TimeCoverageRelationStatistics Valid=290, Invalid=766, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 18:56:03,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13428 states. [2021-07-13 18:56:03,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13428 to 6477. [2021-07-13 18:56:03,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6477 states, 6475 states have (on average 2.703938223938224) internal successors, (17508), 6476 states have internal predecessors, (17508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:03,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6477 states to 6477 states and 17508 transitions. [2021-07-13 18:56:03,306 INFO L78 Accepts]: Start accepts. Automaton has 6477 states and 17508 transitions. Word has length 113 [2021-07-13 18:56:03,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:03,307 INFO L482 AbstractCegarLoop]: Abstraction has 6477 states and 17508 transitions. [2021-07-13 18:56:03,307 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:03,307 INFO L276 IsEmpty]: Start isEmpty. Operand 6477 states and 17508 transitions. [2021-07-13 18:56:03,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:03,316 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:03,317 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:03,317 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-07-13 18:56:03,317 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:03,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:03,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1172822233, now seen corresponding path program 3 times [2021-07-13 18:56:03,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:03,317 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432579138] [2021-07-13 18:56:03,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:03,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:03,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:03,797 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:03,798 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432579138] [2021-07-13 18:56:03,798 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432579138] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:03,798 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:03,798 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 18:56:03,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124924018] [2021-07-13 18:56:03,798 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 18:56:03,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:03,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 18:56:03,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:56:03,799 INFO L87 Difference]: Start difference. First operand 6477 states and 17508 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:05,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:05,071 INFO L93 Difference]: Finished difference Result 12593 states and 33829 transitions. [2021-07-13 18:56:05,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-13 18:56:05,071 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:05,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:05,091 INFO L225 Difference]: With dead ends: 12593 [2021-07-13 18:56:05,091 INFO L226 Difference]: Without dead ends: 12518 [2021-07-13 18:56:05,092 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 922.2ms TimeCoverageRelationStatistics Valid=370, Invalid=1270, Unknown=0, NotChecked=0, Total=1640 [2021-07-13 18:56:05,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12518 states. [2021-07-13 18:56:05,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12518 to 7787. [2021-07-13 18:56:05,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7787 states, 7785 states have (on average 2.7116249197174054) internal successors, (21110), 7786 states have internal predecessors, (21110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:05,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7787 states to 7787 states and 21110 transitions. [2021-07-13 18:56:05,254 INFO L78 Accepts]: Start accepts. Automaton has 7787 states and 21110 transitions. Word has length 113 [2021-07-13 18:56:05,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:05,255 INFO L482 AbstractCegarLoop]: Abstraction has 7787 states and 21110 transitions. [2021-07-13 18:56:05,255 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:05,255 INFO L276 IsEmpty]: Start isEmpty. Operand 7787 states and 21110 transitions. [2021-07-13 18:56:05,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:05,265 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:05,266 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:05,266 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-07-13 18:56:05,266 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:05,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:05,267 INFO L82 PathProgramCache]: Analyzing trace with hash 885501149, now seen corresponding path program 9 times [2021-07-13 18:56:05,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:05,267 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144058316] [2021-07-13 18:56:05,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:05,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:05,730 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:05,730 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144058316] [2021-07-13 18:56:05,730 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144058316] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:05,730 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:05,730 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:56:05,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525757500] [2021-07-13 18:56:05,731 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:56:05,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:05,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:56:05,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:56:05,732 INFO L87 Difference]: Start difference. First operand 7787 states and 21110 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:07,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:07,688 INFO L93 Difference]: Finished difference Result 13725 states and 36011 transitions. [2021-07-13 18:56:07,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-13 18:56:07,688 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:07,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:07,712 INFO L225 Difference]: With dead ends: 13725 [2021-07-13 18:56:07,712 INFO L226 Difference]: Without dead ends: 13725 [2021-07-13 18:56:07,713 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1471.8ms TimeCoverageRelationStatistics Valid=428, Invalid=1054, Unknown=0, NotChecked=0, Total=1482 [2021-07-13 18:56:07,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13725 states. [2021-07-13 18:56:07,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13725 to 6736. [2021-07-13 18:56:07,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6736 states, 6734 states have (on average 2.7096822096822097) internal successors, (18247), 6735 states have internal predecessors, (18247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:07,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6736 states to 6736 states and 18247 transitions. [2021-07-13 18:56:07,864 INFO L78 Accepts]: Start accepts. Automaton has 6736 states and 18247 transitions. Word has length 113 [2021-07-13 18:56:07,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:07,864 INFO L482 AbstractCegarLoop]: Abstraction has 6736 states and 18247 transitions. [2021-07-13 18:56:07,864 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:07,864 INFO L276 IsEmpty]: Start isEmpty. Operand 6736 states and 18247 transitions. [2021-07-13 18:56:07,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:07,873 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:07,873 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:07,873 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-07-13 18:56:07,873 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:07,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:07,874 INFO L82 PathProgramCache]: Analyzing trace with hash -313376919, now seen corresponding path program 4 times [2021-07-13 18:56:07,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:07,874 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137088736] [2021-07-13 18:56:07,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:07,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:08,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:08,332 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:08,332 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137088736] [2021-07-13 18:56:08,332 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137088736] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:08,332 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:08,332 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 18:56:08,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407300228] [2021-07-13 18:56:08,333 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 18:56:08,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:08,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 18:56:08,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:56:08,333 INFO L87 Difference]: Start difference. First operand 6736 states and 18247 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:09,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:09,833 INFO L93 Difference]: Finished difference Result 11461 states and 30489 transitions. [2021-07-13 18:56:09,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-13 18:56:09,834 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:09,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:09,852 INFO L225 Difference]: With dead ends: 11461 [2021-07-13 18:56:09,852 INFO L226 Difference]: Without dead ends: 11314 [2021-07-13 18:56:09,853 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 1006.8ms TimeCoverageRelationStatistics Valid=376, Invalid=1346, Unknown=0, NotChecked=0, Total=1722 [2021-07-13 18:56:09,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11314 states. [2021-07-13 18:56:09,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11314 to 8170. [2021-07-13 18:56:09,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8170 states, 8168 states have (on average 2.7173114593535748) internal successors, (22195), 8169 states have internal predecessors, (22195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:09,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8170 states to 8170 states and 22195 transitions. [2021-07-13 18:56:09,997 INFO L78 Accepts]: Start accepts. Automaton has 8170 states and 22195 transitions. Word has length 113 [2021-07-13 18:56:09,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:09,997 INFO L482 AbstractCegarLoop]: Abstraction has 8170 states and 22195 transitions. [2021-07-13 18:56:09,998 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:09,998 INFO L276 IsEmpty]: Start isEmpty. Operand 8170 states and 22195 transitions. [2021-07-13 18:56:10,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:10,008 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:10,008 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:10,009 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-07-13 18:56:10,009 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:10,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:10,009 INFO L82 PathProgramCache]: Analyzing trace with hash -600698003, now seen corresponding path program 10 times [2021-07-13 18:56:10,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:10,009 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861414985] [2021-07-13 18:56:10,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:10,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:10,305 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:10,305 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861414985] [2021-07-13 18:56:10,305 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861414985] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:10,306 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:10,306 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:56:10,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019817664] [2021-07-13 18:56:10,306 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:56:10,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:10,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:56:10,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:56:10,307 INFO L87 Difference]: Start difference. First operand 8170 states and 22195 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:11,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:11,671 INFO L93 Difference]: Finished difference Result 11812 states and 30824 transitions. [2021-07-13 18:56:11,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:56:11,671 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:11,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:11,688 INFO L225 Difference]: With dead ends: 11812 [2021-07-13 18:56:11,689 INFO L226 Difference]: Without dead ends: 11812 [2021-07-13 18:56:11,689 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1069.4ms TimeCoverageRelationStatistics Valid=314, Invalid=808, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:56:11,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11812 states. [2021-07-13 18:56:11,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11812 to 7992. [2021-07-13 18:56:11,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7992 states, 7990 states have (on average 2.725782227784731) internal successors, (21779), 7991 states have internal predecessors, (21779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:11,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7992 states to 7992 states and 21779 transitions. [2021-07-13 18:56:11,841 INFO L78 Accepts]: Start accepts. Automaton has 7992 states and 21779 transitions. Word has length 113 [2021-07-13 18:56:11,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:11,841 INFO L482 AbstractCegarLoop]: Abstraction has 7992 states and 21779 transitions. [2021-07-13 18:56:11,841 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:11,841 INFO L276 IsEmpty]: Start isEmpty. Operand 7992 states and 21779 transitions. [2021-07-13 18:56:11,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:11,852 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:11,852 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:11,852 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-07-13 18:56:11,853 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:11,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:11,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1122257639, now seen corresponding path program 5 times [2021-07-13 18:56:11,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:11,853 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182745964] [2021-07-13 18:56:11,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:12,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:12,260 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:12,260 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182745964] [2021-07-13 18:56:12,260 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182745964] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:12,260 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:12,260 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:56:12,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817082368] [2021-07-13 18:56:12,261 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:56:12,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:12,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:56:12,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:56:12,261 INFO L87 Difference]: Start difference. First operand 7992 states and 21779 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:13,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:13,294 INFO L93 Difference]: Finished difference Result 10068 states and 27251 transitions. [2021-07-13 18:56:13,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-07-13 18:56:13,295 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:13,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:13,311 INFO L225 Difference]: With dead ends: 10068 [2021-07-13 18:56:13,311 INFO L226 Difference]: Without dead ends: 10068 [2021-07-13 18:56:13,312 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 803.3ms TimeCoverageRelationStatistics Valid=337, Invalid=995, Unknown=0, NotChecked=0, Total=1332 [2021-07-13 18:56:13,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10068 states. [2021-07-13 18:56:13,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10068 to 9084. [2021-07-13 18:56:13,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9084 states, 9082 states have (on average 2.735410702488439) internal successors, (24843), 9083 states have internal predecessors, (24843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:13,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9084 states to 9084 states and 24843 transitions. [2021-07-13 18:56:13,458 INFO L78 Accepts]: Start accepts. Automaton has 9084 states and 24843 transitions. Word has length 113 [2021-07-13 18:56:13,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:13,458 INFO L482 AbstractCegarLoop]: Abstraction has 9084 states and 24843 transitions. [2021-07-13 18:56:13,458 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:13,458 INFO L276 IsEmpty]: Start isEmpty. Operand 9084 states and 24843 transitions. [2021-07-13 18:56:13,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:13,472 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:13,472 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:13,472 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-07-13 18:56:13,472 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:13,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:13,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1409578723, now seen corresponding path program 11 times [2021-07-13 18:56:13,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:13,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140292640] [2021-07-13 18:56:13,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:13,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:13,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:13,814 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:13,814 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140292640] [2021-07-13 18:56:13,814 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140292640] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:13,814 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:13,814 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:56:13,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073931035] [2021-07-13 18:56:13,816 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:56:13,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:13,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:56:13,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:56:13,817 INFO L87 Difference]: Start difference. First operand 9084 states and 24843 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:14,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:14,951 INFO L93 Difference]: Finished difference Result 12446 states and 32499 transitions. [2021-07-13 18:56:14,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:56:14,951 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:14,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:14,971 INFO L225 Difference]: With dead ends: 12446 [2021-07-13 18:56:14,972 INFO L226 Difference]: Without dead ends: 12446 [2021-07-13 18:56:14,972 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 884.8ms TimeCoverageRelationStatistics Valid=279, Invalid=777, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 18:56:14,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12446 states. [2021-07-13 18:56:15,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12446 to 9088. [2021-07-13 18:56:15,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9088 states, 9086 states have (on average 2.7353070658155403) internal successors, (24853), 9087 states have internal predecessors, (24853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:15,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9088 states to 9088 states and 24853 transitions. [2021-07-13 18:56:15,284 INFO L78 Accepts]: Start accepts. Automaton has 9088 states and 24853 transitions. Word has length 113 [2021-07-13 18:56:15,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:15,284 INFO L482 AbstractCegarLoop]: Abstraction has 9088 states and 24853 transitions. [2021-07-13 18:56:15,284 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:15,284 INFO L276 IsEmpty]: Start isEmpty. Operand 9088 states and 24853 transitions. [2021-07-13 18:56:15,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:15,296 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:15,296 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:15,296 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-07-13 18:56:15,296 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:15,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:15,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1643771047, now seen corresponding path program 12 times [2021-07-13 18:56:15,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:15,297 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300004459] [2021-07-13 18:56:15,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:15,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:15,616 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:15,616 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300004459] [2021-07-13 18:56:15,616 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300004459] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:15,616 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:15,616 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:56:15,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715332652] [2021-07-13 18:56:15,617 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:56:15,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:15,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:56:15,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:56:15,618 INFO L87 Difference]: Start difference. First operand 9088 states and 24853 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:17,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:17,059 INFO L93 Difference]: Finished difference Result 12245 states and 32066 transitions. [2021-07-13 18:56:17,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:56:17,060 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:17,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:17,080 INFO L225 Difference]: With dead ends: 12245 [2021-07-13 18:56:17,080 INFO L226 Difference]: Without dead ends: 12245 [2021-07-13 18:56:17,080 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1057.0ms TimeCoverageRelationStatistics Valid=303, Invalid=819, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:56:17,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12245 states. [2021-07-13 18:56:17,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12245 to 9091. [2021-07-13 18:56:17,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9091 states, 9089 states have (on average 2.7353944328308946) internal successors, (24862), 9090 states have internal predecessors, (24862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:17,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9091 states to 9091 states and 24862 transitions. [2021-07-13 18:56:17,262 INFO L78 Accepts]: Start accepts. Automaton has 9091 states and 24862 transitions. Word has length 113 [2021-07-13 18:56:17,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:17,262 INFO L482 AbstractCegarLoop]: Abstraction has 9091 states and 24862 transitions. [2021-07-13 18:56:17,263 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:17,263 INFO L276 IsEmpty]: Start isEmpty. Operand 9091 states and 24862 transitions. [2021-07-13 18:56:17,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:17,274 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:17,274 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:17,274 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-07-13 18:56:17,275 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:17,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:17,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1186554581, now seen corresponding path program 13 times [2021-07-13 18:56:17,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:17,275 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140553968] [2021-07-13 18:56:17,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:17,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:17,582 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:17,582 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140553968] [2021-07-13 18:56:17,582 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140553968] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:17,582 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:17,582 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:56:17,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55188973] [2021-07-13 18:56:17,582 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:56:17,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:17,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:56:17,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:56:17,583 INFO L87 Difference]: Start difference. First operand 9091 states and 24862 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:18,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:18,545 INFO L93 Difference]: Finished difference Result 11277 states and 29582 transitions. [2021-07-13 18:56:18,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:56:18,545 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:18,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:18,563 INFO L225 Difference]: With dead ends: 11277 [2021-07-13 18:56:18,563 INFO L226 Difference]: Without dead ends: 11277 [2021-07-13 18:56:18,564 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 707.2ms TimeCoverageRelationStatistics Valid=268, Invalid=788, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 18:56:18,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11277 states. [2021-07-13 18:56:18,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11277 to 9067. [2021-07-13 18:56:18,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9067 states, 9065 states have (on average 2.7360176503033644) internal successors, (24802), 9066 states have internal predecessors, (24802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:18,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9067 states to 9067 states and 24802 transitions. [2021-07-13 18:56:18,770 INFO L78 Accepts]: Start accepts. Automaton has 9067 states and 24802 transitions. Word has length 113 [2021-07-13 18:56:18,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:18,770 INFO L482 AbstractCegarLoop]: Abstraction has 9067 states and 24802 transitions. [2021-07-13 18:56:18,770 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:18,770 INFO L276 IsEmpty]: Start isEmpty. Operand 9067 states and 24802 transitions. [2021-07-13 18:56:18,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:18,781 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:18,782 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:18,782 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-07-13 18:56:18,783 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:18,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:18,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1976423059, now seen corresponding path program 14 times [2021-07-13 18:56:18,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:18,784 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279104215] [2021-07-13 18:56:18,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:19,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:19,097 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:19,097 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279104215] [2021-07-13 18:56:19,097 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279104215] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:19,097 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:19,097 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:56:19,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127109154] [2021-07-13 18:56:19,097 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:56:19,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:19,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:56:19,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:56:19,098 INFO L87 Difference]: Start difference. First operand 9067 states and 24802 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:20,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:20,033 INFO L93 Difference]: Finished difference Result 11416 states and 29843 transitions. [2021-07-13 18:56:20,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:56:20,033 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:20,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:20,050 INFO L225 Difference]: With dead ends: 11416 [2021-07-13 18:56:20,050 INFO L226 Difference]: Without dead ends: 11416 [2021-07-13 18:56:20,051 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 727.0ms TimeCoverageRelationStatistics Valid=268, Invalid=788, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 18:56:20,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11416 states. [2021-07-13 18:56:20,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11416 to 9059. [2021-07-13 18:56:20,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9059 states, 9057 states have (on average 2.736226123440433) internal successors, (24782), 9058 states have internal predecessors, (24782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:20,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9059 states to 9059 states and 24782 transitions. [2021-07-13 18:56:20,213 INFO L78 Accepts]: Start accepts. Automaton has 9059 states and 24782 transitions. Word has length 113 [2021-07-13 18:56:20,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:20,213 INFO L482 AbstractCegarLoop]: Abstraction has 9059 states and 24782 transitions. [2021-07-13 18:56:20,213 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:20,213 INFO L276 IsEmpty]: Start isEmpty. Operand 9059 states and 24782 transitions. [2021-07-13 18:56:20,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:20,224 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:20,224 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:20,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-07-13 18:56:20,225 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:20,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:20,225 INFO L82 PathProgramCache]: Analyzing trace with hash 2084351913, now seen corresponding path program 15 times [2021-07-13 18:56:20,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:20,225 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288635175] [2021-07-13 18:56:20,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:20,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:20,547 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:20,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288635175] [2021-07-13 18:56:20,547 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288635175] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:20,547 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:20,547 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:56:20,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585914137] [2021-07-13 18:56:20,548 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:56:20,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:20,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:56:20,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:56:20,548 INFO L87 Difference]: Start difference. First operand 9059 states and 24782 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:21,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:21,668 INFO L93 Difference]: Finished difference Result 10971 states and 28895 transitions. [2021-07-13 18:56:21,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:56:21,669 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:21,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:21,682 INFO L225 Difference]: With dead ends: 10971 [2021-07-13 18:56:21,683 INFO L226 Difference]: Without dead ends: 10971 [2021-07-13 18:56:21,683 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 817.0ms TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:56:21,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10971 states. [2021-07-13 18:56:21,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10971 to 8942. [2021-07-13 18:56:21,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8942 states, 8940 states have (on average 2.7448545861297537) internal successors, (24539), 8941 states have internal predecessors, (24539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:21,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8942 states to 8942 states and 24539 transitions. [2021-07-13 18:56:21,847 INFO L78 Accepts]: Start accepts. Automaton has 8942 states and 24539 transitions. Word has length 113 [2021-07-13 18:56:21,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:21,847 INFO L482 AbstractCegarLoop]: Abstraction has 8942 states and 24539 transitions. [2021-07-13 18:56:21,848 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:21,848 INFO L276 IsEmpty]: Start isEmpty. Operand 8942 states and 24539 transitions. [2021-07-13 18:56:21,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:21,860 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:21,860 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:21,860 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-07-13 18:56:21,860 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:21,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:21,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1768443537, now seen corresponding path program 6 times [2021-07-13 18:56:21,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:21,861 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274027079] [2021-07-13 18:56:21,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:22,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:22,314 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:22,314 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274027079] [2021-07-13 18:56:22,314 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274027079] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:22,314 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:22,314 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 18:56:22,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367149539] [2021-07-13 18:56:22,315 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 18:56:22,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:22,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 18:56:22,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:56:22,316 INFO L87 Difference]: Start difference. First operand 8942 states and 24539 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:23,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:23,930 INFO L93 Difference]: Finished difference Result 13158 states and 35673 transitions. [2021-07-13 18:56:23,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-07-13 18:56:23,930 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:23,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:23,953 INFO L225 Difference]: With dead ends: 13158 [2021-07-13 18:56:23,953 INFO L226 Difference]: Without dead ends: 13083 [2021-07-13 18:56:23,954 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 1117.7ms TimeCoverageRelationStatistics Valid=446, Invalid=1446, Unknown=0, NotChecked=0, Total=1892 [2021-07-13 18:56:23,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13083 states. [2021-07-13 18:56:24,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13083 to 10142. [2021-07-13 18:56:24,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10142 states, 10140 states have (on average 2.7433925049309664) internal successors, (27818), 10141 states have internal predecessors, (27818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:24,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10142 states to 10142 states and 27818 transitions. [2021-07-13 18:56:24,138 INFO L78 Accepts]: Start accepts. Automaton has 10142 states and 27818 transitions. Word has length 113 [2021-07-13 18:56:24,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:24,138 INFO L482 AbstractCegarLoop]: Abstraction has 10142 states and 27818 transitions. [2021-07-13 18:56:24,138 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:24,138 INFO L276 IsEmpty]: Start isEmpty. Operand 10142 states and 27818 transitions. [2021-07-13 18:56:24,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:24,152 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:24,152 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:24,152 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-07-13 18:56:24,152 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:24,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:24,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1481122453, now seen corresponding path program 16 times [2021-07-13 18:56:24,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:24,153 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029482148] [2021-07-13 18:56:24,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:24,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:24,460 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:24,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029482148] [2021-07-13 18:56:24,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029482148] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:24,460 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:24,461 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:56:24,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571969487] [2021-07-13 18:56:24,461 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:56:24,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:24,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:56:24,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:56:24,461 INFO L87 Difference]: Start difference. First operand 10142 states and 27818 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:25,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:25,856 INFO L93 Difference]: Finished difference Result 12852 states and 34294 transitions. [2021-07-13 18:56:25,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 18:56:25,857 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:25,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:25,879 INFO L225 Difference]: With dead ends: 12852 [2021-07-13 18:56:25,879 INFO L226 Difference]: Without dead ends: 12852 [2021-07-13 18:56:25,879 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1137.5ms TimeCoverageRelationStatistics Valid=280, Invalid=712, Unknown=0, NotChecked=0, Total=992 [2021-07-13 18:56:25,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12852 states. [2021-07-13 18:56:26,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12852 to 9122. [2021-07-13 18:56:26,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9122 states, 9120 states have (on average 2.737061403508772) internal successors, (24962), 9121 states have internal predecessors, (24962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:26,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9122 states to 9122 states and 24962 transitions. [2021-07-13 18:56:26,042 INFO L78 Accepts]: Start accepts. Automaton has 9122 states and 24962 transitions. Word has length 113 [2021-07-13 18:56:26,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:26,042 INFO L482 AbstractCegarLoop]: Abstraction has 9122 states and 24962 transitions. [2021-07-13 18:56:26,042 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:26,042 INFO L276 IsEmpty]: Start isEmpty. Operand 9122 states and 24962 transitions. [2021-07-13 18:56:26,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:26,054 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:26,054 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:26,054 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-07-13 18:56:26,054 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:26,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:26,055 INFO L82 PathProgramCache]: Analyzing trace with hash -314692215, now seen corresponding path program 17 times [2021-07-13 18:56:26,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:26,055 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035647302] [2021-07-13 18:56:26,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:26,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:26,358 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:26,358 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035647302] [2021-07-13 18:56:26,358 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035647302] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:26,358 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:26,358 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:56:26,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703542182] [2021-07-13 18:56:26,358 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:56:26,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:26,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:56:26,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:56:26,359 INFO L87 Difference]: Start difference. First operand 9122 states and 24962 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:27,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:27,672 INFO L93 Difference]: Finished difference Result 12360 states and 33003 transitions. [2021-07-13 18:56:27,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:56:27,672 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:27,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:27,694 INFO L225 Difference]: With dead ends: 12360 [2021-07-13 18:56:27,694 INFO L226 Difference]: Without dead ends: 12360 [2021-07-13 18:56:27,695 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1035.8ms TimeCoverageRelationStatistics Valid=289, Invalid=767, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 18:56:27,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12360 states. [2021-07-13 18:56:27,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12360 to 8882. [2021-07-13 18:56:27,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8882 states, 8880 states have (on average 2.7431306306306307) internal successors, (24359), 8881 states have internal predecessors, (24359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:27,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8882 states to 8882 states and 24359 transitions. [2021-07-13 18:56:27,873 INFO L78 Accepts]: Start accepts. Automaton has 8882 states and 24359 transitions. Word has length 113 [2021-07-13 18:56:27,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:27,873 INFO L482 AbstractCegarLoop]: Abstraction has 8882 states and 24359 transitions. [2021-07-13 18:56:27,873 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:27,873 INFO L276 IsEmpty]: Start isEmpty. Operand 8882 states and 24359 transitions. [2021-07-13 18:56:27,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:27,886 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:27,886 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:27,886 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-07-13 18:56:27,886 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:27,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:27,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1329901867, now seen corresponding path program 7 times [2021-07-13 18:56:27,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:27,887 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495566808] [2021-07-13 18:56:27,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:28,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:28,493 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:28,493 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495566808] [2021-07-13 18:56:28,493 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495566808] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:28,493 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:28,493 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 18:56:28,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354934349] [2021-07-13 18:56:28,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 18:56:28,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:28,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 18:56:28,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:56:28,494 INFO L87 Difference]: Start difference. First operand 8882 states and 24359 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:29,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:29,767 INFO L93 Difference]: Finished difference Result 13355 states and 36299 transitions. [2021-07-13 18:56:29,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-13 18:56:29,768 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:29,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:29,792 INFO L225 Difference]: With dead ends: 13355 [2021-07-13 18:56:29,792 INFO L226 Difference]: Without dead ends: 13280 [2021-07-13 18:56:29,793 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 980.5ms TimeCoverageRelationStatistics Valid=391, Invalid=1249, Unknown=0, NotChecked=0, Total=1640 [2021-07-13 18:56:29,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13280 states. [2021-07-13 18:56:29,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13280 to 10192. [2021-07-13 18:56:29,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10192 states, 10190 states have (on average 2.74396467124632) internal successors, (27961), 10191 states have internal predecessors, (27961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:29,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10192 states to 10192 states and 27961 transitions. [2021-07-13 18:56:29,978 INFO L78 Accepts]: Start accepts. Automaton has 10192 states and 27961 transitions. Word has length 113 [2021-07-13 18:56:29,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:29,978 INFO L482 AbstractCegarLoop]: Abstraction has 10192 states and 27961 transitions. [2021-07-13 18:56:29,978 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:29,978 INFO L276 IsEmpty]: Start isEmpty. Operand 10192 states and 27961 transitions. [2021-07-13 18:56:29,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:29,991 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:29,991 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:29,991 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-07-13 18:56:29,992 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:29,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:29,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1617222951, now seen corresponding path program 18 times [2021-07-13 18:56:29,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:29,992 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142056926] [2021-07-13 18:56:29,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:30,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:30,275 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:30,275 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142056926] [2021-07-13 18:56:30,275 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142056926] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:30,275 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:30,275 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:56:30,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280569571] [2021-07-13 18:56:30,275 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:56:30,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:30,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:56:30,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:56:30,276 INFO L87 Difference]: Start difference. First operand 10192 states and 27961 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:32,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:32,406 INFO L93 Difference]: Finished difference Result 15493 states and 41020 transitions. [2021-07-13 18:56:32,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-13 18:56:32,406 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:32,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:32,428 INFO L225 Difference]: With dead ends: 15493 [2021-07-13 18:56:32,428 INFO L226 Difference]: Without dead ends: 15493 [2021-07-13 18:56:32,429 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 1656.5ms TimeCoverageRelationStatistics Valid=427, Invalid=1055, Unknown=0, NotChecked=0, Total=1482 [2021-07-13 18:56:32,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15493 states. [2021-07-13 18:56:32,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15493 to 9002. [2021-07-13 18:56:32,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9002 states, 9000 states have (on average 2.745222222222222) internal successors, (24707), 9001 states have internal predecessors, (24707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:32,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9002 states to 9002 states and 24707 transitions. [2021-07-13 18:56:32,627 INFO L78 Accepts]: Start accepts. Automaton has 9002 states and 24707 transitions. Word has length 113 [2021-07-13 18:56:32,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:32,627 INFO L482 AbstractCegarLoop]: Abstraction has 9002 states and 24707 transitions. [2021-07-13 18:56:32,628 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:32,628 INFO L276 IsEmpty]: Start isEmpty. Operand 9002 states and 24707 transitions. [2021-07-13 18:56:32,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:32,640 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:32,641 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:32,641 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-07-13 18:56:32,641 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:32,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:32,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1478866277, now seen corresponding path program 8 times [2021-07-13 18:56:32,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:32,641 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115063689] [2021-07-13 18:56:32,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:33,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:33,084 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:33,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115063689] [2021-07-13 18:56:33,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115063689] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:33,084 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:33,085 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 18:56:33,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061562879] [2021-07-13 18:56:33,085 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 18:56:33,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:33,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 18:56:33,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:56:33,086 INFO L87 Difference]: Start difference. First operand 9002 states and 24707 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:34,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:34,320 INFO L93 Difference]: Finished difference Result 11632 states and 31580 transitions. [2021-07-13 18:56:34,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-13 18:56:34,320 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:34,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:34,341 INFO L225 Difference]: With dead ends: 11632 [2021-07-13 18:56:34,341 INFO L226 Difference]: Without dead ends: 11522 [2021-07-13 18:56:34,342 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 894.9ms TimeCoverageRelationStatistics Valid=384, Invalid=1256, Unknown=0, NotChecked=0, Total=1640 [2021-07-13 18:56:34,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11522 states. [2021-07-13 18:56:34,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11522 to 9108. [2021-07-13 18:56:34,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9108 states, 9106 states have (on average 2.7358884252141444) internal successors, (24913), 9107 states have internal predecessors, (24913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:34,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9108 states to 9108 states and 24913 transitions. [2021-07-13 18:56:34,525 INFO L78 Accepts]: Start accepts. Automaton has 9108 states and 24913 transitions. Word has length 113 [2021-07-13 18:56:34,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:34,525 INFO L482 AbstractCegarLoop]: Abstraction has 9108 states and 24913 transitions. [2021-07-13 18:56:34,526 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:34,526 INFO L276 IsEmpty]: Start isEmpty. Operand 9108 states and 24913 transitions. [2021-07-13 18:56:34,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:34,538 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:34,538 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:34,538 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-07-13 18:56:34,538 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:34,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:34,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1191545193, now seen corresponding path program 19 times [2021-07-13 18:56:34,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:34,539 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100842338] [2021-07-13 18:56:34,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:34,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:34,828 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:34,828 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100842338] [2021-07-13 18:56:34,828 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100842338] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:34,828 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:34,829 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:56:34,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928397367] [2021-07-13 18:56:34,829 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:56:34,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:34,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:56:34,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:56:34,831 INFO L87 Difference]: Start difference. First operand 9108 states and 24913 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:36,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:36,311 INFO L93 Difference]: Finished difference Result 13486 states and 35754 transitions. [2021-07-13 18:56:36,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:56:36,311 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:36,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:36,334 INFO L225 Difference]: With dead ends: 13486 [2021-07-13 18:56:36,335 INFO L226 Difference]: Without dead ends: 13486 [2021-07-13 18:56:36,336 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1134.0ms TimeCoverageRelationStatistics Valid=313, Invalid=809, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:56:36,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13486 states. [2021-07-13 18:56:36,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13486 to 8882. [2021-07-13 18:56:36,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8882 states, 8880 states have (on average 2.7431306306306307) internal successors, (24359), 8881 states have internal predecessors, (24359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:36,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8882 states to 8882 states and 24359 transitions. [2021-07-13 18:56:36,510 INFO L78 Accepts]: Start accepts. Automaton has 8882 states and 24359 transitions. Word has length 113 [2021-07-13 18:56:36,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:36,510 INFO L482 AbstractCegarLoop]: Abstraction has 8882 states and 24359 transitions. [2021-07-13 18:56:36,511 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:36,511 INFO L276 IsEmpty]: Start isEmpty. Operand 8882 states and 24359 transitions. [2021-07-13 18:56:36,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:36,522 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:36,522 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:36,522 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-07-13 18:56:36,523 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:36,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:36,523 INFO L82 PathProgramCache]: Analyzing trace with hash 669985557, now seen corresponding path program 9 times [2021-07-13 18:56:36,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:36,523 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695059251] [2021-07-13 18:56:36,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:36,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:36,969 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:36,969 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695059251] [2021-07-13 18:56:36,969 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695059251] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:36,969 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:36,969 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 18:56:36,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340589047] [2021-07-13 18:56:36,969 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 18:56:36,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:36,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 18:56:36,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:56:36,970 INFO L87 Difference]: Start difference. First operand 8882 states and 24359 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:38,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:38,255 INFO L93 Difference]: Finished difference Result 11172 states and 30325 transitions. [2021-07-13 18:56:38,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-13 18:56:38,256 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:38,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:38,274 INFO L225 Difference]: With dead ends: 11172 [2021-07-13 18:56:38,274 INFO L226 Difference]: Without dead ends: 11097 [2021-07-13 18:56:38,276 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 917.5ms TimeCoverageRelationStatistics Valid=373, Invalid=1267, Unknown=0, NotChecked=0, Total=1640 [2021-07-13 18:56:38,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11097 states. [2021-07-13 18:56:38,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11097 to 9064. [2021-07-13 18:56:38,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9064 states, 9062 states have (on average 2.7352681527256677) internal successors, (24787), 9063 states have internal predecessors, (24787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:38,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9064 states to 9064 states and 24787 transitions. [2021-07-13 18:56:38,527 INFO L78 Accepts]: Start accepts. Automaton has 9064 states and 24787 transitions. Word has length 113 [2021-07-13 18:56:38,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:38,528 INFO L482 AbstractCegarLoop]: Abstraction has 9064 states and 24787 transitions. [2021-07-13 18:56:38,528 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:38,528 INFO L276 IsEmpty]: Start isEmpty. Operand 9064 states and 24787 transitions. [2021-07-13 18:56:38,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:38,539 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:38,540 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:38,540 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-07-13 18:56:38,540 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:38,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:38,540 INFO L82 PathProgramCache]: Analyzing trace with hash 382664473, now seen corresponding path program 20 times [2021-07-13 18:56:38,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:38,540 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022926047] [2021-07-13 18:56:38,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:38,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:38,830 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:38,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022926047] [2021-07-13 18:56:38,830 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022926047] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:38,830 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:38,830 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:56:38,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587973605] [2021-07-13 18:56:38,831 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:56:38,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:38,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:56:38,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:56:38,831 INFO L87 Difference]: Start difference. First operand 9064 states and 24787 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:40,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:40,139 INFO L93 Difference]: Finished difference Result 13192 states and 34915 transitions. [2021-07-13 18:56:40,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:56:40,140 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:40,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:40,162 INFO L225 Difference]: With dead ends: 13192 [2021-07-13 18:56:40,162 INFO L226 Difference]: Without dead ends: 13192 [2021-07-13 18:56:40,163 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 946.3ms TimeCoverageRelationStatistics Valid=278, Invalid=778, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 18:56:40,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13192 states. [2021-07-13 18:56:40,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13192 to 8884. [2021-07-13 18:56:40,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8884 states, 8882 states have (on average 2.743075883809953) internal successors, (24364), 8883 states have internal predecessors, (24364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:40,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8884 states to 8884 states and 24364 transitions. [2021-07-13 18:56:40,335 INFO L78 Accepts]: Start accepts. Automaton has 8884 states and 24364 transitions. Word has length 113 [2021-07-13 18:56:40,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:40,335 INFO L482 AbstractCegarLoop]: Abstraction has 8884 states and 24364 transitions. [2021-07-13 18:56:40,335 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:40,335 INFO L276 IsEmpty]: Start isEmpty. Operand 8884 states and 24364 transitions. [2021-07-13 18:56:40,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:40,347 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:40,347 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:40,347 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-07-13 18:56:40,347 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:40,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:40,347 INFO L82 PathProgramCache]: Analyzing trace with hash 435793233, now seen corresponding path program 10 times [2021-07-13 18:56:40,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:40,347 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187812633] [2021-07-13 18:56:40,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:40,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:40,789 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:40,789 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187812633] [2021-07-13 18:56:40,789 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187812633] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:40,789 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:40,789 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 18:56:40,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515500891] [2021-07-13 18:56:40,789 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 18:56:40,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:40,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 18:56:40,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:56:40,790 INFO L87 Difference]: Start difference. First operand 8884 states and 24364 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:42,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:42,228 INFO L93 Difference]: Finished difference Result 11457 states and 30997 transitions. [2021-07-13 18:56:42,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-13 18:56:42,229 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:42,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:42,245 INFO L225 Difference]: With dead ends: 11457 [2021-07-13 18:56:42,245 INFO L226 Difference]: Without dead ends: 11377 [2021-07-13 18:56:42,246 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 921.3ms TimeCoverageRelationStatistics Valid=414, Invalid=1392, Unknown=0, NotChecked=0, Total=1806 [2021-07-13 18:56:42,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11377 states. [2021-07-13 18:56:42,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11377 to 9074. [2021-07-13 18:56:42,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9074 states, 9072 states have (on average 2.73478835978836) internal successors, (24810), 9073 states have internal predecessors, (24810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:42,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9074 states to 9074 states and 24810 transitions. [2021-07-13 18:56:42,411 INFO L78 Accepts]: Start accepts. Automaton has 9074 states and 24810 transitions. Word has length 113 [2021-07-13 18:56:42,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:42,411 INFO L482 AbstractCegarLoop]: Abstraction has 9074 states and 24810 transitions. [2021-07-13 18:56:42,411 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:42,412 INFO L276 IsEmpty]: Start isEmpty. Operand 9074 states and 24810 transitions. [2021-07-13 18:56:42,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:42,424 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:42,424 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:42,424 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-07-13 18:56:42,424 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:42,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:42,424 INFO L82 PathProgramCache]: Analyzing trace with hash 148472149, now seen corresponding path program 21 times [2021-07-13 18:56:42,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:42,425 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506289329] [2021-07-13 18:56:42,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:42,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:42,716 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:42,716 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506289329] [2021-07-13 18:56:42,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506289329] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:42,719 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:42,719 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:56:42,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730439669] [2021-07-13 18:56:42,720 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:56:42,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:42,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:56:42,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:56:42,720 INFO L87 Difference]: Start difference. First operand 9074 states and 24810 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:44,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:44,120 INFO L93 Difference]: Finished difference Result 12912 states and 34293 transitions. [2021-07-13 18:56:44,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:56:44,121 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:44,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:44,143 INFO L225 Difference]: With dead ends: 12912 [2021-07-13 18:56:44,143 INFO L226 Difference]: Without dead ends: 12912 [2021-07-13 18:56:44,144 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1079.3ms TimeCoverageRelationStatistics Valid=302, Invalid=820, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:56:44,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12912 states. [2021-07-13 18:56:44,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12912 to 8883. [2021-07-13 18:56:44,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8883 states, 8881 states have (on average 2.7431595541042677) internal successors, (24362), 8882 states have internal predecessors, (24362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:44,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8883 states to 8883 states and 24362 transitions. [2021-07-13 18:56:44,314 INFO L78 Accepts]: Start accepts. Automaton has 8883 states and 24362 transitions. Word has length 113 [2021-07-13 18:56:44,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:44,314 INFO L482 AbstractCegarLoop]: Abstraction has 8883 states and 24362 transitions. [2021-07-13 18:56:44,314 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:44,314 INFO L276 IsEmpty]: Start isEmpty. Operand 8883 states and 24362 transitions. [2021-07-13 18:56:44,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:44,326 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:44,326 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:44,326 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-07-13 18:56:44,326 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:44,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:44,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1463467373, now seen corresponding path program 11 times [2021-07-13 18:56:44,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:44,333 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939913161] [2021-07-13 18:56:44,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:44,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:44,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:44,847 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:44,847 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939913161] [2021-07-13 18:56:44,847 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939913161] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:44,847 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:44,847 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 18:56:44,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570449380] [2021-07-13 18:56:44,848 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 18:56:44,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:44,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 18:56:44,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=333, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:56:44,849 INFO L87 Difference]: Start difference. First operand 8883 states and 24362 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:46,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:46,305 INFO L93 Difference]: Finished difference Result 13045 states and 35227 transitions. [2021-07-13 18:56:46,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-13 18:56:46,333 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:46,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:46,355 INFO L225 Difference]: With dead ends: 13045 [2021-07-13 18:56:46,356 INFO L226 Difference]: Without dead ends: 12970 [2021-07-13 18:56:46,357 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 1000.7ms TimeCoverageRelationStatistics Valid=393, Invalid=1247, Unknown=0, NotChecked=0, Total=1640 [2021-07-13 18:56:46,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12970 states. [2021-07-13 18:56:46,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12970 to 9053. [2021-07-13 18:56:46,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9053 states, 9051 states have (on average 2.7356093249364712) internal successors, (24760), 9052 states have internal predecessors, (24760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:46,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9053 states to 9053 states and 24760 transitions. [2021-07-13 18:56:46,528 INFO L78 Accepts]: Start accepts. Automaton has 9053 states and 24760 transitions. Word has length 113 [2021-07-13 18:56:46,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:46,528 INFO L482 AbstractCegarLoop]: Abstraction has 9053 states and 24760 transitions. [2021-07-13 18:56:46,528 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:46,528 INFO L276 IsEmpty]: Start isEmpty. Operand 9053 states and 24760 transitions. [2021-07-13 18:56:46,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:46,540 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:46,540 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:46,540 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-07-13 18:56:46,541 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:46,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:46,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1176146289, now seen corresponding path program 22 times [2021-07-13 18:56:46,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:46,541 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744064161] [2021-07-13 18:56:46,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:46,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:46,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:46,840 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:46,840 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744064161] [2021-07-13 18:56:46,840 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744064161] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:46,840 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:46,840 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:56:46,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096511684] [2021-07-13 18:56:46,841 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:56:46,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:46,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:56:46,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:56:46,842 INFO L87 Difference]: Start difference. First operand 9053 states and 24760 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:48,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:48,869 INFO L93 Difference]: Finished difference Result 12151 states and 32122 transitions. [2021-07-13 18:56:48,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 18:56:48,870 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:48,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:48,887 INFO L225 Difference]: With dead ends: 12151 [2021-07-13 18:56:48,887 INFO L226 Difference]: Without dead ends: 12151 [2021-07-13 18:56:48,888 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 1538.3ms TimeCoverageRelationStatistics Valid=462, Invalid=1178, Unknown=0, NotChecked=0, Total=1640 [2021-07-13 18:56:48,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12151 states. [2021-07-13 18:56:49,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12151 to 7920. [2021-07-13 18:56:49,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7920 states, 7918 states have (on average 2.7323819146249053) internal successors, (21635), 7919 states have internal predecessors, (21635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:49,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7920 states to 7920 states and 21635 transitions. [2021-07-13 18:56:49,037 INFO L78 Accepts]: Start accepts. Automaton has 7920 states and 21635 transitions. Word has length 113 [2021-07-13 18:56:49,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:49,037 INFO L482 AbstractCegarLoop]: Abstraction has 7920 states and 21635 transitions. [2021-07-13 18:56:49,037 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:49,037 INFO L276 IsEmpty]: Start isEmpty. Operand 7920 states and 21635 transitions. [2021-07-13 18:56:49,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:49,048 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:49,048 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:49,048 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-07-13 18:56:49,048 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:49,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:49,048 INFO L82 PathProgramCache]: Analyzing trace with hash -22731779, now seen corresponding path program 12 times [2021-07-13 18:56:49,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:49,049 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002482927] [2021-07-13 18:56:49,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:49,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:49,654 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:49,654 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002482927] [2021-07-13 18:56:49,654 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002482927] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:49,654 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:49,654 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 18:56:49,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176129379] [2021-07-13 18:56:49,655 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 18:56:49,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:49,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 18:56:49,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:56:49,655 INFO L87 Difference]: Start difference. First operand 7920 states and 21635 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:50,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:50,860 INFO L93 Difference]: Finished difference Result 11862 states and 31978 transitions. [2021-07-13 18:56:50,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-13 18:56:50,860 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:50,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:50,881 INFO L225 Difference]: With dead ends: 11862 [2021-07-13 18:56:50,881 INFO L226 Difference]: Without dead ends: 11752 [2021-07-13 18:56:50,882 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 982.7ms TimeCoverageRelationStatistics Valid=386, Invalid=1254, Unknown=0, NotChecked=0, Total=1640 [2021-07-13 18:56:50,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11752 states. [2021-07-13 18:56:51,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11752 to 8026. [2021-07-13 18:56:51,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8026 states, 8024 states have (on average 2.7219591226321036) internal successors, (21841), 8025 states have internal predecessors, (21841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:51,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8026 states to 8026 states and 21841 transitions. [2021-07-13 18:56:51,046 INFO L78 Accepts]: Start accepts. Automaton has 8026 states and 21841 transitions. Word has length 113 [2021-07-13 18:56:51,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:51,046 INFO L482 AbstractCegarLoop]: Abstraction has 8026 states and 21841 transitions. [2021-07-13 18:56:51,046 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:51,047 INFO L276 IsEmpty]: Start isEmpty. Operand 8026 states and 21841 transitions. [2021-07-13 18:56:51,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:51,057 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:51,057 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:51,057 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-07-13 18:56:51,057 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:51,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:51,058 INFO L82 PathProgramCache]: Analyzing trace with hash -310052863, now seen corresponding path program 23 times [2021-07-13 18:56:51,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:51,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984418628] [2021-07-13 18:56:51,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:51,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:51,393 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:51,393 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984418628] [2021-07-13 18:56:51,393 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984418628] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:51,393 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:51,393 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:56:51,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251064603] [2021-07-13 18:56:51,393 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:56:51,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:51,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:56:51,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:56:51,394 INFO L87 Difference]: Start difference. First operand 8026 states and 21841 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:53,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:53,454 INFO L93 Difference]: Finished difference Result 12633 states and 33163 transitions. [2021-07-13 18:56:53,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 18:56:53,455 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:53,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:53,476 INFO L225 Difference]: With dead ends: 12633 [2021-07-13 18:56:53,476 INFO L226 Difference]: Without dead ends: 12633 [2021-07-13 18:56:53,477 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 1475.3ms TimeCoverageRelationStatistics Valid=451, Invalid=1189, Unknown=0, NotChecked=0, Total=1640 [2021-07-13 18:56:53,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12633 states. [2021-07-13 18:56:53,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12633 to 7800. [2021-07-13 18:56:53,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7800 states, 7798 states have (on average 2.729802513464991) internal successors, (21287), 7799 states have internal predecessors, (21287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:53,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7800 states to 7800 states and 21287 transitions. [2021-07-13 18:56:53,639 INFO L78 Accepts]: Start accepts. Automaton has 7800 states and 21287 transitions. Word has length 113 [2021-07-13 18:56:53,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:53,639 INFO L482 AbstractCegarLoop]: Abstraction has 7800 states and 21287 transitions. [2021-07-13 18:56:53,639 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:53,639 INFO L276 IsEmpty]: Start isEmpty. Operand 7800 states and 21287 transitions. [2021-07-13 18:56:53,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:53,649 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:53,649 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:53,649 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-07-13 18:56:53,650 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:53,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:53,650 INFO L82 PathProgramCache]: Analyzing trace with hash 295817105, now seen corresponding path program 13 times [2021-07-13 18:56:53,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:53,650 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345903260] [2021-07-13 18:56:53,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:53,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:54,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:54,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:54,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345903260] [2021-07-13 18:56:54,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345903260] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:54,113 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:54,113 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 18:56:54,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650243578] [2021-07-13 18:56:54,113 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 18:56:54,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:54,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 18:56:54,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:56:54,114 INFO L87 Difference]: Start difference. First operand 7800 states and 21287 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:55,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:55,456 INFO L93 Difference]: Finished difference Result 11810 states and 31506 transitions. [2021-07-13 18:56:55,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-13 18:56:55,457 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:55,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:55,475 INFO L225 Difference]: With dead ends: 11810 [2021-07-13 18:56:55,476 INFO L226 Difference]: Without dead ends: 11632 [2021-07-13 18:56:55,477 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 927.6ms TimeCoverageRelationStatistics Valid=394, Invalid=1328, Unknown=0, NotChecked=0, Total=1722 [2021-07-13 18:56:55,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11632 states. [2021-07-13 18:56:55,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11632 to 7811. [2021-07-13 18:56:55,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7811 states, 7809 states have (on average 2.7150723524138813) internal successors, (21202), 7810 states have internal predecessors, (21202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:55,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7811 states to 7811 states and 21202 transitions. [2021-07-13 18:56:55,663 INFO L78 Accepts]: Start accepts. Automaton has 7811 states and 21202 transitions. Word has length 113 [2021-07-13 18:56:55,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:55,663 INFO L482 AbstractCegarLoop]: Abstraction has 7811 states and 21202 transitions. [2021-07-13 18:56:55,663 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:55,663 INFO L276 IsEmpty]: Start isEmpty. Operand 7811 states and 21202 transitions. [2021-07-13 18:56:55,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:55,671 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:55,671 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:55,672 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-07-13 18:56:55,672 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:55,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:55,672 INFO L82 PathProgramCache]: Analyzing trace with hash 8496021, now seen corresponding path program 24 times [2021-07-13 18:56:55,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:55,672 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621818498] [2021-07-13 18:56:55,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:55,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:55,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:55,943 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:55,943 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621818498] [2021-07-13 18:56:55,943 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621818498] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:55,943 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:55,943 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:56:55,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907459729] [2021-07-13 18:56:55,943 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:56:55,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:55,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:56:55,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:56:55,944 INFO L87 Difference]: Start difference. First operand 7811 states and 21202 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:57,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:57,213 INFO L93 Difference]: Finished difference Result 9818 states and 25923 transitions. [2021-07-13 18:56:57,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-13 18:56:57,213 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:57,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:57,228 INFO L225 Difference]: With dead ends: 9818 [2021-07-13 18:56:57,229 INFO L226 Difference]: Without dead ends: 9818 [2021-07-13 18:56:57,230 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1007.4ms TimeCoverageRelationStatistics Valid=325, Invalid=865, Unknown=0, NotChecked=0, Total=1190 [2021-07-13 18:56:57,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9818 states. [2021-07-13 18:56:57,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9818 to 7579. [2021-07-13 18:56:57,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7579 states, 7577 states have (on average 2.726276890589943) internal successors, (20657), 7578 states have internal predecessors, (20657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:57,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7579 states to 7579 states and 20657 transitions. [2021-07-13 18:56:57,376 INFO L78 Accepts]: Start accepts. Automaton has 7579 states and 20657 transitions. Word has length 113 [2021-07-13 18:56:57,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:57,376 INFO L482 AbstractCegarLoop]: Abstraction has 7579 states and 20657 transitions. [2021-07-13 18:56:57,376 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:57,376 INFO L276 IsEmpty]: Start isEmpty. Operand 7579 states and 20657 transitions. [2021-07-13 18:56:57,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:57,387 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:57,387 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:57,387 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-07-13 18:56:57,389 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:57,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:57,389 INFO L82 PathProgramCache]: Analyzing trace with hash -174789089, now seen corresponding path program 14 times [2021-07-13 18:56:57,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:57,389 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732752896] [2021-07-13 18:56:57,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:57,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:57,917 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:57,917 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732752896] [2021-07-13 18:56:57,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732752896] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:57,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:57,918 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-07-13 18:56:57,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587387054] [2021-07-13 18:56:57,918 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-13 18:56:57,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:57,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-13 18:56:57,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2021-07-13 18:56:57,918 INFO L87 Difference]: Start difference. First operand 7579 states and 20657 transitions. Second operand has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:59,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:56:59,172 INFO L93 Difference]: Finished difference Result 9264 states and 24805 transitions. [2021-07-13 18:56:59,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-13 18:56:59,172 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:56:59,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:56:59,184 INFO L225 Difference]: With dead ends: 9264 [2021-07-13 18:56:59,184 INFO L226 Difference]: Without dead ends: 9189 [2021-07-13 18:56:59,184 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 885.6ms TimeCoverageRelationStatistics Valid=370, Invalid=1270, Unknown=0, NotChecked=0, Total=1640 [2021-07-13 18:56:59,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9189 states. [2021-07-13 18:56:59,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9189 to 7767. [2021-07-13 18:56:59,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7767 states, 7765 states have (on average 2.7173213135866066) internal successors, (21100), 7766 states have internal predecessors, (21100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:59,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7767 states to 7767 states and 21100 transitions. [2021-07-13 18:56:59,305 INFO L78 Accepts]: Start accepts. Automaton has 7767 states and 21100 transitions. Word has length 113 [2021-07-13 18:56:59,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:56:59,306 INFO L482 AbstractCegarLoop]: Abstraction has 7767 states and 21100 transitions. [2021-07-13 18:56:59,306 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 5.380952380952381) internal successors, (113), 21 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:56:59,306 INFO L276 IsEmpty]: Start isEmpty. Operand 7767 states and 21100 transitions. [2021-07-13 18:56:59,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:56:59,316 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:56:59,316 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:56:59,316 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-07-13 18:56:59,317 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:56:59,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:56:59,317 INFO L82 PathProgramCache]: Analyzing trace with hash -462110173, now seen corresponding path program 25 times [2021-07-13 18:56:59,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:56:59,317 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936825442] [2021-07-13 18:56:59,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:56:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:56:59,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:56:59,638 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:56:59,638 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936825442] [2021-07-13 18:56:59,638 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936825442] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:56:59,638 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:56:59,638 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:56:59,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659951734] [2021-07-13 18:56:59,638 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:56:59,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:56:59,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:56:59,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:56:59,639 INFO L87 Difference]: Start difference. First operand 7767 states and 21100 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:00,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:00,847 INFO L93 Difference]: Finished difference Result 9419 states and 24711 transitions. [2021-07-13 18:57:00,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:57:00,847 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:57:00,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:00,862 INFO L225 Difference]: With dead ends: 9419 [2021-07-13 18:57:00,862 INFO L226 Difference]: Without dead ends: 9419 [2021-07-13 18:57:00,863 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 906.8ms TimeCoverageRelationStatistics Valid=267, Invalid=789, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 18:57:00,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9419 states. [2021-07-13 18:57:00,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9419 to 7587. [2021-07-13 18:57:00,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7587 states, 7585 states have (on average 2.7260382333553066) internal successors, (20677), 7586 states have internal predecessors, (20677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:01,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7587 states to 7587 states and 20677 transitions. [2021-07-13 18:57:01,006 INFO L78 Accepts]: Start accepts. Automaton has 7587 states and 20677 transitions. Word has length 113 [2021-07-13 18:57:01,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:01,007 INFO L482 AbstractCegarLoop]: Abstraction has 7587 states and 20677 transitions. [2021-07-13 18:57:01,007 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:01,007 INFO L276 IsEmpty]: Start isEmpty. Operand 7587 states and 20677 transitions. [2021-07-13 18:57:01,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:57:01,017 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:01,017 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:01,017 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-07-13 18:57:01,017 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:01,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:01,018 INFO L82 PathProgramCache]: Analyzing trace with hash -408981413, now seen corresponding path program 15 times [2021-07-13 18:57:01,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:01,018 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127671971] [2021-07-13 18:57:01,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:01,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:01,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:01,304 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:01,304 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127671971] [2021-07-13 18:57:01,305 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127671971] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:01,305 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:01,305 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:57:01,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340501029] [2021-07-13 18:57:01,305 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:57:01,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:01,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:57:01,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:57:01,305 INFO L87 Difference]: Start difference. First operand 7587 states and 20677 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:02,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:02,465 INFO L93 Difference]: Finished difference Result 9740 states and 26365 transitions. [2021-07-13 18:57:02,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-07-13 18:57:02,465 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:57:02,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:02,494 INFO L225 Difference]: With dead ends: 9740 [2021-07-13 18:57:02,494 INFO L226 Difference]: Without dead ends: 9740 [2021-07-13 18:57:02,494 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 774.5ms TimeCoverageRelationStatistics Valid=369, Invalid=1037, Unknown=0, NotChecked=0, Total=1406 [2021-07-13 18:57:02,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9740 states. [2021-07-13 18:57:02,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9740 to 7441. [2021-07-13 18:57:02,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7441 states, 7439 states have (on average 2.7121924989918) internal successors, (20176), 7440 states have internal predecessors, (20176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:02,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7441 states to 7441 states and 20176 transitions. [2021-07-13 18:57:02,647 INFO L78 Accepts]: Start accepts. Automaton has 7441 states and 20176 transitions. Word has length 113 [2021-07-13 18:57:02,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:02,648 INFO L482 AbstractCegarLoop]: Abstraction has 7441 states and 20176 transitions. [2021-07-13 18:57:02,648 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:02,648 INFO L276 IsEmpty]: Start isEmpty. Operand 7441 states and 20176 transitions. [2021-07-13 18:57:02,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:57:02,657 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:02,657 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:02,657 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-07-13 18:57:02,657 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:02,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:02,658 INFO L82 PathProgramCache]: Analyzing trace with hash -696302497, now seen corresponding path program 26 times [2021-07-13 18:57:02,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:02,658 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656871655] [2021-07-13 18:57:02,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:02,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:02,974 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:02,975 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656871655] [2021-07-13 18:57:02,975 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656871655] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:02,975 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:02,975 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:57:02,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535426941] [2021-07-13 18:57:02,975 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:57:02,975 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:02,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:57:02,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:57:02,976 INFO L87 Difference]: Start difference. First operand 7441 states and 20176 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:04,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:04,329 INFO L93 Difference]: Finished difference Result 9905 states and 25485 transitions. [2021-07-13 18:57:04,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:57:04,329 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:57:04,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:04,345 INFO L225 Difference]: With dead ends: 9905 [2021-07-13 18:57:04,345 INFO L226 Difference]: Without dead ends: 9905 [2021-07-13 18:57:04,346 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1056.6ms TimeCoverageRelationStatistics Valid=291, Invalid=831, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:57:04,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9905 states. [2021-07-13 18:57:04,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9905 to 7440. [2021-07-13 18:57:04,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7440 states, 7438 states have (on average 2.7122882495294434) internal successors, (20174), 7439 states have internal predecessors, (20174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:04,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7440 states to 7440 states and 20174 transitions. [2021-07-13 18:57:04,493 INFO L78 Accepts]: Start accepts. Automaton has 7440 states and 20174 transitions. Word has length 113 [2021-07-13 18:57:04,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:04,493 INFO L482 AbstractCegarLoop]: Abstraction has 7440 states and 20174 transitions. [2021-07-13 18:57:04,493 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:04,493 INFO L276 IsEmpty]: Start isEmpty. Operand 7440 states and 20174 transitions. [2021-07-13 18:57:04,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:57:04,502 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:04,502 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:04,502 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-07-13 18:57:04,502 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:04,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:04,503 INFO L82 PathProgramCache]: Analyzing trace with hash -95222585, now seen corresponding path program 27 times [2021-07-13 18:57:04,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:04,503 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355841621] [2021-07-13 18:57:04,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:04,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:04,783 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:04,783 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355841621] [2021-07-13 18:57:04,784 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355841621] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:04,784 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:04,784 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:57:04,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355703077] [2021-07-13 18:57:04,784 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:57:04,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:04,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:57:04,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:57:04,784 INFO L87 Difference]: Start difference. First operand 7440 states and 20174 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:06,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:06,161 INFO L93 Difference]: Finished difference Result 9436 states and 24508 transitions. [2021-07-13 18:57:06,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-13 18:57:06,162 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:57:06,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:06,174 INFO L225 Difference]: With dead ends: 9436 [2021-07-13 18:57:06,174 INFO L226 Difference]: Without dead ends: 9436 [2021-07-13 18:57:06,175 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1013.6ms TimeCoverageRelationStatistics Valid=314, Invalid=876, Unknown=0, NotChecked=0, Total=1190 [2021-07-13 18:57:06,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9436 states. [2021-07-13 18:57:06,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9436 to 7506. [2021-07-13 18:57:06,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7506 states, 7504 states have (on average 2.7092217484008527) internal successors, (20330), 7505 states have internal predecessors, (20330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:06,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7506 states to 7506 states and 20330 transitions. [2021-07-13 18:57:06,314 INFO L78 Accepts]: Start accepts. Automaton has 7506 states and 20330 transitions. Word has length 113 [2021-07-13 18:57:06,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:06,314 INFO L482 AbstractCegarLoop]: Abstraction has 7506 states and 20330 transitions. [2021-07-13 18:57:06,314 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:06,314 INFO L276 IsEmpty]: Start isEmpty. Operand 7506 states and 20330 transitions. [2021-07-13 18:57:06,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:57:06,324 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:06,324 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:06,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-07-13 18:57:06,324 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:06,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:06,325 INFO L82 PathProgramCache]: Analyzing trace with hash 866108567, now seen corresponding path program 28 times [2021-07-13 18:57:06,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:06,325 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279002827] [2021-07-13 18:57:06,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:06,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:06,593 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:06,593 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279002827] [2021-07-13 18:57:06,593 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279002827] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:06,593 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:06,593 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:57:06,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352921495] [2021-07-13 18:57:06,593 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:57:06,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:06,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:57:06,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:57:06,594 INFO L87 Difference]: Start difference. First operand 7506 states and 20330 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:07,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:07,462 INFO L93 Difference]: Finished difference Result 8687 states and 22865 transitions. [2021-07-13 18:57:07,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 18:57:07,462 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:57:07,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:07,476 INFO L225 Difference]: With dead ends: 8687 [2021-07-13 18:57:07,476 INFO L226 Difference]: Without dead ends: 8687 [2021-07-13 18:57:07,476 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 655.7ms TimeCoverageRelationStatistics Valid=258, Invalid=798, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 18:57:07,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8687 states. [2021-07-13 18:57:07,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8687 to 7476. [2021-07-13 18:57:07,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7476 states, 7474 states have (on average 2.71006154669521) internal successors, (20255), 7475 states have internal predecessors, (20255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:07,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7476 states to 7476 states and 20255 transitions. [2021-07-13 18:57:07,618 INFO L78 Accepts]: Start accepts. Automaton has 7476 states and 20255 transitions. Word has length 113 [2021-07-13 18:57:07,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:07,618 INFO L482 AbstractCegarLoop]: Abstraction has 7476 states and 20255 transitions. [2021-07-13 18:57:07,618 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:07,619 INFO L276 IsEmpty]: Start isEmpty. Operand 7476 states and 20255 transitions. [2021-07-13 18:57:07,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:57:07,628 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:07,629 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:07,629 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-07-13 18:57:07,629 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:07,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:07,629 INFO L82 PathProgramCache]: Analyzing trace with hash 76240089, now seen corresponding path program 29 times [2021-07-13 18:57:07,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:07,629 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728420129] [2021-07-13 18:57:07,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:07,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:07,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:07,888 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:07,888 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728420129] [2021-07-13 18:57:07,888 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728420129] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:07,888 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:07,888 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:57:07,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98645980] [2021-07-13 18:57:07,889 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:57:07,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:07,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:57:07,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:57:07,889 INFO L87 Difference]: Start difference. First operand 7476 states and 20255 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:08,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:08,876 INFO L93 Difference]: Finished difference Result 9666 states and 24906 transitions. [2021-07-13 18:57:08,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 18:57:08,876 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:57:08,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:08,888 INFO L225 Difference]: With dead ends: 9666 [2021-07-13 18:57:08,889 INFO L226 Difference]: Without dead ends: 9666 [2021-07-13 18:57:08,889 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 677.0ms TimeCoverageRelationStatistics Valid=257, Invalid=799, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 18:57:08,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9666 states. [2021-07-13 18:57:08,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9666 to 7478. [2021-07-13 18:57:09,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7478 states, 7476 states have (on average 2.7100053504547885) internal successors, (20260), 7477 states have internal predecessors, (20260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:09,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7478 states to 7478 states and 20260 transitions. [2021-07-13 18:57:09,022 INFO L78 Accepts]: Start accepts. Automaton has 7478 states and 20260 transitions. Word has length 113 [2021-07-13 18:57:09,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:09,022 INFO L482 AbstractCegarLoop]: Abstraction has 7478 states and 20260 transitions. [2021-07-13 18:57:09,022 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:09,022 INFO L276 IsEmpty]: Start isEmpty. Operand 7478 states and 20260 transitions. [2021-07-13 18:57:09,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:57:09,031 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:09,031 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:09,031 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-07-13 18:57:09,031 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:09,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:09,031 INFO L82 PathProgramCache]: Analyzing trace with hash -157952235, now seen corresponding path program 30 times [2021-07-13 18:57:09,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:09,032 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214405812] [2021-07-13 18:57:09,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:09,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:09,303 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:09,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214405812] [2021-07-13 18:57:09,304 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214405812] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:09,304 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:09,304 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:57:09,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543383532] [2021-07-13 18:57:09,304 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:57:09,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:09,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:57:09,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:57:09,304 INFO L87 Difference]: Start difference. First operand 7478 states and 20260 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:10,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:10,241 INFO L93 Difference]: Finished difference Result 9266 states and 24061 transitions. [2021-07-13 18:57:10,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:57:10,242 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:57:10,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:10,256 INFO L225 Difference]: With dead ends: 9266 [2021-07-13 18:57:10,256 INFO L226 Difference]: Without dead ends: 9266 [2021-07-13 18:57:10,256 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 704.8ms TimeCoverageRelationStatistics Valid=281, Invalid=841, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:57:10,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9266 states. [2021-07-13 18:57:10,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9266 to 7470. [2021-07-13 18:57:10,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7470 states, 7468 states have (on average 2.7102303160149974) internal successors, (20240), 7469 states have internal predecessors, (20240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:10,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7470 states to 7470 states and 20240 transitions. [2021-07-13 18:57:10,386 INFO L78 Accepts]: Start accepts. Automaton has 7470 states and 20240 transitions. Word has length 113 [2021-07-13 18:57:10,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:10,386 INFO L482 AbstractCegarLoop]: Abstraction has 7470 states and 20240 transitions. [2021-07-13 18:57:10,386 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:10,387 INFO L276 IsEmpty]: Start isEmpty. Operand 7470 states and 20240 transitions. [2021-07-13 18:57:10,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:57:10,396 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:10,396 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:10,396 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-07-13 18:57:10,396 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:10,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:10,397 INFO L82 PathProgramCache]: Analyzing trace with hash -854415405, now seen corresponding path program 31 times [2021-07-13 18:57:10,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:10,397 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033258151] [2021-07-13 18:57:10,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:10,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:10,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:10,716 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:10,716 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033258151] [2021-07-13 18:57:10,716 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033258151] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:10,716 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:10,716 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:57:10,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631756196] [2021-07-13 18:57:10,717 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:57:10,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:10,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:57:10,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:57:10,717 INFO L87 Difference]: Start difference. First operand 7470 states and 20240 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:11,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:11,780 INFO L93 Difference]: Finished difference Result 8879 states and 23256 transitions. [2021-07-13 18:57:11,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-13 18:57:11,781 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:57:11,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:11,795 INFO L225 Difference]: With dead ends: 8879 [2021-07-13 18:57:11,795 INFO L226 Difference]: Without dead ends: 8879 [2021-07-13 18:57:11,795 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 830.8ms TimeCoverageRelationStatistics Valid=256, Invalid=800, Unknown=0, NotChecked=0, Total=1056 [2021-07-13 18:57:11,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8879 states. [2021-07-13 18:57:11,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8879 to 7460. [2021-07-13 18:57:11,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7460 states, 7458 states have (on average 2.710512201662644) internal successors, (20215), 7459 states have internal predecessors, (20215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:11,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7460 states to 7460 states and 20215 transitions. [2021-07-13 18:57:11,981 INFO L78 Accepts]: Start accepts. Automaton has 7460 states and 20215 transitions. Word has length 113 [2021-07-13 18:57:11,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:11,981 INFO L482 AbstractCegarLoop]: Abstraction has 7460 states and 20215 transitions. [2021-07-13 18:57:11,981 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:11,981 INFO L276 IsEmpty]: Start isEmpty. Operand 7460 states and 20215 transitions. [2021-07-13 18:57:11,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:57:11,990 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:11,991 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:11,991 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-07-13 18:57:11,991 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:11,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:11,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1088607729, now seen corresponding path program 32 times [2021-07-13 18:57:11,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:11,991 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365268533] [2021-07-13 18:57:11,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:12,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:12,273 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:12,273 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365268533] [2021-07-13 18:57:12,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365268533] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:12,273 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:12,273 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:57:12,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344142884] [2021-07-13 18:57:12,274 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:57:12,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:12,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:57:12,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:57:12,274 INFO L87 Difference]: Start difference. First operand 7460 states and 20215 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:13,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:13,177 INFO L93 Difference]: Finished difference Result 9456 states and 24447 transitions. [2021-07-13 18:57:13,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-13 18:57:13,178 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:57:13,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:13,193 INFO L225 Difference]: With dead ends: 9456 [2021-07-13 18:57:13,193 INFO L226 Difference]: Without dead ends: 9456 [2021-07-13 18:57:13,193 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 650.9ms TimeCoverageRelationStatistics Valid=280, Invalid=842, Unknown=0, NotChecked=0, Total=1122 [2021-07-13 18:57:13,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9456 states. [2021-07-13 18:57:13,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9456 to 7458. [2021-07-13 18:57:13,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7458 states, 7456 states have (on average 2.710568669527897) internal successors, (20210), 7457 states have internal predecessors, (20210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:13,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7458 states to 7458 states and 20210 transitions. [2021-07-13 18:57:13,350 INFO L78 Accepts]: Start accepts. Automaton has 7458 states and 20210 transitions. Word has length 113 [2021-07-13 18:57:13,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:13,350 INFO L482 AbstractCegarLoop]: Abstraction has 7458 states and 20210 transitions. [2021-07-13 18:57:13,351 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:13,351 INFO L276 IsEmpty]: Start isEmpty. Operand 7458 states and 20210 transitions. [2021-07-13 18:57:13,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-07-13 18:57:13,361 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:13,361 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:13,361 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-07-13 18:57:13,361 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:13,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:13,361 INFO L82 PathProgramCache]: Analyzing trace with hash -487527817, now seen corresponding path program 33 times [2021-07-13 18:57:13,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:13,362 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001985166] [2021-07-13 18:57:13,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:13,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:13,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:13,665 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:13,665 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001985166] [2021-07-13 18:57:13,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001985166] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:13,665 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:13,666 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-07-13 18:57:13,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268529079] [2021-07-13 18:57:13,666 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-13 18:57:13,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:13,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-13 18:57:13,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2021-07-13 18:57:13,666 INFO L87 Difference]: Start difference. First operand 7458 states and 20210 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:14,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:14,729 INFO L93 Difference]: Finished difference Result 8505 states and 22492 transitions. [2021-07-13 18:57:14,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-13 18:57:14,729 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-07-13 18:57:14,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:14,807 INFO L225 Difference]: With dead ends: 8505 [2021-07-13 18:57:14,808 INFO L226 Difference]: Without dead ends: 8505 [2021-07-13 18:57:14,808 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 851.4ms TimeCoverageRelationStatistics Valid=303, Invalid=887, Unknown=0, NotChecked=0, Total=1190 [2021-07-13 18:57:14,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8505 states. [2021-07-13 18:57:14,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8505 to 6990. [2021-07-13 18:57:14,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6990 states, 6989 states have (on average 2.7507511804263842) internal successors, (19225), 6989 states have internal predecessors, (19225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:14,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6990 states to 6990 states and 19225 transitions. [2021-07-13 18:57:14,932 INFO L78 Accepts]: Start accepts. Automaton has 6990 states and 19225 transitions. Word has length 113 [2021-07-13 18:57:14,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:14,932 INFO L482 AbstractCegarLoop]: Abstraction has 6990 states and 19225 transitions. [2021-07-13 18:57:14,932 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:14,932 INFO L276 IsEmpty]: Start isEmpty. Operand 6990 states and 19225 transitions. [2021-07-13 18:57:14,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:57:14,941 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:14,941 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:14,941 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-07-13 18:57:14,942 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:14,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:14,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1070559471, now seen corresponding path program 1 times [2021-07-13 18:57:14,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:14,942 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416021430] [2021-07-13 18:57:14,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:15,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:15,293 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:15,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416021430] [2021-07-13 18:57:15,293 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416021430] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:15,293 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:15,293 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 18:57:15,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714665044] [2021-07-13 18:57:15,293 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 18:57:15,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:15,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 18:57:15,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:57:15,294 INFO L87 Difference]: Start difference. First operand 6990 states and 19225 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:15,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:15,773 INFO L93 Difference]: Finished difference Result 7776 states and 21089 transitions. [2021-07-13 18:57:15,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 18:57:15,773 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:57:15,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:15,785 INFO L225 Difference]: With dead ends: 7776 [2021-07-13 18:57:15,785 INFO L226 Difference]: Without dead ends: 7776 [2021-07-13 18:57:15,786 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 404.3ms TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2021-07-13 18:57:15,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7776 states. [2021-07-13 18:57:15,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7776 to 7092. [2021-07-13 18:57:15,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7092 states, 7091 states have (on average 2.7252855732618815) internal successors, (19325), 7091 states have internal predecessors, (19325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:15,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7092 states to 7092 states and 19325 transitions. [2021-07-13 18:57:15,897 INFO L78 Accepts]: Start accepts. Automaton has 7092 states and 19325 transitions. Word has length 119 [2021-07-13 18:57:15,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:15,898 INFO L482 AbstractCegarLoop]: Abstraction has 7092 states and 19325 transitions. [2021-07-13 18:57:15,898 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:15,898 INFO L276 IsEmpty]: Start isEmpty. Operand 7092 states and 19325 transitions. [2021-07-13 18:57:15,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:57:15,907 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:15,908 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:15,908 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-07-13 18:57:15,908 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:15,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:15,908 INFO L82 PathProgramCache]: Analyzing trace with hash -511780789, now seen corresponding path program 2 times [2021-07-13 18:57:15,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:15,908 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271936540] [2021-07-13 18:57:15,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:15,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:16,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:16,701 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:16,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271936540] [2021-07-13 18:57:16,702 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271936540] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:16,702 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:16,702 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:57:16,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275283234] [2021-07-13 18:57:16,702 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:57:16,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:16,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:57:16,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:57:16,703 INFO L87 Difference]: Start difference. First operand 7092 states and 19325 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:19,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:19,799 INFO L93 Difference]: Finished difference Result 10942 states and 29534 transitions. [2021-07-13 18:57:19,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 18:57:19,800 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:57:19,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:19,816 INFO L225 Difference]: With dead ends: 10942 [2021-07-13 18:57:19,816 INFO L226 Difference]: Without dead ends: 10626 [2021-07-13 18:57:19,817 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 2517.7ms TimeCoverageRelationStatistics Valid=570, Invalid=2970, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 18:57:19,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10626 states. [2021-07-13 18:57:19,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10626 to 8460. [2021-07-13 18:57:19,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8460 states, 8459 states have (on average 2.743232060527249) internal successors, (23205), 8459 states have internal predecessors, (23205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:19,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8460 states to 8460 states and 23205 transitions. [2021-07-13 18:57:19,968 INFO L78 Accepts]: Start accepts. Automaton has 8460 states and 23205 transitions. Word has length 119 [2021-07-13 18:57:19,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:19,968 INFO L482 AbstractCegarLoop]: Abstraction has 8460 states and 23205 transitions. [2021-07-13 18:57:19,968 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:19,968 INFO L276 IsEmpty]: Start isEmpty. Operand 8460 states and 23205 transitions. [2021-07-13 18:57:19,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:57:19,979 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:19,979 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:19,979 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-07-13 18:57:19,979 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:19,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:19,979 INFO L82 PathProgramCache]: Analyzing trace with hash 492066409, now seen corresponding path program 3 times [2021-07-13 18:57:19,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:19,979 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923781899] [2021-07-13 18:57:19,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:20,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:20,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:20,671 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:20,671 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923781899] [2021-07-13 18:57:20,672 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923781899] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:20,672 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:20,672 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:57:20,672 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811863528] [2021-07-13 18:57:20,672 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:57:20,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:20,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:57:20,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:57:20,673 INFO L87 Difference]: Start difference. First operand 8460 states and 23205 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:21,699 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-07-13 18:57:21,934 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-07-13 18:57:23,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:23,771 INFO L93 Difference]: Finished difference Result 11275 states and 30450 transitions. [2021-07-13 18:57:23,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 18:57:23,771 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:57:23,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:23,788 INFO L225 Difference]: With dead ends: 11275 [2021-07-13 18:57:23,788 INFO L226 Difference]: Without dead ends: 10509 [2021-07-13 18:57:23,789 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 2605.1ms TimeCoverageRelationStatistics Valid=613, Invalid=2927, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 18:57:23,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10509 states. [2021-07-13 18:57:23,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10509 to 8580. [2021-07-13 18:57:23,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8580 states, 8579 states have (on average 2.7300384660216808) internal successors, (23421), 8579 states have internal predecessors, (23421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:23,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8580 states to 8580 states and 23421 transitions. [2021-07-13 18:57:23,942 INFO L78 Accepts]: Start accepts. Automaton has 8580 states and 23421 transitions. Word has length 119 [2021-07-13 18:57:23,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:23,942 INFO L482 AbstractCegarLoop]: Abstraction has 8580 states and 23421 transitions. [2021-07-13 18:57:23,942 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:23,942 INFO L276 IsEmpty]: Start isEmpty. Operand 8580 states and 23421 transitions. [2021-07-13 18:57:23,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:57:23,952 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:23,952 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:23,953 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-07-13 18:57:23,953 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:23,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:23,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1700491773, now seen corresponding path program 4 times [2021-07-13 18:57:23,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:23,953 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517624498] [2021-07-13 18:57:23,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:24,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:24,612 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:24,612 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517624498] [2021-07-13 18:57:24,612 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517624498] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:24,612 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:24,612 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:57:24,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15736593] [2021-07-13 18:57:24,612 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:57:24,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:24,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:57:24,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:57:24,613 INFO L87 Difference]: Start difference. First operand 8580 states and 23421 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:27,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:27,520 INFO L93 Difference]: Finished difference Result 10700 states and 28827 transitions. [2021-07-13 18:57:27,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-13 18:57:27,520 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:57:27,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:27,535 INFO L225 Difference]: With dead ends: 10700 [2021-07-13 18:57:27,535 INFO L226 Difference]: Without dead ends: 9861 [2021-07-13 18:57:27,536 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 2505.6ms TimeCoverageRelationStatistics Valid=634, Invalid=3148, Unknown=0, NotChecked=0, Total=3782 [2021-07-13 18:57:27,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9861 states. [2021-07-13 18:57:27,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9861 to 7932. [2021-07-13 18:57:27,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7932 states, 7931 states have (on average 2.728659689824738) internal successors, (21641), 7931 states have internal predecessors, (21641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:27,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7932 states to 7932 states and 21641 transitions. [2021-07-13 18:57:27,688 INFO L78 Accepts]: Start accepts. Automaton has 7932 states and 21641 transitions. Word has length 119 [2021-07-13 18:57:27,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:27,688 INFO L482 AbstractCegarLoop]: Abstraction has 7932 states and 21641 transitions. [2021-07-13 18:57:27,688 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:27,688 INFO L276 IsEmpty]: Start isEmpty. Operand 7932 states and 21641 transitions. [2021-07-13 18:57:27,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:57:27,698 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:27,698 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:27,698 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-07-13 18:57:27,698 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:27,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:27,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1095390169, now seen corresponding path program 5 times [2021-07-13 18:57:27,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:27,699 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969771228] [2021-07-13 18:57:27,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:28,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:28,519 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:28,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969771228] [2021-07-13 18:57:28,519 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969771228] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:28,519 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:28,519 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:57:28,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925322296] [2021-07-13 18:57:28,519 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:57:28,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:28,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:57:28,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:57:28,520 INFO L87 Difference]: Start difference. First operand 7932 states and 21641 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:31,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:31,332 INFO L93 Difference]: Finished difference Result 9363 states and 25222 transitions. [2021-07-13 18:57:31,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 18:57:31,332 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:57:31,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:31,347 INFO L225 Difference]: With dead ends: 9363 [2021-07-13 18:57:31,348 INFO L226 Difference]: Without dead ends: 9006 [2021-07-13 18:57:31,348 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 2344.6ms TimeCoverageRelationStatistics Valid=623, Invalid=2917, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 18:57:31,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9006 states. [2021-07-13 18:57:31,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9006 to 7915. [2021-07-13 18:57:31,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7915 states, 7914 states have (on average 2.7292140510487743) internal successors, (21599), 7914 states have internal predecessors, (21599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:31,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7915 states to 7915 states and 21599 transitions. [2021-07-13 18:57:31,497 INFO L78 Accepts]: Start accepts. Automaton has 7915 states and 21599 transitions. Word has length 119 [2021-07-13 18:57:31,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:31,497 INFO L482 AbstractCegarLoop]: Abstraction has 7915 states and 21599 transitions. [2021-07-13 18:57:31,497 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:31,497 INFO L276 IsEmpty]: Start isEmpty. Operand 7915 states and 21599 transitions. [2021-07-13 18:57:31,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:57:31,507 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:31,507 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:31,507 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-07-13 18:57:31,507 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:31,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:31,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1799705483, now seen corresponding path program 6 times [2021-07-13 18:57:31,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:31,508 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727658988] [2021-07-13 18:57:31,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:32,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:32,166 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:32,166 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727658988] [2021-07-13 18:57:32,166 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727658988] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:32,166 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:32,166 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:57:32,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707088193] [2021-07-13 18:57:32,167 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:57:32,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:32,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:57:32,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:57:32,167 INFO L87 Difference]: Start difference. First operand 7915 states and 21599 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:33,211 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 62 [2021-07-13 18:57:33,589 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-07-13 18:57:33,769 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-07-13 18:57:35,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:35,308 INFO L93 Difference]: Finished difference Result 9042 states and 24331 transitions. [2021-07-13 18:57:35,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 18:57:35,309 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:57:35,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:35,321 INFO L225 Difference]: With dead ends: 9042 [2021-07-13 18:57:35,321 INFO L226 Difference]: Without dead ends: 8600 [2021-07-13 18:57:35,321 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 2684.8ms TimeCoverageRelationStatistics Valid=596, Invalid=2826, Unknown=0, NotChecked=0, Total=3422 [2021-07-13 18:57:35,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8600 states. [2021-07-13 18:57:35,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8600 to 7874. [2021-07-13 18:57:35,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7874 states, 7873 states have (on average 2.729455099707862) internal successors, (21489), 7873 states have internal predecessors, (21489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:35,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7874 states to 7874 states and 21489 transitions. [2021-07-13 18:57:35,443 INFO L78 Accepts]: Start accepts. Automaton has 7874 states and 21489 transitions. Word has length 119 [2021-07-13 18:57:35,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:35,443 INFO L482 AbstractCegarLoop]: Abstraction has 7874 states and 21489 transitions. [2021-07-13 18:57:35,444 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:35,444 INFO L276 IsEmpty]: Start isEmpty. Operand 7874 states and 21489 transitions. [2021-07-13 18:57:35,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:57:35,454 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:35,454 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:35,454 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-07-13 18:57:35,454 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:35,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:35,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1366805005, now seen corresponding path program 7 times [2021-07-13 18:57:35,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:35,455 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89968935] [2021-07-13 18:57:35,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:35,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:36,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:36,089 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:36,089 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89968935] [2021-07-13 18:57:36,089 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89968935] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:36,089 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:36,089 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:57:36,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722179290] [2021-07-13 18:57:36,089 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:57:36,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:36,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:57:36,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:57:36,090 INFO L87 Difference]: Start difference. First operand 7874 states and 21489 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:37,365 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-07-13 18:57:38,580 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-07-13 18:57:39,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:39,578 INFO L93 Difference]: Finished difference Result 11480 states and 30789 transitions. [2021-07-13 18:57:39,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-13 18:57:39,578 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:57:39,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:39,593 INFO L225 Difference]: With dead ends: 11480 [2021-07-13 18:57:39,593 INFO L226 Difference]: Without dead ends: 11164 [2021-07-13 18:57:39,594 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 2819.6ms TimeCoverageRelationStatistics Valid=597, Invalid=3063, Unknown=0, NotChecked=0, Total=3660 [2021-07-13 18:57:39,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11164 states. [2021-07-13 18:57:39,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11164 to 8642. [2021-07-13 18:57:39,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8642 states, 8641 states have (on average 2.7275778266404354) internal successors, (23569), 8641 states have internal predecessors, (23569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:39,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8642 states to 8642 states and 23569 transitions. [2021-07-13 18:57:39,736 INFO L78 Accepts]: Start accepts. Automaton has 8642 states and 23569 transitions. Word has length 119 [2021-07-13 18:57:39,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:39,736 INFO L482 AbstractCegarLoop]: Abstraction has 8642 states and 23569 transitions. [2021-07-13 18:57:39,736 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:39,736 INFO L276 IsEmpty]: Start isEmpty. Operand 8642 states and 23569 transitions. [2021-07-13 18:57:39,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:57:39,747 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:39,747 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:39,747 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-07-13 18:57:39,747 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:39,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:39,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1924315093, now seen corresponding path program 8 times [2021-07-13 18:57:39,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:39,748 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618840318] [2021-07-13 18:57:39,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:40,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:40,382 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:40,382 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618840318] [2021-07-13 18:57:40,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618840318] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:40,382 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:40,382 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:57:40,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463485870] [2021-07-13 18:57:40,383 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:57:40,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:40,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:57:40,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:57:40,383 INFO L87 Difference]: Start difference. First operand 8642 states and 23569 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:41,636 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-07-13 18:57:43,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:43,780 INFO L93 Difference]: Finished difference Result 11813 states and 31705 transitions. [2021-07-13 18:57:43,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-13 18:57:43,781 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:57:43,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:43,797 INFO L225 Difference]: With dead ends: 11813 [2021-07-13 18:57:43,798 INFO L226 Difference]: Without dead ends: 11047 [2021-07-13 18:57:43,798 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 2844.7ms TimeCoverageRelationStatistics Valid=642, Invalid=3018, Unknown=0, NotChecked=0, Total=3660 [2021-07-13 18:57:43,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11047 states. [2021-07-13 18:57:43,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11047 to 8762. [2021-07-13 18:57:43,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8762 states, 8761 states have (on average 2.7148727314233536) internal successors, (23785), 8761 states have internal predecessors, (23785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:43,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8762 states to 8762 states and 23785 transitions. [2021-07-13 18:57:43,931 INFO L78 Accepts]: Start accepts. Automaton has 8762 states and 23785 transitions. Word has length 119 [2021-07-13 18:57:43,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:43,931 INFO L482 AbstractCegarLoop]: Abstraction has 8762 states and 23785 transitions. [2021-07-13 18:57:43,931 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:43,931 INFO L276 IsEmpty]: Start isEmpty. Operand 8762 states and 23785 transitions. [2021-07-13 18:57:43,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:57:43,941 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:43,941 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:43,941 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-07-13 18:57:43,941 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:43,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:43,941 INFO L82 PathProgramCache]: Analyzing trace with hash -715889729, now seen corresponding path program 9 times [2021-07-13 18:57:43,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:43,942 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079166033] [2021-07-13 18:57:43,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:44,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:44,573 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:44,573 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079166033] [2021-07-13 18:57:44,573 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079166033] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:44,573 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:44,573 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:57:44,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384305221] [2021-07-13 18:57:44,573 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:57:44,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:44,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:57:44,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:57:44,574 INFO L87 Difference]: Start difference. First operand 8762 states and 23785 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:45,506 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 57 [2021-07-13 18:57:45,856 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-07-13 18:57:47,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:47,663 INFO L93 Difference]: Finished difference Result 11238 states and 30082 transitions. [2021-07-13 18:57:47,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-07-13 18:57:47,664 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:57:47,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:47,679 INFO L225 Difference]: With dead ends: 11238 [2021-07-13 18:57:47,679 INFO L226 Difference]: Without dead ends: 10399 [2021-07-13 18:57:47,679 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 2642.2ms TimeCoverageRelationStatistics Valid=665, Invalid=3241, Unknown=0, NotChecked=0, Total=3906 [2021-07-13 18:57:47,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10399 states. [2021-07-13 18:57:47,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10399 to 8114. [2021-07-13 18:57:47,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8114 states, 8113 states have (on average 2.7123135708122765) internal successors, (22005), 8113 states have internal predecessors, (22005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:47,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8114 states to 8114 states and 22005 transitions. [2021-07-13 18:57:47,812 INFO L78 Accepts]: Start accepts. Automaton has 8114 states and 22005 transitions. Word has length 119 [2021-07-13 18:57:47,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:47,812 INFO L482 AbstractCegarLoop]: Abstraction has 8114 states and 22005 transitions. [2021-07-13 18:57:47,812 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:47,812 INFO L276 IsEmpty]: Start isEmpty. Operand 8114 states and 22005 transitions. [2021-07-13 18:57:47,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:57:47,822 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:47,822 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:47,822 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-07-13 18:57:47,822 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:47,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:47,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1320991333, now seen corresponding path program 10 times [2021-07-13 18:57:47,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:47,823 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593270865] [2021-07-13 18:57:47,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:47,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:48,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:48,553 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:48,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593270865] [2021-07-13 18:57:48,553 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593270865] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:48,553 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:48,553 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:57:48,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336620722] [2021-07-13 18:57:48,553 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:57:48,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:48,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:57:48,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:57:48,554 INFO L87 Difference]: Start difference. First operand 8114 states and 22005 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:50,262 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-07-13 18:57:51,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:51,680 INFO L93 Difference]: Finished difference Result 9873 states and 26395 transitions. [2021-07-13 18:57:51,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-13 18:57:51,680 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:57:51,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:51,696 INFO L225 Difference]: With dead ends: 9873 [2021-07-13 18:57:51,696 INFO L226 Difference]: Without dead ends: 9516 [2021-07-13 18:57:51,709 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 2698.4ms TimeCoverageRelationStatistics Valid=653, Invalid=3007, Unknown=0, NotChecked=0, Total=3660 [2021-07-13 18:57:51,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9516 states. [2021-07-13 18:57:51,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9516 to 7946. [2021-07-13 18:57:51,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7946 states, 7945 states have (on average 2.727375707992448) internal successors, (21669), 7945 states have internal predecessors, (21669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:51,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7946 states to 7946 states and 21669 transitions. [2021-07-13 18:57:51,854 INFO L78 Accepts]: Start accepts. Automaton has 7946 states and 21669 transitions. Word has length 119 [2021-07-13 18:57:51,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:51,855 INFO L482 AbstractCegarLoop]: Abstraction has 7946 states and 21669 transitions. [2021-07-13 18:57:51,855 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:51,855 INFO L276 IsEmpty]: Start isEmpty. Operand 7946 states and 21669 transitions. [2021-07-13 18:57:51,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:57:51,865 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:51,866 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:51,866 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-07-13 18:57:51,866 INFO L430 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:51,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:51,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1471718441, now seen corresponding path program 11 times [2021-07-13 18:57:51,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:51,866 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142796442] [2021-07-13 18:57:51,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:52,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:52,624 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:52,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142796442] [2021-07-13 18:57:52,625 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142796442] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:52,625 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:52,625 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:57:52,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640129124] [2021-07-13 18:57:52,626 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:57:52,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:52,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:57:52,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:57:52,627 INFO L87 Difference]: Start difference. First operand 7946 states and 21669 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:55,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:55,631 INFO L93 Difference]: Finished difference Result 10986 states and 29504 transitions. [2021-07-13 18:57:55,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 18:57:55,632 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:57:55,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:55,703 INFO L225 Difference]: With dead ends: 10986 [2021-07-13 18:57:55,703 INFO L226 Difference]: Without dead ends: 10670 [2021-07-13 18:57:55,703 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 2444.0ms TimeCoverageRelationStatistics Valid=543, Invalid=2763, Unknown=0, NotChecked=0, Total=3306 [2021-07-13 18:57:55,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10670 states. [2021-07-13 18:57:55,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10670 to 8726. [2021-07-13 18:57:55,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8726 states, 8725 states have (on average 2.726074498567335) internal successors, (23785), 8725 states have internal predecessors, (23785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:55,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8726 states to 8726 states and 23785 transitions. [2021-07-13 18:57:55,829 INFO L78 Accepts]: Start accepts. Automaton has 8726 states and 23785 transitions. Word has length 119 [2021-07-13 18:57:55,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:55,829 INFO L482 AbstractCegarLoop]: Abstraction has 8726 states and 23785 transitions. [2021-07-13 18:57:55,829 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:55,829 INFO L276 IsEmpty]: Start isEmpty. Operand 8726 states and 23785 transitions. [2021-07-13 18:57:55,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:57:55,840 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:55,840 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:55,841 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-07-13 18:57:55,841 INFO L430 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:55,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:55,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1819401657, now seen corresponding path program 12 times [2021-07-13 18:57:55,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:55,841 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497371077] [2021-07-13 18:57:55,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:55,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:57:56,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:57:56,464 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:57:56,464 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497371077] [2021-07-13 18:57:56,465 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497371077] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:57:56,465 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:57:56,465 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:57:56,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718038984] [2021-07-13 18:57:56,465 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:57:56,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:57:56,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:57:56,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:57:56,466 INFO L87 Difference]: Start difference. First operand 8726 states and 23785 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:59,095 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-07-13 18:57:59,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:57:59,741 INFO L93 Difference]: Finished difference Result 11346 states and 30358 transitions. [2021-07-13 18:57:59,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-13 18:57:59,742 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:57:59,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:57:59,754 INFO L225 Difference]: With dead ends: 11346 [2021-07-13 18:57:59,754 INFO L226 Difference]: Without dead ends: 10580 [2021-07-13 18:57:59,755 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 2765.9ms TimeCoverageRelationStatistics Valid=622, Invalid=3038, Unknown=0, NotChecked=0, Total=3660 [2021-07-13 18:57:59,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10580 states. [2021-07-13 18:57:59,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10580 to 8846. [2021-07-13 18:57:59,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8846 states, 8845 states have (on average 2.7135104578858114) internal successors, (24001), 8845 states have internal predecessors, (24001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:59,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8846 states to 8846 states and 24001 transitions. [2021-07-13 18:57:59,878 INFO L78 Accepts]: Start accepts. Automaton has 8846 states and 24001 transitions. Word has length 119 [2021-07-13 18:57:59,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:57:59,878 INFO L482 AbstractCegarLoop]: Abstraction has 8846 states and 24001 transitions. [2021-07-13 18:57:59,878 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:57:59,878 INFO L276 IsEmpty]: Start isEmpty. Operand 8846 states and 24001 transitions. [2021-07-13 18:57:59,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:57:59,888 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:57:59,888 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:57:59,889 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-07-13 18:57:59,889 INFO L430 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:57:59,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:57:59,889 INFO L82 PathProgramCache]: Analyzing trace with hash -610976293, now seen corresponding path program 13 times [2021-07-13 18:57:59,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:57:59,889 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545576591] [2021-07-13 18:57:59,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:57:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:00,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:00,551 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:00,551 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545576591] [2021-07-13 18:58:00,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545576591] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:00,551 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:00,551 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:58:00,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349088009] [2021-07-13 18:58:00,552 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:58:00,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:00,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:58:00,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:58:00,552 INFO L87 Difference]: Start difference. First operand 8846 states and 24001 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:03,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:03,953 INFO L93 Difference]: Finished difference Result 10771 states and 28735 transitions. [2021-07-13 18:58:03,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-07-13 18:58:03,954 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:58:03,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:03,968 INFO L225 Difference]: With dead ends: 10771 [2021-07-13 18:58:03,968 INFO L226 Difference]: Without dead ends: 9932 [2021-07-13 18:58:03,968 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 718 ImplicationChecksByTransitivity, 2749.3ms TimeCoverageRelationStatistics Valid=648, Invalid=3258, Unknown=0, NotChecked=0, Total=3906 [2021-07-13 18:58:03,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9932 states. [2021-07-13 18:58:04,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9932 to 8198. [2021-07-13 18:58:04,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8198 states, 8197 states have (on average 2.700622178845919) internal successors, (22137), 8197 states have internal predecessors, (22137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:04,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8198 states to 8198 states and 22137 transitions. [2021-07-13 18:58:04,091 INFO L78 Accepts]: Start accepts. Automaton has 8198 states and 22137 transitions. Word has length 119 [2021-07-13 18:58:04,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:04,091 INFO L482 AbstractCegarLoop]: Abstraction has 8198 states and 22137 transitions. [2021-07-13 18:58:04,091 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:04,091 INFO L276 IsEmpty]: Start isEmpty. Operand 8198 states and 22137 transitions. [2021-07-13 18:58:04,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:58:04,100 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:04,100 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:04,100 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-07-13 18:58:04,100 INFO L430 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:04,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:04,101 INFO L82 PathProgramCache]: Analyzing trace with hash 45955191, now seen corresponding path program 14 times [2021-07-13 18:58:04,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:04,101 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486508392] [2021-07-13 18:58:04,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:04,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:04,697 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:04,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486508392] [2021-07-13 18:58:04,698 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486508392] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:04,698 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:04,698 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:58:04,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388807806] [2021-07-13 18:58:04,698 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:58:04,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:04,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:58:04,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:58:04,699 INFO L87 Difference]: Start difference. First operand 8198 states and 22137 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:05,407 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 58 [2021-07-13 18:58:07,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:07,156 INFO L93 Difference]: Finished difference Result 10212 states and 27037 transitions. [2021-07-13 18:58:07,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-13 18:58:07,156 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:58:07,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:07,170 INFO L225 Difference]: With dead ends: 10212 [2021-07-13 18:58:07,170 INFO L226 Difference]: Without dead ends: 9604 [2021-07-13 18:58:07,170 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 2078.0ms TimeCoverageRelationStatistics Valid=589, Invalid=3071, Unknown=0, NotChecked=0, Total=3660 [2021-07-13 18:58:07,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9604 states. [2021-07-13 18:58:07,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9604 to 7946. [2021-07-13 18:58:07,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7946 states, 7945 states have (on average 2.718313404657017) internal successors, (21597), 7945 states have internal predecessors, (21597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:07,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7946 states to 7946 states and 21597 transitions. [2021-07-13 18:58:07,288 INFO L78 Accepts]: Start accepts. Automaton has 7946 states and 21597 transitions. Word has length 119 [2021-07-13 18:58:07,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:07,288 INFO L482 AbstractCegarLoop]: Abstraction has 7946 states and 21597 transitions. [2021-07-13 18:58:07,288 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:07,289 INFO L276 IsEmpty]: Start isEmpty. Operand 7946 states and 21597 transitions. [2021-07-13 18:58:07,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:58:07,297 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:07,297 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:07,297 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-07-13 18:58:07,298 INFO L430 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:07,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:07,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1724988173, now seen corresponding path program 15 times [2021-07-13 18:58:07,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:07,298 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605010176] [2021-07-13 18:58:07,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:07,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:07,934 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:07,934 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605010176] [2021-07-13 18:58:07,934 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605010176] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:07,934 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:07,934 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:58:07,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042578454] [2021-07-13 18:58:07,934 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:58:07,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:07,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:58:07,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:58:07,935 INFO L87 Difference]: Start difference. First operand 7946 states and 21597 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:09,509 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-07-13 18:58:11,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:11,205 INFO L93 Difference]: Finished difference Result 9168 states and 24455 transitions. [2021-07-13 18:58:11,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-13 18:58:11,206 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:58:11,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:11,232 INFO L225 Difference]: With dead ends: 9168 [2021-07-13 18:58:11,233 INFO L226 Difference]: Without dead ends: 8847 [2021-07-13 18:58:11,233 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 2752.8ms TimeCoverageRelationStatistics Valid=653, Invalid=3007, Unknown=0, NotChecked=0, Total=3660 [2021-07-13 18:58:11,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8847 states. [2021-07-13 18:58:11,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8847 to 7956. [2021-07-13 18:58:11,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7956 states, 7955 states have (on average 2.717536140791955) internal successors, (21618), 7955 states have internal predecessors, (21618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:11,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7956 states to 7956 states and 21618 transitions. [2021-07-13 18:58:11,366 INFO L78 Accepts]: Start accepts. Automaton has 7956 states and 21618 transitions. Word has length 119 [2021-07-13 18:58:11,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:11,367 INFO L482 AbstractCegarLoop]: Abstraction has 7956 states and 21618 transitions. [2021-07-13 18:58:11,367 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:11,367 INFO L276 IsEmpty]: Start isEmpty. Operand 7956 states and 21618 transitions. [2021-07-13 18:58:11,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:58:11,377 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:11,377 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:11,377 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-07-13 18:58:11,377 INFO L430 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:11,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:11,378 INFO L82 PathProgramCache]: Analyzing trace with hash -418903319, now seen corresponding path program 16 times [2021-07-13 18:58:11,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:11,378 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604746831] [2021-07-13 18:58:11,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:12,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:12,169 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:12,169 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604746831] [2021-07-13 18:58:12,169 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604746831] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:12,169 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:12,169 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:58:12,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332852381] [2021-07-13 18:58:12,169 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:58:12,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:12,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:58:12,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:58:12,170 INFO L87 Difference]: Start difference. First operand 7956 states and 21618 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:15,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:15,298 INFO L93 Difference]: Finished difference Result 9092 states and 24275 transitions. [2021-07-13 18:58:15,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-13 18:58:15,299 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:58:15,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:15,311 INFO L225 Difference]: With dead ends: 9092 [2021-07-13 18:58:15,311 INFO L226 Difference]: Without dead ends: 8695 [2021-07-13 18:58:15,312 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 2719.3ms TimeCoverageRelationStatistics Valid=635, Invalid=3025, Unknown=0, NotChecked=0, Total=3660 [2021-07-13 18:58:15,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8695 states. [2021-07-13 18:58:15,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8695 to 7915. [2021-07-13 18:58:15,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7915 states, 7914 states have (on average 2.7208743997978266) internal successors, (21533), 7914 states have internal predecessors, (21533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:15,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7915 states to 7915 states and 21533 transitions. [2021-07-13 18:58:15,476 INFO L78 Accepts]: Start accepts. Automaton has 7915 states and 21533 transitions. Word has length 119 [2021-07-13 18:58:15,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:15,477 INFO L482 AbstractCegarLoop]: Abstraction has 7915 states and 21533 transitions. [2021-07-13 18:58:15,477 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:15,477 INFO L276 IsEmpty]: Start isEmpty. Operand 7915 states and 21533 transitions. [2021-07-13 18:58:15,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:58:15,486 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:15,486 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:15,486 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-07-13 18:58:15,486 INFO L430 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:15,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:15,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1735789657, now seen corresponding path program 17 times [2021-07-13 18:58:15,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:15,487 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717717320] [2021-07-13 18:58:15,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:16,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:16,194 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:16,194 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717717320] [2021-07-13 18:58:16,194 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717717320] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:16,194 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:16,194 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:58:16,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125440471] [2021-07-13 18:58:16,194 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:58:16,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:16,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:58:16,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:58:16,195 INFO L87 Difference]: Start difference. First operand 7915 states and 21533 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:17,410 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2021-07-13 18:58:17,561 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-07-13 18:58:17,776 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-07-13 18:58:19,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:19,414 INFO L93 Difference]: Finished difference Result 8778 states and 23446 transitions. [2021-07-13 18:58:19,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 18:58:19,415 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:58:19,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:19,426 INFO L225 Difference]: With dead ends: 8778 [2021-07-13 18:58:19,426 INFO L226 Difference]: Without dead ends: 8444 [2021-07-13 18:58:19,426 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 2706.2ms TimeCoverageRelationStatistics Valid=596, Invalid=2826, Unknown=0, NotChecked=0, Total=3422 [2021-07-13 18:58:19,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8444 states. [2021-07-13 18:58:19,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8444 to 7969. [2021-07-13 18:58:19,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7969 states, 7968 states have (on average 2.719628514056225) internal successors, (21670), 7968 states have internal predecessors, (21670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:19,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7969 states to 7969 states and 21670 transitions. [2021-07-13 18:58:19,547 INFO L78 Accepts]: Start accepts. Automaton has 7969 states and 21670 transitions. Word has length 119 [2021-07-13 18:58:19,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:19,547 INFO L482 AbstractCegarLoop]: Abstraction has 7969 states and 21670 transitions. [2021-07-13 18:58:19,547 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:19,547 INFO L276 IsEmpty]: Start isEmpty. Operand 7969 states and 21670 transitions. [2021-07-13 18:58:19,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:58:19,558 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:19,558 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:19,558 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-07-13 18:58:19,558 INFO L430 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:19,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:19,558 INFO L82 PathProgramCache]: Analyzing trace with hash -2039816869, now seen corresponding path program 18 times [2021-07-13 18:58:19,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:19,558 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320403308] [2021-07-13 18:58:19,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:20,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:20,245 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:20,245 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320403308] [2021-07-13 18:58:20,245 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320403308] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:20,245 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:20,245 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:58:20,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421900477] [2021-07-13 18:58:20,246 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:58:20,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:20,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:58:20,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:58:20,246 INFO L87 Difference]: Start difference. First operand 7969 states and 21670 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:21,354 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2021-07-13 18:58:21,532 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-07-13 18:58:21,701 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-07-13 18:58:22,742 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-07-13 18:58:23,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:23,515 INFO L93 Difference]: Finished difference Result 8779 states and 23433 transitions. [2021-07-13 18:58:23,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 18:58:23,515 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:58:23,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:23,526 INFO L225 Difference]: With dead ends: 8779 [2021-07-13 18:58:23,526 INFO L226 Difference]: Without dead ends: 8458 [2021-07-13 18:58:23,527 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 2858.0ms TimeCoverageRelationStatistics Valid=623, Invalid=2917, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 18:58:23,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8458 states. [2021-07-13 18:58:23,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8458 to 7979. [2021-07-13 18:58:23,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7979 states, 7978 states have (on average 2.7188518425670596) internal successors, (21691), 7978 states have internal predecessors, (21691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:23,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7979 states to 7979 states and 21691 transitions. [2021-07-13 18:58:23,651 INFO L78 Accepts]: Start accepts. Automaton has 7979 states and 21691 transitions. Word has length 119 [2021-07-13 18:58:23,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:23,651 INFO L482 AbstractCegarLoop]: Abstraction has 7979 states and 21691 transitions. [2021-07-13 18:58:23,651 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:23,651 INFO L276 IsEmpty]: Start isEmpty. Operand 7979 states and 21691 transitions. [2021-07-13 18:58:23,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:58:23,662 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:23,663 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:23,663 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-07-13 18:58:23,663 INFO L430 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:23,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:23,663 INFO L82 PathProgramCache]: Analyzing trace with hash -59965065, now seen corresponding path program 19 times [2021-07-13 18:58:23,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:23,663 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966075512] [2021-07-13 18:58:23,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:24,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:24,368 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:24,369 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966075512] [2021-07-13 18:58:24,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966075512] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:24,369 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:24,369 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:58:24,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557497273] [2021-07-13 18:58:24,369 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:58:24,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:24,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:58:24,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:58:24,370 INFO L87 Difference]: Start difference. First operand 7979 states and 21691 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:25,632 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-07-13 18:58:27,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:27,292 INFO L93 Difference]: Finished difference Result 8699 states and 23243 transitions. [2021-07-13 18:58:27,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 18:58:27,293 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:58:27,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:27,303 INFO L225 Difference]: With dead ends: 8699 [2021-07-13 18:58:27,303 INFO L226 Difference]: Without dead ends: 8217 [2021-07-13 18:58:27,304 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 2627.6ms TimeCoverageRelationStatistics Valid=606, Invalid=2934, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 18:58:27,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8217 states. [2021-07-13 18:58:27,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8217 to 7848. [2021-07-13 18:58:27,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7848 states, 7847 states have (on average 2.722059385752517) internal successors, (21360), 7847 states have internal predecessors, (21360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:27,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7848 states to 7848 states and 21360 transitions. [2021-07-13 18:58:27,422 INFO L78 Accepts]: Start accepts. Automaton has 7848 states and 21360 transitions. Word has length 119 [2021-07-13 18:58:27,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:27,422 INFO L482 AbstractCegarLoop]: Abstraction has 7848 states and 21360 transitions. [2021-07-13 18:58:27,422 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:27,422 INFO L276 IsEmpty]: Start isEmpty. Operand 7848 states and 21360 transitions. [2021-07-13 18:58:27,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:58:27,432 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:27,432 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:27,432 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-07-13 18:58:27,432 INFO L430 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:27,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:27,433 INFO L82 PathProgramCache]: Analyzing trace with hash 544085611, now seen corresponding path program 20 times [2021-07-13 18:58:27,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:27,433 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169244105] [2021-07-13 18:58:27,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:27,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:28,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:28,182 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:28,182 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169244105] [2021-07-13 18:58:28,182 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169244105] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:28,182 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:28,182 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:58:28,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358949138] [2021-07-13 18:58:28,182 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:58:28,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:28,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:58:28,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:58:28,183 INFO L87 Difference]: Start difference. First operand 7848 states and 21360 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:29,468 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-07-13 18:58:29,746 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-07-13 18:58:31,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:31,113 INFO L93 Difference]: Finished difference Result 9159 states and 24622 transitions. [2021-07-13 18:58:31,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-13 18:58:31,113 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:58:31,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:31,126 INFO L225 Difference]: With dead ends: 9159 [2021-07-13 18:58:31,126 INFO L226 Difference]: Without dead ends: 8939 [2021-07-13 18:58:31,127 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 2618.0ms TimeCoverageRelationStatistics Valid=506, Invalid=2574, Unknown=0, NotChecked=0, Total=3080 [2021-07-13 18:58:31,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8939 states. [2021-07-13 18:58:31,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8939 to 8184. [2021-07-13 18:58:31,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8184 states, 8183 states have (on average 2.71245264572895) internal successors, (22196), 8183 states have internal predecessors, (22196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:31,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8184 states to 8184 states and 22196 transitions. [2021-07-13 18:58:31,256 INFO L78 Accepts]: Start accepts. Automaton has 8184 states and 22196 transitions. Word has length 119 [2021-07-13 18:58:31,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:31,256 INFO L482 AbstractCegarLoop]: Abstraction has 8184 states and 22196 transitions. [2021-07-13 18:58:31,256 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:31,256 INFO L276 IsEmpty]: Start isEmpty. Operand 8184 states and 22196 transitions. [2021-07-13 18:58:31,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:58:31,267 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:31,267 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:31,267 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-07-13 18:58:31,267 INFO L430 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:31,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:31,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1547932809, now seen corresponding path program 21 times [2021-07-13 18:58:31,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:31,267 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362701193] [2021-07-13 18:58:31,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:31,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:31,911 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:31,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362701193] [2021-07-13 18:58:31,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362701193] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:31,911 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:31,911 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:58:31,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854472065] [2021-07-13 18:58:31,912 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:58:31,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:31,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:58:31,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:58:31,912 INFO L87 Difference]: Start difference. First operand 8184 states and 22196 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:33,243 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-07-13 18:58:33,381 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2021-07-13 18:58:34,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:34,753 INFO L93 Difference]: Finished difference Result 9363 states and 25076 transitions. [2021-07-13 18:58:34,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-13 18:58:34,753 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:58:34,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:34,766 INFO L225 Difference]: With dead ends: 9363 [2021-07-13 18:58:34,766 INFO L226 Difference]: Without dead ends: 8887 [2021-07-13 18:58:34,766 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 2418.9ms TimeCoverageRelationStatistics Valid=535, Invalid=2657, Unknown=0, NotChecked=0, Total=3192 [2021-07-13 18:58:34,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8887 states. [2021-07-13 18:58:34,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8887 to 8256. [2021-07-13 18:58:34,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8256 states, 8255 states have (on average 2.7033313143549362) internal successors, (22316), 8255 states have internal predecessors, (22316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:34,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8256 states to 8256 states and 22316 transitions. [2021-07-13 18:58:34,877 INFO L78 Accepts]: Start accepts. Automaton has 8256 states and 22316 transitions. Word has length 119 [2021-07-13 18:58:34,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:34,877 INFO L482 AbstractCegarLoop]: Abstraction has 8256 states and 22316 transitions. [2021-07-13 18:58:34,877 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:34,877 INFO L276 IsEmpty]: Start isEmpty. Operand 8256 states and 22316 transitions. [2021-07-13 18:58:34,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:58:34,886 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:34,886 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:34,886 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-07-13 18:58:34,886 INFO L430 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:34,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:34,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1538609123, now seen corresponding path program 22 times [2021-07-13 18:58:34,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:34,887 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17324339] [2021-07-13 18:58:34,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:35,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:35,562 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:35,562 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17324339] [2021-07-13 18:58:35,563 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17324339] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:35,563 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:35,563 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:58:35,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600887423] [2021-07-13 18:58:35,563 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:58:35,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:35,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:58:35,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:58:35,564 INFO L87 Difference]: Start difference. First operand 8256 states and 22316 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:36,750 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2021-07-13 18:58:38,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:38,377 INFO L93 Difference]: Finished difference Result 9020 states and 24153 transitions. [2021-07-13 18:58:38,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 18:58:38,378 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:58:38,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:38,390 INFO L225 Difference]: With dead ends: 9020 [2021-07-13 18:58:38,390 INFO L226 Difference]: Without dead ends: 8479 [2021-07-13 18:58:38,390 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 2484.1ms TimeCoverageRelationStatistics Valid=537, Invalid=2769, Unknown=0, NotChecked=0, Total=3306 [2021-07-13 18:58:38,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8479 states. [2021-07-13 18:58:38,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8479 to 7848. [2021-07-13 18:58:38,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7848 states, 7847 states have (on average 2.7174716452147316) internal successors, (21324), 7847 states have internal predecessors, (21324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:38,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7848 states to 7848 states and 21324 transitions. [2021-07-13 18:58:38,497 INFO L78 Accepts]: Start accepts. Automaton has 7848 states and 21324 transitions. Word has length 119 [2021-07-13 18:58:38,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:38,497 INFO L482 AbstractCegarLoop]: Abstraction has 7848 states and 21324 transitions. [2021-07-13 18:58:38,498 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:38,498 INFO L276 IsEmpty]: Start isEmpty. Operand 7848 states and 21324 transitions. [2021-07-13 18:58:38,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:58:38,506 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:38,506 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:38,506 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-07-13 18:58:38,507 INFO L430 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:38,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:38,507 INFO L82 PathProgramCache]: Analyzing trace with hash -2143710727, now seen corresponding path program 23 times [2021-07-13 18:58:38,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:38,507 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515088320] [2021-07-13 18:58:38,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:39,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:39,122 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:39,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515088320] [2021-07-13 18:58:39,122 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515088320] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:39,122 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:39,122 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:58:39,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413424699] [2021-07-13 18:58:39,123 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:58:39,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:39,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:58:39,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:58:39,123 INFO L87 Difference]: Start difference. First operand 7848 states and 21324 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:40,453 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-07-13 18:58:40,971 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-07-13 18:58:41,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:41,994 INFO L93 Difference]: Finished difference Result 8528 states and 22983 transitions. [2021-07-13 18:58:41,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-13 18:58:41,995 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:58:41,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:42,006 INFO L225 Difference]: With dead ends: 8528 [2021-07-13 18:58:42,006 INFO L226 Difference]: Without dead ends: 8267 [2021-07-13 18:58:42,007 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 2522.4ms TimeCoverageRelationStatistics Valid=523, Invalid=2557, Unknown=0, NotChecked=0, Total=3080 [2021-07-13 18:58:42,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8267 states. [2021-07-13 18:58:42,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8267 to 7812. [2021-07-13 18:58:42,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7812 states, 7811 states have (on average 2.7207783894507744) internal successors, (21252), 7811 states have internal predecessors, (21252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:42,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7812 states to 7812 states and 21252 transitions. [2021-07-13 18:58:42,108 INFO L78 Accepts]: Start accepts. Automaton has 7812 states and 21252 transitions. Word has length 119 [2021-07-13 18:58:42,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:42,108 INFO L482 AbstractCegarLoop]: Abstraction has 7812 states and 21252 transitions. [2021-07-13 18:58:42,108 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:42,109 INFO L276 IsEmpty]: Start isEmpty. Operand 7812 states and 21252 transitions. [2021-07-13 18:58:42,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:58:42,117 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:42,117 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:42,117 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-07-13 18:58:42,117 INFO L430 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:42,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:42,117 INFO L82 PathProgramCache]: Analyzing trace with hash 648999047, now seen corresponding path program 24 times [2021-07-13 18:58:42,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:42,118 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412189762] [2021-07-13 18:58:42,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:42,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:42,738 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:42,738 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412189762] [2021-07-13 18:58:42,738 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412189762] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:42,738 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:42,738 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:58:42,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47263023] [2021-07-13 18:58:42,738 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:58:42,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:42,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:58:42,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:58:42,739 INFO L87 Difference]: Start difference. First operand 7812 states and 21252 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:45,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:45,226 INFO L93 Difference]: Finished difference Result 9413 states and 25272 transitions. [2021-07-13 18:58:45,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-13 18:58:45,227 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:58:45,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:45,239 INFO L225 Difference]: With dead ends: 9413 [2021-07-13 18:58:45,239 INFO L226 Difference]: Without dead ends: 9193 [2021-07-13 18:58:45,240 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 2041.2ms TimeCoverageRelationStatistics Valid=495, Invalid=2585, Unknown=0, NotChecked=0, Total=3080 [2021-07-13 18:58:45,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9193 states. [2021-07-13 18:58:45,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9193 to 8328. [2021-07-13 18:58:45,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8328 states, 8327 states have (on average 2.7131019574876905) internal successors, (22592), 8327 states have internal predecessors, (22592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:45,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8328 states to 8328 states and 22592 transitions. [2021-07-13 18:58:45,353 INFO L78 Accepts]: Start accepts. Automaton has 8328 states and 22592 transitions. Word has length 119 [2021-07-13 18:58:45,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:45,353 INFO L482 AbstractCegarLoop]: Abstraction has 8328 states and 22592 transitions. [2021-07-13 18:58:45,353 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:45,353 INFO L276 IsEmpty]: Start isEmpty. Operand 8328 states and 22592 transitions. [2021-07-13 18:58:45,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:58:45,363 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:45,363 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:45,363 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-07-13 18:58:45,363 INFO L430 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:45,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:45,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1652846245, now seen corresponding path program 25 times [2021-07-13 18:58:45,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:45,364 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770505026] [2021-07-13 18:58:45,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:45,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:45,859 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:45,859 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770505026] [2021-07-13 18:58:45,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770505026] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:45,860 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:45,860 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:58:45,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311855381] [2021-07-13 18:58:45,860 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:58:45,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:45,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:58:45,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:58:45,860 INFO L87 Difference]: Start difference. First operand 8328 states and 22592 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:48,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:48,043 INFO L93 Difference]: Finished difference Result 9617 states and 25726 transitions. [2021-07-13 18:58:48,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-13 18:58:48,044 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:58:48,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:48,059 INFO L225 Difference]: With dead ends: 9617 [2021-07-13 18:58:48,059 INFO L226 Difference]: Without dead ends: 9141 [2021-07-13 18:58:48,059 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 1786.8ms TimeCoverageRelationStatistics Valid=521, Invalid=2671, Unknown=0, NotChecked=0, Total=3192 [2021-07-13 18:58:48,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9141 states. [2021-07-13 18:58:48,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9141 to 8400. [2021-07-13 18:58:48,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8400 states, 8399 states have (on average 2.70413144421955) internal successors, (22712), 8399 states have internal predecessors, (22712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:48,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8400 states to 8400 states and 22712 transitions. [2021-07-13 18:58:48,180 INFO L78 Accepts]: Start accepts. Automaton has 8400 states and 22712 transitions. Word has length 119 [2021-07-13 18:58:48,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:48,180 INFO L482 AbstractCegarLoop]: Abstraction has 8400 states and 22712 transitions. [2021-07-13 18:58:48,181 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:48,181 INFO L276 IsEmpty]: Start isEmpty. Operand 8400 states and 22712 transitions. [2021-07-13 18:58:48,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:58:48,190 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:48,190 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:48,190 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-07-13 18:58:48,190 INFO L430 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:48,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:48,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1433695687, now seen corresponding path program 26 times [2021-07-13 18:58:48,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:48,191 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46627462] [2021-07-13 18:58:48,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:48,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:48,829 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:48,829 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46627462] [2021-07-13 18:58:48,830 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46627462] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:48,830 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:48,830 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:58:48,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267677926] [2021-07-13 18:58:48,830 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:58:48,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:48,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:58:48,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:58:48,831 INFO L87 Difference]: Start difference. First operand 8400 states and 22712 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:51,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:51,459 INFO L93 Difference]: Finished difference Result 9274 states and 24803 transitions. [2021-07-13 18:58:51,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 18:58:51,460 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:58:51,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:51,472 INFO L225 Difference]: With dead ends: 9274 [2021-07-13 18:58:51,472 INFO L226 Difference]: Without dead ends: 8733 [2021-07-13 18:58:51,473 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 2260.7ms TimeCoverageRelationStatistics Valid=528, Invalid=2778, Unknown=0, NotChecked=0, Total=3306 [2021-07-13 18:58:51,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8733 states. [2021-07-13 18:58:51,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8733 to 7992. [2021-07-13 18:58:51,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7992 states, 7991 states have (on average 2.7000375422350142) internal successors, (21576), 7991 states have internal predecessors, (21576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:51,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7992 states to 7992 states and 21576 transitions. [2021-07-13 18:58:51,599 INFO L78 Accepts]: Start accepts. Automaton has 7992 states and 21576 transitions. Word has length 119 [2021-07-13 18:58:51,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:51,599 INFO L482 AbstractCegarLoop]: Abstraction has 7992 states and 21576 transitions. [2021-07-13 18:58:51,599 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:51,599 INFO L276 IsEmpty]: Start isEmpty. Operand 7992 states and 21576 transitions. [2021-07-13 18:58:51,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:58:51,610 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:51,610 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:51,610 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-07-13 18:58:51,610 INFO L430 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:51,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:51,610 INFO L82 PathProgramCache]: Analyzing trace with hash -776764203, now seen corresponding path program 27 times [2021-07-13 18:58:51,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:51,610 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094748996] [2021-07-13 18:58:51,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:52,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:52,248 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:52,248 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094748996] [2021-07-13 18:58:52,248 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094748996] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:52,248 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:52,248 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:58:52,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667293387] [2021-07-13 18:58:52,249 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:58:52,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:52,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:58:52,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:58:52,249 INFO L87 Difference]: Start difference. First operand 7992 states and 21576 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:55,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:55,275 INFO L93 Difference]: Finished difference Result 8802 states and 23544 transitions. [2021-07-13 18:58:55,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-13 18:58:55,275 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:58:55,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:55,288 INFO L225 Difference]: With dead ends: 8802 [2021-07-13 18:58:55,288 INFO L226 Difference]: Without dead ends: 8372 [2021-07-13 18:58:55,288 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 2468.6ms TimeCoverageRelationStatistics Valid=495, Invalid=2585, Unknown=0, NotChecked=0, Total=3080 [2021-07-13 18:58:55,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8372 states. [2021-07-13 18:58:55,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8372 to 7812. [2021-07-13 18:58:55,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7812 states, 7811 states have (on average 2.716169504544873) internal successors, (21216), 7811 states have internal predecessors, (21216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:55,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7812 states to 7812 states and 21216 transitions. [2021-07-13 18:58:55,405 INFO L78 Accepts]: Start accepts. Automaton has 7812 states and 21216 transitions. Word has length 119 [2021-07-13 18:58:55,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:55,405 INFO L482 AbstractCegarLoop]: Abstraction has 7812 states and 21216 transitions. [2021-07-13 18:58:55,405 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:55,405 INFO L276 IsEmpty]: Start isEmpty. Operand 7812 states and 21216 transitions. [2021-07-13 18:58:55,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:58:55,414 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:55,415 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:55,415 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-07-13 18:58:55,415 INFO L430 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:55,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:55,415 INFO L82 PathProgramCache]: Analyzing trace with hash 902268779, now seen corresponding path program 28 times [2021-07-13 18:58:55,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:55,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031858533] [2021-07-13 18:58:55,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:56,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:56,058 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:56,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031858533] [2021-07-13 18:58:56,058 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031858533] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:56,059 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:56,059 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:58:56,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699084463] [2021-07-13 18:58:56,059 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:58:56,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:56,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:58:56,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:58:56,059 INFO L87 Difference]: Start difference. First operand 7812 states and 21216 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:57,815 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-07-13 18:58:58,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:58:58,851 INFO L93 Difference]: Finished difference Result 8507 states and 22909 transitions. [2021-07-13 18:58:58,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-13 18:58:58,852 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:58:58,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:58:58,865 INFO L225 Difference]: With dead ends: 8507 [2021-07-13 18:58:58,865 INFO L226 Difference]: Without dead ends: 8282 [2021-07-13 18:58:58,866 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 2355.6ms TimeCoverageRelationStatistics Valid=523, Invalid=2557, Unknown=0, NotChecked=0, Total=3080 [2021-07-13 18:58:58,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8282 states. [2021-07-13 18:58:58,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8282 to 7817. [2021-07-13 18:58:58,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7817 states, 7816 states have (on average 2.7154554759467757) internal successors, (21224), 7816 states have internal predecessors, (21224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:58,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7817 states to 7817 states and 21224 transitions. [2021-07-13 18:58:58,989 INFO L78 Accepts]: Start accepts. Automaton has 7817 states and 21224 transitions. Word has length 119 [2021-07-13 18:58:58,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:58:58,989 INFO L482 AbstractCegarLoop]: Abstraction has 7817 states and 21224 transitions. [2021-07-13 18:58:58,989 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:58:58,989 INFO L276 IsEmpty]: Start isEmpty. Operand 7817 states and 21224 transitions. [2021-07-13 18:58:58,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:58:58,999 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:58:58,999 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:58:58,999 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-07-13 18:58:58,999 INFO L430 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:58:59,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:58:59,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1241622713, now seen corresponding path program 29 times [2021-07-13 18:58:59,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:58:59,000 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971616272] [2021-07-13 18:58:59,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:58:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:58:59,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:58:59,768 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:58:59,768 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971616272] [2021-07-13 18:58:59,768 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971616272] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:58:59,768 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:58:59,768 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:58:59,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573174573] [2021-07-13 18:58:59,768 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:58:59,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:58:59,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:58:59,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:58:59,769 INFO L87 Difference]: Start difference. First operand 7817 states and 21224 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:01,434 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-13 18:59:02,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:02,809 INFO L93 Difference]: Finished difference Result 8527 states and 22959 transitions. [2021-07-13 18:59:02,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-13 18:59:02,809 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:59:02,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:02,822 INFO L225 Difference]: With dead ends: 8527 [2021-07-13 18:59:02,822 INFO L226 Difference]: Without dead ends: 8236 [2021-07-13 18:59:02,823 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 2660.7ms TimeCoverageRelationStatistics Valid=506, Invalid=2574, Unknown=0, NotChecked=0, Total=3080 [2021-07-13 18:59:02,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8236 states. [2021-07-13 18:59:02,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8236 to 7776. [2021-07-13 18:59:02,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7776 states, 7775 states have (on average 2.7194855305466237) internal successors, (21144), 7775 states have internal predecessors, (21144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:02,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7776 states to 7776 states and 21144 transitions. [2021-07-13 18:59:02,940 INFO L78 Accepts]: Start accepts. Automaton has 7776 states and 21144 transitions. Word has length 119 [2021-07-13 18:59:02,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:02,940 INFO L482 AbstractCegarLoop]: Abstraction has 7776 states and 21144 transitions. [2021-07-13 18:59:02,940 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:02,940 INFO L276 IsEmpty]: Start isEmpty. Operand 7776 states and 21144 transitions. [2021-07-13 18:59:02,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:59:02,949 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:02,950 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:02,950 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-07-13 18:59:02,950 INFO L430 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:02,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:02,950 INFO L82 PathProgramCache]: Analyzing trace with hash 980078989, now seen corresponding path program 30 times [2021-07-13 18:59:02,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:02,950 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756992089] [2021-07-13 18:59:02,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:02,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:03,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:03,602 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:03,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756992089] [2021-07-13 18:59:03,602 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756992089] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:03,602 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:03,602 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:59:03,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940988540] [2021-07-13 18:59:03,603 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:59:03,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:03,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:59:03,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:59:03,603 INFO L87 Difference]: Start difference. First operand 7776 states and 21144 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:06,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:06,449 INFO L93 Difference]: Finished difference Result 10086 states and 27016 transitions. [2021-07-13 18:59:06,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-13 18:59:06,450 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:59:06,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:06,464 INFO L225 Difference]: With dead ends: 10086 [2021-07-13 18:59:06,465 INFO L226 Difference]: Without dead ends: 9866 [2021-07-13 18:59:06,465 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 2366.9ms TimeCoverageRelationStatistics Valid=490, Invalid=2590, Unknown=0, NotChecked=0, Total=3080 [2021-07-13 18:59:06,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9866 states. [2021-07-13 18:59:06,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9866 to 8148. [2021-07-13 18:59:06,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8148 states, 8147 states have (on average 2.715600834663066) internal successors, (22124), 8147 states have internal predecessors, (22124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:06,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8148 states to 8148 states and 22124 transitions. [2021-07-13 18:59:06,604 INFO L78 Accepts]: Start accepts. Automaton has 8148 states and 22124 transitions. Word has length 119 [2021-07-13 18:59:06,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:06,604 INFO L482 AbstractCegarLoop]: Abstraction has 8148 states and 22124 transitions. [2021-07-13 18:59:06,605 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:06,605 INFO L276 IsEmpty]: Start isEmpty. Operand 8148 states and 22124 transitions. [2021-07-13 18:59:06,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:59:06,615 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:06,615 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:06,615 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-07-13 18:59:06,615 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]=== [2021-07-13 18:59:06,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:06,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1983926187, now seen corresponding path program 31 times [2021-07-13 18:59:06,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:06,615 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343564278] [2021-07-13 18:59:06,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:07,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:07,330 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:07,330 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343564278] [2021-07-13 18:59:07,330 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343564278] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:07,330 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:07,330 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:59:07,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763486683] [2021-07-13 18:59:07,331 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:59:07,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:07,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:59:07,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:59:07,331 INFO L87 Difference]: Start difference. First operand 8148 states and 22124 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:09,391 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2021-07-13 18:59:10,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:10,470 INFO L93 Difference]: Finished difference Result 10290 states and 27470 transitions. [2021-07-13 18:59:10,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-13 18:59:10,470 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:59:10,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:10,485 INFO L225 Difference]: With dead ends: 10290 [2021-07-13 18:59:10,485 INFO L226 Difference]: Without dead ends: 9814 [2021-07-13 18:59:10,486 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 2541.3ms TimeCoverageRelationStatistics Valid=513, Invalid=2679, Unknown=0, NotChecked=0, Total=3192 [2021-07-13 18:59:10,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9814 states. [2021-07-13 18:59:10,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9814 to 8220. [2021-07-13 18:59:10,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8220 states, 8219 states have (on average 2.706411972259399) internal successors, (22244), 8219 states have internal predecessors, (22244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:10,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8220 states to 8220 states and 22244 transitions. [2021-07-13 18:59:10,691 INFO L78 Accepts]: Start accepts. Automaton has 8220 states and 22244 transitions. Word has length 119 [2021-07-13 18:59:10,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:10,692 INFO L482 AbstractCegarLoop]: Abstraction has 8220 states and 22244 transitions. [2021-07-13 18:59:10,692 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:10,692 INFO L276 IsEmpty]: Start isEmpty. Operand 8220 states and 22244 transitions. [2021-07-13 18:59:10,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:59:10,702 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:10,702 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:10,702 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-07-13 18:59:10,702 INFO L430 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:10,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:10,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1102615745, now seen corresponding path program 32 times [2021-07-13 18:59:10,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:10,703 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878805243] [2021-07-13 18:59:10,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:11,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:11,371 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:11,371 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878805243] [2021-07-13 18:59:11,371 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878805243] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:11,371 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:11,371 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:59:11,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855443068] [2021-07-13 18:59:11,371 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:59:11,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:11,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:59:11,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:59:11,372 INFO L87 Difference]: Start difference. First operand 8220 states and 22244 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:13,399 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2021-07-13 18:59:13,679 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2021-07-13 18:59:14,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:14,600 INFO L93 Difference]: Finished difference Result 9947 states and 26547 transitions. [2021-07-13 18:59:14,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 18:59:14,601 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:59:14,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:14,612 INFO L225 Difference]: With dead ends: 9947 [2021-07-13 18:59:14,613 INFO L226 Difference]: Without dead ends: 9406 [2021-07-13 18:59:14,613 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 2710.8ms TimeCoverageRelationStatistics Valid=519, Invalid=2787, Unknown=0, NotChecked=0, Total=3306 [2021-07-13 18:59:14,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9406 states. [2021-07-13 18:59:14,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9406 to 7567. [2021-07-13 18:59:14,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7567 states, 7566 states have (on average 2.6998413957176846) internal successors, (20427), 7566 states have internal predecessors, (20427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:14,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7567 states to 7567 states and 20427 transitions. [2021-07-13 18:59:14,728 INFO L78 Accepts]: Start accepts. Automaton has 7567 states and 20427 transitions. Word has length 119 [2021-07-13 18:59:14,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:14,728 INFO L482 AbstractCegarLoop]: Abstraction has 7567 states and 20427 transitions. [2021-07-13 18:59:14,728 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:14,728 INFO L276 IsEmpty]: Start isEmpty. Operand 7567 states and 20427 transitions. [2021-07-13 18:59:14,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:59:14,737 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:14,737 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:14,738 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-07-13 18:59:14,738 INFO L430 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:14,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:14,738 INFO L82 PathProgramCache]: Analyzing trace with hash -445684261, now seen corresponding path program 33 times [2021-07-13 18:59:14,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:14,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902870800] [2021-07-13 18:59:14,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:15,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:15,366 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:15,366 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902870800] [2021-07-13 18:59:15,366 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902870800] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:15,366 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:15,366 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:59:15,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471191275] [2021-07-13 18:59:15,366 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:59:15,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:15,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:59:15,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:59:15,367 INFO L87 Difference]: Start difference. First operand 7567 states and 20427 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:18,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:18,383 INFO L93 Difference]: Finished difference Result 9314 states and 24797 transitions. [2021-07-13 18:59:18,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-13 18:59:18,383 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:59:18,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:18,395 INFO L225 Difference]: With dead ends: 9314 [2021-07-13 18:59:18,395 INFO L226 Difference]: Without dead ends: 8884 [2021-07-13 18:59:18,395 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 2466.2ms TimeCoverageRelationStatistics Valid=490, Invalid=2590, Unknown=0, NotChecked=0, Total=3080 [2021-07-13 18:59:18,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8884 states. [2021-07-13 18:59:18,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8884 to 7387. [2021-07-13 18:59:18,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7387 states, 7386 states have (on average 2.697400487408611) internal successors, (19923), 7386 states have internal predecessors, (19923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:18,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7387 states to 7387 states and 19923 transitions. [2021-07-13 18:59:18,508 INFO L78 Accepts]: Start accepts. Automaton has 7387 states and 19923 transitions. Word has length 119 [2021-07-13 18:59:18,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:18,508 INFO L482 AbstractCegarLoop]: Abstraction has 7387 states and 19923 transitions. [2021-07-13 18:59:18,508 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:18,509 INFO L276 IsEmpty]: Start isEmpty. Operand 7387 states and 19923 transitions. [2021-07-13 18:59:18,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:59:18,518 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:18,518 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:18,518 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-07-13 18:59:18,518 INFO L430 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:18,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:18,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1012528597, now seen corresponding path program 34 times [2021-07-13 18:59:18,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:18,519 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995770123] [2021-07-13 18:59:18,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:19,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:19,148 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:19,148 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995770123] [2021-07-13 18:59:19,148 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995770123] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:19,148 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:19,148 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:59:19,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398462500] [2021-07-13 18:59:19,149 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:59:19,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:19,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:59:19,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:59:19,149 INFO L87 Difference]: Start difference. First operand 7387 states and 19923 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:21,490 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-07-13 18:59:21,654 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-07-13 18:59:22,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:22,432 INFO L93 Difference]: Finished difference Result 9452 states and 24974 transitions. [2021-07-13 18:59:22,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 18:59:22,433 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:59:22,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:22,444 INFO L225 Difference]: With dead ends: 9452 [2021-07-13 18:59:22,444 INFO L226 Difference]: Without dead ends: 8527 [2021-07-13 18:59:22,444 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 641 ImplicationChecksByTransitivity, 2700.3ms TimeCoverageRelationStatistics Valid=539, Invalid=2883, Unknown=0, NotChecked=0, Total=3422 [2021-07-13 18:59:22,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8527 states. [2021-07-13 18:59:22,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8527 to 6802. [2021-07-13 18:59:22,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6802 states, 6801 states have (on average 2.7044552271724744) internal successors, (18393), 6801 states have internal predecessors, (18393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:22,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6802 states to 6802 states and 18393 transitions. [2021-07-13 18:59:22,557 INFO L78 Accepts]: Start accepts. Automaton has 6802 states and 18393 transitions. Word has length 119 [2021-07-13 18:59:22,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:22,557 INFO L482 AbstractCegarLoop]: Abstraction has 6802 states and 18393 transitions. [2021-07-13 18:59:22,557 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:22,557 INFO L276 IsEmpty]: Start isEmpty. Operand 6802 states and 18393 transitions. [2021-07-13 18:59:22,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:59:22,566 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:22,566 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:22,566 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-07-13 18:59:22,566 INFO L430 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:22,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:22,566 INFO L82 PathProgramCache]: Analyzing trace with hash 509963547, now seen corresponding path program 35 times [2021-07-13 18:59:22,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:22,566 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133265961] [2021-07-13 18:59:22,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:23,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:23,194 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:23,194 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133265961] [2021-07-13 18:59:23,194 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133265961] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:23,194 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:23,194 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:59:23,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367555963] [2021-07-13 18:59:23,194 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:59:23,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:23,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:59:23,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:59:23,195 INFO L87 Difference]: Start difference. First operand 6802 states and 18393 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:24,630 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-13 18:59:24,772 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-07-13 18:59:25,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:25,931 INFO L93 Difference]: Finished difference Result 7632 states and 20408 transitions. [2021-07-13 18:59:25,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-13 18:59:25,932 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:59:25,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:25,941 INFO L225 Difference]: With dead ends: 7632 [2021-07-13 18:59:25,941 INFO L226 Difference]: Without dead ends: 7407 [2021-07-13 18:59:25,941 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 2372.3ms TimeCoverageRelationStatistics Valid=523, Invalid=2557, Unknown=0, NotChecked=0, Total=3080 [2021-07-13 18:59:25,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7407 states. [2021-07-13 18:59:26,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7407 to 6822. [2021-07-13 18:59:26,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6822 states, 6821 states have (on average 2.703415921419147) internal successors, (18440), 6821 states have internal predecessors, (18440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:26,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6822 states to 6822 states and 18440 transitions. [2021-07-13 18:59:26,024 INFO L78 Accepts]: Start accepts. Automaton has 6822 states and 18440 transitions. Word has length 119 [2021-07-13 18:59:26,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:26,024 INFO L482 AbstractCegarLoop]: Abstraction has 6822 states and 18440 transitions. [2021-07-13 18:59:26,024 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:26,024 INFO L276 IsEmpty]: Start isEmpty. Operand 6822 states and 18440 transitions. [2021-07-13 18:59:26,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:59:26,031 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:26,031 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:26,031 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-07-13 18:59:26,032 INFO L430 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:26,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:26,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1633927945, now seen corresponding path program 36 times [2021-07-13 18:59:26,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:26,032 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574887272] [2021-07-13 18:59:26,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:26,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:26,827 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:26,827 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574887272] [2021-07-13 18:59:26,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574887272] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:26,827 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:26,827 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:59:26,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881321894] [2021-07-13 18:59:26,827 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:59:26,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:26,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:59:26,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:59:26,828 INFO L87 Difference]: Start difference. First operand 6822 states and 18440 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:28,574 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-07-13 18:59:29,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:29,585 INFO L93 Difference]: Finished difference Result 7657 states and 20466 transitions. [2021-07-13 18:59:29,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-13 18:59:29,585 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:59:29,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:29,594 INFO L225 Difference]: With dead ends: 7657 [2021-07-13 18:59:29,594 INFO L226 Difference]: Without dead ends: 7402 [2021-07-13 18:59:29,594 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 2430.1ms TimeCoverageRelationStatistics Valid=506, Invalid=2574, Unknown=0, NotChecked=0, Total=3080 [2021-07-13 18:59:29,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7402 states. [2021-07-13 18:59:29,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7402 to 6817. [2021-07-13 18:59:29,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6817 states, 6816 states have (on average 2.7034917840375585) internal successors, (18427), 6816 states have internal predecessors, (18427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:29,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6817 states to 6817 states and 18427 transitions. [2021-07-13 18:59:29,674 INFO L78 Accepts]: Start accepts. Automaton has 6817 states and 18427 transitions. Word has length 119 [2021-07-13 18:59:29,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:29,675 INFO L482 AbstractCegarLoop]: Abstraction has 6817 states and 18427 transitions. [2021-07-13 18:59:29,675 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:29,675 INFO L276 IsEmpty]: Start isEmpty. Operand 6817 states and 18427 transitions. [2021-07-13 18:59:29,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:59:29,683 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:29,683 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:29,683 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-07-13 18:59:29,683 INFO L430 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:29,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:29,683 INFO L82 PathProgramCache]: Analyzing trace with hash 453688539, now seen corresponding path program 37 times [2021-07-13 18:59:29,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:29,683 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937314080] [2021-07-13 18:59:29,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:30,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:30,339 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:30,339 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937314080] [2021-07-13 18:59:30,339 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937314080] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:30,339 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:30,339 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:59:30,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753131435] [2021-07-13 18:59:30,339 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:59:30,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:30,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:59:30,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:59:30,340 INFO L87 Difference]: Start difference. First operand 6817 states and 18427 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:32,041 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2021-07-13 18:59:33,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:33,129 INFO L93 Difference]: Finished difference Result 8055 states and 21328 transitions. [2021-07-13 18:59:33,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 18:59:33,130 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:59:33,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:33,140 INFO L225 Difference]: With dead ends: 8055 [2021-07-13 18:59:33,141 INFO L226 Difference]: Without dead ends: 7583 [2021-07-13 18:59:33,141 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 2434.2ms TimeCoverageRelationStatistics Valid=571, Invalid=2851, Unknown=0, NotChecked=0, Total=3422 [2021-07-13 18:59:33,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7583 states. [2021-07-13 18:59:33,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7583 to 6685. [2021-07-13 18:59:33,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6685 states, 6684 states have (on average 2.7060143626570916) internal successors, (18087), 6684 states have internal predecessors, (18087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:33,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6685 states to 6685 states and 18087 transitions. [2021-07-13 18:59:33,245 INFO L78 Accepts]: Start accepts. Automaton has 6685 states and 18087 transitions. Word has length 119 [2021-07-13 18:59:33,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:33,245 INFO L482 AbstractCegarLoop]: Abstraction has 6685 states and 18087 transitions. [2021-07-13 18:59:33,245 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:33,245 INFO L276 IsEmpty]: Start isEmpty. Operand 6685 states and 18087 transitions. [2021-07-13 18:59:33,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:59:33,253 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:33,253 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:33,253 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-07-13 18:59:33,253 INFO L430 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:33,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:33,253 INFO L82 PathProgramCache]: Analyzing trace with hash -401054229, now seen corresponding path program 38 times [2021-07-13 18:59:33,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:33,254 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551595443] [2021-07-13 18:59:33,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:33,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:33,885 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:33,885 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551595443] [2021-07-13 18:59:33,886 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551595443] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:33,886 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:33,886 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:59:33,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987838859] [2021-07-13 18:59:33,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:59:33,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:33,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:59:33,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:59:33,886 INFO L87 Difference]: Start difference. First operand 6685 states and 18087 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:36,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:36,679 INFO L93 Difference]: Finished difference Result 7585 states and 20128 transitions. [2021-07-13 18:59:36,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 18:59:36,680 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:59:36,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:36,689 INFO L225 Difference]: With dead ends: 7585 [2021-07-13 18:59:36,689 INFO L226 Difference]: Without dead ends: 7251 [2021-07-13 18:59:36,689 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 2316.7ms TimeCoverageRelationStatistics Valid=596, Invalid=2826, Unknown=0, NotChecked=0, Total=3422 [2021-07-13 18:59:36,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7251 states. [2021-07-13 18:59:36,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7251 to 6748. [2021-07-13 18:59:36,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6748 states, 6747 states have (on average 2.703720171928264) internal successors, (18242), 6747 states have internal predecessors, (18242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:36,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6748 states to 6748 states and 18242 transitions. [2021-07-13 18:59:36,782 INFO L78 Accepts]: Start accepts. Automaton has 6748 states and 18242 transitions. Word has length 119 [2021-07-13 18:59:36,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:36,782 INFO L482 AbstractCegarLoop]: Abstraction has 6748 states and 18242 transitions. [2021-07-13 18:59:36,782 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:36,782 INFO L276 IsEmpty]: Start isEmpty. Operand 6748 states and 18242 transitions. [2021-07-13 18:59:36,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:59:36,791 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:36,791 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:36,791 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-07-13 18:59:36,791 INFO L430 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:36,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:36,791 INFO L82 PathProgramCache]: Analyzing trace with hash 118306541, now seen corresponding path program 39 times [2021-07-13 18:59:36,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:36,791 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841646054] [2021-07-13 18:59:36,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:37,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:37,459 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:37,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841646054] [2021-07-13 18:59:37,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841646054] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:37,460 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:37,460 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:59:37,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020037825] [2021-07-13 18:59:37,460 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:59:37,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:37,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:59:37,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:59:37,461 INFO L87 Difference]: Start difference. First operand 6748 states and 18242 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:38,635 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-07-13 18:59:38,810 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-13 18:59:38,973 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-07-13 18:59:40,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:40,676 INFO L93 Difference]: Finished difference Result 7637 states and 20222 transitions. [2021-07-13 18:59:40,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 18:59:40,676 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:59:40,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:40,686 INFO L225 Difference]: With dead ends: 7637 [2021-07-13 18:59:40,686 INFO L226 Difference]: Without dead ends: 7316 [2021-07-13 18:59:40,687 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 663 ImplicationChecksByTransitivity, 2792.8ms TimeCoverageRelationStatistics Valid=623, Invalid=2917, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 18:59:40,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7316 states. [2021-07-13 18:59:40,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7316 to 6758. [2021-07-13 18:59:40,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6758 states, 6757 states have (on average 2.7028266982388636) internal successors, (18263), 6757 states have internal predecessors, (18263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:40,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6758 states to 6758 states and 18263 transitions. [2021-07-13 18:59:40,787 INFO L78 Accepts]: Start accepts. Automaton has 6758 states and 18263 transitions. Word has length 119 [2021-07-13 18:59:40,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:40,787 INFO L482 AbstractCegarLoop]: Abstraction has 6758 states and 18263 transitions. [2021-07-13 18:59:40,787 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:40,787 INFO L276 IsEmpty]: Start isEmpty. Operand 6758 states and 18263 transitions. [2021-07-13 18:59:40,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:59:40,795 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:40,796 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:40,796 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-07-13 18:59:40,796 INFO L430 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:40,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:40,796 INFO L82 PathProgramCache]: Analyzing trace with hash 2098158345, now seen corresponding path program 40 times [2021-07-13 18:59:40,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:40,796 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788529953] [2021-07-13 18:59:40,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:40,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:41,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:41,478 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:41,478 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788529953] [2021-07-13 18:59:41,478 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788529953] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:41,478 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:41,478 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:59:41,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935934191] [2021-07-13 18:59:41,478 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:59:41,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:41,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:59:41,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:59:41,479 INFO L87 Difference]: Start difference. First operand 6758 states and 18263 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:42,141 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 54 [2021-07-13 18:59:42,881 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-13 18:59:44,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:44,780 INFO L93 Difference]: Finished difference Result 7557 states and 20032 transitions. [2021-07-13 18:59:44,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 18:59:44,780 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:59:44,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:44,791 INFO L225 Difference]: With dead ends: 7557 [2021-07-13 18:59:44,791 INFO L226 Difference]: Without dead ends: 7183 [2021-07-13 18:59:44,791 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 2835.8ms TimeCoverageRelationStatistics Valid=606, Invalid=2934, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 18:59:44,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7183 states. [2021-07-13 18:59:44,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7183 to 6718. [2021-07-13 18:59:44,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6718 states, 6717 states have (on average 2.7037367872562155) internal successors, (18161), 6717 states have internal predecessors, (18161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:44,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6718 states to 6718 states and 18161 transitions. [2021-07-13 18:59:44,894 INFO L78 Accepts]: Start accepts. Automaton has 6718 states and 18161 transitions. Word has length 119 [2021-07-13 18:59:44,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:44,895 INFO L482 AbstractCegarLoop]: Abstraction has 6718 states and 18161 transitions. [2021-07-13 18:59:44,895 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:44,895 INFO L276 IsEmpty]: Start isEmpty. Operand 6718 states and 18161 transitions. [2021-07-13 18:59:44,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:59:44,903 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:44,903 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:44,903 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-07-13 18:59:44,904 INFO L430 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:44,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:44,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1974355477, now seen corresponding path program 41 times [2021-07-13 18:59:44,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:44,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204878321] [2021-07-13 18:59:44,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:44,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:45,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:45,579 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:45,579 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204878321] [2021-07-13 18:59:45,579 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204878321] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:45,579 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:45,580 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:59:45,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778901959] [2021-07-13 18:59:45,580 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:59:45,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:45,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:59:45,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:59:45,580 INFO L87 Difference]: Start difference. First operand 6718 states and 18161 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:47,021 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-13 18:59:47,177 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-07-13 18:59:48,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:48,360 INFO L93 Difference]: Finished difference Result 7214 states and 19272 transitions. [2021-07-13 18:59:48,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 18:59:48,360 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:59:48,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:48,371 INFO L225 Difference]: With dead ends: 7214 [2021-07-13 18:59:48,371 INFO L226 Difference]: Without dead ends: 6989 [2021-07-13 18:59:48,372 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 2484.0ms TimeCoverageRelationStatistics Valid=498, Invalid=2472, Unknown=0, NotChecked=0, Total=2970 [2021-07-13 18:59:48,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6989 states. [2021-07-13 18:59:48,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6989 to 6733. [2021-07-13 18:59:48,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6733 states, 6732 states have (on average 2.7026143790849675) internal successors, (18194), 6732 states have internal predecessors, (18194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:48,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6733 states to 6733 states and 18194 transitions. [2021-07-13 18:59:48,472 INFO L78 Accepts]: Start accepts. Automaton has 6733 states and 18194 transitions. Word has length 119 [2021-07-13 18:59:48,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:48,472 INFO L482 AbstractCegarLoop]: Abstraction has 6733 states and 18194 transitions. [2021-07-13 18:59:48,472 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:48,472 INFO L276 IsEmpty]: Start isEmpty. Operand 6733 states and 18194 transitions. [2021-07-13 18:59:48,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:59:48,481 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:48,481 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:48,481 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-07-13 18:59:48,481 INFO L430 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:48,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:48,481 INFO L82 PathProgramCache]: Analyzing trace with hash 5496327, now seen corresponding path program 42 times [2021-07-13 18:59:48,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:48,482 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208439176] [2021-07-13 18:59:48,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:49,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:49,224 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:49,224 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208439176] [2021-07-13 18:59:49,224 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208439176] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:49,224 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:49,224 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:59:49,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457245100] [2021-07-13 18:59:49,224 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:59:49,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:49,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:59:49,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:59:49,225 INFO L87 Difference]: Start difference. First operand 6733 states and 18194 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:50,727 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-13 18:59:52,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:52,131 INFO L93 Difference]: Finished difference Result 7239 states and 19330 transitions. [2021-07-13 18:59:52,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 18:59:52,132 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:59:52,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:52,143 INFO L225 Difference]: With dead ends: 7239 [2021-07-13 18:59:52,143 INFO L226 Difference]: Without dead ends: 6984 [2021-07-13 18:59:52,143 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 2542.2ms TimeCoverageRelationStatistics Valid=482, Invalid=2488, Unknown=0, NotChecked=0, Total=2970 [2021-07-13 18:59:52,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6984 states. [2021-07-13 18:59:52,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6984 to 6728. [2021-07-13 18:59:52,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6728 states, 6727 states have (on average 2.7026906496209304) internal successors, (18181), 6727 states have internal predecessors, (18181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:52,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6728 states to 6728 states and 18181 transitions. [2021-07-13 18:59:52,250 INFO L78 Accepts]: Start accepts. Automaton has 6728 states and 18181 transitions. Word has length 119 [2021-07-13 18:59:52,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:52,250 INFO L482 AbstractCegarLoop]: Abstraction has 6728 states and 18181 transitions. [2021-07-13 18:59:52,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:52,250 INFO L276 IsEmpty]: Start isEmpty. Operand 6728 states and 18181 transitions. [2021-07-13 18:59:52,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:59:52,259 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:52,259 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:52,259 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-07-13 18:59:52,260 INFO L430 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:52,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:52,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1304127475, now seen corresponding path program 43 times [2021-07-13 18:59:52,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:52,260 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236047077] [2021-07-13 18:59:52,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:52,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:52,996 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:52,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236047077] [2021-07-13 18:59:52,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236047077] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:52,996 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:52,996 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:59:52,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567872028] [2021-07-13 18:59:52,997 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:59:52,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:52,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:59:52,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:59:52,997 INFO L87 Difference]: Start difference. First operand 6728 states and 18181 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:55,323 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2021-07-13 18:59:56,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:56,165 INFO L93 Difference]: Finished difference Result 7595 states and 20082 transitions. [2021-07-13 18:59:56,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 18:59:56,165 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:59:56,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:56,175 INFO L225 Difference]: With dead ends: 7595 [2021-07-13 18:59:56,176 INFO L226 Difference]: Without dead ends: 6850 [2021-07-13 18:59:56,176 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 2741.1ms TimeCoverageRelationStatistics Valid=546, Invalid=2760, Unknown=0, NotChecked=0, Total=3306 [2021-07-13 18:59:56,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6850 states. [2021-07-13 18:59:56,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6850 to 6304. [2021-07-13 18:59:56,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6304 states, 6303 states have (on average 2.7087101380295096) internal successors, (17073), 6303 states have internal predecessors, (17073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:56,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6304 states to 6304 states and 17073 transitions. [2021-07-13 18:59:56,270 INFO L78 Accepts]: Start accepts. Automaton has 6304 states and 17073 transitions. Word has length 119 [2021-07-13 18:59:56,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:56,271 INFO L482 AbstractCegarLoop]: Abstraction has 6304 states and 17073 transitions. [2021-07-13 18:59:56,271 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:56,271 INFO L276 IsEmpty]: Start isEmpty. Operand 6304 states and 17073 transitions. [2021-07-13 18:59:56,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:59:56,279 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:56,279 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:56,279 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-07-13 18:59:56,279 INFO L430 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:56,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:56,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1243473729, now seen corresponding path program 44 times [2021-07-13 18:59:56,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:56,279 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715611279] [2021-07-13 18:59:56,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:56,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:56,555 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:56,555 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715611279] [2021-07-13 18:59:56,555 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715611279] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:56,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:56,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 18:59:56,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309543591] [2021-07-13 18:59:56,555 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 18:59:56,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:56,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 18:59:56,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:59:56,556 INFO L87 Difference]: Start difference. First operand 6304 states and 17073 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:57,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:57,122 INFO L93 Difference]: Finished difference Result 9075 states and 24039 transitions. [2021-07-13 18:59:57,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 18:59:57,122 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:59:57,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:57,134 INFO L225 Difference]: With dead ends: 9075 [2021-07-13 18:59:57,135 INFO L226 Difference]: Without dead ends: 8747 [2021-07-13 18:59:57,135 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 465.9ms TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2021-07-13 18:59:57,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8747 states. [2021-07-13 18:59:57,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8747 to 6145. [2021-07-13 18:59:57,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6145 states, 6144 states have (on average 2.7021484375) internal successors, (16602), 6144 states have internal predecessors, (16602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:57,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6145 states to 6145 states and 16602 transitions. [2021-07-13 18:59:57,236 INFO L78 Accepts]: Start accepts. Automaton has 6145 states and 16602 transitions. Word has length 119 [2021-07-13 18:59:57,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:57,236 INFO L482 AbstractCegarLoop]: Abstraction has 6145 states and 16602 transitions. [2021-07-13 18:59:57,236 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:57,236 INFO L276 IsEmpty]: Start isEmpty. Operand 6145 states and 16602 transitions. [2021-07-13 18:59:57,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:59:57,244 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:57,244 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:57,244 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-07-13 18:59:57,244 INFO L430 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:57,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:57,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1513851583, now seen corresponding path program 45 times [2021-07-13 18:59:57,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:57,244 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981342448] [2021-07-13 18:59:57,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:57,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:57,515 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:57,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981342448] [2021-07-13 18:59:57,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981342448] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:57,516 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:57,516 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 18:59:57,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269473488] [2021-07-13 18:59:57,516 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 18:59:57,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:57,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 18:59:57,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-07-13 18:59:57,516 INFO L87 Difference]: Start difference. First operand 6145 states and 16602 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:58,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:59:58,023 INFO L93 Difference]: Finished difference Result 6898 states and 17902 transitions. [2021-07-13 18:59:58,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 18:59:58,023 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 18:59:58,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:59:58,033 INFO L225 Difference]: With dead ends: 6898 [2021-07-13 18:59:58,033 INFO L226 Difference]: Without dead ends: 6732 [2021-07-13 18:59:58,033 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 444.9ms TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2021-07-13 18:59:58,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6732 states. [2021-07-13 18:59:58,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6732 to 5530. [2021-07-13 18:59:58,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5530 states, 5529 states have (on average 2.672092602640622) internal successors, (14774), 5529 states have internal predecessors, (14774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:58,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5530 states to 5530 states and 14774 transitions. [2021-07-13 18:59:58,113 INFO L78 Accepts]: Start accepts. Automaton has 5530 states and 14774 transitions. Word has length 119 [2021-07-13 18:59:58,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:59:58,113 INFO L482 AbstractCegarLoop]: Abstraction has 5530 states and 14774 transitions. [2021-07-13 18:59:58,113 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:58,113 INFO L276 IsEmpty]: Start isEmpty. Operand 5530 states and 14774 transitions. [2021-07-13 18:59:58,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 18:59:58,119 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:59:58,119 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 18:59:58,119 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-07-13 18:59:58,120 INFO L430 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:59:58,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:59:58,120 INFO L82 PathProgramCache]: Analyzing trace with hash 371611779, now seen corresponding path program 46 times [2021-07-13 18:59:58,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:59:58,120 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853077627] [2021-07-13 18:59:58,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:59:58,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:59:58,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:59:58,733 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:59:58,733 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853077627] [2021-07-13 18:59:58,733 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853077627] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:59:58,733 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:59:58,733 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 18:59:58,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550362433] [2021-07-13 18:59:58,734 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 18:59:58,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:59:58,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 18:59:58,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 18:59:58,734 INFO L87 Difference]: Start difference. First operand 5530 states and 14774 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:59:59,733 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-13 19:00:00,085 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-07-13 19:00:00,310 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-07-13 19:00:01,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:01,246 INFO L93 Difference]: Finished difference Result 5750 states and 15189 transitions. [2021-07-13 19:00:01,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:00:01,247 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:00:01,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:01,254 INFO L225 Difference]: With dead ends: 5750 [2021-07-13 19:00:01,254 INFO L226 Difference]: Without dead ends: 5527 [2021-07-13 19:00:01,254 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 2194.0ms TimeCoverageRelationStatistics Valid=442, Invalid=2210, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:00:01,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5527 states. [2021-07-13 19:00:01,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5527 to 5525. [2021-07-13 19:00:01,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5525 states, 5524 states have (on average 2.6714337436640117) internal successors, (14757), 5524 states have internal predecessors, (14757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:01,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5525 states to 5525 states and 14757 transitions. [2021-07-13 19:00:01,328 INFO L78 Accepts]: Start accepts. Automaton has 5525 states and 14757 transitions. Word has length 119 [2021-07-13 19:00:01,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:01,328 INFO L482 AbstractCegarLoop]: Abstraction has 5525 states and 14757 transitions. [2021-07-13 19:00:01,329 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:01,329 INFO L276 IsEmpty]: Start isEmpty. Operand 5525 states and 14757 transitions. [2021-07-13 19:00:01,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:00:01,335 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:01,335 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:01,335 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-07-13 19:00:01,336 INFO L430 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:01,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:01,336 INFO L82 PathProgramCache]: Analyzing trace with hash 367193639, now seen corresponding path program 47 times [2021-07-13 19:00:01,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:01,336 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917071837] [2021-07-13 19:00:01,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:01,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:01,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:01,973 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:01,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917071837] [2021-07-13 19:00:01,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917071837] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:01,973 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:01,973 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:00:01,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444601976] [2021-07-13 19:00:01,974 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:00:01,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:01,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:00:01,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:00:01,974 INFO L87 Difference]: Start difference. First operand 5525 states and 14757 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:03,009 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-13 19:00:03,239 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-07-13 19:00:04,089 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-07-13 19:00:04,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:04,704 INFO L93 Difference]: Finished difference Result 6194 states and 16340 transitions. [2021-07-13 19:00:04,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 19:00:04,704 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:00:04,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:04,712 INFO L225 Difference]: With dead ends: 6194 [2021-07-13 19:00:04,712 INFO L226 Difference]: Without dead ends: 5988 [2021-07-13 19:00:04,712 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 2287.6ms TimeCoverageRelationStatistics Valid=447, Invalid=2309, Unknown=0, NotChecked=0, Total=2756 [2021-07-13 19:00:04,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5988 states. [2021-07-13 19:00:04,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5988 to 5813. [2021-07-13 19:00:04,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5813 states, 5812 states have (on average 2.6663799036476257) internal successors, (15497), 5812 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) [2021-07-13 19:00:04,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5813 states to 5813 states and 15497 transitions. [2021-07-13 19:00:04,794 INFO L78 Accepts]: Start accepts. Automaton has 5813 states and 15497 transitions. Word has length 119 [2021-07-13 19:00:04,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:04,794 INFO L482 AbstractCegarLoop]: Abstraction has 5813 states and 15497 transitions. [2021-07-13 19:00:04,794 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:04,794 INFO L276 IsEmpty]: Start isEmpty. Operand 5813 states and 15497 transitions. [2021-07-13 19:00:04,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:00:04,801 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:04,801 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:04,802 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-07-13 19:00:04,802 INFO L430 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:04,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:04,802 INFO L82 PathProgramCache]: Analyzing trace with hash -107512663, now seen corresponding path program 48 times [2021-07-13 19:00:04,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:04,802 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684815810] [2021-07-13 19:00:04,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:05,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:05,453 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:05,453 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684815810] [2021-07-13 19:00:05,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684815810] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:05,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:05,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:00:05,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981639133] [2021-07-13 19:00:05,454 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:00:05,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:05,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:00:05,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:00:05,454 INFO L87 Difference]: Start difference. First operand 5813 states and 15497 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:06,440 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-13 19:00:06,661 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-07-13 19:00:08,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:08,293 INFO L93 Difference]: Finished difference Result 6649 states and 17366 transitions. [2021-07-13 19:00:08,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-13 19:00:08,293 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:00:08,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:08,300 INFO L225 Difference]: With dead ends: 6649 [2021-07-13 19:00:08,300 INFO L226 Difference]: Without dead ends: 5660 [2021-07-13 19:00:08,301 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 553 ImplicationChecksByTransitivity, 2444.3ms TimeCoverageRelationStatistics Valid=514, Invalid=2678, Unknown=0, NotChecked=0, Total=3192 [2021-07-13 19:00:08,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5660 states. [2021-07-13 19:00:08,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5660 to 5477. [2021-07-13 19:00:08,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5477 states, 5476 states have (on average 2.672936449963477) internal successors, (14637), 5476 states have internal predecessors, (14637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:08,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5477 states to 5477 states and 14637 transitions. [2021-07-13 19:00:08,375 INFO L78 Accepts]: Start accepts. Automaton has 5477 states and 14637 transitions. Word has length 119 [2021-07-13 19:00:08,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:08,375 INFO L482 AbstractCegarLoop]: Abstraction has 5477 states and 14637 transitions. [2021-07-13 19:00:08,375 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:08,375 INFO L276 IsEmpty]: Start isEmpty. Operand 5477 states and 14637 transitions. [2021-07-13 19:00:08,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:00:08,381 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:08,381 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:08,381 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-07-13 19:00:08,382 INFO L430 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:08,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:08,382 INFO L82 PathProgramCache]: Analyzing trace with hash -551577325, now seen corresponding path program 49 times [2021-07-13 19:00:08,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:08,382 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300926683] [2021-07-13 19:00:08,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:09,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:09,019 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:09,019 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300926683] [2021-07-13 19:00:09,019 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300926683] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:09,019 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:09,019 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:00:09,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534336721] [2021-07-13 19:00:09,019 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:00:09,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:09,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:00:09,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:00:09,020 INFO L87 Difference]: Start difference. First operand 5477 states and 14637 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:10,004 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-13 19:00:10,220 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-07-13 19:00:10,514 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-07-13 19:00:11,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:11,521 INFO L93 Difference]: Finished difference Result 5681 states and 15028 transitions. [2021-07-13 19:00:11,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 19:00:11,560 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:00:11,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:11,566 INFO L225 Difference]: With dead ends: 5681 [2021-07-13 19:00:11,566 INFO L226 Difference]: Without dead ends: 5351 [2021-07-13 19:00:11,567 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 2248.7ms TimeCoverageRelationStatistics Valid=459, Invalid=2297, Unknown=0, NotChecked=0, Total=2756 [2021-07-13 19:00:11,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5351 states. [2021-07-13 19:00:11,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5351 to 5351. [2021-07-13 19:00:11,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5351 states, 5350 states have (on average 2.690841121495327) internal successors, (14396), 5350 states have internal predecessors, (14396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:11,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5351 states to 5351 states and 14396 transitions. [2021-07-13 19:00:11,630 INFO L78 Accepts]: Start accepts. Automaton has 5351 states and 14396 transitions. Word has length 119 [2021-07-13 19:00:11,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:11,630 INFO L482 AbstractCegarLoop]: Abstraction has 5351 states and 14396 transitions. [2021-07-13 19:00:11,630 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:11,630 INFO L276 IsEmpty]: Start isEmpty. Operand 5351 states and 14396 transitions. [2021-07-13 19:00:11,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:00:11,636 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:11,636 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:11,636 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-07-13 19:00:11,637 INFO L430 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:11,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:11,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1170997685, now seen corresponding path program 50 times [2021-07-13 19:00:11,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:11,637 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699931175] [2021-07-13 19:00:11,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:12,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:12,309 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:12,309 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699931175] [2021-07-13 19:00:12,310 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699931175] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:12,310 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:12,310 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:00:12,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438363521] [2021-07-13 19:00:12,310 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:00:12,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:12,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:00:12,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:00:12,310 INFO L87 Difference]: Start difference. First operand 5351 states and 14396 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:13,566 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-13 19:00:13,757 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-07-13 19:00:14,006 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-07-13 19:00:14,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:14,726 INFO L93 Difference]: Finished difference Result 5580 states and 14828 transitions. [2021-07-13 19:00:14,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:00:14,726 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:00:14,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:14,734 INFO L225 Difference]: With dead ends: 5580 [2021-07-13 19:00:14,734 INFO L226 Difference]: Without dead ends: 5327 [2021-07-13 19:00:14,735 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 2182.9ms TimeCoverageRelationStatistics Valid=445, Invalid=2207, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:00:14,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5327 states. [2021-07-13 19:00:14,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5327 to 5327. [2021-07-13 19:00:14,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.693954187007135) internal successors, (14348), 5326 states have internal predecessors, (14348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:14,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 14348 transitions. [2021-07-13 19:00:14,802 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 14348 transitions. Word has length 119 [2021-07-13 19:00:14,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:14,802 INFO L482 AbstractCegarLoop]: Abstraction has 5327 states and 14348 transitions. [2021-07-13 19:00:14,802 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:14,802 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 14348 transitions. [2021-07-13 19:00:14,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:00:14,808 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:14,808 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:14,808 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-07-13 19:00:14,808 INFO L430 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:14,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:14,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1017089893, now seen corresponding path program 51 times [2021-07-13 19:00:14,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:14,809 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961515936] [2021-07-13 19:00:14,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:15,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:15,522 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:15,522 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961515936] [2021-07-13 19:00:15,522 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961515936] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:15,522 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:15,522 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:00:15,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506362663] [2021-07-13 19:00:15,522 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:00:15,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:15,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:00:15,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:00:15,523 INFO L87 Difference]: Start difference. First operand 5327 states and 14348 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:16,808 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-13 19:00:16,993 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-07-13 19:00:17,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:17,883 INFO L93 Difference]: Finished difference Result 5650 states and 15048 transitions. [2021-07-13 19:00:17,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:00:17,884 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:00:17,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:17,891 INFO L225 Difference]: With dead ends: 5650 [2021-07-13 19:00:17,891 INFO L226 Difference]: Without dead ends: 5331 [2021-07-13 19:00:17,891 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 2065.4ms TimeCoverageRelationStatistics Valid=445, Invalid=2207, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:00:17,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5331 states. [2021-07-13 19:00:17,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5331 to 5225. [2021-07-13 19:00:17,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5225 states, 5224 states have (on average 2.6923813169984685) internal successors, (14065), 5224 states have internal predecessors, (14065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:17,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5225 states to 5225 states and 14065 transitions. [2021-07-13 19:00:17,967 INFO L78 Accepts]: Start accepts. Automaton has 5225 states and 14065 transitions. Word has length 119 [2021-07-13 19:00:17,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:17,967 INFO L482 AbstractCegarLoop]: Abstraction has 5225 states and 14065 transitions. [2021-07-13 19:00:17,968 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:17,968 INFO L276 IsEmpty]: Start isEmpty. Operand 5225 states and 14065 transitions. [2021-07-13 19:00:17,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:00:17,973 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:17,973 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:17,973 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-07-13 19:00:17,973 INFO L430 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:17,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:17,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1525412117, now seen corresponding path program 52 times [2021-07-13 19:00:17,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:17,974 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770246809] [2021-07-13 19:00:17,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:18,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:18,229 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:18,230 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770246809] [2021-07-13 19:00:18,230 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770246809] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:18,230 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:18,230 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 19:00:18,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294715141] [2021-07-13 19:00:18,230 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 19:00:18,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:18,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 19:00:18,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-07-13 19:00:18,230 INFO L87 Difference]: Start difference. First operand 5225 states and 14065 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:18,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:18,787 INFO L93 Difference]: Finished difference Result 8331 states and 21865 transitions. [2021-07-13 19:00:18,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 19:00:18,787 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:00:18,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:18,798 INFO L225 Difference]: With dead ends: 8331 [2021-07-13 19:00:18,798 INFO L226 Difference]: Without dead ends: 8331 [2021-07-13 19:00:18,798 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 456.1ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-07-13 19:00:18,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8331 states. [2021-07-13 19:00:18,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8331 to 5532. [2021-07-13 19:00:18,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5532 states, 5531 states have (on average 2.6696799855360696) internal successors, (14766), 5531 states have internal predecessors, (14766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:18,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5532 states to 5532 states and 14766 transitions. [2021-07-13 19:00:18,888 INFO L78 Accepts]: Start accepts. Automaton has 5532 states and 14766 transitions. Word has length 119 [2021-07-13 19:00:18,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:18,888 INFO L482 AbstractCegarLoop]: Abstraction has 5532 states and 14766 transitions. [2021-07-13 19:00:18,888 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:18,888 INFO L276 IsEmpty]: Start isEmpty. Operand 5532 states and 14766 transitions. [2021-07-13 19:00:18,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:00:18,895 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:18,895 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:18,895 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-07-13 19:00:18,895 INFO L430 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:18,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:18,895 INFO L82 PathProgramCache]: Analyzing trace with hash -56928143, now seen corresponding path program 53 times [2021-07-13 19:00:18,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:18,896 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086116306] [2021-07-13 19:00:18,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:18,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:19,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:19,426 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:19,426 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086116306] [2021-07-13 19:00:19,426 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086116306] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:19,428 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:19,428 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:00:19,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059097711] [2021-07-13 19:00:19,429 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:00:19,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:19,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:00:19,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:00:19,429 INFO L87 Difference]: Start difference. First operand 5532 states and 14766 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:20,260 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2021-07-13 19:00:20,507 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2021-07-13 19:00:22,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:22,502 INFO L93 Difference]: Finished difference Result 9299 states and 24699 transitions. [2021-07-13 19:00:22,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:00:22,502 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:00:22,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:22,515 INFO L225 Difference]: With dead ends: 9299 [2021-07-13 19:00:22,515 INFO L226 Difference]: Without dead ends: 8983 [2021-07-13 19:00:22,515 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 2454.2ms TimeCoverageRelationStatistics Valid=571, Invalid=2969, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:00:22,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8983 states. [2021-07-13 19:00:22,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8983 to 6756. [2021-07-13 19:00:22,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6756 states, 6755 states have (on average 2.6963730569948186) internal successors, (18214), 6755 states have internal predecessors, (18214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:22,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6756 states to 6756 states and 18214 transitions. [2021-07-13 19:00:22,611 INFO L78 Accepts]: Start accepts. Automaton has 6756 states and 18214 transitions. Word has length 119 [2021-07-13 19:00:22,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:22,611 INFO L482 AbstractCegarLoop]: Abstraction has 6756 states and 18214 transitions. [2021-07-13 19:00:22,611 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:22,611 INFO L276 IsEmpty]: Start isEmpty. Operand 6756 states and 18214 transitions. [2021-07-13 19:00:22,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:00:22,619 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:22,619 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:22,619 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-07-13 19:00:22,619 INFO L430 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:22,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:22,619 INFO L82 PathProgramCache]: Analyzing trace with hash 946919055, now seen corresponding path program 54 times [2021-07-13 19:00:22,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:22,620 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502735907] [2021-07-13 19:00:22,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:23,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:23,259 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:23,259 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502735907] [2021-07-13 19:00:23,260 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502735907] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:23,260 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:23,260 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:00:23,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442682594] [2021-07-13 19:00:23,260 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:00:23,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:23,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:00:23,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:00:23,261 INFO L87 Difference]: Start difference. First operand 6756 states and 18214 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:25,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:25,688 INFO L93 Difference]: Finished difference Result 9632 states and 25615 transitions. [2021-07-13 19:00:25,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:00:25,688 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:00:25,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:25,700 INFO L225 Difference]: With dead ends: 9632 [2021-07-13 19:00:25,701 INFO L226 Difference]: Without dead ends: 8866 [2021-07-13 19:00:25,701 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 2061.9ms TimeCoverageRelationStatistics Valid=614, Invalid=2926, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:00:25,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8866 states. [2021-07-13 19:00:25,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8866 to 6876. [2021-07-13 19:00:25,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6876 states, 6875 states have (on average 2.680727272727273) internal successors, (18430), 6875 states have internal predecessors, (18430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:25,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6876 states to 6876 states and 18430 transitions. [2021-07-13 19:00:25,812 INFO L78 Accepts]: Start accepts. Automaton has 6876 states and 18430 transitions. Word has length 119 [2021-07-13 19:00:25,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:25,813 INFO L482 AbstractCegarLoop]: Abstraction has 6876 states and 18430 transitions. [2021-07-13 19:00:25,813 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:25,813 INFO L276 IsEmpty]: Start isEmpty. Operand 6876 states and 18430 transitions. [2021-07-13 19:00:25,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:00:25,821 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:25,821 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:25,821 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-07-13 19:00:25,822 INFO L430 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:25,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:25,822 INFO L82 PathProgramCache]: Analyzing trace with hash -2139622877, now seen corresponding path program 55 times [2021-07-13 19:00:25,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:25,822 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87680184] [2021-07-13 19:00:25,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:26,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:26,334 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:26,334 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87680184] [2021-07-13 19:00:26,334 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87680184] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:26,334 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:26,335 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:00:26,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973227852] [2021-07-13 19:00:26,336 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:00:26,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:26,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:00:26,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:00:26,337 INFO L87 Difference]: Start difference. First operand 6876 states and 18430 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:28,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:28,820 INFO L93 Difference]: Finished difference Result 9057 states and 23992 transitions. [2021-07-13 19:00:28,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-13 19:00:28,821 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:00:28,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:28,832 INFO L225 Difference]: With dead ends: 9057 [2021-07-13 19:00:28,832 INFO L226 Difference]: Without dead ends: 8218 [2021-07-13 19:00:28,832 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 2095.7ms TimeCoverageRelationStatistics Valid=635, Invalid=3147, Unknown=0, NotChecked=0, Total=3782 [2021-07-13 19:00:28,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8218 states. [2021-07-13 19:00:28,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8218 to 6228. [2021-07-13 19:00:28,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6228 states, 6227 states have (on average 2.6738397302071624) internal successors, (16650), 6227 states have internal predecessors, (16650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:28,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6228 states to 6228 states and 16650 transitions. [2021-07-13 19:00:28,923 INFO L78 Accepts]: Start accepts. Automaton has 6228 states and 16650 transitions. Word has length 119 [2021-07-13 19:00:28,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:28,923 INFO L482 AbstractCegarLoop]: Abstraction has 6228 states and 16650 transitions. [2021-07-13 19:00:28,923 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:28,923 INFO L276 IsEmpty]: Start isEmpty. Operand 6228 states and 16650 transitions. [2021-07-13 19:00:28,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:00:28,930 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:28,930 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:28,930 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-07-13 19:00:28,930 INFO L430 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:28,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:28,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1550242815, now seen corresponding path program 56 times [2021-07-13 19:00:28,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:28,931 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650774829] [2021-07-13 19:00:28,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:29,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:29,656 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:29,656 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650774829] [2021-07-13 19:00:29,656 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650774829] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:29,656 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:29,656 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:00:29,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620030717] [2021-07-13 19:00:29,656 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:00:29,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:29,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:00:29,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:00:29,657 INFO L87 Difference]: Start difference. First operand 6228 states and 16650 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:30,653 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2021-07-13 19:00:30,939 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2021-07-13 19:00:31,367 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-07-13 19:00:32,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:32,930 INFO L93 Difference]: Finished difference Result 7720 states and 20387 transitions. [2021-07-13 19:00:32,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:00:32,931 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:00:32,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:32,942 INFO L225 Difference]: With dead ends: 7720 [2021-07-13 19:00:32,942 INFO L226 Difference]: Without dead ends: 7363 [2021-07-13 19:00:32,943 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 2835.9ms TimeCoverageRelationStatistics Valid=624, Invalid=2916, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:00:32,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7363 states. [2021-07-13 19:00:33,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7363 to 6211. [2021-07-13 19:00:33,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6211 states, 6210 states have (on average 2.6743961352657006) internal successors, (16608), 6210 states have internal predecessors, (16608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:33,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6211 states to 6211 states and 16608 transitions. [2021-07-13 19:00:33,047 INFO L78 Accepts]: Start accepts. Automaton has 6211 states and 16608 transitions. Word has length 119 [2021-07-13 19:00:33,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:33,047 INFO L482 AbstractCegarLoop]: Abstraction has 6211 states and 16608 transitions. [2021-07-13 19:00:33,048 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:33,048 INFO L276 IsEmpty]: Start isEmpty. Operand 6211 states and 16608 transitions. [2021-07-13 19:00:33,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:00:33,056 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:33,056 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:33,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-07-13 19:00:33,056 INFO L430 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:33,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:33,057 INFO L82 PathProgramCache]: Analyzing trace with hash -2040409167, now seen corresponding path program 57 times [2021-07-13 19:00:33,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:33,057 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528273248] [2021-07-13 19:00:33,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:33,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:33,680 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:33,680 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528273248] [2021-07-13 19:00:33,680 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528273248] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:33,681 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:33,681 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:00:33,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779782084] [2021-07-13 19:00:33,681 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:00:33,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:33,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:00:33,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:00:33,681 INFO L87 Difference]: Start difference. First operand 6211 states and 16608 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:35,005 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-07-13 19:00:35,194 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-07-13 19:00:36,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:36,809 INFO L93 Difference]: Finished difference Result 7427 states and 19578 transitions. [2021-07-13 19:00:36,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 19:00:36,809 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:00:36,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:36,820 INFO L225 Difference]: With dead ends: 7427 [2021-07-13 19:00:36,820 INFO L226 Difference]: Without dead ends: 6985 [2021-07-13 19:00:36,821 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2543.8ms TimeCoverageRelationStatistics Valid=597, Invalid=2825, Unknown=0, NotChecked=0, Total=3422 [2021-07-13 19:00:36,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6985 states. [2021-07-13 19:00:36,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6985 to 6170. [2021-07-13 19:00:36,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6169 states have (on average 2.6743394391311397) internal successors, (16498), 6169 states have internal predecessors, (16498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:36,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16498 transitions. [2021-07-13 19:00:36,923 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16498 transitions. Word has length 119 [2021-07-13 19:00:36,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:36,923 INFO L482 AbstractCegarLoop]: Abstraction has 6170 states and 16498 transitions. [2021-07-13 19:00:36,923 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:36,923 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16498 transitions. [2021-07-13 19:00:36,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:00:36,931 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:36,931 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:36,932 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-07-13 19:00:36,932 INFO L430 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:36,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:36,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1821657651, now seen corresponding path program 58 times [2021-07-13 19:00:36,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:36,932 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806743164] [2021-07-13 19:00:36,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:37,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:37,598 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:37,598 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806743164] [2021-07-13 19:00:37,598 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806743164] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:37,598 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:37,598 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:00:37,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203446693] [2021-07-13 19:00:37,599 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:00:37,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:37,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:00:37,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:00:37,599 INFO L87 Difference]: Start difference. First operand 6170 states and 16498 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:38,797 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-07-13 19:00:40,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:40,356 INFO L93 Difference]: Finished difference Result 7822 states and 20732 transitions. [2021-07-13 19:00:40,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 19:00:40,357 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:00:40,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:40,368 INFO L225 Difference]: With dead ends: 7822 [2021-07-13 19:00:40,368 INFO L226 Difference]: Without dead ends: 7602 [2021-07-13 19:00:40,368 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 2348.3ms TimeCoverageRelationStatistics Valid=483, Invalid=2487, Unknown=0, NotChecked=0, Total=2970 [2021-07-13 19:00:40,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7602 states. [2021-07-13 19:00:40,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7602 to 6506. [2021-07-13 19:00:40,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6506 states, 6505 states have (on average 2.664719446579554) internal successors, (17334), 6505 states have internal predecessors, (17334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:40,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6506 states to 6506 states and 17334 transitions. [2021-07-13 19:00:40,478 INFO L78 Accepts]: Start accepts. Automaton has 6506 states and 17334 transitions. Word has length 119 [2021-07-13 19:00:40,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:40,478 INFO L482 AbstractCegarLoop]: Abstraction has 6506 states and 17334 transitions. [2021-07-13 19:00:40,478 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:40,478 INFO L276 IsEmpty]: Start isEmpty. Operand 6506 states and 17334 transitions. [2021-07-13 19:00:40,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:00:40,487 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:40,487 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:40,487 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-07-13 19:00:40,487 INFO L430 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:40,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:40,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1469462447, now seen corresponding path program 59 times [2021-07-13 19:00:40,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:40,488 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217551093] [2021-07-13 19:00:40,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:41,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:41,159 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:41,159 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217551093] [2021-07-13 19:00:41,159 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217551093] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:41,159 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:41,159 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:00:41,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881537267] [2021-07-13 19:00:41,159 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:00:41,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:41,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:00:41,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:00:41,160 INFO L87 Difference]: Start difference. First operand 6506 states and 17334 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:43,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:43,483 INFO L93 Difference]: Finished difference Result 8026 states and 21186 transitions. [2021-07-13 19:00:43,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-13 19:00:43,484 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:00:43,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:43,496 INFO L225 Difference]: With dead ends: 8026 [2021-07-13 19:00:43,496 INFO L226 Difference]: Without dead ends: 7550 [2021-07-13 19:00:43,497 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 2078.3ms TimeCoverageRelationStatistics Valid=514, Invalid=2566, Unknown=0, NotChecked=0, Total=3080 [2021-07-13 19:00:43,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7550 states. [2021-07-13 19:00:43,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7550 to 6578. [2021-07-13 19:00:43,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6578 states, 6577 states have (on average 2.6537935228827734) internal successors, (17454), 6577 states have internal predecessors, (17454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:43,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6578 states to 6578 states and 17454 transitions. [2021-07-13 19:00:43,607 INFO L78 Accepts]: Start accepts. Automaton has 6578 states and 17454 transitions. Word has length 119 [2021-07-13 19:00:43,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:43,607 INFO L482 AbstractCegarLoop]: Abstraction has 6578 states and 17454 transitions. [2021-07-13 19:00:43,607 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:43,607 INFO L276 IsEmpty]: Start isEmpty. Operand 6578 states and 17454 transitions. [2021-07-13 19:00:43,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:00:43,617 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:43,617 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:43,617 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-07-13 19:00:43,617 INFO L430 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:43,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:43,617 INFO L82 PathProgramCache]: Analyzing trace with hash -261037083, now seen corresponding path program 60 times [2021-07-13 19:00:43,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:43,617 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774462662] [2021-07-13 19:00:43,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:43,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:44,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:44,209 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:44,209 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774462662] [2021-07-13 19:00:44,209 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774462662] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:44,209 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:44,209 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:00:44,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758737135] [2021-07-13 19:00:44,209 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:00:44,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:44,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:00:44,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:00:44,210 INFO L87 Difference]: Start difference. First operand 6578 states and 17454 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:46,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:46,418 INFO L93 Difference]: Finished difference Result 7683 states and 20263 transitions. [2021-07-13 19:00:46,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-13 19:00:46,419 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:00:46,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:46,430 INFO L225 Difference]: With dead ends: 7683 [2021-07-13 19:00:46,430 INFO L226 Difference]: Without dead ends: 7142 [2021-07-13 19:00:46,430 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 1930.4ms TimeCoverageRelationStatistics Valid=516, Invalid=2676, Unknown=0, NotChecked=0, Total=3192 [2021-07-13 19:00:46,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7142 states. [2021-07-13 19:00:46,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7142 to 6170. [2021-07-13 19:00:46,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 6169 states have (on average 2.6685038093694278) internal successors, (16462), 6169 states have internal predecessors, (16462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:46,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 16462 transitions. [2021-07-13 19:00:46,527 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 16462 transitions. Word has length 119 [2021-07-13 19:00:46,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:46,527 INFO L482 AbstractCegarLoop]: Abstraction has 6170 states and 16462 transitions. [2021-07-13 19:00:46,528 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:46,528 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 16462 transitions. [2021-07-13 19:00:46,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:00:46,535 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:46,536 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:46,536 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-07-13 19:00:46,536 INFO L430 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:46,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:46,537 INFO L82 PathProgramCache]: Analyzing trace with hash -866138687, now seen corresponding path program 61 times [2021-07-13 19:00:46,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:46,538 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985283429] [2021-07-13 19:00:46,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:47,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:47,208 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:47,208 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985283429] [2021-07-13 19:00:47,208 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985283429] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:47,208 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:47,208 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:00:47,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908866668] [2021-07-13 19:00:47,209 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:00:47,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:47,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:00:47,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:00:47,209 INFO L87 Difference]: Start difference. First operand 6170 states and 16462 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:48,461 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-07-13 19:00:48,950 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-07-13 19:00:50,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:50,053 INFO L93 Difference]: Finished difference Result 7191 states and 19093 transitions. [2021-07-13 19:00:50,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 19:00:50,054 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:00:50,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:50,064 INFO L225 Difference]: With dead ends: 7191 [2021-07-13 19:00:50,065 INFO L226 Difference]: Without dead ends: 6930 [2021-07-13 19:00:50,065 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 2472.9ms TimeCoverageRelationStatistics Valid=499, Invalid=2471, Unknown=0, NotChecked=0, Total=2970 [2021-07-13 19:00:50,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6930 states. [2021-07-13 19:00:50,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6930 to 6134. [2021-07-13 19:00:50,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6134 states, 6133 states have (on average 2.672427849339638) internal successors, (16390), 6133 states have internal predecessors, (16390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:50,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6134 states to 6134 states and 16390 transitions. [2021-07-13 19:00:50,147 INFO L78 Accepts]: Start accepts. Automaton has 6134 states and 16390 transitions. Word has length 119 [2021-07-13 19:00:50,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:50,147 INFO L482 AbstractCegarLoop]: Abstraction has 6134 states and 16390 transitions. [2021-07-13 19:00:50,147 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:50,147 INFO L276 IsEmpty]: Start isEmpty. Operand 6134 states and 16390 transitions. [2021-07-13 19:00:50,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:00:50,153 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:50,153 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:50,154 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-07-13 19:00:50,154 INFO L430 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:50,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:50,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1926571087, now seen corresponding path program 62 times [2021-07-13 19:00:50,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:50,154 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309970643] [2021-07-13 19:00:50,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:50,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:50,774 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:50,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309970643] [2021-07-13 19:00:50,775 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309970643] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:50,775 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:50,775 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:00:50,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626361535] [2021-07-13 19:00:50,775 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:00:50,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:50,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:00:50,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:00:50,775 INFO L87 Difference]: Start difference. First operand 6134 states and 16390 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:53,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:53,316 INFO L93 Difference]: Finished difference Result 8922 states and 23592 transitions. [2021-07-13 19:00:53,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 19:00:53,316 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:00:53,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:53,328 INFO L225 Difference]: With dead ends: 8922 [2021-07-13 19:00:53,328 INFO L226 Difference]: Without dead ends: 8702 [2021-07-13 19:00:53,329 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 2121.0ms TimeCoverageRelationStatistics Valid=473, Invalid=2497, Unknown=0, NotChecked=0, Total=2970 [2021-07-13 19:00:53,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8702 states. [2021-07-13 19:00:53,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8702 to 6434. [2021-07-13 19:00:53,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6434 states, 6433 states have (on average 2.6702937976060936) internal successors, (17178), 6433 states have internal predecessors, (17178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:53,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6434 states to 6434 states and 17178 transitions. [2021-07-13 19:00:53,433 INFO L78 Accepts]: Start accepts. Automaton has 6434 states and 17178 transitions. Word has length 119 [2021-07-13 19:00:53,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:53,434 INFO L482 AbstractCegarLoop]: Abstraction has 6434 states and 17178 transitions. [2021-07-13 19:00:53,434 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:53,434 INFO L276 IsEmpty]: Start isEmpty. Operand 6434 states and 17178 transitions. [2021-07-13 19:00:53,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:00:53,443 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:53,443 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:53,444 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-07-13 19:00:53,444 INFO L430 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:53,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:53,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1364549011, now seen corresponding path program 63 times [2021-07-13 19:00:53,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:53,444 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997023396] [2021-07-13 19:00:53,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:54,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:54,121 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:54,121 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997023396] [2021-07-13 19:00:54,121 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997023396] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:54,121 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:54,121 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:00:54,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701510833] [2021-07-13 19:00:54,121 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:00:54,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:54,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:00:54,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:00:54,122 INFO L87 Difference]: Start difference. First operand 6434 states and 17178 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:54,839 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 52 [2021-07-13 19:00:56,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:56,734 INFO L93 Difference]: Finished difference Result 9126 states and 24046 transitions. [2021-07-13 19:00:56,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-13 19:00:56,734 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:00:56,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:56,747 INFO L225 Difference]: With dead ends: 9126 [2021-07-13 19:00:56,747 INFO L226 Difference]: Without dead ends: 8650 [2021-07-13 19:00:56,747 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 2257.4ms TimeCoverageRelationStatistics Valid=501, Invalid=2579, Unknown=0, NotChecked=0, Total=3080 [2021-07-13 19:00:56,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8650 states. [2021-07-13 19:00:56,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8650 to 6506. [2021-07-13 19:00:56,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6506 states, 6505 states have (on average 2.659185242121445) internal successors, (17298), 6505 states have internal predecessors, (17298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:56,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6506 states to 6506 states and 17298 transitions. [2021-07-13 19:00:56,841 INFO L78 Accepts]: Start accepts. Automaton has 6506 states and 17298 transitions. Word has length 119 [2021-07-13 19:00:56,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:56,841 INFO L482 AbstractCegarLoop]: Abstraction has 6506 states and 17298 transitions. [2021-07-13 19:00:56,842 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:56,842 INFO L276 IsEmpty]: Start isEmpty. Operand 6506 states and 17298 transitions. [2021-07-13 19:00:56,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:00:56,849 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:56,849 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:56,849 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-07-13 19:00:56,849 INFO L430 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:56,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:56,849 INFO L82 PathProgramCache]: Analyzing trace with hash -156123647, now seen corresponding path program 64 times [2021-07-13 19:00:56,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:56,849 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078680429] [2021-07-13 19:00:56,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:00:57,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:00:57,367 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:00:57,367 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078680429] [2021-07-13 19:00:57,367 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078680429] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:00:57,367 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:00:57,367 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:00:57,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042703230] [2021-07-13 19:00:57,367 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:00:57,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:00:57,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:00:57,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:00:57,368 INFO L87 Difference]: Start difference. First operand 6506 states and 17298 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:59,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:00:59,559 INFO L93 Difference]: Finished difference Result 8783 states and 23123 transitions. [2021-07-13 19:00:59,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-13 19:00:59,560 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:00:59,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:00:59,571 INFO L225 Difference]: With dead ends: 8783 [2021-07-13 19:00:59,571 INFO L226 Difference]: Without dead ends: 8242 [2021-07-13 19:00:59,572 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 1867.6ms TimeCoverageRelationStatistics Valid=505, Invalid=2687, Unknown=0, NotChecked=0, Total=3192 [2021-07-13 19:00:59,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8242 states. [2021-07-13 19:00:59,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8242 to 6098. [2021-07-13 19:00:59,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6098 states, 6097 states have (on average 2.650811874692472) internal successors, (16162), 6097 states have internal predecessors, (16162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:59,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6098 states to 6098 states and 16162 transitions. [2021-07-13 19:00:59,675 INFO L78 Accepts]: Start accepts. Automaton has 6098 states and 16162 transitions. Word has length 119 [2021-07-13 19:00:59,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:00:59,675 INFO L482 AbstractCegarLoop]: Abstraction has 6098 states and 16162 transitions. [2021-07-13 19:00:59,675 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:00:59,675 INFO L276 IsEmpty]: Start isEmpty. Operand 6098 states and 16162 transitions. [2021-07-13 19:00:59,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:00:59,681 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:00:59,681 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:00:59,681 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-07-13 19:00:59,682 INFO L430 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:00:59,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:00:59,682 INFO L82 PathProgramCache]: Analyzing trace with hash 500807837, now seen corresponding path program 65 times [2021-07-13 19:00:59,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:00:59,682 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053353682] [2021-07-13 19:00:59,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:00:59,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:00,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:00,167 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:00,167 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053353682] [2021-07-13 19:01:00,167 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053353682] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:00,167 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:00,167 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:01:00,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014097758] [2021-07-13 19:01:00,168 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:01:00,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:00,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:01:00,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:01:00,173 INFO L87 Difference]: Start difference. First operand 6098 states and 16162 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:02,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:02,426 INFO L93 Difference]: Finished difference Result 8619 states and 22515 transitions. [2021-07-13 19:01:02,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 19:01:02,426 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:01:02,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:02,438 INFO L225 Difference]: With dead ends: 8619 [2021-07-13 19:01:02,438 INFO L226 Difference]: Without dead ends: 8189 [2021-07-13 19:01:02,439 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 1816.1ms TimeCoverageRelationStatistics Valid=516, Invalid=2790, Unknown=0, NotChecked=0, Total=3306 [2021-07-13 19:01:02,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8189 states. [2021-07-13 19:01:02,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8189 to 5918. [2021-07-13 19:01:02,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5918 states, 5917 states have (on average 2.670610106472875) internal successors, (15802), 5917 states have internal predecessors, (15802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:02,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5918 states to 5918 states and 15802 transitions. [2021-07-13 19:01:02,526 INFO L78 Accepts]: Start accepts. Automaton has 5918 states and 15802 transitions. Word has length 119 [2021-07-13 19:01:02,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:02,526 INFO L482 AbstractCegarLoop]: Abstraction has 5918 states and 15802 transitions. [2021-07-13 19:01:02,526 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:02,526 INFO L276 IsEmpty]: Start isEmpty. Operand 5918 states and 15802 transitions. [2021-07-13 19:01:02,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:01:02,532 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:02,532 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:02,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-07-13 19:01:02,532 INFO L430 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:02,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:02,532 INFO L82 PathProgramCache]: Analyzing trace with hash -2115126477, now seen corresponding path program 66 times [2021-07-13 19:01:02,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:02,533 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24667347] [2021-07-13 19:01:02,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:03,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:03,035 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:03,035 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24667347] [2021-07-13 19:01:03,035 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24667347] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:03,035 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:03,035 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:01:03,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901193581] [2021-07-13 19:01:03,036 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:01:03,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:03,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:01:03,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:01:03,036 INFO L87 Difference]: Start difference. First operand 5918 states and 15802 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:05,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:05,133 INFO L93 Difference]: Finished difference Result 7054 states and 18703 transitions. [2021-07-13 19:01:05,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 19:01:05,133 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:01:05,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:05,143 INFO L225 Difference]: With dead ends: 7054 [2021-07-13 19:01:05,143 INFO L226 Difference]: Without dead ends: 6829 [2021-07-13 19:01:05,143 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 1726.3ms TimeCoverageRelationStatistics Valid=499, Invalid=2471, Unknown=0, NotChecked=0, Total=2970 [2021-07-13 19:01:05,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6829 states. [2021-07-13 19:01:05,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6829 to 5923. [2021-07-13 19:01:05,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5923 states, 5922 states have (on average 2.669706180344478) internal successors, (15810), 5922 states have internal predecessors, (15810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:05,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5923 states to 5923 states and 15810 transitions. [2021-07-13 19:01:05,217 INFO L78 Accepts]: Start accepts. Automaton has 5923 states and 15810 transitions. Word has length 119 [2021-07-13 19:01:05,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:05,218 INFO L482 AbstractCegarLoop]: Abstraction has 5923 states and 15810 transitions. [2021-07-13 19:01:05,218 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:05,218 INFO L276 IsEmpty]: Start isEmpty. Operand 5923 states and 15810 transitions. [2021-07-13 19:01:05,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:01:05,224 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:05,225 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:05,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-07-13 19:01:05,225 INFO L430 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:05,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:05,225 INFO L82 PathProgramCache]: Analyzing trace with hash 35949327, now seen corresponding path program 67 times [2021-07-13 19:01:05,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:05,225 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710660954] [2021-07-13 19:01:05,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:05,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:05,731 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:05,731 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710660954] [2021-07-13 19:01:05,731 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710660954] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:05,731 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:05,731 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:01:05,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277186187] [2021-07-13 19:01:05,731 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:01:05,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:05,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:01:05,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:01:05,732 INFO L87 Difference]: Start difference. First operand 5923 states and 15810 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:07,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:07,895 INFO L93 Difference]: Finished difference Result 7377 states and 19391 transitions. [2021-07-13 19:01:07,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 19:01:07,895 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:01:07,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:07,905 INFO L225 Difference]: With dead ends: 7377 [2021-07-13 19:01:07,905 INFO L226 Difference]: Without dead ends: 7086 [2021-07-13 19:01:07,906 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 1833.0ms TimeCoverageRelationStatistics Valid=555, Invalid=2751, Unknown=0, NotChecked=0, Total=3306 [2021-07-13 19:01:07,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7086 states. [2021-07-13 19:01:07,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7086 to 5882. [2021-07-13 19:01:07,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5882 states, 5881 states have (on average 2.6747151844924333) internal successors, (15730), 5881 states have internal predecessors, (15730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:07,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5882 states to 5882 states and 15730 transitions. [2021-07-13 19:01:07,985 INFO L78 Accepts]: Start accepts. Automaton has 5882 states and 15730 transitions. Word has length 119 [2021-07-13 19:01:07,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:07,985 INFO L482 AbstractCegarLoop]: Abstraction has 5882 states and 15730 transitions. [2021-07-13 19:01:07,985 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:07,985 INFO L276 IsEmpty]: Start isEmpty. Operand 5882 states and 15730 transitions. [2021-07-13 19:01:07,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:01:07,991 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:07,991 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:07,991 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-07-13 19:01:07,991 INFO L430 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:07,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:07,992 INFO L82 PathProgramCache]: Analyzing trace with hash -2104324993, now seen corresponding path program 68 times [2021-07-13 19:01:07,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:07,992 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014818309] [2021-07-13 19:01:07,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:08,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:08,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:08,499 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:08,499 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014818309] [2021-07-13 19:01:08,499 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014818309] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:08,499 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:08,499 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:01:08,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742789911] [2021-07-13 19:01:08,500 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:01:08,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:08,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:01:08,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:01:08,500 INFO L87 Difference]: Start difference. First operand 5882 states and 15730 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:10,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:10,767 INFO L93 Difference]: Finished difference Result 6947 states and 18266 transitions. [2021-07-13 19:01:10,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 19:01:10,767 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:01:10,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:10,777 INFO L225 Difference]: With dead ends: 6947 [2021-07-13 19:01:10,777 INFO L226 Difference]: Without dead ends: 6613 [2021-07-13 19:01:10,777 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 1896.3ms TimeCoverageRelationStatistics Valid=597, Invalid=2825, Unknown=0, NotChecked=0, Total=3422 [2021-07-13 19:01:10,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6613 states. [2021-07-13 19:01:10,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6613 to 5916. [2021-07-13 19:01:10,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5916 states, 5915 states have (on average 2.673541842772612) internal successors, (15814), 5915 states have internal predecessors, (15814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:10,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5916 states to 5916 states and 15814 transitions. [2021-07-13 19:01:10,854 INFO L78 Accepts]: Start accepts. Automaton has 5916 states and 15814 transitions. Word has length 119 [2021-07-13 19:01:10,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:10,854 INFO L482 AbstractCegarLoop]: Abstraction has 5916 states and 15814 transitions. [2021-07-13 19:01:10,854 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:10,854 INFO L276 IsEmpty]: Start isEmpty. Operand 5916 states and 15814 transitions. [2021-07-13 19:01:10,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:01:10,860 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:10,860 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:10,860 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-07-13 19:01:10,860 INFO L430 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:10,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:10,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1584964223, now seen corresponding path program 69 times [2021-07-13 19:01:10,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:10,861 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814415089] [2021-07-13 19:01:10,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:11,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:11,408 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:11,408 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814415089] [2021-07-13 19:01:11,408 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814415089] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:11,408 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:11,408 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:01:11,408 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868620367] [2021-07-13 19:01:11,408 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:01:11,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:11,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:01:11,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:01:11,409 INFO L87 Difference]: Start difference. First operand 5916 states and 15814 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:13,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:13,439 INFO L93 Difference]: Finished difference Result 6631 states and 17568 transitions. [2021-07-13 19:01:13,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 19:01:13,439 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:01:13,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:13,448 INFO L225 Difference]: With dead ends: 6631 [2021-07-13 19:01:13,448 INFO L226 Difference]: Without dead ends: 6406 [2021-07-13 19:01:13,449 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 1738.9ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-07-13 19:01:13,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6406 states. [2021-07-13 19:01:13,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6406 to 5919. [2021-07-13 19:01:13,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5919 states, 5918 states have (on average 2.6726934775261912) internal successors, (15817), 5918 states have internal predecessors, (15817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:13,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5919 states to 5919 states and 15817 transitions. [2021-07-13 19:01:13,523 INFO L78 Accepts]: Start accepts. Automaton has 5919 states and 15817 transitions. Word has length 119 [2021-07-13 19:01:13,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:13,523 INFO L482 AbstractCegarLoop]: Abstraction has 5919 states and 15817 transitions. [2021-07-13 19:01:13,523 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:13,523 INFO L276 IsEmpty]: Start isEmpty. Operand 5919 states and 15817 transitions. [2021-07-13 19:01:13,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:01:13,529 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:13,529 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:13,529 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-07-13 19:01:13,529 INFO L430 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:13,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:13,529 INFO L82 PathProgramCache]: Analyzing trace with hash 394887581, now seen corresponding path program 70 times [2021-07-13 19:01:13,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:13,530 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654614425] [2021-07-13 19:01:13,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:14,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:14,096 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:14,096 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654614425] [2021-07-13 19:01:14,096 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654614425] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:14,096 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:14,096 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:01:14,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857102910] [2021-07-13 19:01:14,096 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:01:14,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:14,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:01:14,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:01:14,097 INFO L87 Difference]: Start difference. First operand 5919 states and 15817 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:15,391 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-13 19:01:16,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:16,960 INFO L93 Difference]: Finished difference Result 6929 states and 18192 transitions. [2021-07-13 19:01:16,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-13 19:01:16,961 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:01:16,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:16,970 INFO L225 Difference]: With dead ends: 6929 [2021-07-13 19:01:16,970 INFO L226 Difference]: Without dead ends: 6553 [2021-07-13 19:01:16,971 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 2291.6ms TimeCoverageRelationStatistics Valid=532, Invalid=2660, Unknown=0, NotChecked=0, Total=3192 [2021-07-13 19:01:16,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6553 states. [2021-07-13 19:01:17,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6553 to 5789. [2021-07-13 19:01:17,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5789 states, 5788 states have (on average 2.6878023496890115) internal successors, (15557), 5788 states have internal predecessors, (15557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:17,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5789 states to 5789 states and 15557 transitions. [2021-07-13 19:01:17,059 INFO L78 Accepts]: Start accepts. Automaton has 5789 states and 15557 transitions. Word has length 119 [2021-07-13 19:01:17,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:17,059 INFO L482 AbstractCegarLoop]: Abstraction has 5789 states and 15557 transitions. [2021-07-13 19:01:17,059 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:17,059 INFO L276 IsEmpty]: Start isEmpty. Operand 5789 states and 15557 transitions. [2021-07-13 19:01:17,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:01:17,066 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:17,066 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:17,066 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-07-13 19:01:17,066 INFO L430 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:17,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:17,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1175667523, now seen corresponding path program 71 times [2021-07-13 19:01:17,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:17,066 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855376072] [2021-07-13 19:01:17,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:17,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:17,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:17,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855376072] [2021-07-13 19:01:17,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855376072] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:17,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:17,321 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 19:01:17,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983139757] [2021-07-13 19:01:17,321 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 19:01:17,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:17,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 19:01:17,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-07-13 19:01:17,321 INFO L87 Difference]: Start difference. First operand 5789 states and 15557 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:17,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:17,838 INFO L93 Difference]: Finished difference Result 8727 states and 22397 transitions. [2021-07-13 19:01:17,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 19:01:17,838 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:01:17,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:17,851 INFO L225 Difference]: With dead ends: 8727 [2021-07-13 19:01:17,851 INFO L226 Difference]: Without dead ends: 8561 [2021-07-13 19:01:17,851 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 433.1ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-07-13 19:01:17,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8561 states. [2021-07-13 19:01:17,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8561 to 5191. [2021-07-13 19:01:17,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5191 states, 5190 states have (on average 2.652986512524085) internal successors, (13769), 5190 states have internal predecessors, (13769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:17,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 5191 states and 13769 transitions. [2021-07-13 19:01:17,956 INFO L78 Accepts]: Start accepts. Automaton has 5191 states and 13769 transitions. Word has length 119 [2021-07-13 19:01:17,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:17,956 INFO L482 AbstractCegarLoop]: Abstraction has 5191 states and 13769 transitions. [2021-07-13 19:01:17,956 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:17,956 INFO L276 IsEmpty]: Start isEmpty. Operand 5191 states and 13769 transitions. [2021-07-13 19:01:17,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:01:17,962 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:17,962 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:17,963 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-07-13 19:01:17,963 INFO L430 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:17,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:17,963 INFO L82 PathProgramCache]: Analyzing trace with hash 33427719, now seen corresponding path program 72 times [2021-07-13 19:01:17,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:17,963 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657462270] [2021-07-13 19:01:17,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:18,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:18,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:18,717 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:18,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657462270] [2021-07-13 19:01:18,718 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657462270] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:18,718 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:18,718 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:01:18,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057255149] [2021-07-13 19:01:18,718 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:01:18,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:18,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:01:18,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:01:18,718 INFO L87 Difference]: Start difference. First operand 5191 states and 13769 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:20,096 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-13 19:01:20,277 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-07-13 19:01:21,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:21,215 INFO L93 Difference]: Finished difference Result 5725 states and 15064 transitions. [2021-07-13 19:01:21,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:01:21,215 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:01:21,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:21,223 INFO L225 Difference]: With dead ends: 5725 [2021-07-13 19:01:21,223 INFO L226 Difference]: Without dead ends: 5502 [2021-07-13 19:01:21,224 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 2144.3ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:01:21,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5502 states. [2021-07-13 19:01:21,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5502 to 5186. [2021-07-13 19:01:21,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5186 states, 5185 states have (on average 2.6522661523625843) internal successors, (13752), 5185 states have internal predecessors, (13752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:21,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5186 states to 5186 states and 13752 transitions. [2021-07-13 19:01:21,295 INFO L78 Accepts]: Start accepts. Automaton has 5186 states and 13752 transitions. Word has length 119 [2021-07-13 19:01:21,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:21,295 INFO L482 AbstractCegarLoop]: Abstraction has 5186 states and 13752 transitions. [2021-07-13 19:01:21,295 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:21,295 INFO L276 IsEmpty]: Start isEmpty. Operand 5186 states and 13752 transitions. [2021-07-13 19:01:21,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:01:21,301 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:21,301 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:21,301 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-07-13 19:01:21,302 INFO L430 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:21,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:21,302 INFO L82 PathProgramCache]: Analyzing trace with hash 29009579, now seen corresponding path program 73 times [2021-07-13 19:01:21,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:21,302 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616604634] [2021-07-13 19:01:21,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:21,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:22,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:22,005 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:22,006 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616604634] [2021-07-13 19:01:22,006 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616604634] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:22,006 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:22,006 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:01:22,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222474251] [2021-07-13 19:01:22,006 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:01:22,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:22,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:01:22,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:01:22,007 INFO L87 Difference]: Start difference. First operand 5186 states and 13752 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:22,995 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-13 19:01:23,237 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-07-13 19:01:24,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:24,588 INFO L93 Difference]: Finished difference Result 6175 states and 16223 transitions. [2021-07-13 19:01:24,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 19:01:24,589 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:01:24,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:24,597 INFO L225 Difference]: With dead ends: 6175 [2021-07-13 19:01:24,598 INFO L226 Difference]: Without dead ends: 5969 [2021-07-13 19:01:24,598 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 2261.7ms TimeCoverageRelationStatistics Valid=448, Invalid=2308, Unknown=0, NotChecked=0, Total=2756 [2021-07-13 19:01:24,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5969 states. [2021-07-13 19:01:24,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5969 to 5474. [2021-07-13 19:01:24,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5474 states, 5473 states have (on average 2.647907911565869) internal successors, (14492), 5473 states have internal predecessors, (14492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:24,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 14492 transitions. [2021-07-13 19:01:24,679 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 14492 transitions. Word has length 119 [2021-07-13 19:01:24,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:24,679 INFO L482 AbstractCegarLoop]: Abstraction has 5474 states and 14492 transitions. [2021-07-13 19:01:24,679 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:24,679 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 14492 transitions. [2021-07-13 19:01:24,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:01:24,685 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:24,685 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:24,686 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-07-13 19:01:24,686 INFO L430 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:24,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:24,686 INFO L82 PathProgramCache]: Analyzing trace with hash -445696723, now seen corresponding path program 74 times [2021-07-13 19:01:24,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:24,686 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725401074] [2021-07-13 19:01:24,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:24,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:25,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:25,400 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:25,400 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725401074] [2021-07-13 19:01:25,400 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725401074] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:25,400 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:25,400 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:01:25,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280439945] [2021-07-13 19:01:25,400 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:01:25,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:25,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:01:25,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:01:25,401 INFO L87 Difference]: Start difference. First operand 5474 states and 14492 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:26,448 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-13 19:01:26,680 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-07-13 19:01:28,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:28,308 INFO L93 Difference]: Finished difference Result 6630 states and 17249 transitions. [2021-07-13 19:01:28,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-13 19:01:28,308 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:01:28,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:28,316 INFO L225 Difference]: With dead ends: 6630 [2021-07-13 19:01:28,316 INFO L226 Difference]: Without dead ends: 5641 [2021-07-13 19:01:28,317 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 2473.6ms TimeCoverageRelationStatistics Valid=515, Invalid=2677, Unknown=0, NotChecked=0, Total=3192 [2021-07-13 19:01:28,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5641 states. [2021-07-13 19:01:28,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5641 to 5138. [2021-07-13 19:01:28,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5138 states, 5137 states have (on average 2.653688923496204) internal successors, (13632), 5137 states have internal predecessors, (13632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:28,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5138 states to 5138 states and 13632 transitions. [2021-07-13 19:01:28,395 INFO L78 Accepts]: Start accepts. Automaton has 5138 states and 13632 transitions. Word has length 119 [2021-07-13 19:01:28,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:28,395 INFO L482 AbstractCegarLoop]: Abstraction has 5138 states and 13632 transitions. [2021-07-13 19:01:28,395 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:28,395 INFO L276 IsEmpty]: Start isEmpty. Operand 5138 states and 13632 transitions. [2021-07-13 19:01:28,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:01:28,401 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:28,401 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:28,401 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-07-13 19:01:28,401 INFO L430 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:28,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:28,402 INFO L82 PathProgramCache]: Analyzing trace with hash -889761385, now seen corresponding path program 75 times [2021-07-13 19:01:28,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:28,402 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366167433] [2021-07-13 19:01:28,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:29,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:29,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:29,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366167433] [2021-07-13 19:01:29,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366167433] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:29,068 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:29,068 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:01:29,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401155817] [2021-07-13 19:01:29,068 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:01:29,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:29,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:01:29,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:01:29,069 INFO L87 Difference]: Start difference. First operand 5138 states and 13632 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:30,121 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-13 19:01:30,365 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-07-13 19:01:30,671 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-07-13 19:01:31,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:31,725 INFO L93 Difference]: Finished difference Result 5659 states and 14907 transitions. [2021-07-13 19:01:31,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 19:01:31,725 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:01:31,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:31,733 INFO L225 Difference]: With dead ends: 5659 [2021-07-13 19:01:31,733 INFO L226 Difference]: Without dead ends: 5329 [2021-07-13 19:01:31,733 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 2283.2ms TimeCoverageRelationStatistics Valid=460, Invalid=2296, Unknown=0, NotChecked=0, Total=2756 [2021-07-13 19:01:31,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5329 states. [2021-07-13 19:01:31,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5329 to 5012. [2021-07-13 19:01:31,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5012 states, 5011 states have (on average 2.672320894033127) internal successors, (13391), 5011 states have internal predecessors, (13391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:31,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5012 states to 5012 states and 13391 transitions. [2021-07-13 19:01:31,801 INFO L78 Accepts]: Start accepts. Automaton has 5012 states and 13391 transitions. Word has length 119 [2021-07-13 19:01:31,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:31,802 INFO L482 AbstractCegarLoop]: Abstraction has 5012 states and 13391 transitions. [2021-07-13 19:01:31,802 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:31,802 INFO L276 IsEmpty]: Start isEmpty. Operand 5012 states and 13391 transitions. [2021-07-13 19:01:31,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:01:31,807 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:31,807 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:31,808 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-07-13 19:01:31,808 INFO L430 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:31,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:31,808 INFO L82 PathProgramCache]: Analyzing trace with hash 832813625, now seen corresponding path program 76 times [2021-07-13 19:01:31,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:31,808 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867701110] [2021-07-13 19:01:31,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:32,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:32,516 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:32,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867701110] [2021-07-13 19:01:32,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867701110] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:32,516 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:32,516 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:01:32,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842517348] [2021-07-13 19:01:32,516 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:01:32,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:32,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:01:32,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:01:32,517 INFO L87 Difference]: Start difference. First operand 5012 states and 13391 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:33,717 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2021-07-13 19:01:33,851 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-13 19:01:34,043 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-07-13 19:01:34,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:34,985 INFO L93 Difference]: Finished difference Result 5603 states and 14850 transitions. [2021-07-13 19:01:34,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:01:34,985 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:01:34,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:34,993 INFO L225 Difference]: With dead ends: 5603 [2021-07-13 19:01:34,993 INFO L226 Difference]: Without dead ends: 5350 [2021-07-13 19:01:34,993 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 2247.1ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:01:35,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5350 states. [2021-07-13 19:01:35,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5350 to 4976. [2021-07-13 19:01:35,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4976 states, 4975 states have (on average 2.675175879396985) internal successors, (13309), 4975 states have internal predecessors, (13309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:35,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4976 states to 4976 states and 13309 transitions. [2021-07-13 19:01:35,059 INFO L78 Accepts]: Start accepts. Automaton has 4976 states and 13309 transitions. Word has length 119 [2021-07-13 19:01:35,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:35,059 INFO L482 AbstractCegarLoop]: Abstraction has 4976 states and 13309 transitions. [2021-07-13 19:01:35,059 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:35,059 INFO L276 IsEmpty]: Start isEmpty. Operand 4976 states and 13309 transitions. [2021-07-13 19:01:35,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:01:35,065 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:35,065 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:35,065 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-07-13 19:01:35,065 INFO L430 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:35,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:35,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1524191655, now seen corresponding path program 77 times [2021-07-13 19:01:35,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:35,065 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465608229] [2021-07-13 19:01:35,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:35,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:35,315 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:35,315 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465608229] [2021-07-13 19:01:35,315 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465608229] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:35,315 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:35,315 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 19:01:35,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206437658] [2021-07-13 19:01:35,315 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 19:01:35,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:35,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 19:01:35,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-07-13 19:01:35,316 INFO L87 Difference]: Start difference. First operand 4976 states and 13309 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:35,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:35,822 INFO L93 Difference]: Finished difference Result 8487 states and 21897 transitions. [2021-07-13 19:01:35,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 19:01:35,822 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:01:35,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:35,835 INFO L225 Difference]: With dead ends: 8487 [2021-07-13 19:01:35,835 INFO L226 Difference]: Without dead ends: 8487 [2021-07-13 19:01:35,836 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 428.0ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-07-13 19:01:35,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8487 states. [2021-07-13 19:01:35,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8487 to 5227. [2021-07-13 19:01:35,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5227 states, 5226 states have (on average 2.617489475698431) internal successors, (13679), 5226 states have internal predecessors, (13679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:35,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5227 states to 5227 states and 13679 transitions. [2021-07-13 19:01:35,920 INFO L78 Accepts]: Start accepts. Automaton has 5227 states and 13679 transitions. Word has length 119 [2021-07-13 19:01:35,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:35,920 INFO L482 AbstractCegarLoop]: Abstraction has 5227 states and 13679 transitions. [2021-07-13 19:01:35,920 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:35,920 INFO L276 IsEmpty]: Start isEmpty. Operand 5227 states and 13679 transitions. [2021-07-13 19:01:35,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:01:35,925 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:35,925 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:35,926 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-07-13 19:01:35,926 INFO L430 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:35,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:35,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1188435381, now seen corresponding path program 78 times [2021-07-13 19:01:35,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:35,926 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703332789] [2021-07-13 19:01:35,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:36,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:36,608 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:36,608 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703332789] [2021-07-13 19:01:36,608 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703332789] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:36,608 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:36,608 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:01:36,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807718072] [2021-07-13 19:01:36,608 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:01:36,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:36,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:01:36,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:01:36,609 INFO L87 Difference]: Start difference. First operand 5227 states and 13679 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:37,592 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-07-13 19:01:37,836 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-07-13 19:01:39,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:39,361 INFO L93 Difference]: Finished difference Result 7532 states and 19469 transitions. [2021-07-13 19:01:39,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:01:39,362 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:01:39,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:39,372 INFO L225 Difference]: With dead ends: 7532 [2021-07-13 19:01:39,372 INFO L226 Difference]: Without dead ends: 7226 [2021-07-13 19:01:39,373 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 2300.2ms TimeCoverageRelationStatistics Valid=571, Invalid=2969, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:01:39,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7226 states. [2021-07-13 19:01:39,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7226 to 5479. [2021-07-13 19:01:39,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6299744432274554) internal successors, (14407), 5478 states have internal predecessors, (14407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:39,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14407 transitions. [2021-07-13 19:01:39,450 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14407 transitions. Word has length 119 [2021-07-13 19:01:39,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:39,450 INFO L482 AbstractCegarLoop]: Abstraction has 5479 states and 14407 transitions. [2021-07-13 19:01:39,450 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:39,450 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14407 transitions. [2021-07-13 19:01:39,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:01:39,455 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:39,456 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:39,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-07-13 19:01:39,456 INFO L430 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:39,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:39,456 INFO L82 PathProgramCache]: Analyzing trace with hash -2102684717, now seen corresponding path program 79 times [2021-07-13 19:01:39,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:39,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696636877] [2021-07-13 19:01:39,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:40,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:40,079 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:40,079 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696636877] [2021-07-13 19:01:40,079 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696636877] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:40,079 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:40,079 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:01:40,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009135639] [2021-07-13 19:01:40,079 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:01:40,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:40,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:01:40,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:01:40,080 INFO L87 Difference]: Start difference. First operand 5479 states and 14407 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:42,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:42,490 INFO L93 Difference]: Finished difference Result 7899 states and 20487 transitions. [2021-07-13 19:01:42,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:01:42,490 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:01:42,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:42,500 INFO L225 Difference]: With dead ends: 7899 [2021-07-13 19:01:42,501 INFO L226 Difference]: Without dead ends: 7133 [2021-07-13 19:01:42,501 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 2077.1ms TimeCoverageRelationStatistics Valid=614, Invalid=2926, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:01:42,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7133 states. [2021-07-13 19:01:42,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7133 to 5599. [2021-07-13 19:01:42,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5599 states, 5598 states have (on average 2.6121829224723117) internal successors, (14623), 5598 states have internal predecessors, (14623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:42,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5599 states to 5599 states and 14623 transitions. [2021-07-13 19:01:42,628 INFO L78 Accepts]: Start accepts. Automaton has 5599 states and 14623 transitions. Word has length 119 [2021-07-13 19:01:42,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:42,629 INFO L482 AbstractCegarLoop]: Abstraction has 5599 states and 14623 transitions. [2021-07-13 19:01:42,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:42,629 INFO L276 IsEmpty]: Start isEmpty. Operand 5599 states and 14623 transitions. [2021-07-13 19:01:42,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:01:42,634 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:42,634 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:42,634 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-07-13 19:01:42,634 INFO L430 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:42,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:42,634 INFO L82 PathProgramCache]: Analyzing trace with hash -894259353, now seen corresponding path program 80 times [2021-07-13 19:01:42,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:42,634 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302487131] [2021-07-13 19:01:42,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:43,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:43,301 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:43,301 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302487131] [2021-07-13 19:01:43,301 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302487131] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:43,301 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:43,301 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:01:43,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677234596] [2021-07-13 19:01:43,301 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:01:43,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:43,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:01:43,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:01:43,302 INFO L87 Difference]: Start difference. First operand 5599 states and 14623 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:44,297 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2021-07-13 19:01:44,532 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-07-13 19:01:46,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:46,547 INFO L93 Difference]: Finished difference Result 7324 states and 18864 transitions. [2021-07-13 19:01:46,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-13 19:01:46,547 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:01:46,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:46,555 INFO L225 Difference]: With dead ends: 7324 [2021-07-13 19:01:46,555 INFO L226 Difference]: Without dead ends: 6533 [2021-07-13 19:01:46,555 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 2857.2ms TimeCoverageRelationStatistics Valid=635, Invalid=3147, Unknown=0, NotChecked=0, Total=3782 [2021-07-13 19:01:46,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6533 states. [2021-07-13 19:01:46,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6533 to 4999. [2021-07-13 19:01:46,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4999 states, 4998 states have (on average 2.6048419367747098) internal successors, (13019), 4998 states have internal predecessors, (13019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:46,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4999 states to 4999 states and 13019 transitions. [2021-07-13 19:01:46,616 INFO L78 Accepts]: Start accepts. Automaton has 4999 states and 13019 transitions. Word has length 119 [2021-07-13 19:01:46,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:46,616 INFO L482 AbstractCegarLoop]: Abstraction has 4999 states and 13019 transitions. [2021-07-13 19:01:46,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:46,616 INFO L276 IsEmpty]: Start isEmpty. Operand 4999 states and 13019 transitions. [2021-07-13 19:01:46,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:01:46,621 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:46,621 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:46,621 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-07-13 19:01:46,621 INFO L430 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:46,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:46,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1499360957, now seen corresponding path program 81 times [2021-07-13 19:01:46,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:46,622 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089751955] [2021-07-13 19:01:46,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:47,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:47,166 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:47,166 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089751955] [2021-07-13 19:01:47,166 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089751955] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:47,166 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:47,166 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:01:47,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624336252] [2021-07-13 19:01:47,167 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:01:47,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:47,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:01:47,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:01:47,169 INFO L87 Difference]: Start difference. First operand 4999 states and 13019 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:49,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:49,560 INFO L93 Difference]: Finished difference Result 6078 states and 15553 transitions. [2021-07-13 19:01:49,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:01:49,560 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:01:49,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:49,566 INFO L225 Difference]: With dead ends: 6078 [2021-07-13 19:01:49,567 INFO L226 Difference]: Without dead ends: 5731 [2021-07-13 19:01:49,567 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 1997.4ms TimeCoverageRelationStatistics Valid=624, Invalid=2916, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:01:49,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5731 states. [2021-07-13 19:01:49,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5731 to 4977. [2021-07-13 19:01:49,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4977 states, 4976 states have (on average 2.6063102893890675) internal successors, (12969), 4976 states have internal predecessors, (12969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:49,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4977 states to 4977 states and 12969 transitions. [2021-07-13 19:01:49,626 INFO L78 Accepts]: Start accepts. Automaton has 4977 states and 12969 transitions. Word has length 119 [2021-07-13 19:01:49,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:49,626 INFO L482 AbstractCegarLoop]: Abstraction has 4977 states and 12969 transitions. [2021-07-13 19:01:49,626 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:49,626 INFO L276 IsEmpty]: Start isEmpty. Operand 4977 states and 12969 transitions. [2021-07-13 19:01:49,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:01:49,631 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:49,631 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:49,631 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-07-13 19:01:49,631 INFO L430 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:49,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:49,642 INFO L82 PathProgramCache]: Analyzing trace with hash -795045643, now seen corresponding path program 82 times [2021-07-13 19:01:49,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:49,642 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062825483] [2021-07-13 19:01:49,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:50,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:50,180 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:50,180 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062825483] [2021-07-13 19:01:50,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062825483] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:50,180 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:50,180 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:01:50,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365777105] [2021-07-13 19:01:50,180 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:01:50,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:50,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:01:50,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:01:50,181 INFO L87 Difference]: Start difference. First operand 4977 states and 12969 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:52,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:52,473 INFO L93 Difference]: Finished difference Result 5833 states and 14868 transitions. [2021-07-13 19:01:52,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 19:01:52,474 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:01:52,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:52,480 INFO L225 Difference]: With dead ends: 5833 [2021-07-13 19:01:52,480 INFO L226 Difference]: Without dead ends: 5401 [2021-07-13 19:01:52,480 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 1948.3ms TimeCoverageRelationStatistics Valid=597, Invalid=2825, Unknown=0, NotChecked=0, Total=3422 [2021-07-13 19:01:52,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5401 states. [2021-07-13 19:01:52,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5401 to 4910. [2021-07-13 19:01:52,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4910 states, 4909 states have (on average 2.6209003870442045) internal successors, (12866), 4909 states have internal predecessors, (12866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:52,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4910 states to 4910 states and 12866 transitions. [2021-07-13 19:01:52,536 INFO L78 Accepts]: Start accepts. Automaton has 4910 states and 12866 transitions. Word has length 119 [2021-07-13 19:01:52,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:52,536 INFO L482 AbstractCegarLoop]: Abstraction has 4910 states and 12866 transitions. [2021-07-13 19:01:52,536 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:52,536 INFO L276 IsEmpty]: Start isEmpty. Operand 4910 states and 12866 transitions. [2021-07-13 19:01:52,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:01:52,541 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:52,541 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:52,541 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-07-13 19:01:52,541 INFO L430 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:52,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:52,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1008413389, now seen corresponding path program 83 times [2021-07-13 19:01:52,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:52,541 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967748688] [2021-07-13 19:01:52,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:53,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:53,127 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:53,127 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967748688] [2021-07-13 19:01:53,127 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967748688] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:53,128 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:53,128 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:01:53,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430205764] [2021-07-13 19:01:53,128 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:01:53,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:53,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:01:53,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:01:53,128 INFO L87 Difference]: Start difference. First operand 4910 states and 12866 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:54,213 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-13 19:01:54,397 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-07-13 19:01:56,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:56,006 INFO L93 Difference]: Finished difference Result 5690 states and 14572 transitions. [2021-07-13 19:01:56,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 19:01:56,007 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:01:56,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:56,013 INFO L225 Difference]: With dead ends: 5690 [2021-07-13 19:01:56,013 INFO L226 Difference]: Without dead ends: 5377 [2021-07-13 19:01:56,013 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 2332.5ms TimeCoverageRelationStatistics Valid=600, Invalid=2822, Unknown=0, NotChecked=0, Total=3422 [2021-07-13 19:01:56,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5377 states. [2021-07-13 19:01:56,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5377 to 4923. [2021-07-13 19:01:56,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4923 states, 4922 states have (on average 2.616212921576595) internal successors, (12877), 4922 states have internal predecessors, (12877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:56,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4923 states to 4923 states and 12877 transitions. [2021-07-13 19:01:56,075 INFO L78 Accepts]: Start accepts. Automaton has 4923 states and 12877 transitions. Word has length 119 [2021-07-13 19:01:56,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:56,075 INFO L482 AbstractCegarLoop]: Abstraction has 4923 states and 12877 transitions. [2021-07-13 19:01:56,075 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:56,075 INFO L276 IsEmpty]: Start isEmpty. Operand 4923 states and 12877 transitions. [2021-07-13 19:01:56,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:01:56,081 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:56,081 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:56,081 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-07-13 19:01:56,081 INFO L430 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:56,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:56,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1003995249, now seen corresponding path program 84 times [2021-07-13 19:01:56,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:56,081 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499352504] [2021-07-13 19:01:56,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:01:56,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:01:56,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:01:56,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499352504] [2021-07-13 19:01:56,726 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499352504] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:01:56,726 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:01:56,726 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:01:56,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423529427] [2021-07-13 19:01:56,726 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:01:56,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:01:56,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:01:56,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:01:56,726 INFO L87 Difference]: Start difference. First operand 4923 states and 12877 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:57,701 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-07-13 19:01:57,956 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-13 19:01:59,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:01:59,457 INFO L93 Difference]: Finished difference Result 7506 states and 19399 transitions. [2021-07-13 19:01:59,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:01:59,458 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:01:59,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:01:59,467 INFO L225 Difference]: With dead ends: 7506 [2021-07-13 19:01:59,468 INFO L226 Difference]: Without dead ends: 7210 [2021-07-13 19:01:59,468 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 2341.4ms TimeCoverageRelationStatistics Valid=575, Invalid=2965, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:01:59,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7210 states. [2021-07-13 19:01:59,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7210 to 5499. [2021-07-13 19:01:59,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5498 states have (on average 2.630956711531466) internal successors, (14465), 5498 states have internal predecessors, (14465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:59,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 14465 transitions. [2021-07-13 19:01:59,555 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 14465 transitions. Word has length 119 [2021-07-13 19:01:59,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:01:59,555 INFO L482 AbstractCegarLoop]: Abstraction has 5499 states and 14465 transitions. [2021-07-13 19:01:59,555 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:01:59,555 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 14465 transitions. [2021-07-13 19:01:59,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:01:59,562 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:01:59,562 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:01:59,562 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-07-13 19:01:59,562 INFO L430 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:01:59,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:01:59,562 INFO L82 PathProgramCache]: Analyzing trace with hash 529288947, now seen corresponding path program 85 times [2021-07-13 19:01:59,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:01:59,562 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282855540] [2021-07-13 19:01:59,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:01:59,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:00,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:00,099 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:00,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282855540] [2021-07-13 19:02:00,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282855540] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:00,099 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:00,100 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:02:00,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914672495] [2021-07-13 19:02:00,100 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:02:00,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:00,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:02:00,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:02:00,100 INFO L87 Difference]: Start difference. First operand 5499 states and 14465 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:02,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:02,746 INFO L93 Difference]: Finished difference Result 8197 states and 21189 transitions. [2021-07-13 19:02:02,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 19:02:02,746 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:02:02,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:02,756 INFO L225 Difference]: With dead ends: 8197 [2021-07-13 19:02:02,757 INFO L226 Difference]: Without dead ends: 6649 [2021-07-13 19:02:02,757 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 2185.0ms TimeCoverageRelationStatistics Valid=672, Invalid=3360, Unknown=0, NotChecked=0, Total=4032 [2021-07-13 19:02:02,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6649 states. [2021-07-13 19:02:02,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6649 to 4971. [2021-07-13 19:02:02,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4971 states, 4970 states have (on average 2.6054325955734408) internal successors, (12949), 4970 states have internal predecessors, (12949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:02,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4971 states to 4971 states and 12949 transitions. [2021-07-13 19:02:02,843 INFO L78 Accepts]: Start accepts. Automaton has 4971 states and 12949 transitions. Word has length 119 [2021-07-13 19:02:02,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:02,843 INFO L482 AbstractCegarLoop]: Abstraction has 4971 states and 12949 transitions. [2021-07-13 19:02:02,843 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:02,843 INFO L276 IsEmpty]: Start isEmpty. Operand 4971 states and 12949 transitions. [2021-07-13 19:02:02,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:02:02,849 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:02,849 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:02,849 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-07-13 19:02:02,849 INFO L430 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:02,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:02,849 INFO L82 PathProgramCache]: Analyzing trace with hash 85224285, now seen corresponding path program 86 times [2021-07-13 19:02:02,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:02,850 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057696872] [2021-07-13 19:02:02,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:02,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:03,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:03,355 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:03,355 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057696872] [2021-07-13 19:02:03,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057696872] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:03,355 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:03,355 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:02:03,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677987647] [2021-07-13 19:02:03,356 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:02:03,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:03,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:02:03,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:02:03,356 INFO L87 Difference]: Start difference. First operand 4971 states and 12949 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:04,096 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-07-13 19:02:05,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:05,719 INFO L93 Difference]: Finished difference Result 6114 states and 15657 transitions. [2021-07-13 19:02:05,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:02:05,720 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:02:05,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:05,727 INFO L225 Difference]: With dead ends: 6114 [2021-07-13 19:02:05,727 INFO L226 Difference]: Without dead ends: 5694 [2021-07-13 19:02:05,728 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 1940.3ms TimeCoverageRelationStatistics Valid=624, Invalid=2916, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:02:05,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5694 states. [2021-07-13 19:02:05,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5694 to 4851. [2021-07-13 19:02:05,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4851 states, 4850 states have (on average 2.6195876288659794) internal successors, (12705), 4850 states have internal predecessors, (12705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:05,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4851 states to 4851 states and 12705 transitions. [2021-07-13 19:02:05,792 INFO L78 Accepts]: Start accepts. Automaton has 4851 states and 12705 transitions. Word has length 119 [2021-07-13 19:02:05,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:05,792 INFO L482 AbstractCegarLoop]: Abstraction has 4851 states and 12705 transitions. [2021-07-13 19:02:05,792 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:05,792 INFO L276 IsEmpty]: Start isEmpty. Operand 4851 states and 12705 transitions. [2021-07-13 19:02:05,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:02:05,797 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:05,797 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:05,797 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-07-13 19:02:05,797 INFO L430 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:05,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:05,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1329069541, now seen corresponding path program 87 times [2021-07-13 19:02:05,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:05,798 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628423214] [2021-07-13 19:02:05,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:05,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:05,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:05,993 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:05,993 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628423214] [2021-07-13 19:02:05,993 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628423214] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:05,993 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:05,993 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 19:02:05,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229451202] [2021-07-13 19:02:05,994 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 19:02:05,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:05,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 19:02:05,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-07-13 19:02:05,994 INFO L87 Difference]: Start difference. First operand 4851 states and 12705 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:06,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:06,345 INFO L93 Difference]: Finished difference Result 4816 states and 12107 transitions. [2021-07-13 19:02:06,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 19:02:06,345 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:02:06,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:06,352 INFO L225 Difference]: With dead ends: 4816 [2021-07-13 19:02:06,352 INFO L226 Difference]: Without dead ends: 4680 [2021-07-13 19:02:06,353 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 306.5ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-07-13 19:02:06,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4680 states. [2021-07-13 19:02:06,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4680 to 3879. [2021-07-13 19:02:06,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3879 states, 3878 states have (on average 2.564466219700877) internal successors, (9945), 3878 states have internal predecessors, (9945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:06,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3879 states to 3879 states and 9945 transitions. [2021-07-13 19:02:06,398 INFO L78 Accepts]: Start accepts. Automaton has 3879 states and 9945 transitions. Word has length 119 [2021-07-13 19:02:06,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:06,398 INFO L482 AbstractCegarLoop]: Abstraction has 3879 states and 9945 transitions. [2021-07-13 19:02:06,398 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:06,398 INFO L276 IsEmpty]: Start isEmpty. Operand 3879 states and 9945 transitions. [2021-07-13 19:02:06,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:02:06,402 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:06,402 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:06,402 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-07-13 19:02:06,402 INFO L430 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:06,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:06,402 INFO L82 PathProgramCache]: Analyzing trace with hash -496809957, now seen corresponding path program 88 times [2021-07-13 19:02:06,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:06,402 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175416584] [2021-07-13 19:02:06,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:06,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:06,955 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:06,955 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175416584] [2021-07-13 19:02:06,955 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175416584] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:06,955 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:06,955 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:02:06,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976227726] [2021-07-13 19:02:06,956 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:02:06,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:06,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:02:06,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:02:06,956 INFO L87 Difference]: Start difference. First operand 3879 states and 9945 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:08,044 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2021-07-13 19:02:08,214 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-13 19:02:09,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:09,089 INFO L93 Difference]: Finished difference Result 4117 states and 10389 transitions. [2021-07-13 19:02:09,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:02:09,089 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:02:09,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:09,095 INFO L225 Difference]: With dead ends: 4117 [2021-07-13 19:02:09,095 INFO L226 Difference]: Without dead ends: 3897 [2021-07-13 19:02:09,095 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 1803.8ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:02:09,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3897 states. [2021-07-13 19:02:09,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3897 to 3877. [2021-07-13 19:02:09,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3877 states, 3876 states have (on average 2.56140350877193) internal successors, (9928), 3876 states have internal predecessors, (9928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:09,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3877 states to 3877 states and 9928 transitions. [2021-07-13 19:02:09,148 INFO L78 Accepts]: Start accepts. Automaton has 3877 states and 9928 transitions. Word has length 119 [2021-07-13 19:02:09,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:09,148 INFO L482 AbstractCegarLoop]: Abstraction has 3877 states and 9928 transitions. [2021-07-13 19:02:09,148 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:09,148 INFO L276 IsEmpty]: Start isEmpty. Operand 3877 states and 9928 transitions. [2021-07-13 19:02:09,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:02:09,153 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:09,153 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:09,153 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-07-13 19:02:09,153 INFO L430 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:09,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:09,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1625668367, now seen corresponding path program 89 times [2021-07-13 19:02:09,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:09,153 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521193463] [2021-07-13 19:02:09,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:09,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:09,693 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:09,693 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521193463] [2021-07-13 19:02:09,693 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521193463] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:09,694 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:09,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:02:09,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151063224] [2021-07-13 19:02:09,694 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:02:09,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:09,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:02:09,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:02:09,694 INFO L87 Difference]: Start difference. First operand 3877 states and 9928 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:11,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:11,550 INFO L93 Difference]: Finished difference Result 4213 states and 10591 transitions. [2021-07-13 19:02:11,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 19:02:11,551 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:02:11,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:11,556 INFO L225 Difference]: With dead ends: 4213 [2021-07-13 19:02:11,556 INFO L226 Difference]: Without dead ends: 3983 [2021-07-13 19:02:11,556 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 1548.0ms TimeCoverageRelationStatistics Valid=451, Invalid=2305, Unknown=0, NotChecked=0, Total=2756 [2021-07-13 19:02:11,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3983 states. [2021-07-13 19:02:11,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3983 to 3881. [2021-07-13 19:02:11,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3881 states, 3880 states have (on average 2.5603092783505152) internal successors, (9934), 3880 states have internal predecessors, (9934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:11,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3881 states to 3881 states and 9934 transitions. [2021-07-13 19:02:11,599 INFO L78 Accepts]: Start accepts. Automaton has 3881 states and 9934 transitions. Word has length 119 [2021-07-13 19:02:11,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:11,600 INFO L482 AbstractCegarLoop]: Abstraction has 3881 states and 9934 transitions. [2021-07-13 19:02:11,600 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:11,600 INFO L276 IsEmpty]: Start isEmpty. Operand 3881 states and 9934 transitions. [2021-07-13 19:02:11,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:02:11,603 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:11,604 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:11,604 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-07-13 19:02:11,604 INFO L430 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:11,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:11,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1211899971, now seen corresponding path program 90 times [2021-07-13 19:02:11,604 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:11,604 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161029594] [2021-07-13 19:02:11,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:11,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:12,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:12,153 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:12,153 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161029594] [2021-07-13 19:02:12,153 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161029594] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:12,153 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:12,153 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:02:12,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298725695] [2021-07-13 19:02:12,153 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:02:12,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:12,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:02:12,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:02:12,154 INFO L87 Difference]: Start difference. First operand 3881 states and 9934 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:14,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:14,100 INFO L93 Difference]: Finished difference Result 4099 states and 10347 transitions. [2021-07-13 19:02:14,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:02:14,100 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:02:14,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:14,105 INFO L225 Difference]: With dead ends: 4099 [2021-07-13 19:02:14,105 INFO L226 Difference]: Without dead ends: 3875 [2021-07-13 19:02:14,106 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 1683.8ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:02:14,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3875 states. [2021-07-13 19:02:14,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3875 to 3867. [2021-07-13 19:02:14,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3867 states, 3866 states have (on average 2.5613036730470773) internal successors, (9902), 3866 states have internal predecessors, (9902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:14,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3867 states to 3867 states and 9902 transitions. [2021-07-13 19:02:14,149 INFO L78 Accepts]: Start accepts. Automaton has 3867 states and 9902 transitions. Word has length 119 [2021-07-13 19:02:14,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:14,149 INFO L482 AbstractCegarLoop]: Abstraction has 3867 states and 9902 transitions. [2021-07-13 19:02:14,149 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:14,149 INFO L276 IsEmpty]: Start isEmpty. Operand 3867 states and 9902 transitions. [2021-07-13 19:02:14,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:02:14,153 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:14,153 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:14,153 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-07-13 19:02:14,153 INFO L430 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:14,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:14,153 INFO L82 PathProgramCache]: Analyzing trace with hash -830903603, now seen corresponding path program 91 times [2021-07-13 19:02:14,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:14,153 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655439744] [2021-07-13 19:02:14,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:14,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:14,620 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:14,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655439744] [2021-07-13 19:02:14,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655439744] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:14,620 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:14,620 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:02:14,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356164888] [2021-07-13 19:02:14,620 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:02:14,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:14,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:02:14,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:02:14,621 INFO L87 Difference]: Start difference. First operand 3867 states and 9902 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:16,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:16,459 INFO L93 Difference]: Finished difference Result 4890 states and 12349 transitions. [2021-07-13 19:02:16,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 19:02:16,460 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:02:16,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:16,466 INFO L225 Difference]: With dead ends: 4890 [2021-07-13 19:02:16,466 INFO L226 Difference]: Without dead ends: 4684 [2021-07-13 19:02:16,466 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 1472.8ms TimeCoverageRelationStatistics Valid=463, Invalid=2399, Unknown=0, NotChecked=0, Total=2862 [2021-07-13 19:02:16,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4684 states. [2021-07-13 19:02:16,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4684 to 4239. [2021-07-13 19:02:16,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4239 states, 4238 states have (on average 2.556394525719679) internal successors, (10834), 4238 states have internal predecessors, (10834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:16,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4239 states to 4239 states and 10834 transitions. [2021-07-13 19:02:16,516 INFO L78 Accepts]: Start accepts. Automaton has 4239 states and 10834 transitions. Word has length 119 [2021-07-13 19:02:16,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:16,517 INFO L482 AbstractCegarLoop]: Abstraction has 4239 states and 10834 transitions. [2021-07-13 19:02:16,517 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:16,517 INFO L276 IsEmpty]: Start isEmpty. Operand 4239 states and 10834 transitions. [2021-07-13 19:02:16,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:02:16,521 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:16,521 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:16,521 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-07-13 19:02:16,521 INFO L430 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:16,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:16,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1305609905, now seen corresponding path program 92 times [2021-07-13 19:02:16,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:16,521 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414667288] [2021-07-13 19:02:16,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:16,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:16,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:16,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414667288] [2021-07-13 19:02:17,000 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414667288] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:17,000 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:17,000 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:02:17,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251989404] [2021-07-13 19:02:17,000 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:02:17,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:17,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:02:17,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:02:17,000 INFO L87 Difference]: Start difference. First operand 4239 states and 10834 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:19,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:19,140 INFO L93 Difference]: Finished difference Result 5345 states and 13375 transitions. [2021-07-13 19:02:19,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 19:02:19,141 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:02:19,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:19,146 INFO L225 Difference]: With dead ends: 5345 [2021-07-13 19:02:19,146 INFO L226 Difference]: Without dead ends: 4356 [2021-07-13 19:02:19,146 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 1780.6ms TimeCoverageRelationStatistics Valid=524, Invalid=2782, Unknown=0, NotChecked=0, Total=3306 [2021-07-13 19:02:19,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4356 states. [2021-07-13 19:02:19,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4356 to 3903. [2021-07-13 19:02:19,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3903 states, 3902 states have (on average 2.5315222962583293) internal successors, (9878), 3902 states have internal predecessors, (9878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:19,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3903 states to 3903 states and 9878 transitions. [2021-07-13 19:02:19,187 INFO L78 Accepts]: Start accepts. Automaton has 3903 states and 9878 transitions. Word has length 119 [2021-07-13 19:02:19,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:19,188 INFO L482 AbstractCegarLoop]: Abstraction has 3903 states and 9878 transitions. [2021-07-13 19:02:19,188 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:19,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3903 states and 9878 transitions. [2021-07-13 19:02:19,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:02:19,191 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:19,191 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:19,192 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-07-13 19:02:19,192 INFO L430 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:19,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:19,192 INFO L82 PathProgramCache]: Analyzing trace with hash -70632339, now seen corresponding path program 93 times [2021-07-13 19:02:19,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:19,192 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954086532] [2021-07-13 19:02:19,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:19,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:19,683 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:19,683 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954086532] [2021-07-13 19:02:19,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954086532] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:19,684 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:19,684 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:02:19,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797149653] [2021-07-13 19:02:19,684 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:02:19,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:19,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:02:19,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:02:19,684 INFO L87 Difference]: Start difference. First operand 3903 states and 9878 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:21,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:21,629 INFO L93 Difference]: Finished difference Result 4481 states and 11166 transitions. [2021-07-13 19:02:21,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 19:02:21,629 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:02:21,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:21,633 INFO L225 Difference]: With dead ends: 4481 [2021-07-13 19:02:21,633 INFO L226 Difference]: Without dead ends: 4131 [2021-07-13 19:02:21,634 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 1662.5ms TimeCoverageRelationStatistics Valid=460, Invalid=2402, Unknown=0, NotChecked=0, Total=2862 [2021-07-13 19:02:21,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4131 states. [2021-07-13 19:02:21,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4131 to 3783. [2021-07-13 19:02:21,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3783 states, 3782 states have (on average 2.5483870967741935) internal successors, (9638), 3782 states have internal predecessors, (9638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:21,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3783 states to 3783 states and 9638 transitions. [2021-07-13 19:02:21,672 INFO L78 Accepts]: Start accepts. Automaton has 3783 states and 9638 transitions. Word has length 119 [2021-07-13 19:02:21,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:21,673 INFO L482 AbstractCegarLoop]: Abstraction has 3783 states and 9638 transitions. [2021-07-13 19:02:21,673 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:21,673 INFO L276 IsEmpty]: Start isEmpty. Operand 3783 states and 9638 transitions. [2021-07-13 19:02:21,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:02:21,676 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:21,676 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:21,677 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-07-13 19:02:21,677 INFO L430 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:21,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:21,677 INFO L82 PathProgramCache]: Analyzing trace with hash 969626369, now seen corresponding path program 94 times [2021-07-13 19:02:21,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:21,677 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590632254] [2021-07-13 19:02:21,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:22,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:22,152 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:22,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590632254] [2021-07-13 19:02:22,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590632254] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:22,152 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:22,152 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:02:22,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466391036] [2021-07-13 19:02:22,153 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:02:22,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:22,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:02:22,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:02:22,153 INFO L87 Difference]: Start difference. First operand 3783 states and 9638 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:24,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:24,307 INFO L93 Difference]: Finished difference Result 4290 states and 10767 transitions. [2021-07-13 19:02:24,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 19:02:24,307 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:02:24,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:24,342 INFO L225 Difference]: With dead ends: 4290 [2021-07-13 19:02:24,343 INFO L226 Difference]: Without dead ends: 4084 [2021-07-13 19:02:24,343 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 1846.6ms TimeCoverageRelationStatistics Valid=485, Invalid=2485, Unknown=0, NotChecked=0, Total=2970 [2021-07-13 19:02:24,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4084 states. [2021-07-13 19:02:24,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4084 to 3927. [2021-07-13 19:02:24,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3927 states, 3926 states have (on average 2.5455934793683137) internal successors, (9994), 3926 states have internal predecessors, (9994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:24,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3927 states to 3927 states and 9994 transitions. [2021-07-13 19:02:24,384 INFO L78 Accepts]: Start accepts. Automaton has 3927 states and 9994 transitions. Word has length 119 [2021-07-13 19:02:24,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:24,385 INFO L482 AbstractCegarLoop]: Abstraction has 3927 states and 9994 transitions. [2021-07-13 19:02:24,385 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:24,385 INFO L276 IsEmpty]: Start isEmpty. Operand 3927 states and 9994 transitions. [2021-07-13 19:02:24,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:02:24,388 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:24,389 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:24,389 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-07-13 19:02:24,389 INFO L430 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:24,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:24,389 INFO L82 PathProgramCache]: Analyzing trace with hash 494920067, now seen corresponding path program 95 times [2021-07-13 19:02:24,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:24,389 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292036369] [2021-07-13 19:02:24,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:25,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:25,018 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:25,018 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292036369] [2021-07-13 19:02:25,018 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292036369] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:25,018 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:25,018 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:02:25,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153622973] [2021-07-13 19:02:25,019 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:02:25,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:25,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:02:25,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:02:25,019 INFO L87 Difference]: Start difference. First operand 3927 states and 9994 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:26,228 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-13 19:02:27,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:27,751 INFO L93 Difference]: Finished difference Result 4565 states and 11349 transitions. [2021-07-13 19:02:27,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 19:02:27,751 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:02:27,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:27,756 INFO L225 Difference]: With dead ends: 4565 [2021-07-13 19:02:27,757 INFO L226 Difference]: Without dead ends: 3576 [2021-07-13 19:02:27,757 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 2362.3ms TimeCoverageRelationStatistics Valid=549, Invalid=2873, Unknown=0, NotChecked=0, Total=3422 [2021-07-13 19:02:27,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3576 states. [2021-07-13 19:02:27,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3576 to 3375. [2021-07-13 19:02:27,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3375 states, 3374 states have (on average 2.5471250740960283) internal successors, (8594), 3374 states have internal predecessors, (8594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:27,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3375 states to 3375 states and 8594 transitions. [2021-07-13 19:02:27,842 INFO L78 Accepts]: Start accepts. Automaton has 3375 states and 8594 transitions. Word has length 119 [2021-07-13 19:02:27,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:27,842 INFO L482 AbstractCegarLoop]: Abstraction has 3375 states and 8594 transitions. [2021-07-13 19:02:27,842 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:27,842 INFO L276 IsEmpty]: Start isEmpty. Operand 3375 states and 8594 transitions. [2021-07-13 19:02:27,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:02:27,845 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:27,846 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:27,846 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-07-13 19:02:27,846 INFO L430 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:27,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:27,846 INFO L82 PathProgramCache]: Analyzing trace with hash 50855405, now seen corresponding path program 96 times [2021-07-13 19:02:27,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:27,846 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324623802] [2021-07-13 19:02:27,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:27,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:28,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:28,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:28,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324623802] [2021-07-13 19:02:28,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324623802] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:28,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:28,462 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:02:28,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064747221] [2021-07-13 19:02:28,462 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:02:28,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:28,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:02:28,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:02:28,463 INFO L87 Difference]: Start difference. First operand 3375 states and 8594 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:30,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:30,785 INFO L93 Difference]: Finished difference Result 3591 states and 9002 transitions. [2021-07-13 19:02:30,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 19:02:30,786 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:02:30,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:30,790 INFO L225 Difference]: With dead ends: 3591 [2021-07-13 19:02:30,790 INFO L226 Difference]: Without dead ends: 3357 [2021-07-13 19:02:30,791 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 2090.6ms TimeCoverageRelationStatistics Valid=480, Invalid=2382, Unknown=0, NotChecked=0, Total=2862 [2021-07-13 19:02:30,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3357 states. [2021-07-13 19:02:30,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3357 to 3351. [2021-07-13 19:02:30,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3351 states, 3350 states have (on average 2.551044776119403) internal successors, (8546), 3350 states have internal predecessors, (8546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:30,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3351 states to 3351 states and 8546 transitions. [2021-07-13 19:02:30,827 INFO L78 Accepts]: Start accepts. Automaton has 3351 states and 8546 transitions. Word has length 119 [2021-07-13 19:02:30,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:30,827 INFO L482 AbstractCegarLoop]: Abstraction has 3351 states and 8546 transitions. [2021-07-13 19:02:30,827 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:30,827 INFO L276 IsEmpty]: Start isEmpty. Operand 3351 states and 8546 transitions. [2021-07-13 19:02:30,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:02:30,831 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:30,831 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:30,831 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-07-13 19:02:30,831 INFO L430 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:30,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:30,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1512238849, now seen corresponding path program 97 times [2021-07-13 19:02:30,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:30,832 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550115400] [2021-07-13 19:02:30,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:31,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:31,443 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:31,443 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550115400] [2021-07-13 19:02:31,443 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550115400] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:31,443 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:31,443 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:02:31,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071833940] [2021-07-13 19:02:31,444 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:02:31,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:31,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:02:31,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:02:31,444 INFO L87 Difference]: Start difference. First operand 3351 states and 8546 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:33,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:33,934 INFO L93 Difference]: Finished difference Result 3621 states and 9073 transitions. [2021-07-13 19:02:33,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 19:02:33,934 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:02:33,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:33,938 INFO L225 Difference]: With dead ends: 3621 [2021-07-13 19:02:33,939 INFO L226 Difference]: Without dead ends: 3391 [2021-07-13 19:02:33,939 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 2224.6ms TimeCoverageRelationStatistics Valid=467, Invalid=2395, Unknown=0, NotChecked=0, Total=2862 [2021-07-13 19:02:33,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3391 states. [2021-07-13 19:02:33,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3391 to 3336. [2021-07-13 19:02:33,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3335 states have (on average 2.550824587706147) internal successors, (8507), 3335 states have internal predecessors, (8507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:33,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 8507 transitions. [2021-07-13 19:02:33,974 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 8507 transitions. Word has length 119 [2021-07-13 19:02:33,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:33,975 INFO L482 AbstractCegarLoop]: Abstraction has 3336 states and 8507 transitions. [2021-07-13 19:02:33,975 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:33,975 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 8507 transitions. [2021-07-13 19:02:33,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:02:33,978 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:33,978 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:33,980 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-07-13 19:02:33,980 INFO L430 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:33,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:33,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1570320461, now seen corresponding path program 98 times [2021-07-13 19:02:33,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:33,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381431017] [2021-07-13 19:02:33,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:34,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:34,649 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:34,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381431017] [2021-07-13 19:02:34,649 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381431017] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:34,649 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:34,649 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:02:34,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717938067] [2021-07-13 19:02:34,649 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:02:34,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:34,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:02:34,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:02:34,649 INFO L87 Difference]: Start difference. First operand 3336 states and 8507 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:36,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:36,922 INFO L93 Difference]: Finished difference Result 3507 states and 8829 transitions. [2021-07-13 19:02:36,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 19:02:36,922 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:02:36,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:36,926 INFO L225 Difference]: With dead ends: 3507 [2021-07-13 19:02:36,927 INFO L226 Difference]: Without dead ends: 3197 [2021-07-13 19:02:36,927 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 2039.7ms TimeCoverageRelationStatistics Valid=462, Invalid=2294, Unknown=0, NotChecked=0, Total=2756 [2021-07-13 19:02:36,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2021-07-13 19:02:36,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 3197. [2021-07-13 19:02:36,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3197 states, 3196 states have (on average 2.573529411764706) internal successors, (8225), 3196 states have internal predecessors, (8225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:36,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3197 states to 3197 states and 8225 transitions. [2021-07-13 19:02:36,968 INFO L78 Accepts]: Start accepts. Automaton has 3197 states and 8225 transitions. Word has length 119 [2021-07-13 19:02:36,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:36,968 INFO L482 AbstractCegarLoop]: Abstraction has 3197 states and 8225 transitions. [2021-07-13 19:02:36,968 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:36,968 INFO L276 IsEmpty]: Start isEmpty. Operand 3197 states and 8225 transitions. [2021-07-13 19:02:36,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:02:36,972 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:36,972 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:36,972 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-07-13 19:02:36,972 INFO L430 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:36,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:36,972 INFO L82 PathProgramCache]: Analyzing trace with hash 2039112753, now seen corresponding path program 99 times [2021-07-13 19:02:36,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:36,972 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480773685] [2021-07-13 19:02:36,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:36,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:37,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:37,623 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:37,623 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480773685] [2021-07-13 19:02:37,623 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480773685] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:37,623 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:37,623 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:02:37,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774626342] [2021-07-13 19:02:37,624 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:02:37,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:37,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:02:37,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:02:37,624 INFO L87 Difference]: Start difference. First operand 3197 states and 8225 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:38,955 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-07-13 19:02:39,173 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-07-13 19:02:40,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:40,089 INFO L93 Difference]: Finished difference Result 3429 states and 8678 transitions. [2021-07-13 19:02:40,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:02:40,090 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:02:40,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:40,094 INFO L225 Difference]: With dead ends: 3429 [2021-07-13 19:02:40,094 INFO L226 Difference]: Without dead ends: 3147 [2021-07-13 19:02:40,094 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 2168.6ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:02:40,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3147 states. [2021-07-13 19:02:40,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3147 to 3099. [2021-07-13 19:02:40,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3099 states, 3098 states have (on average 2.5961910910264687) internal successors, (8043), 3098 states have internal predecessors, (8043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:40,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3099 states to 3099 states and 8043 transitions. [2021-07-13 19:02:40,128 INFO L78 Accepts]: Start accepts. Automaton has 3099 states and 8043 transitions. Word has length 119 [2021-07-13 19:02:40,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:40,128 INFO L482 AbstractCegarLoop]: Abstraction has 3099 states and 8043 transitions. [2021-07-13 19:02:40,128 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:40,128 INFO L276 IsEmpty]: Start isEmpty. Operand 3099 states and 8043 transitions. [2021-07-13 19:02:40,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:02:40,131 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:40,131 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:40,131 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-07-13 19:02:40,131 INFO L430 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:40,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:40,132 INFO L82 PathProgramCache]: Analyzing trace with hash -144760637, now seen corresponding path program 100 times [2021-07-13 19:02:40,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:40,132 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817783398] [2021-07-13 19:02:40,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:40,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:40,807 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:40,807 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817783398] [2021-07-13 19:02:40,807 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817783398] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:40,807 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:40,808 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:02:40,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702290100] [2021-07-13 19:02:40,808 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:02:40,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:40,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:02:40,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:02:40,808 INFO L87 Difference]: Start difference. First operand 3099 states and 8043 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:42,129 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-07-13 19:02:42,366 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-07-13 19:02:43,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:43,331 INFO L93 Difference]: Finished difference Result 3366 states and 8553 transitions. [2021-07-13 19:02:43,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:02:43,331 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:02:43,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:43,335 INFO L225 Difference]: With dead ends: 3366 [2021-07-13 19:02:43,335 INFO L226 Difference]: Without dead ends: 3164 [2021-07-13 19:02:43,335 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 2253.7ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:02:43,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3164 states. [2021-07-13 19:02:43,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3164 to 3117. [2021-07-13 19:02:43,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3117 states, 3116 states have (on average 2.5924261874197687) internal successors, (8078), 3116 states have internal predecessors, (8078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:43,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 8078 transitions. [2021-07-13 19:02:43,369 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 8078 transitions. Word has length 119 [2021-07-13 19:02:43,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:43,370 INFO L482 AbstractCegarLoop]: Abstraction has 3117 states and 8078 transitions. [2021-07-13 19:02:43,370 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:43,370 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 8078 transitions. [2021-07-13 19:02:43,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:02:43,373 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:43,373 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:43,373 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-07-13 19:02:43,373 INFO L430 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:43,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:43,373 INFO L82 PathProgramCache]: Analyzing trace with hash 374600133, now seen corresponding path program 101 times [2021-07-13 19:02:43,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:43,373 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080875768] [2021-07-13 19:02:43,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:44,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:44,058 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:44,058 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080875768] [2021-07-13 19:02:44,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080875768] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:44,059 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:44,059 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:02:44,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691087404] [2021-07-13 19:02:44,059 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:02:44,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:44,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:02:44,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:02:44,059 INFO L87 Difference]: Start difference. First operand 3117 states and 8078 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:46,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:46,497 INFO L93 Difference]: Finished difference Result 3353 states and 8524 transitions. [2021-07-13 19:02:46,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 19:02:46,498 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:02:46,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:46,501 INFO L225 Difference]: With dead ends: 3353 [2021-07-13 19:02:46,501 INFO L226 Difference]: Without dead ends: 3161 [2021-07-13 19:02:46,502 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 425 ImplicationChecksByTransitivity, 2256.6ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-07-13 19:02:46,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3161 states. [2021-07-13 19:02:46,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3161 to 3121. [2021-07-13 19:02:46,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 2.591025641025641) internal successors, (8084), 3120 states have internal predecessors, (8084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:46,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 8084 transitions. [2021-07-13 19:02:46,535 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 8084 transitions. Word has length 119 [2021-07-13 19:02:46,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:46,535 INFO L482 AbstractCegarLoop]: Abstraction has 3121 states and 8084 transitions. [2021-07-13 19:02:46,535 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:46,535 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 8084 transitions. [2021-07-13 19:02:46,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:02:46,538 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:46,538 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:46,538 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-07-13 19:02:46,539 INFO L430 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:46,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:46,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1940515359, now seen corresponding path program 102 times [2021-07-13 19:02:46,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:46,539 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88789099] [2021-07-13 19:02:46,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:46,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:47,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:47,167 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:47,167 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88789099] [2021-07-13 19:02:47,167 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88789099] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:47,167 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:47,167 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:02:47,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537216617] [2021-07-13 19:02:47,167 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:02:47,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:47,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:02:47,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:02:47,168 INFO L87 Difference]: Start difference. First operand 3121 states and 8084 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:48,435 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-13 19:02:49,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:49,653 INFO L93 Difference]: Finished difference Result 3449 states and 8730 transitions. [2021-07-13 19:02:49,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 19:02:49,654 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:02:49,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:49,658 INFO L225 Difference]: With dead ends: 3449 [2021-07-13 19:02:49,658 INFO L226 Difference]: Without dead ends: 3222 [2021-07-13 19:02:49,658 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 2206.4ms TimeCoverageRelationStatistics Valid=446, Invalid=2310, Unknown=0, NotChecked=0, Total=2756 [2021-07-13 19:02:49,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3222 states. [2021-07-13 19:02:49,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3222 to 3106. [2021-07-13 19:02:49,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3106 states, 3105 states have (on average 2.5948470209339773) internal successors, (8057), 3105 states have internal predecessors, (8057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:49,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3106 states to 3106 states and 8057 transitions. [2021-07-13 19:02:49,691 INFO L78 Accepts]: Start accepts. Automaton has 3106 states and 8057 transitions. Word has length 119 [2021-07-13 19:02:49,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:49,692 INFO L482 AbstractCegarLoop]: Abstraction has 3106 states and 8057 transitions. [2021-07-13 19:02:49,692 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:49,692 INFO L276 IsEmpty]: Start isEmpty. Operand 3106 states and 8057 transitions. [2021-07-13 19:02:49,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:02:49,695 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:49,695 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:49,695 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-07-13 19:02:49,695 INFO L430 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:49,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:49,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1899470451, now seen corresponding path program 103 times [2021-07-13 19:02:49,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:49,695 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576030990] [2021-07-13 19:02:49,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:50,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:50,266 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:50,266 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576030990] [2021-07-13 19:02:50,267 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576030990] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:50,267 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:50,267 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:02:50,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155177942] [2021-07-13 19:02:50,267 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:02:50,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:50,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:02:50,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:02:50,267 INFO L87 Difference]: Start difference. First operand 3106 states and 8057 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:51,500 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-07-13 19:02:52,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:52,290 INFO L93 Difference]: Finished difference Result 3321 states and 8444 transitions. [2021-07-13 19:02:52,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:02:52,291 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:02:52,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:52,295 INFO L225 Difference]: With dead ends: 3321 [2021-07-13 19:02:52,295 INFO L226 Difference]: Without dead ends: 3130 [2021-07-13 19:02:52,295 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 1824.2ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:02:52,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3130 states. [2021-07-13 19:02:52,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3130 to 3102. [2021-07-13 19:02:52,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3102 states, 3101 states have (on average 2.5952918413415027) internal successors, (8048), 3101 states have internal predecessors, (8048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:52,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3102 states to 3102 states and 8048 transitions. [2021-07-13 19:02:52,331 INFO L78 Accepts]: Start accepts. Automaton has 3102 states and 8048 transitions. Word has length 119 [2021-07-13 19:02:52,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:52,331 INFO L482 AbstractCegarLoop]: Abstraction has 3102 states and 8048 transitions. [2021-07-13 19:02:52,331 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:52,331 INFO L276 IsEmpty]: Start isEmpty. Operand 3102 states and 8048 transitions. [2021-07-13 19:02:52,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:02:52,334 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:52,334 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:52,334 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-07-13 19:02:52,334 INFO L430 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:52,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:52,334 INFO L82 PathProgramCache]: Analyzing trace with hash 167118335, now seen corresponding path program 104 times [2021-07-13 19:02:52,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:52,335 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735369241] [2021-07-13 19:02:52,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:52,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:52,999 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:52,999 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735369241] [2021-07-13 19:02:52,999 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735369241] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:52,999 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:52,999 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:02:52,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341078884] [2021-07-13 19:02:52,999 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:02:52,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:53,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:02:53,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:02:53,000 INFO L87 Difference]: Start difference. First operand 3102 states and 8048 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:54,274 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 65 [2021-07-13 19:02:54,497 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-07-13 19:02:55,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:55,458 INFO L93 Difference]: Finished difference Result 3330 states and 8478 transitions. [2021-07-13 19:02:55,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:02:55,458 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:02:55,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:55,463 INFO L225 Difference]: With dead ends: 3330 [2021-07-13 19:02:55,463 INFO L226 Difference]: Without dead ends: 3128 [2021-07-13 19:02:55,463 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 2162.0ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:02:55,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3128 states. [2021-07-13 19:02:55,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3128 to 3093. [2021-07-13 19:02:55,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3093 states, 3092 states have (on average 2.6009055627425615) internal successors, (8042), 3092 states have internal predecessors, (8042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:55,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3093 states to 3093 states and 8042 transitions. [2021-07-13 19:02:55,496 INFO L78 Accepts]: Start accepts. Automaton has 3093 states and 8042 transitions. Word has length 119 [2021-07-13 19:02:55,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:55,496 INFO L482 AbstractCegarLoop]: Abstraction has 3093 states and 8042 transitions. [2021-07-13 19:02:55,496 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:55,497 INFO L276 IsEmpty]: Start isEmpty. Operand 3093 states and 8042 transitions. [2021-07-13 19:02:55,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:02:55,499 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:55,500 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:55,500 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-07-13 19:02:55,500 INFO L430 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:55,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:55,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1293526919, now seen corresponding path program 105 times [2021-07-13 19:02:55,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:55,500 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137765717] [2021-07-13 19:02:55,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:56,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:56,187 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:56,187 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137765717] [2021-07-13 19:02:56,187 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137765717] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:56,187 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:56,187 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:02:56,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77320404] [2021-07-13 19:02:56,187 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:02:56,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:56,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:02:56,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:02:56,187 INFO L87 Difference]: Start difference. First operand 3093 states and 8042 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:57,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:02:57,948 INFO L93 Difference]: Finished difference Result 3293 states and 8403 transitions. [2021-07-13 19:02:57,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:02:57,949 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:02:57,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:02:57,953 INFO L225 Difference]: With dead ends: 3293 [2021-07-13 19:02:57,953 INFO L226 Difference]: Without dead ends: 3104 [2021-07-13 19:02:57,953 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 1670.1ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:02:57,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3104 states. [2021-07-13 19:02:57,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3104 to 3098. [2021-07-13 19:02:57,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3098 states, 3097 states have (on average 2.598320955763642) internal successors, (8047), 3097 states have internal predecessors, (8047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:57,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3098 states to 3098 states and 8047 transitions. [2021-07-13 19:02:57,990 INFO L78 Accepts]: Start accepts. Automaton has 3098 states and 8047 transitions. Word has length 119 [2021-07-13 19:02:57,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:02:57,990 INFO L482 AbstractCegarLoop]: Abstraction has 3098 states and 8047 transitions. [2021-07-13 19:02:57,990 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:02:57,990 INFO L276 IsEmpty]: Start isEmpty. Operand 3098 states and 8047 transitions. [2021-07-13 19:02:57,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:02:57,993 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:02:57,993 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:02:57,993 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-07-13 19:02:57,994 INFO L430 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:02:57,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:02:57,994 INFO L82 PathProgramCache]: Analyzing trace with hash 636827677, now seen corresponding path program 106 times [2021-07-13 19:02:57,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:02:57,994 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110523654] [2021-07-13 19:02:57,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:02:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:02:58,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:02:58,588 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:02:58,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110523654] [2021-07-13 19:02:58,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110523654] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:02:58,588 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:02:58,588 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:02:58,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242359026] [2021-07-13 19:02:58,588 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:02:58,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:02:58,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:02:58,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:02:58,589 INFO L87 Difference]: Start difference. First operand 3098 states and 8047 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:00,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:00,666 INFO L93 Difference]: Finished difference Result 3377 states and 8567 transitions. [2021-07-13 19:03:00,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 19:03:00,667 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:03:00,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:00,671 INFO L225 Difference]: With dead ends: 3377 [2021-07-13 19:03:00,671 INFO L226 Difference]: Without dead ends: 3180 [2021-07-13 19:03:00,671 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 1909.7ms TimeCoverageRelationStatistics Valid=451, Invalid=2305, Unknown=0, NotChecked=0, Total=2756 [2021-07-13 19:03:00,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3180 states. [2021-07-13 19:03:00,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3180 to 3101. [2021-07-13 19:03:00,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3101 states, 3100 states have (on average 2.5970967741935485) internal successors, (8051), 3100 states have internal predecessors, (8051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:00,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3101 states to 3101 states and 8051 transitions. [2021-07-13 19:03:00,707 INFO L78 Accepts]: Start accepts. Automaton has 3101 states and 8051 transitions. Word has length 119 [2021-07-13 19:03:00,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:00,707 INFO L482 AbstractCegarLoop]: Abstraction has 3101 states and 8051 transitions. [2021-07-13 19:03:00,707 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:00,707 INFO L276 IsEmpty]: Start isEmpty. Operand 3101 states and 8051 transitions. [2021-07-13 19:03:00,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:03:00,711 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:00,711 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:00,711 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-07-13 19:03:00,711 INFO L430 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:00,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:00,712 INFO L82 PathProgramCache]: Analyzing trace with hash 223059281, now seen corresponding path program 107 times [2021-07-13 19:03:00,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:00,712 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484970869] [2021-07-13 19:03:00,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:01,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:01,288 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:01,288 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484970869] [2021-07-13 19:03:01,288 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484970869] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:01,288 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:01,288 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:03:01,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694206587] [2021-07-13 19:03:01,288 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:03:01,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:01,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:03:01,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:03:01,289 INFO L87 Difference]: Start difference. First operand 3101 states and 8051 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:02,634 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-07-13 19:03:03,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:03,576 INFO L93 Difference]: Finished difference Result 3281 states and 8374 transitions. [2021-07-13 19:03:03,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:03:03,576 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:03:03,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:03,580 INFO L225 Difference]: With dead ends: 3281 [2021-07-13 19:03:03,580 INFO L226 Difference]: Without dead ends: 3075 [2021-07-13 19:03:03,580 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 2021.3ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:03:03,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3075 states. [2021-07-13 19:03:03,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3075 to 3075. [2021-07-13 19:03:03,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3075 states, 3074 states have (on average 2.6008458035133377) internal successors, (7995), 3074 states have internal predecessors, (7995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:03,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3075 states to 3075 states and 7995 transitions. [2021-07-13 19:03:03,615 INFO L78 Accepts]: Start accepts. Automaton has 3075 states and 7995 transitions. Word has length 119 [2021-07-13 19:03:03,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:03,615 INFO L482 AbstractCegarLoop]: Abstraction has 3075 states and 7995 transitions. [2021-07-13 19:03:03,615 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:03,616 INFO L276 IsEmpty]: Start isEmpty. Operand 3075 states and 7995 transitions. [2021-07-13 19:03:03,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:03:03,619 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:03,619 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:03,619 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-07-13 19:03:03,619 INFO L430 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:03,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:03,619 INFO L82 PathProgramCache]: Analyzing trace with hash -2120060335, now seen corresponding path program 108 times [2021-07-13 19:03:03,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:03,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893028243] [2021-07-13 19:03:03,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:03,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:04,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:04,410 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:04,410 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893028243] [2021-07-13 19:03:04,410 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893028243] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:04,410 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:04,410 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:03:04,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273903719] [2021-07-13 19:03:04,410 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:03:04,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:04,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:03:04,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:03:04,411 INFO L87 Difference]: Start difference. First operand 3075 states and 7995 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:05,650 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-07-13 19:03:05,884 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-07-13 19:03:06,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:06,864 INFO L93 Difference]: Finished difference Result 3450 states and 8778 transitions. [2021-07-13 19:03:06,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:03:06,864 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:03:06,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:06,868 INFO L225 Difference]: With dead ends: 3450 [2021-07-13 19:03:06,868 INFO L226 Difference]: Without dead ends: 3248 [2021-07-13 19:03:06,868 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2229.1ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:03:06,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3248 states. [2021-07-13 19:03:06,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3248 to 3120. [2021-07-13 19:03:06,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3120 states, 3119 states have (on average 2.5960243667842255) internal successors, (8097), 3119 states have internal predecessors, (8097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:06,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 8097 transitions. [2021-07-13 19:03:06,901 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 8097 transitions. Word has length 119 [2021-07-13 19:03:06,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:06,901 INFO L482 AbstractCegarLoop]: Abstraction has 3120 states and 8097 transitions. [2021-07-13 19:03:06,902 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:06,902 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 8097 transitions. [2021-07-13 19:03:06,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:03:06,905 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:06,905 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:06,905 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-07-13 19:03:06,905 INFO L430 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:06,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:06,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1600699565, now seen corresponding path program 109 times [2021-07-13 19:03:06,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:06,905 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408155035] [2021-07-13 19:03:06,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:07,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:07,608 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:07,608 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408155035] [2021-07-13 19:03:07,608 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408155035] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:07,608 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:07,608 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:03:07,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643125359] [2021-07-13 19:03:07,608 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:03:07,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:07,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:03:07,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:03:07,609 INFO L87 Difference]: Start difference. First operand 3120 states and 8097 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:08,974 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-13 19:03:09,129 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-07-13 19:03:10,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:10,280 INFO L93 Difference]: Finished difference Result 3445 states and 8765 transitions. [2021-07-13 19:03:10,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 19:03:10,281 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:03:10,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:10,285 INFO L225 Difference]: With dead ends: 3445 [2021-07-13 19:03:10,285 INFO L226 Difference]: Without dead ends: 3253 [2021-07-13 19:03:10,286 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 2384.7ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-07-13 19:03:10,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3253 states. [2021-07-13 19:03:10,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3253 to 3124. [2021-07-13 19:03:10,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 2.5946205571565804) internal successors, (8103), 3123 states have internal predecessors, (8103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:10,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 8103 transitions. [2021-07-13 19:03:10,348 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 8103 transitions. Word has length 119 [2021-07-13 19:03:10,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:10,348 INFO L482 AbstractCegarLoop]: Abstraction has 3124 states and 8103 transitions. [2021-07-13 19:03:10,348 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:10,348 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 8103 transitions. [2021-07-13 19:03:10,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:03:10,351 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:10,351 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:10,352 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-07-13 19:03:10,352 INFO L430 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:10,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:10,352 INFO L82 PathProgramCache]: Analyzing trace with hash 379152239, now seen corresponding path program 110 times [2021-07-13 19:03:10,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:10,352 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018164829] [2021-07-13 19:03:10,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:11,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:11,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:11,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018164829] [2021-07-13 19:03:11,071 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018164829] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:11,071 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:11,071 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:03:11,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390907730] [2021-07-13 19:03:11,071 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:03:11,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:11,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:03:11,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:03:11,071 INFO L87 Difference]: Start difference. First operand 3124 states and 8103 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:13,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:13,349 INFO L93 Difference]: Finished difference Result 3458 states and 8796 transitions. [2021-07-13 19:03:13,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 19:03:13,349 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:03:13,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:13,354 INFO L225 Difference]: With dead ends: 3458 [2021-07-13 19:03:13,354 INFO L226 Difference]: Without dead ends: 3231 [2021-07-13 19:03:13,354 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 2105.7ms TimeCoverageRelationStatistics Valid=446, Invalid=2310, Unknown=0, NotChecked=0, Total=2756 [2021-07-13 19:03:13,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3231 states. [2021-07-13 19:03:13,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3231 to 3109. [2021-07-13 19:03:13,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3109 states, 3108 states have (on average 2.5952380952380953) internal successors, (8066), 3108 states have internal predecessors, (8066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:13,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 8066 transitions. [2021-07-13 19:03:13,392 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 8066 transitions. Word has length 119 [2021-07-13 19:03:13,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:13,392 INFO L482 AbstractCegarLoop]: Abstraction has 3109 states and 8066 transitions. [2021-07-13 19:03:13,392 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:13,393 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 8066 transitions. [2021-07-13 19:03:13,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:03:13,396 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:13,396 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:13,396 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-07-13 19:03:13,396 INFO L430 AbstractCegarLoop]: === Iteration 164 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:13,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:13,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1257337423, now seen corresponding path program 111 times [2021-07-13 19:03:13,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:13,396 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336026775] [2021-07-13 19:03:13,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:14,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:14,080 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:14,080 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336026775] [2021-07-13 19:03:14,080 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336026775] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:14,080 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:14,080 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:03:14,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42314384] [2021-07-13 19:03:14,080 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:03:14,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:14,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:03:14,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:03:14,081 INFO L87 Difference]: Start difference. First operand 3109 states and 8066 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:15,469 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-13 19:03:15,624 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-07-13 19:03:16,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:16,863 INFO L93 Difference]: Finished difference Result 3468 states and 8821 transitions. [2021-07-13 19:03:16,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 19:03:16,866 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:03:16,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:16,870 INFO L225 Difference]: With dead ends: 3468 [2021-07-13 19:03:16,870 INFO L226 Difference]: Without dead ends: 3276 [2021-07-13 19:03:16,871 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 2451.5ms TimeCoverageRelationStatistics Valid=499, Invalid=2471, Unknown=0, NotChecked=0, Total=2970 [2021-07-13 19:03:16,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3276 states. [2021-07-13 19:03:16,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3276 to 3119. [2021-07-13 19:03:16,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 2.5936497754971137) internal successors, (8087), 3118 states have internal predecessors, (8087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:16,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 8087 transitions. [2021-07-13 19:03:16,906 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 8087 transitions. Word has length 119 [2021-07-13 19:03:16,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:16,906 INFO L482 AbstractCegarLoop]: Abstraction has 3119 states and 8087 transitions. [2021-07-13 19:03:16,906 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:16,906 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 8087 transitions. [2021-07-13 19:03:16,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:03:16,909 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:16,909 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:16,909 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-07-13 19:03:16,909 INFO L430 AbstractCegarLoop]: === Iteration 165 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:16,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:16,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1057778069, now seen corresponding path program 112 times [2021-07-13 19:03:16,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:16,910 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396099235] [2021-07-13 19:03:16,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:17,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:17,627 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:17,627 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396099235] [2021-07-13 19:03:17,627 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396099235] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:17,627 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:17,627 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:03:17,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830192209] [2021-07-13 19:03:17,630 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:03:17,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:17,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:03:17,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:03:17,631 INFO L87 Difference]: Start difference. First operand 3119 states and 8087 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:18,848 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-13 19:03:20,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:20,242 INFO L93 Difference]: Finished difference Result 3489 states and 8868 transitions. [2021-07-13 19:03:20,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 19:03:20,242 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:03:20,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:20,247 INFO L225 Difference]: With dead ends: 3489 [2021-07-13 19:03:20,247 INFO L226 Difference]: Without dead ends: 3272 [2021-07-13 19:03:20,248 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 2396.3ms TimeCoverageRelationStatistics Valid=483, Invalid=2487, Unknown=0, NotChecked=0, Total=2970 [2021-07-13 19:03:20,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3272 states. [2021-07-13 19:03:20,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3272 to 3115. [2021-07-13 19:03:20,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3115 states, 3114 states have (on average 2.5937700706486835) internal successors, (8077), 3114 states have internal predecessors, (8077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:20,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3115 states to 3115 states and 8077 transitions. [2021-07-13 19:03:20,288 INFO L78 Accepts]: Start accepts. Automaton has 3115 states and 8077 transitions. Word has length 119 [2021-07-13 19:03:20,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:20,288 INFO L482 AbstractCegarLoop]: Abstraction has 3115 states and 8077 transitions. [2021-07-13 19:03:20,288 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:20,288 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states and 8077 transitions. [2021-07-13 19:03:20,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:03:20,292 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:20,292 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:20,292 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-07-13 19:03:20,292 INFO L430 AbstractCegarLoop]: === Iteration 166 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:20,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:20,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1927565425, now seen corresponding path program 113 times [2021-07-13 19:03:20,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:20,292 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36388748] [2021-07-13 19:03:20,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:21,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:21,079 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:21,079 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36388748] [2021-07-13 19:03:21,079 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36388748] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:21,079 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:21,079 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:03:21,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859490008] [2021-07-13 19:03:21,080 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:03:21,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:21,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:03:21,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:03:21,080 INFO L87 Difference]: Start difference. First operand 3115 states and 8077 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:24,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:24,039 INFO L93 Difference]: Finished difference Result 3715 states and 9330 transitions. [2021-07-13 19:03:24,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 19:03:24,040 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:03:24,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:24,044 INFO L225 Difference]: With dead ends: 3715 [2021-07-13 19:03:24,044 INFO L226 Difference]: Without dead ends: 3385 [2021-07-13 19:03:24,045 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 2707.8ms TimeCoverageRelationStatistics Valid=547, Invalid=2759, Unknown=0, NotChecked=0, Total=3306 [2021-07-13 19:03:24,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3385 states. [2021-07-13 19:03:24,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3385 to 3040. [2021-07-13 19:03:24,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3040 states, 3039 states have (on average 2.59822309970385) internal successors, (7896), 3039 states have internal predecessors, (7896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:24,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3040 states to 3040 states and 7896 transitions. [2021-07-13 19:03:24,078 INFO L78 Accepts]: Start accepts. Automaton has 3040 states and 7896 transitions. Word has length 119 [2021-07-13 19:03:24,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:24,079 INFO L482 AbstractCegarLoop]: Abstraction has 3040 states and 7896 transitions. [2021-07-13 19:03:24,079 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:24,079 INFO L276 IsEmpty]: Start isEmpty. Operand 3040 states and 7896 transitions. [2021-07-13 19:03:24,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:03:24,081 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:24,081 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:24,082 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-07-13 19:03:24,082 INFO L430 AbstractCegarLoop]: === Iteration 167 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:24,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:24,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1044605369, now seen corresponding path program 114 times [2021-07-13 19:03:24,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:24,082 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151399513] [2021-07-13 19:03:24,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:24,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:24,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:24,722 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:24,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151399513] [2021-07-13 19:03:24,722 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151399513] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:24,723 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:24,723 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:03:24,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327949307] [2021-07-13 19:03:24,723 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:03:24,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:24,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:03:24,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:03:24,727 INFO L87 Difference]: Start difference. First operand 3040 states and 7896 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:26,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:26,641 INFO L93 Difference]: Finished difference Result 3330 states and 8474 transitions. [2021-07-13 19:03:26,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:03:26,642 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:03:26,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:26,646 INFO L225 Difference]: With dead ends: 3330 [2021-07-13 19:03:26,646 INFO L226 Difference]: Without dead ends: 3133 [2021-07-13 19:03:26,646 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 1798.2ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:03:26,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3133 states. [2021-07-13 19:03:26,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3133 to 3030. [2021-07-13 19:03:26,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 2.5988775173324528) internal successors, (7872), 3029 states have internal predecessors, (7872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:26,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 7872 transitions. [2021-07-13 19:03:26,679 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 7872 transitions. Word has length 119 [2021-07-13 19:03:26,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:26,679 INFO L482 AbstractCegarLoop]: Abstraction has 3030 states and 7872 transitions. [2021-07-13 19:03:26,680 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:26,680 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 7872 transitions. [2021-07-13 19:03:26,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:03:26,682 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:26,682 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:26,682 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-07-13 19:03:26,682 INFO L430 AbstractCegarLoop]: === Iteration 168 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:26,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:26,683 INFO L82 PathProgramCache]: Analyzing trace with hash -620934893, now seen corresponding path program 115 times [2021-07-13 19:03:26,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:26,683 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076635078] [2021-07-13 19:03:26,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:27,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:27,340 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:27,340 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076635078] [2021-07-13 19:03:27,340 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076635078] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:27,340 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:27,340 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:03:27,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927549015] [2021-07-13 19:03:27,340 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:03:27,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:27,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:03:27,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:03:27,341 INFO L87 Difference]: Start difference. First operand 3030 states and 7872 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:28,635 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-07-13 19:03:28,859 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-07-13 19:03:29,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:29,789 INFO L93 Difference]: Finished difference Result 3312 states and 8421 transitions. [2021-07-13 19:03:29,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:03:29,790 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:03:29,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:29,794 INFO L225 Difference]: With dead ends: 3312 [2021-07-13 19:03:29,794 INFO L226 Difference]: Without dead ends: 3110 [2021-07-13 19:03:29,794 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2160.8ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:03:29,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3110 states. [2021-07-13 19:03:29,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3110 to 3042. [2021-07-13 19:03:29,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3042 states, 3041 states have (on average 2.594541269319303) internal successors, (7890), 3041 states have internal predecessors, (7890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:29,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3042 states to 3042 states and 7890 transitions. [2021-07-13 19:03:29,834 INFO L78 Accepts]: Start accepts. Automaton has 3042 states and 7890 transitions. Word has length 119 [2021-07-13 19:03:29,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:29,834 INFO L482 AbstractCegarLoop]: Abstraction has 3042 states and 7890 transitions. [2021-07-13 19:03:29,834 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:29,834 INFO L276 IsEmpty]: Start isEmpty. Operand 3042 states and 7890 transitions. [2021-07-13 19:03:29,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:03:29,837 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:29,837 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:29,837 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-07-13 19:03:29,837 INFO L430 AbstractCegarLoop]: === Iteration 169 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:29,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:29,838 INFO L82 PathProgramCache]: Analyzing trace with hash -101574123, now seen corresponding path program 116 times [2021-07-13 19:03:29,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:29,838 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759320593] [2021-07-13 19:03:29,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:30,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:30,460 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:30,461 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759320593] [2021-07-13 19:03:30,461 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759320593] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:30,461 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:30,461 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:03:30,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212251252] [2021-07-13 19:03:30,461 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:03:30,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:30,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:03:30,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:03:30,461 INFO L87 Difference]: Start difference. First operand 3042 states and 7890 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:31,763 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-13 19:03:31,896 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-07-13 19:03:32,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:32,943 INFO L93 Difference]: Finished difference Result 3295 states and 8384 transitions. [2021-07-13 19:03:32,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 19:03:32,944 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:03:32,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:32,948 INFO L225 Difference]: With dead ends: 3295 [2021-07-13 19:03:32,948 INFO L226 Difference]: Without dead ends: 3103 [2021-07-13 19:03:32,948 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 2223.6ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-07-13 19:03:32,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3103 states. [2021-07-13 19:03:32,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3103 to 3044. [2021-07-13 19:03:32,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3044 states, 3043 states have (on average 2.593164640157739) internal successors, (7891), 3043 states have internal predecessors, (7891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:32,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3044 states to 3044 states and 7891 transitions. [2021-07-13 19:03:32,978 INFO L78 Accepts]: Start accepts. Automaton has 3044 states and 7891 transitions. Word has length 119 [2021-07-13 19:03:32,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:32,978 INFO L482 AbstractCegarLoop]: Abstraction has 3044 states and 7891 transitions. [2021-07-13 19:03:32,978 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:32,978 INFO L276 IsEmpty]: Start isEmpty. Operand 3044 states and 7891 transitions. [2021-07-13 19:03:32,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:03:32,981 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:32,981 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:32,981 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-07-13 19:03:32,981 INFO L430 AbstractCegarLoop]: === Iteration 170 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:32,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:32,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1878277681, now seen corresponding path program 117 times [2021-07-13 19:03:32,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:32,981 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026855258] [2021-07-13 19:03:32,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:33,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:33,662 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:33,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026855258] [2021-07-13 19:03:33,663 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026855258] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:33,663 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:33,663 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:03:33,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687617100] [2021-07-13 19:03:33,663 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:03:33,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:33,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:03:33,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:03:33,663 INFO L87 Difference]: Start difference. First operand 3044 states and 7891 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:34,946 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-13 19:03:36,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:36,132 INFO L93 Difference]: Finished difference Result 3363 states and 8526 transitions. [2021-07-13 19:03:36,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 19:03:36,132 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:03:36,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:36,136 INFO L225 Difference]: With dead ends: 3363 [2021-07-13 19:03:36,136 INFO L226 Difference]: Without dead ends: 3136 [2021-07-13 19:03:36,136 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 2280.0ms TimeCoverageRelationStatistics Valid=446, Invalid=2310, Unknown=0, NotChecked=0, Total=2756 [2021-07-13 19:03:36,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3136 states. [2021-07-13 19:03:36,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3136 to 3019. [2021-07-13 19:03:36,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 3018 states have (on average 2.597746852220013) internal successors, (7840), 3018 states have internal predecessors, (7840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:36,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 7840 transitions. [2021-07-13 19:03:36,168 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 7840 transitions. Word has length 119 [2021-07-13 19:03:36,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:36,169 INFO L482 AbstractCegarLoop]: Abstraction has 3019 states and 7840 transitions. [2021-07-13 19:03:36,169 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:36,169 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 7840 transitions. [2021-07-13 19:03:36,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:03:36,171 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:36,171 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:36,172 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-07-13 19:03:36,172 INFO L430 AbstractCegarLoop]: === Iteration 171 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:36,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:36,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1919322589, now seen corresponding path program 118 times [2021-07-13 19:03:36,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:36,172 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836095203] [2021-07-13 19:03:36,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:36,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:36,742 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:36,742 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836095203] [2021-07-13 19:03:36,743 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836095203] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:36,743 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:36,743 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:03:36,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202546806] [2021-07-13 19:03:36,743 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:03:36,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:36,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:03:36,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:03:36,743 INFO L87 Difference]: Start difference. First operand 3019 states and 7840 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:37,810 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-07-13 19:03:38,013 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-07-13 19:03:38,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:38,888 INFO L93 Difference]: Finished difference Result 3257 states and 8288 transitions. [2021-07-13 19:03:38,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:03:38,889 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:03:38,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:38,896 INFO L225 Difference]: With dead ends: 3257 [2021-07-13 19:03:38,896 INFO L226 Difference]: Without dead ends: 3066 [2021-07-13 19:03:38,897 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 1915.2ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:03:38,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3066 states. [2021-07-13 19:03:38,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3066 to 3015. [2021-07-13 19:03:38,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3015 states, 3014 states have (on average 2.5982083609820834) internal successors, (7831), 3014 states have internal predecessors, (7831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:38,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3015 states to 3015 states and 7831 transitions. [2021-07-13 19:03:38,973 INFO L78 Accepts]: Start accepts. Automaton has 3015 states and 7831 transitions. Word has length 119 [2021-07-13 19:03:38,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:38,973 INFO L482 AbstractCegarLoop]: Abstraction has 3015 states and 7831 transitions. [2021-07-13 19:03:38,973 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:38,973 INFO L276 IsEmpty]: Start isEmpty. Operand 3015 states and 7831 transitions. [2021-07-13 19:03:38,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:03:38,976 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:38,976 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:38,976 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-07-13 19:03:38,976 INFO L430 AbstractCegarLoop]: === Iteration 172 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:38,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:38,977 INFO L82 PathProgramCache]: Analyzing trace with hash -309055921, now seen corresponding path program 119 times [2021-07-13 19:03:38,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:38,977 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770809144] [2021-07-13 19:03:38,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:38,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:39,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:39,482 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:39,482 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770809144] [2021-07-13 19:03:39,482 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770809144] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:39,482 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:39,482 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:03:39,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947424012] [2021-07-13 19:03:39,483 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:03:39,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:39,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:03:39,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:03:39,483 INFO L87 Difference]: Start difference. First operand 3015 states and 7831 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:40,630 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-07-13 19:03:41,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:41,595 INFO L93 Difference]: Finished difference Result 3244 states and 8274 transitions. [2021-07-13 19:03:41,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:03:41,595 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:03:41,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:41,599 INFO L225 Difference]: With dead ends: 3244 [2021-07-13 19:03:41,599 INFO L226 Difference]: Without dead ends: 3042 [2021-07-13 19:03:41,599 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 1818.1ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:03:41,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3042 states. [2021-07-13 19:03:41,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3042 to 2946. [2021-07-13 19:03:41,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2945 states have (on average 2.6159592529711375) internal successors, (7704), 2945 states have internal predecessors, (7704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:41,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 7704 transitions. [2021-07-13 19:03:41,633 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 7704 transitions. Word has length 119 [2021-07-13 19:03:41,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:41,633 INFO L482 AbstractCegarLoop]: Abstraction has 2946 states and 7704 transitions. [2021-07-13 19:03:41,633 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:41,633 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 7704 transitions. [2021-07-13 19:03:41,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:03:41,636 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:41,636 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:41,636 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-07-13 19:03:41,636 INFO L430 AbstractCegarLoop]: === Iteration 173 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:41,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:41,636 INFO L82 PathProgramCache]: Analyzing trace with hash 817352663, now seen corresponding path program 120 times [2021-07-13 19:03:41,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:41,636 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526436520] [2021-07-13 19:03:41,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:42,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:42,311 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:42,311 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526436520] [2021-07-13 19:03:42,311 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526436520] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:42,311 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:42,311 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:03:42,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78250350] [2021-07-13 19:03:42,311 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:03:42,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:42,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:03:42,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:03:42,312 INFO L87 Difference]: Start difference. First operand 2946 states and 7704 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:43,497 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-13 19:03:43,698 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-07-13 19:03:44,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:44,626 INFO L93 Difference]: Finished difference Result 3177 states and 8142 transitions. [2021-07-13 19:03:44,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:03:44,627 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:03:44,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:44,630 INFO L225 Difference]: With dead ends: 3177 [2021-07-13 19:03:44,630 INFO L226 Difference]: Without dead ends: 2988 [2021-07-13 19:03:44,631 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 2114.7ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:03:44,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2021-07-13 19:03:44,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 2951. [2021-07-13 19:03:44,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2951 states, 2950 states have (on average 2.613220338983051) internal successors, (7709), 2950 states have internal predecessors, (7709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:44,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2951 states to 2951 states and 7709 transitions. [2021-07-13 19:03:44,664 INFO L78 Accepts]: Start accepts. Automaton has 2951 states and 7709 transitions. Word has length 119 [2021-07-13 19:03:44,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:44,664 INFO L482 AbstractCegarLoop]: Abstraction has 2951 states and 7709 transitions. [2021-07-13 19:03:44,664 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:44,664 INFO L276 IsEmpty]: Start isEmpty. Operand 2951 states and 7709 transitions. [2021-07-13 19:03:44,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:03:44,667 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:44,667 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:44,667 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-07-13 19:03:44,667 INFO L430 AbstractCegarLoop]: === Iteration 174 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:44,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:44,667 INFO L82 PathProgramCache]: Analyzing trace with hash 160653421, now seen corresponding path program 121 times [2021-07-13 19:03:44,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:44,667 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175998678] [2021-07-13 19:03:44,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:44,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:45,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:45,324 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:45,324 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175998678] [2021-07-13 19:03:45,324 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175998678] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:45,324 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:45,324 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:03:45,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381959656] [2021-07-13 19:03:45,324 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:03:45,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:45,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:03:45,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:03:45,325 INFO L87 Difference]: Start difference. First operand 2951 states and 7709 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:47,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:47,699 INFO L93 Difference]: Finished difference Result 3261 states and 8306 transitions. [2021-07-13 19:03:47,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 19:03:47,700 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:03:47,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:47,704 INFO L225 Difference]: With dead ends: 3261 [2021-07-13 19:03:47,704 INFO L226 Difference]: Without dead ends: 3064 [2021-07-13 19:03:47,704 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 2174.2ms TimeCoverageRelationStatistics Valid=451, Invalid=2305, Unknown=0, NotChecked=0, Total=2756 [2021-07-13 19:03:47,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3064 states. [2021-07-13 19:03:47,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3064 to 2954. [2021-07-13 19:03:47,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2954 states, 2953 states have (on average 2.6119200812732815) internal successors, (7713), 2953 states have internal predecessors, (7713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:47,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2954 states to 2954 states and 7713 transitions. [2021-07-13 19:03:47,741 INFO L78 Accepts]: Start accepts. Automaton has 2954 states and 7713 transitions. Word has length 119 [2021-07-13 19:03:47,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:47,741 INFO L482 AbstractCegarLoop]: Abstraction has 2954 states and 7713 transitions. [2021-07-13 19:03:47,741 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:47,741 INFO L276 IsEmpty]: Start isEmpty. Operand 2954 states and 7713 transitions. [2021-07-13 19:03:47,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:03:47,744 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:47,744 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:47,744 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-07-13 19:03:47,744 INFO L430 AbstractCegarLoop]: === Iteration 175 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:47,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:47,745 INFO L82 PathProgramCache]: Analyzing trace with hash -253114975, now seen corresponding path program 122 times [2021-07-13 19:03:47,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:47,745 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729642122] [2021-07-13 19:03:47,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:48,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:48,393 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:48,393 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729642122] [2021-07-13 19:03:48,393 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729642122] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:48,393 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:48,393 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:03:48,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830912933] [2021-07-13 19:03:48,393 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:03:48,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:48,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:03:48,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:03:48,394 INFO L87 Difference]: Start difference. First operand 2954 states and 7713 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:49,723 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2021-07-13 19:03:49,863 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-07-13 19:03:50,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:50,846 INFO L93 Difference]: Finished difference Result 3165 states and 8113 transitions. [2021-07-13 19:03:50,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:03:50,846 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:03:50,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:50,850 INFO L225 Difference]: With dead ends: 3165 [2021-07-13 19:03:50,850 INFO L226 Difference]: Without dead ends: 2923 [2021-07-13 19:03:50,850 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2225.6ms TimeCoverageRelationStatistics Valid=444, Invalid=2208, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:03:50,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2021-07-13 19:03:50,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 2892. [2021-07-13 19:03:50,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2892 states, 2891 states have (on average 2.6205465236942236) internal successors, (7576), 2891 states have internal predecessors, (7576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:50,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2892 states to 2892 states and 7576 transitions. [2021-07-13 19:03:50,887 INFO L78 Accepts]: Start accepts. Automaton has 2892 states and 7576 transitions. Word has length 119 [2021-07-13 19:03:50,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:50,887 INFO L482 AbstractCegarLoop]: Abstraction has 2892 states and 7576 transitions. [2021-07-13 19:03:50,887 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:50,887 INFO L276 IsEmpty]: Start isEmpty. Operand 2892 states and 7576 transitions. [2021-07-13 19:03:50,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:03:50,890 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:50,890 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:50,891 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-07-13 19:03:50,891 INFO L430 AbstractCegarLoop]: === Iteration 176 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:50,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:50,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1731590673, now seen corresponding path program 123 times [2021-07-13 19:03:50,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:50,891 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854414271] [2021-07-13 19:03:50,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:51,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:51,089 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:51,089 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854414271] [2021-07-13 19:03:51,089 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854414271] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:51,089 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:51,089 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-13 19:03:51,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805762821] [2021-07-13 19:03:51,090 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-13 19:03:51,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:51,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-13 19:03:51,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-07-13 19:03:51,090 INFO L87 Difference]: Start difference. First operand 2892 states and 7576 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:51,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:51,441 INFO L93 Difference]: Finished difference Result 3587 states and 9091 transitions. [2021-07-13 19:03:51,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-13 19:03:51,441 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:03:51,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:51,446 INFO L225 Difference]: With dead ends: 3587 [2021-07-13 19:03:51,446 INFO L226 Difference]: Without dead ends: 3587 [2021-07-13 19:03:51,447 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 319.7ms TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-07-13 19:03:51,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3587 states. [2021-07-13 19:03:51,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3587 to 2958. [2021-07-13 19:03:51,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2958 states, 2957 states have (on average 2.604666892120392) internal successors, (7702), 2957 states have internal predecessors, (7702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:51,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2958 states to 2958 states and 7702 transitions. [2021-07-13 19:03:51,489 INFO L78 Accepts]: Start accepts. Automaton has 2958 states and 7702 transitions. Word has length 119 [2021-07-13 19:03:51,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:51,490 INFO L482 AbstractCegarLoop]: Abstraction has 2958 states and 7702 transitions. [2021-07-13 19:03:51,490 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:51,490 INFO L276 IsEmpty]: Start isEmpty. Operand 2958 states and 7702 transitions. [2021-07-13 19:03:51,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:03:51,493 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:51,493 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:51,493 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-07-13 19:03:51,493 INFO L430 AbstractCegarLoop]: === Iteration 177 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:51,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:51,494 INFO L82 PathProgramCache]: Analyzing trace with hash 149250413, now seen corresponding path program 124 times [2021-07-13 19:03:51,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:51,494 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529485924] [2021-07-13 19:03:51,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:51,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:52,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:52,121 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:52,121 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529485924] [2021-07-13 19:03:52,121 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529485924] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:52,121 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:52,122 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:03:52,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615945942] [2021-07-13 19:03:52,122 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:03:52,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:52,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:03:52,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:03:52,122 INFO L87 Difference]: Start difference. First operand 2958 states and 7702 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:52,987 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-07-13 19:03:53,237 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-07-13 19:03:55,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:55,204 INFO L93 Difference]: Finished difference Result 4673 states and 12043 transitions. [2021-07-13 19:03:55,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:03:55,204 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:03:55,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:55,210 INFO L225 Difference]: With dead ends: 4673 [2021-07-13 19:03:55,210 INFO L226 Difference]: Without dead ends: 4503 [2021-07-13 19:03:55,211 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2667.3ms TimeCoverageRelationStatistics Valid=575, Invalid=2965, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:03:55,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4503 states. [2021-07-13 19:03:55,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4503 to 3474. [2021-07-13 19:03:55,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3474 states, 3473 states have (on average 2.632882234379499) internal successors, (9144), 3473 states have internal predecessors, (9144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:55,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3474 states to 3474 states and 9144 transitions. [2021-07-13 19:03:55,255 INFO L78 Accepts]: Start accepts. Automaton has 3474 states and 9144 transitions. Word has length 119 [2021-07-13 19:03:55,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:55,255 INFO L482 AbstractCegarLoop]: Abstraction has 3474 states and 9144 transitions. [2021-07-13 19:03:55,255 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:55,255 INFO L276 IsEmpty]: Start isEmpty. Operand 3474 states and 9144 transitions. [2021-07-13 19:03:55,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:03:55,258 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:55,259 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:55,259 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-07-13 19:03:55,259 INFO L430 AbstractCegarLoop]: === Iteration 178 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:55,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:55,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1153097611, now seen corresponding path program 125 times [2021-07-13 19:03:55,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:55,259 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712692426] [2021-07-13 19:03:55,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:55,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:55,883 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:55,883 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712692426] [2021-07-13 19:03:55,883 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712692426] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:55,883 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:55,884 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:03:55,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906280028] [2021-07-13 19:03:55,884 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:03:55,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:55,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:03:55,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:03:55,884 INFO L87 Difference]: Start difference. First operand 3474 states and 9144 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:56,832 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-07-13 19:03:57,079 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-13 19:03:59,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:03:59,010 INFO L93 Difference]: Finished difference Result 5006 states and 12937 transitions. [2021-07-13 19:03:59,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:03:59,010 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:03:59,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:03:59,017 INFO L225 Difference]: With dead ends: 5006 [2021-07-13 19:03:59,017 INFO L226 Difference]: Without dead ends: 4615 [2021-07-13 19:03:59,017 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 2683.4ms TimeCoverageRelationStatistics Valid=618, Invalid=2922, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:03:59,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4615 states. [2021-07-13 19:03:59,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4615 to 3534. [2021-07-13 19:03:59,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3534 states, 3533 states have (on average 2.618737616756298) internal successors, (9252), 3533 states have internal predecessors, (9252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:59,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3534 states to 3534 states and 9252 transitions. [2021-07-13 19:03:59,062 INFO L78 Accepts]: Start accepts. Automaton has 3534 states and 9252 transitions. Word has length 119 [2021-07-13 19:03:59,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:03:59,062 INFO L482 AbstractCegarLoop]: Abstraction has 3534 states and 9252 transitions. [2021-07-13 19:03:59,062 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:03:59,062 INFO L276 IsEmpty]: Start isEmpty. Operand 3534 states and 9252 transitions. [2021-07-13 19:03:59,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:03:59,065 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:03:59,065 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:03:59,065 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-07-13 19:03:59,065 INFO L430 AbstractCegarLoop]: === Iteration 179 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:03:59,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:03:59,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1933444321, now seen corresponding path program 126 times [2021-07-13 19:03:59,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:03:59,066 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895532636] [2021-07-13 19:03:59,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:03:59,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:03:59,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:03:59,685 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:03:59,685 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895532636] [2021-07-13 19:03:59,685 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895532636] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:03:59,685 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:03:59,685 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:03:59,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971040434] [2021-07-13 19:03:59,685 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:03:59,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:03:59,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:03:59,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:03:59,686 INFO L87 Difference]: Start difference. First operand 3534 states and 9252 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:00,667 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-07-13 19:04:00,896 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-07-13 19:04:03,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:03,042 INFO L93 Difference]: Finished difference Result 4721 states and 12130 transitions. [2021-07-13 19:04:03,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-13 19:04:03,043 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:04:03,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:03,048 INFO L225 Difference]: With dead ends: 4721 [2021-07-13 19:04:03,048 INFO L226 Difference]: Without dead ends: 4291 [2021-07-13 19:04:03,049 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 2857.8ms TimeCoverageRelationStatistics Valid=639, Invalid=3143, Unknown=0, NotChecked=0, Total=3782 [2021-07-13 19:04:03,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4291 states. [2021-07-13 19:04:03,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4291 to 3210. [2021-07-13 19:04:03,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3210 states, 3209 states have (on average 2.6132751636023683) internal successors, (8386), 3209 states have internal predecessors, (8386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:03,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3210 states to 3210 states and 8386 transitions. [2021-07-13 19:04:03,091 INFO L78 Accepts]: Start accepts. Automaton has 3210 states and 8386 transitions. Word has length 119 [2021-07-13 19:04:03,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:03,091 INFO L482 AbstractCegarLoop]: Abstraction has 3210 states and 8386 transitions. [2021-07-13 19:04:03,091 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:03,091 INFO L276 IsEmpty]: Start isEmpty. Operand 3210 states and 8386 transitions. [2021-07-13 19:04:03,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:04:03,094 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:03,094 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:03,094 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-07-13 19:04:03,094 INFO L430 AbstractCegarLoop]: === Iteration 180 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:03,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:03,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1756421371, now seen corresponding path program 127 times [2021-07-13 19:04:03,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:03,095 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569401033] [2021-07-13 19:04:03,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:03,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:03,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:03,720 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:03,720 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569401033] [2021-07-13 19:04:03,720 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569401033] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:03,720 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:03,720 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:04:03,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783259518] [2021-07-13 19:04:03,721 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:04:03,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:03,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:04:03,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:04:03,721 INFO L87 Difference]: Start difference. First operand 3210 states and 8386 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:06,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:06,601 INFO L93 Difference]: Finished difference Result 3888 states and 9973 transitions. [2021-07-13 19:04:06,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:04:06,601 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:04:06,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:06,606 INFO L225 Difference]: With dead ends: 3888 [2021-07-13 19:04:06,606 INFO L226 Difference]: Without dead ends: 3704 [2021-07-13 19:04:06,606 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 2496.0ms TimeCoverageRelationStatistics Valid=628, Invalid=2912, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:04:06,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3704 states. [2021-07-13 19:04:06,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3704 to 3206. [2021-07-13 19:04:06,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3206 states, 3205 states have (on average 2.612792511700468) internal successors, (8374), 3205 states have internal predecessors, (8374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:06,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3206 states to 3206 states and 8374 transitions. [2021-07-13 19:04:06,645 INFO L78 Accepts]: Start accepts. Automaton has 3206 states and 8374 transitions. Word has length 119 [2021-07-13 19:04:06,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:06,645 INFO L482 AbstractCegarLoop]: Abstraction has 3206 states and 8374 transitions. [2021-07-13 19:04:06,645 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:06,645 INFO L276 IsEmpty]: Start isEmpty. Operand 3206 states and 8374 transitions. [2021-07-13 19:04:06,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:04:06,649 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:06,649 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:06,649 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-07-13 19:04:06,649 INFO L430 AbstractCegarLoop]: === Iteration 181 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:06,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:06,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1834230611, now seen corresponding path program 128 times [2021-07-13 19:04:06,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:06,649 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987400412] [2021-07-13 19:04:06,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:07,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:07,298 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:07,298 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987400412] [2021-07-13 19:04:07,298 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987400412] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:07,298 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:07,298 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:04:07,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445436243] [2021-07-13 19:04:07,298 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:04:07,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:07,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:04:07,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:04:07,299 INFO L87 Difference]: Start difference. First operand 3206 states and 8374 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:08,284 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-07-13 19:04:08,656 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 65 [2021-07-13 19:04:08,834 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-07-13 19:04:10,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:10,282 INFO L93 Difference]: Finished difference Result 3727 states and 9535 transitions. [2021-07-13 19:04:10,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 19:04:10,282 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:04:10,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:10,287 INFO L225 Difference]: With dead ends: 3727 [2021-07-13 19:04:10,287 INFO L226 Difference]: Without dead ends: 3513 [2021-07-13 19:04:10,288 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 2623.3ms TimeCoverageRelationStatistics Valid=601, Invalid=2821, Unknown=0, NotChecked=0, Total=3422 [2021-07-13 19:04:10,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3513 states. [2021-07-13 19:04:10,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3513 to 3202. [2021-07-13 19:04:10,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3202 states, 3201 states have (on average 2.611059044048735) internal successors, (8358), 3201 states have internal predecessors, (8358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:10,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3202 states to 3202 states and 8358 transitions. [2021-07-13 19:04:10,328 INFO L78 Accepts]: Start accepts. Automaton has 3202 states and 8358 transitions. Word has length 119 [2021-07-13 19:04:10,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:10,328 INFO L482 AbstractCegarLoop]: Abstraction has 3202 states and 8358 transitions. [2021-07-13 19:04:10,328 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:10,329 INFO L276 IsEmpty]: Start isEmpty. Operand 3202 states and 8358 transitions. [2021-07-13 19:04:10,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:04:10,332 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:10,332 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:10,332 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-07-13 19:04:10,332 INFO L430 AbstractCegarLoop]: === Iteration 182 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:10,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:10,332 INFO L82 PathProgramCache]: Analyzing trace with hash 2027836207, now seen corresponding path program 129 times [2021-07-13 19:04:10,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:10,332 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456622948] [2021-07-13 19:04:10,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:10,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:10,922 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:10,922 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456622948] [2021-07-13 19:04:10,922 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456622948] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:10,922 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:10,922 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:04:10,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917719811] [2021-07-13 19:04:10,922 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:04:10,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:10,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:04:10,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:04:10,923 INFO L87 Difference]: Start difference. First operand 3202 states and 8358 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:12,016 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-07-13 19:04:13,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:13,572 INFO L93 Difference]: Finished difference Result 3883 states and 10001 transitions. [2021-07-13 19:04:13,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 19:04:13,572 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:04:13,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:13,577 INFO L225 Difference]: With dead ends: 3883 [2021-07-13 19:04:13,577 INFO L226 Difference]: Without dead ends: 3753 [2021-07-13 19:04:13,577 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 2229.1ms TimeCoverageRelationStatistics Valid=487, Invalid=2483, Unknown=0, NotChecked=0, Total=2970 [2021-07-13 19:04:13,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3753 states. [2021-07-13 19:04:13,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3753 to 3370. [2021-07-13 19:04:13,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3370 states, 3369 states have (on average 2.604927278124072) internal successors, (8776), 3369 states have internal predecessors, (8776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:13,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3370 states to 3370 states and 8776 transitions. [2021-07-13 19:04:13,616 INFO L78 Accepts]: Start accepts. Automaton has 3370 states and 8776 transitions. Word has length 119 [2021-07-13 19:04:13,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:13,616 INFO L482 AbstractCegarLoop]: Abstraction has 3370 states and 8776 transitions. [2021-07-13 19:04:13,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:13,616 INFO L276 IsEmpty]: Start isEmpty. Operand 3370 states and 8776 transitions. [2021-07-13 19:04:13,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:04:13,620 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:13,620 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:13,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-07-13 19:04:13,620 INFO L430 AbstractCegarLoop]: === Iteration 183 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:13,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:13,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1263283891, now seen corresponding path program 130 times [2021-07-13 19:04:13,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:13,620 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294505974] [2021-07-13 19:04:13,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:14,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:14,229 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:14,229 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294505974] [2021-07-13 19:04:14,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294505974] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:14,229 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:14,229 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:04:14,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596418255] [2021-07-13 19:04:14,230 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:04:14,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:14,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:04:14,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:04:14,230 INFO L87 Difference]: Start difference. First operand 3370 states and 8776 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:16,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:16,641 INFO L93 Difference]: Finished difference Result 4090 states and 10479 transitions. [2021-07-13 19:04:16,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-13 19:04:16,641 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:04:16,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:16,647 INFO L225 Difference]: With dead ends: 4090 [2021-07-13 19:04:16,647 INFO L226 Difference]: Without dead ends: 3839 [2021-07-13 19:04:16,647 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 2076.9ms TimeCoverageRelationStatistics Valid=518, Invalid=2562, Unknown=0, NotChecked=0, Total=3080 [2021-07-13 19:04:16,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3839 states. [2021-07-13 19:04:16,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3839 to 3406. [2021-07-13 19:04:16,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3406 states, 3405 states have (on average 2.595007342143906) internal successors, (8836), 3405 states have internal predecessors, (8836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:16,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 8836 transitions. [2021-07-13 19:04:16,688 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 8836 transitions. Word has length 119 [2021-07-13 19:04:16,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:16,688 INFO L482 AbstractCegarLoop]: Abstraction has 3406 states and 8836 transitions. [2021-07-13 19:04:16,688 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:16,688 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 8836 transitions. [2021-07-13 19:04:16,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:04:16,691 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:16,692 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:16,692 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-07-13 19:04:16,692 INFO L430 AbstractCegarLoop]: === Iteration 184 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:16,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:16,692 INFO L82 PathProgramCache]: Analyzing trace with hash -54858527, now seen corresponding path program 131 times [2021-07-13 19:04:16,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:16,692 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984553509] [2021-07-13 19:04:16,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:17,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:17,324 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:17,324 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984553509] [2021-07-13 19:04:17,324 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984553509] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:17,325 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:17,325 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:04:17,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114254793] [2021-07-13 19:04:17,325 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:04:17,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:17,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:04:17,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:04:17,325 INFO L87 Difference]: Start difference. First operand 3406 states and 8836 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:18,478 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-07-13 19:04:20,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:20,126 INFO L93 Difference]: Finished difference Result 3921 states and 10022 transitions. [2021-07-13 19:04:20,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-13 19:04:20,126 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:04:20,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:20,131 INFO L225 Difference]: With dead ends: 3921 [2021-07-13 19:04:20,131 INFO L226 Difference]: Without dead ends: 3635 [2021-07-13 19:04:20,131 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 2502.7ms TimeCoverageRelationStatistics Valid=520, Invalid=2672, Unknown=0, NotChecked=0, Total=3192 [2021-07-13 19:04:20,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3635 states. [2021-07-13 19:04:20,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3635 to 3202. [2021-07-13 19:04:20,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3202 states, 3201 states have (on average 2.6073102155576384) internal successors, (8346), 3201 states have internal predecessors, (8346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:20,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3202 states to 3202 states and 8346 transitions. [2021-07-13 19:04:20,172 INFO L78 Accepts]: Start accepts. Automaton has 3202 states and 8346 transitions. Word has length 119 [2021-07-13 19:04:20,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:20,172 INFO L482 AbstractCegarLoop]: Abstraction has 3202 states and 8346 transitions. [2021-07-13 19:04:20,172 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:20,172 INFO L276 IsEmpty]: Start isEmpty. Operand 3202 states and 8346 transitions. [2021-07-13 19:04:20,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:04:20,175 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:20,175 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:20,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-07-13 19:04:20,176 INFO L430 AbstractCegarLoop]: === Iteration 185 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:20,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:20,176 INFO L82 PathProgramCache]: Analyzing trace with hash -659960131, now seen corresponding path program 132 times [2021-07-13 19:04:20,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:20,176 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034955131] [2021-07-13 19:04:20,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:20,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:20,803 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:20,803 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034955131] [2021-07-13 19:04:20,803 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034955131] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:20,803 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:20,803 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:04:20,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551929018] [2021-07-13 19:04:20,803 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:04:20,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:20,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:04:20,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:04:20,804 INFO L87 Difference]: Start difference. First operand 3202 states and 8346 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:21,950 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-07-13 19:04:22,473 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2021-07-13 19:04:23,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:23,518 INFO L93 Difference]: Finished difference Result 3610 states and 9302 transitions. [2021-07-13 19:04:23,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 19:04:23,518 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:04:23,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:23,523 INFO L225 Difference]: With dead ends: 3610 [2021-07-13 19:04:23,523 INFO L226 Difference]: Without dead ends: 3466 [2021-07-13 19:04:23,523 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 2439.9ms TimeCoverageRelationStatistics Valid=503, Invalid=2467, Unknown=0, NotChecked=0, Total=2970 [2021-07-13 19:04:23,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3466 states. [2021-07-13 19:04:23,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3466 to 3190. [2021-07-13 19:04:23,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3190 states, 3189 states have (on average 2.6095954844778926) internal successors, (8322), 3189 states have internal predecessors, (8322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:23,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3190 states to 3190 states and 8322 transitions. [2021-07-13 19:04:23,563 INFO L78 Accepts]: Start accepts. Automaton has 3190 states and 8322 transitions. Word has length 119 [2021-07-13 19:04:23,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:23,563 INFO L482 AbstractCegarLoop]: Abstraction has 3190 states and 8322 transitions. [2021-07-13 19:04:23,563 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:23,563 INFO L276 IsEmpty]: Start isEmpty. Operand 3190 states and 8322 transitions. [2021-07-13 19:04:23,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:04:23,566 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:23,566 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:23,566 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-07-13 19:04:23,567 INFO L430 AbstractCegarLoop]: === Iteration 186 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:23,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:23,567 INFO L82 PathProgramCache]: Analyzing trace with hash 2132749643, now seen corresponding path program 133 times [2021-07-13 19:04:23,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:23,567 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563405327] [2021-07-13 19:04:23,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:24,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:24,189 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:24,189 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563405327] [2021-07-13 19:04:24,189 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563405327] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:24,189 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:24,189 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:04:24,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710793509] [2021-07-13 19:04:24,189 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:04:24,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:24,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:04:24,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:04:24,190 INFO L87 Difference]: Start difference. First operand 3190 states and 8322 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:26,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:26,907 INFO L93 Difference]: Finished difference Result 4434 states and 11379 transitions. [2021-07-13 19:04:26,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 19:04:26,907 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:04:26,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:26,912 INFO L225 Difference]: With dead ends: 4434 [2021-07-13 19:04:26,912 INFO L226 Difference]: Without dead ends: 4304 [2021-07-13 19:04:26,912 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 2292.9ms TimeCoverageRelationStatistics Valid=477, Invalid=2493, Unknown=0, NotChecked=0, Total=2970 [2021-07-13 19:04:26,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4304 states. [2021-07-13 19:04:26,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4304 to 3334. [2021-07-13 19:04:26,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3334 states, 3333 states have (on average 2.607860786078608) internal successors, (8692), 3333 states have internal predecessors, (8692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:26,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3334 states to 3334 states and 8692 transitions. [2021-07-13 19:04:26,952 INFO L78 Accepts]: Start accepts. Automaton has 3334 states and 8692 transitions. Word has length 119 [2021-07-13 19:04:26,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:26,952 INFO L482 AbstractCegarLoop]: Abstraction has 3334 states and 8692 transitions. [2021-07-13 19:04:26,952 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:26,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3334 states and 8692 transitions. [2021-07-13 19:04:26,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:04:26,956 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:26,956 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:26,956 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-07-13 19:04:26,956 INFO L430 AbstractCegarLoop]: === Iteration 187 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:26,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:26,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1158370455, now seen corresponding path program 134 times [2021-07-13 19:04:26,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:26,956 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118633495] [2021-07-13 19:04:26,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:27,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:27,584 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:27,584 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118633495] [2021-07-13 19:04:27,584 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118633495] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:27,584 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:27,584 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:04:27,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694064481] [2021-07-13 19:04:27,585 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:04:27,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:27,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:04:27,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:04:27,585 INFO L87 Difference]: Start difference. First operand 3334 states and 8692 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:30,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:30,043 INFO L93 Difference]: Finished difference Result 4641 states and 11857 transitions. [2021-07-13 19:04:30,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-13 19:04:30,043 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:04:30,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:30,048 INFO L225 Difference]: With dead ends: 4641 [2021-07-13 19:04:30,048 INFO L226 Difference]: Without dead ends: 4390 [2021-07-13 19:04:30,048 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 2196.0ms TimeCoverageRelationStatistics Valid=505, Invalid=2575, Unknown=0, NotChecked=0, Total=3080 [2021-07-13 19:04:30,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4390 states. [2021-07-13 19:04:30,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4390 to 3370. [2021-07-13 19:04:30,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3370 states, 3369 states have (on average 2.597803502523004) internal successors, (8752), 3369 states have internal predecessors, (8752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:30,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3370 states to 3370 states and 8752 transitions. [2021-07-13 19:04:30,087 INFO L78 Accepts]: Start accepts. Automaton has 3370 states and 8752 transitions. Word has length 119 [2021-07-13 19:04:30,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:30,087 INFO L482 AbstractCegarLoop]: Abstraction has 3370 states and 8752 transitions. [2021-07-13 19:04:30,087 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:30,087 INFO L276 IsEmpty]: Start isEmpty. Operand 3370 states and 8752 transitions. [2021-07-13 19:04:30,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:04:30,090 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:30,090 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:30,090 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-07-13 19:04:30,090 INFO L430 AbstractCegarLoop]: === Iteration 188 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:30,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:30,091 INFO L82 PathProgramCache]: Analyzing trace with hash 50054909, now seen corresponding path program 135 times [2021-07-13 19:04:30,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:30,091 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486089071] [2021-07-13 19:04:30,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:30,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:30,804 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:30,805 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486089071] [2021-07-13 19:04:30,805 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486089071] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:30,805 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:30,805 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:04:30,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934279347] [2021-07-13 19:04:30,805 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:04:30,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:30,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:04:30,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:04:30,805 INFO L87 Difference]: Start difference. First operand 3370 states and 8752 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:33,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:33,504 INFO L93 Difference]: Finished difference Result 4472 states and 11400 transitions. [2021-07-13 19:04:33,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-13 19:04:33,504 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:04:33,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:33,509 INFO L225 Difference]: With dead ends: 4472 [2021-07-13 19:04:33,509 INFO L226 Difference]: Without dead ends: 4186 [2021-07-13 19:04:33,509 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 2339.1ms TimeCoverageRelationStatistics Valid=509, Invalid=2683, Unknown=0, NotChecked=0, Total=3192 [2021-07-13 19:04:33,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4186 states. [2021-07-13 19:04:33,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4186 to 3166. [2021-07-13 19:04:33,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3166 states, 3165 states have (on average 2.595260663507109) internal successors, (8214), 3165 states have internal predecessors, (8214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:33,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3166 states to 3166 states and 8214 transitions. [2021-07-13 19:04:33,545 INFO L78 Accepts]: Start accepts. Automaton has 3166 states and 8214 transitions. Word has length 119 [2021-07-13 19:04:33,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:33,545 INFO L482 AbstractCegarLoop]: Abstraction has 3166 states and 8214 transitions. [2021-07-13 19:04:33,545 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:33,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3166 states and 8214 transitions. [2021-07-13 19:04:33,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:04:33,548 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:33,548 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:33,548 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-07-13 19:04:33,548 INFO L430 AbstractCegarLoop]: === Iteration 189 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:33,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:33,548 INFO L82 PathProgramCache]: Analyzing trace with hash 706986393, now seen corresponding path program 136 times [2021-07-13 19:04:33,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:33,548 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533703337] [2021-07-13 19:04:33,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:34,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:34,165 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:34,165 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533703337] [2021-07-13 19:04:34,166 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533703337] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:34,166 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:34,166 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:04:34,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844311550] [2021-07-13 19:04:34,166 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:04:34,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:34,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:04:34,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:04:34,166 INFO L87 Difference]: Start difference. First operand 3166 states and 8214 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:36,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:36,993 INFO L93 Difference]: Finished difference Result 4340 states and 10992 transitions. [2021-07-13 19:04:36,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 19:04:36,993 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:04:36,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:36,998 INFO L225 Difference]: With dead ends: 4340 [2021-07-13 19:04:36,998 INFO L226 Difference]: Without dead ends: 4135 [2021-07-13 19:04:36,998 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 2368.1ms TimeCoverageRelationStatistics Valid=520, Invalid=2786, Unknown=0, NotChecked=0, Total=3306 [2021-07-13 19:04:37,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4135 states. [2021-07-13 19:04:37,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4135 to 3106. [2021-07-13 19:04:37,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3106 states, 3105 states have (on average 2.6067632850241544) internal successors, (8094), 3105 states have internal predecessors, (8094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:37,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3106 states to 3106 states and 8094 transitions. [2021-07-13 19:04:37,033 INFO L78 Accepts]: Start accepts. Automaton has 3106 states and 8094 transitions. Word has length 119 [2021-07-13 19:04:37,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:37,033 INFO L482 AbstractCegarLoop]: Abstraction has 3106 states and 8094 transitions. [2021-07-13 19:04:37,033 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:37,033 INFO L276 IsEmpty]: Start isEmpty. Operand 3106 states and 8094 transitions. [2021-07-13 19:04:37,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:04:37,036 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:37,036 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:37,036 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-07-13 19:04:37,037 INFO L430 AbstractCegarLoop]: === Iteration 190 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:37,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:37,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1908947921, now seen corresponding path program 137 times [2021-07-13 19:04:37,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:37,037 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155183958] [2021-07-13 19:04:37,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:37,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:37,664 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:37,664 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155183958] [2021-07-13 19:04:37,664 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155183958] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:37,664 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:37,664 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:04:37,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800130457] [2021-07-13 19:04:37,664 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:04:37,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:37,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:04:37,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:04:37,665 INFO L87 Difference]: Start difference. First operand 3106 states and 8094 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:39,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:39,900 INFO L93 Difference]: Finished difference Result 3560 states and 9158 transitions. [2021-07-13 19:04:39,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 19:04:39,900 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:04:39,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:39,905 INFO L225 Difference]: With dead ends: 3560 [2021-07-13 19:04:39,905 INFO L226 Difference]: Without dead ends: 3428 [2021-07-13 19:04:39,905 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 1997.2ms TimeCoverageRelationStatistics Valid=503, Invalid=2467, Unknown=0, NotChecked=0, Total=2970 [2021-07-13 19:04:39,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3428 states. [2021-07-13 19:04:39,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3428 to 3108. [2021-07-13 19:04:39,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3108 states, 3107 states have (on average 2.6060508529127775) internal successors, (8097), 3107 states have internal predecessors, (8097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:39,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3108 states to 3108 states and 8097 transitions. [2021-07-13 19:04:39,941 INFO L78 Accepts]: Start accepts. Automaton has 3108 states and 8097 transitions. Word has length 119 [2021-07-13 19:04:39,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:39,941 INFO L482 AbstractCegarLoop]: Abstraction has 3108 states and 8097 transitions. [2021-07-13 19:04:39,941 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:39,941 INFO L276 IsEmpty]: Start isEmpty. Operand 3108 states and 8097 transitions. [2021-07-13 19:04:39,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:04:39,968 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:39,968 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:39,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-07-13 19:04:39,968 INFO L430 AbstractCegarLoop]: === Iteration 191 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:39,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:39,968 INFO L82 PathProgramCache]: Analyzing trace with hash 242127883, now seen corresponding path program 138 times [2021-07-13 19:04:39,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:39,969 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074241279] [2021-07-13 19:04:39,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:40,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:40,700 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:40,700 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074241279] [2021-07-13 19:04:40,700 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074241279] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:40,700 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:40,700 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:04:40,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409132722] [2021-07-13 19:04:40,700 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:04:40,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:40,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:04:40,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:04:40,701 INFO L87 Difference]: Start difference. First operand 3108 states and 8097 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:43,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:43,292 INFO L93 Difference]: Finished difference Result 3737 states and 9511 transitions. [2021-07-13 19:04:43,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 19:04:43,293 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:04:43,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:43,298 INFO L225 Difference]: With dead ends: 3737 [2021-07-13 19:04:43,298 INFO L226 Difference]: Without dead ends: 3578 [2021-07-13 19:04:43,298 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 2311.3ms TimeCoverageRelationStatistics Valid=559, Invalid=2747, Unknown=0, NotChecked=0, Total=3306 [2021-07-13 19:04:43,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3578 states. [2021-07-13 19:04:43,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3578 to 3094. [2021-07-13 19:04:43,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3094 states, 3093 states have (on average 2.609117361784675) internal successors, (8070), 3093 states have internal predecessors, (8070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:43,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3094 states to 3094 states and 8070 transitions. [2021-07-13 19:04:43,337 INFO L78 Accepts]: Start accepts. Automaton has 3094 states and 8070 transitions. Word has length 119 [2021-07-13 19:04:43,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:43,337 INFO L482 AbstractCegarLoop]: Abstraction has 3094 states and 8070 transitions. [2021-07-13 19:04:43,337 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:43,337 INFO L276 IsEmpty]: Start isEmpty. Operand 3094 states and 8070 transitions. [2021-07-13 19:04:43,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:04:43,340 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:43,340 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:43,341 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-07-13 19:04:43,342 INFO L430 AbstractCegarLoop]: === Iteration 192 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:43,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:43,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1898146437, now seen corresponding path program 139 times [2021-07-13 19:04:43,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:43,342 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150150325] [2021-07-13 19:04:43,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:43,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:43,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:43,997 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:43,997 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150150325] [2021-07-13 19:04:43,997 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150150325] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:43,997 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:43,997 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:04:43,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119478816] [2021-07-13 19:04:43,998 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:04:43,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:43,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:04:43,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:04:43,998 INFO L87 Difference]: Start difference. First operand 3094 states and 8070 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:45,223 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 65 [2021-07-13 19:04:45,440 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-07-13 19:04:46,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:46,938 INFO L93 Difference]: Finished difference Result 3508 states and 8926 transitions. [2021-07-13 19:04:46,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 19:04:46,939 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:04:46,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:46,943 INFO L225 Difference]: With dead ends: 3508 [2021-07-13 19:04:46,943 INFO L226 Difference]: Without dead ends: 3330 [2021-07-13 19:04:46,944 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 2525.6ms TimeCoverageRelationStatistics Valid=601, Invalid=2821, Unknown=0, NotChecked=0, Total=3422 [2021-07-13 19:04:46,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3330 states. [2021-07-13 19:04:46,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3330 to 3102. [2021-07-13 19:04:46,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3102 states, 3101 states have (on average 2.6069009996775234) internal successors, (8084), 3101 states have internal predecessors, (8084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:46,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3102 states to 3102 states and 8084 transitions. [2021-07-13 19:04:46,980 INFO L78 Accepts]: Start accepts. Automaton has 3102 states and 8084 transitions. Word has length 119 [2021-07-13 19:04:46,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:46,980 INFO L482 AbstractCegarLoop]: Abstraction has 3102 states and 8084 transitions. [2021-07-13 19:04:46,980 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:46,980 INFO L276 IsEmpty]: Start isEmpty. Operand 3102 states and 8084 transitions. [2021-07-13 19:04:46,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:04:46,983 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:46,983 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:46,983 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-07-13 19:04:46,984 INFO L430 AbstractCegarLoop]: === Iteration 193 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:46,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:46,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1378785667, now seen corresponding path program 140 times [2021-07-13 19:04:46,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:46,984 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77039586] [2021-07-13 19:04:46,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:47,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:47,624 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:47,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77039586] [2021-07-13 19:04:47,624 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77039586] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:47,624 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:47,624 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:04:47,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934665150] [2021-07-13 19:04:47,624 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:04:47,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:47,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:04:47,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:04:47,625 INFO L87 Difference]: Start difference. First operand 3102 states and 8084 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:48,977 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-07-13 19:04:49,134 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-07-13 19:04:50,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:50,310 INFO L93 Difference]: Finished difference Result 3334 states and 8556 transitions. [2021-07-13 19:04:50,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 19:04:50,311 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:04:50,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:50,315 INFO L225 Difference]: With dead ends: 3334 [2021-07-13 19:04:50,315 INFO L226 Difference]: Without dead ends: 3202 [2021-07-13 19:04:50,316 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 2305.7ms TimeCoverageRelationStatistics Valid=481, Invalid=2381, Unknown=0, NotChecked=0, Total=2862 [2021-07-13 19:04:50,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3202 states. [2021-07-13 19:04:50,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3202 to 3104. [2021-07-13 19:04:50,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3103 states have (on average 2.606187560425395) internal successors, (8087), 3103 states have internal predecessors, (8087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:50,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 8087 transitions. [2021-07-13 19:04:50,355 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 8087 transitions. Word has length 119 [2021-07-13 19:04:50,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:50,356 INFO L482 AbstractCegarLoop]: Abstraction has 3104 states and 8087 transitions. [2021-07-13 19:04:50,356 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:50,356 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 8087 transitions. [2021-07-13 19:04:50,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:04:50,359 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:50,359 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:50,359 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-07-13 19:04:50,359 INFO L430 AbstractCegarLoop]: === Iteration 194 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:50,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:50,360 INFO L82 PathProgramCache]: Analyzing trace with hash 601066137, now seen corresponding path program 141 times [2021-07-13 19:04:50,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:50,360 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543892165] [2021-07-13 19:04:50,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:51,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:51,041 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:51,041 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543892165] [2021-07-13 19:04:51,041 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543892165] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:51,041 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:51,041 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:04:51,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982501136] [2021-07-13 19:04:51,041 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:04:51,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:51,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:04:51,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:04:51,042 INFO L87 Difference]: Start difference. First operand 3104 states and 8087 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:53,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:53,673 INFO L93 Difference]: Finished difference Result 3501 states and 8884 transitions. [2021-07-13 19:04:53,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-13 19:04:53,673 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:04:53,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:53,677 INFO L225 Difference]: With dead ends: 3501 [2021-07-13 19:04:53,677 INFO L226 Difference]: Without dead ends: 3312 [2021-07-13 19:04:53,678 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 2361.9ms TimeCoverageRelationStatistics Valid=536, Invalid=2656, Unknown=0, NotChecked=0, Total=3192 [2021-07-13 19:04:53,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2021-07-13 19:04:53,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 3060. [2021-07-13 19:04:53,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3060 states, 3059 states have (on average 2.6155606407322654) internal successors, (8001), 3059 states have internal predecessors, (8001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:53,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3060 states to 3060 states and 8001 transitions. [2021-07-13 19:04:53,732 INFO L78 Accepts]: Start accepts. Automaton has 3060 states and 8001 transitions. Word has length 119 [2021-07-13 19:04:53,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:53,733 INFO L482 AbstractCegarLoop]: Abstraction has 3060 states and 8001 transitions. [2021-07-13 19:04:53,733 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:53,733 INFO L276 IsEmpty]: Start isEmpty. Operand 3060 states and 8001 transitions. [2021-07-13 19:04:53,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:04:53,736 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:53,736 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:53,736 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-07-13 19:04:53,736 INFO L430 AbstractCegarLoop]: === Iteration 195 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:53,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:53,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1381846079, now seen corresponding path program 142 times [2021-07-13 19:04:53,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:53,736 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439926084] [2021-07-13 19:04:53,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:53,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:53,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:53,989 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:53,989 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439926084] [2021-07-13 19:04:53,989 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439926084] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:53,989 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:53,989 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 19:04:53,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026771208] [2021-07-13 19:04:53,990 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 19:04:53,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:53,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 19:04:53,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-07-13 19:04:53,990 INFO L87 Difference]: Start difference. First operand 3060 states and 8001 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:54,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:54,519 INFO L93 Difference]: Finished difference Result 3955 states and 9749 transitions. [2021-07-13 19:04:54,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 19:04:54,520 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:04:54,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:54,524 INFO L225 Difference]: With dead ends: 3955 [2021-07-13 19:04:54,525 INFO L226 Difference]: Without dead ends: 3899 [2021-07-13 19:04:54,525 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 434.1ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-07-13 19:04:54,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3899 states. [2021-07-13 19:04:54,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3899 to 2871. [2021-07-13 19:04:54,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2871 states, 2870 states have (on average 2.5846689895470383) internal successors, (7418), 2870 states have internal predecessors, (7418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:54,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2871 states to 2871 states and 7418 transitions. [2021-07-13 19:04:54,565 INFO L78 Accepts]: Start accepts. Automaton has 2871 states and 7418 transitions. Word has length 119 [2021-07-13 19:04:54,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:54,565 INFO L482 AbstractCegarLoop]: Abstraction has 2871 states and 7418 transitions. [2021-07-13 19:04:54,565 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:54,565 INFO L276 IsEmpty]: Start isEmpty. Operand 2871 states and 7418 transitions. [2021-07-13 19:04:54,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:04:54,568 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:54,568 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:54,568 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-07-13 19:04:54,568 INFO L430 AbstractCegarLoop]: === Iteration 196 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:54,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:54,568 INFO L82 PathProgramCache]: Analyzing trace with hash 239606275, now seen corresponding path program 143 times [2021-07-13 19:04:54,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:54,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163631989] [2021-07-13 19:04:54,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:54,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:55,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:55,259 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:55,259 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163631989] [2021-07-13 19:04:55,259 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163631989] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:55,259 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:55,259 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:04:55,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076072744] [2021-07-13 19:04:55,259 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:04:55,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:55,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:04:55,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:04:55,260 INFO L87 Difference]: Start difference. First operand 2871 states and 7418 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:57,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:04:57,182 INFO L93 Difference]: Finished difference Result 3008 states and 7663 transitions. [2021-07-13 19:04:57,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:04:57,182 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:04:57,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:04:57,186 INFO L225 Difference]: With dead ends: 3008 [2021-07-13 19:04:57,186 INFO L226 Difference]: Without dead ends: 2903 [2021-07-13 19:04:57,186 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 1848.9ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:04:57,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2021-07-13 19:04:57,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 2871. [2021-07-13 19:04:57,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2871 states, 2870 states have (on average 2.583275261324042) internal successors, (7414), 2870 states have internal predecessors, (7414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:57,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2871 states to 2871 states and 7414 transitions. [2021-07-13 19:04:57,218 INFO L78 Accepts]: Start accepts. Automaton has 2871 states and 7414 transitions. Word has length 119 [2021-07-13 19:04:57,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:04:57,218 INFO L482 AbstractCegarLoop]: Abstraction has 2871 states and 7414 transitions. [2021-07-13 19:04:57,218 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:04:57,218 INFO L276 IsEmpty]: Start isEmpty. Operand 2871 states and 7414 transitions. [2021-07-13 19:04:57,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:04:57,221 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:04:57,221 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:04:57,221 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-07-13 19:04:57,221 INFO L430 AbstractCegarLoop]: === Iteration 197 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:04:57,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:04:57,222 INFO L82 PathProgramCache]: Analyzing trace with hash 235188135, now seen corresponding path program 144 times [2021-07-13 19:04:57,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:04:57,222 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895476508] [2021-07-13 19:04:57,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:04:57,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:04:57,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:04:57,839 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:04:57,839 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895476508] [2021-07-13 19:04:57,839 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895476508] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:04:57,839 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:04:57,840 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:04:57,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979422119] [2021-07-13 19:04:57,840 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:04:57,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:04:57,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:04:57,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:04:57,840 INFO L87 Difference]: Start difference. First operand 2871 states and 7414 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:00,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:00,057 INFO L93 Difference]: Finished difference Result 3253 states and 8287 transitions. [2021-07-13 19:05:00,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 19:05:00,057 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:05:00,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:00,061 INFO L225 Difference]: With dead ends: 3253 [2021-07-13 19:05:00,061 INFO L226 Difference]: Without dead ends: 3158 [2021-07-13 19:05:00,062 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 1959.7ms TimeCoverageRelationStatistics Valid=452, Invalid=2304, Unknown=0, NotChecked=0, Total=2756 [2021-07-13 19:05:00,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3158 states. [2021-07-13 19:05:00,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3158 to 3015. [2021-07-13 19:05:00,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3015 states, 3014 states have (on average 2.5826144658261447) internal successors, (7784), 3014 states have internal predecessors, (7784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:00,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3015 states to 3015 states and 7784 transitions. [2021-07-13 19:05:00,094 INFO L78 Accepts]: Start accepts. Automaton has 3015 states and 7784 transitions. Word has length 119 [2021-07-13 19:05:00,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:00,094 INFO L482 AbstractCegarLoop]: Abstraction has 3015 states and 7784 transitions. [2021-07-13 19:05:00,094 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:00,094 INFO L276 IsEmpty]: Start isEmpty. Operand 3015 states and 7784 transitions. [2021-07-13 19:05:00,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:05:00,097 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:00,097 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:00,097 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-07-13 19:05:00,097 INFO L430 AbstractCegarLoop]: === Iteration 198 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:00,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:00,097 INFO L82 PathProgramCache]: Analyzing trace with hash -239518167, now seen corresponding path program 145 times [2021-07-13 19:05:00,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:00,098 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591243187] [2021-07-13 19:05:00,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:00,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:00,747 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:00,747 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591243187] [2021-07-13 19:05:00,747 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591243187] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:00,748 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:00,748 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:05:00,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300386710] [2021-07-13 19:05:00,748 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:05:00,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:00,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:05:00,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:05:00,748 INFO L87 Difference]: Start difference. First operand 3015 states and 7784 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:01,766 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-13 19:05:01,987 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-07-13 19:05:03,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:03,569 INFO L93 Difference]: Finished difference Result 3540 states and 8913 transitions. [2021-07-13 19:05:03,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-13 19:05:03,570 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:05:03,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:03,574 INFO L225 Difference]: With dead ends: 3540 [2021-07-13 19:05:03,574 INFO L226 Difference]: Without dead ends: 3045 [2021-07-13 19:05:03,574 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 2344.3ms TimeCoverageRelationStatistics Valid=519, Invalid=2673, Unknown=0, NotChecked=0, Total=3192 [2021-07-13 19:05:03,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3045 states. [2021-07-13 19:05:03,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3045 to 2847. [2021-07-13 19:05:03,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2847 states, 2846 states have (on average 2.5839775122979622) internal successors, (7354), 2846 states have internal predecessors, (7354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:03,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2847 states to 2847 states and 7354 transitions. [2021-07-13 19:05:03,605 INFO L78 Accepts]: Start accepts. Automaton has 2847 states and 7354 transitions. Word has length 119 [2021-07-13 19:05:03,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:03,606 INFO L482 AbstractCegarLoop]: Abstraction has 2847 states and 7354 transitions. [2021-07-13 19:05:03,606 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:03,606 INFO L276 IsEmpty]: Start isEmpty. Operand 2847 states and 7354 transitions. [2021-07-13 19:05:03,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:05:03,608 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:03,608 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:03,608 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-07-13 19:05:03,608 INFO L430 AbstractCegarLoop]: === Iteration 199 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:03,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:03,609 INFO L82 PathProgramCache]: Analyzing trace with hash -683582829, now seen corresponding path program 146 times [2021-07-13 19:05:03,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:03,609 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164949405] [2021-07-13 19:05:03,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:04,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:04,252 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:04,252 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164949405] [2021-07-13 19:05:04,252 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164949405] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:04,252 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:04,252 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:05:04,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517335339] [2021-07-13 19:05:04,252 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:05:04,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:04,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:05:04,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:05:04,253 INFO L87 Difference]: Start difference. First operand 2847 states and 7354 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:05,201 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-13 19:05:05,403 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-07-13 19:05:05,692 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-07-13 19:05:06,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:06,612 INFO L93 Difference]: Finished difference Result 2977 states and 7588 transitions. [2021-07-13 19:05:06,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 19:05:06,612 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:05:06,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:06,616 INFO L225 Difference]: With dead ends: 2977 [2021-07-13 19:05:06,616 INFO L226 Difference]: Without dead ends: 2820 [2021-07-13 19:05:06,616 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 2209.7ms TimeCoverageRelationStatistics Valid=464, Invalid=2292, Unknown=0, NotChecked=0, Total=2756 [2021-07-13 19:05:06,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2820 states. [2021-07-13 19:05:06,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2820 to 2787. [2021-07-13 19:05:06,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2786 states have (on average 2.5979899497487438) internal successors, (7238), 2786 states have internal predecessors, (7238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:06,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 7238 transitions. [2021-07-13 19:05:06,646 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 7238 transitions. Word has length 119 [2021-07-13 19:05:06,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:06,646 INFO L482 AbstractCegarLoop]: Abstraction has 2787 states and 7238 transitions. [2021-07-13 19:05:06,646 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:06,646 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 7238 transitions. [2021-07-13 19:05:06,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:05:06,649 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:06,649 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:06,649 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-07-13 19:05:06,649 INFO L430 AbstractCegarLoop]: === Iteration 200 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:06,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:06,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1038992181, now seen corresponding path program 147 times [2021-07-13 19:05:06,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:06,650 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408698465] [2021-07-13 19:05:06,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:07,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:07,274 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:07,274 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408698465] [2021-07-13 19:05:07,274 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408698465] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:07,274 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:07,274 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:05:07,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499155627] [2021-07-13 19:05:07,274 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:05:07,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:07,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:05:07,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:05:07,275 INFO L87 Difference]: Start difference. First operand 2787 states and 7238 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:08,529 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-13 19:05:08,715 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-07-13 19:05:09,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:09,561 INFO L93 Difference]: Finished difference Result 2944 states and 7544 transitions. [2021-07-13 19:05:09,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:05:09,561 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:05:09,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:09,565 INFO L225 Difference]: With dead ends: 2944 [2021-07-13 19:05:09,565 INFO L226 Difference]: Without dead ends: 2825 [2021-07-13 19:05:09,565 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 2057.0ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:05:09,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2825 states. [2021-07-13 19:05:09,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2825 to 2771. [2021-07-13 19:05:09,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2770 states have (on average 2.6021660649819496) internal successors, (7208), 2770 states have internal predecessors, (7208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:09,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 7208 transitions. [2021-07-13 19:05:09,593 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 7208 transitions. Word has length 119 [2021-07-13 19:05:09,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:09,594 INFO L482 AbstractCegarLoop]: Abstraction has 2771 states and 7208 transitions. [2021-07-13 19:05:09,594 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:09,594 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 7208 transitions. [2021-07-13 19:05:09,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:05:09,596 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:09,596 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:09,596 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-07-13 19:05:09,596 INFO L430 AbstractCegarLoop]: === Iteration 201 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:09,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:09,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1318013099, now seen corresponding path program 148 times [2021-07-13 19:05:09,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:09,597 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291853045] [2021-07-13 19:05:09,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:09,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:09,795 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:09,795 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291853045] [2021-07-13 19:05:09,795 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291853045] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:09,795 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:09,795 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-13 19:05:09,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196100445] [2021-07-13 19:05:09,795 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-13 19:05:09,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:09,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-13 19:05:09,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-07-13 19:05:09,796 INFO L87 Difference]: Start difference. First operand 2771 states and 7208 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:10,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:10,087 INFO L93 Difference]: Finished difference Result 5989 states and 15021 transitions. [2021-07-13 19:05:10,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-13 19:05:10,088 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:05:10,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:10,094 INFO L225 Difference]: With dead ends: 5989 [2021-07-13 19:05:10,094 INFO L226 Difference]: Without dead ends: 5989 [2021-07-13 19:05:10,095 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 285.9ms TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2021-07-13 19:05:10,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5989 states. [2021-07-13 19:05:10,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5989 to 2942. [2021-07-13 19:05:10,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2942 states, 2941 states have (on average 2.5759945596735805) internal successors, (7576), 2941 states have internal predecessors, (7576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:10,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2942 states to 2942 states and 7576 transitions. [2021-07-13 19:05:10,139 INFO L78 Accepts]: Start accepts. Automaton has 2942 states and 7576 transitions. Word has length 119 [2021-07-13 19:05:10,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:10,139 INFO L482 AbstractCegarLoop]: Abstraction has 2942 states and 7576 transitions. [2021-07-13 19:05:10,139 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:10,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2942 states and 7576 transitions. [2021-07-13 19:05:10,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:05:10,142 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:10,142 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:10,142 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-07-13 19:05:10,142 INFO L430 AbstractCegarLoop]: === Iteration 202 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:10,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:10,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1394613937, now seen corresponding path program 149 times [2021-07-13 19:05:10,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:10,142 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958729550] [2021-07-13 19:05:10,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:10,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:10,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:10,750 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:10,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958729550] [2021-07-13 19:05:10,751 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958729550] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:10,751 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:10,751 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:05:10,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297103062] [2021-07-13 19:05:10,751 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:05:10,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:10,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:05:10,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:05:10,751 INFO L87 Difference]: Start difference. First operand 2942 states and 7576 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:11,948 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-07-13 19:05:13,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:13,861 INFO L93 Difference]: Finished difference Result 4606 states and 11760 transitions. [2021-07-13 19:05:13,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:05:13,862 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:05:13,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:13,867 INFO L225 Difference]: With dead ends: 4606 [2021-07-13 19:05:13,868 INFO L226 Difference]: Without dead ends: 4440 [2021-07-13 19:05:13,868 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 2627.0ms TimeCoverageRelationStatistics Valid=575, Invalid=2965, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:05:13,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4440 states. [2021-07-13 19:05:13,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4440 to 3374. [2021-07-13 19:05:13,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3374 states, 3373 states have (on average 2.610139341832197) internal successors, (8804), 3373 states have internal predecessors, (8804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:13,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3374 states to 3374 states and 8804 transitions. [2021-07-13 19:05:13,910 INFO L78 Accepts]: Start accepts. Automaton has 3374 states and 8804 transitions. Word has length 119 [2021-07-13 19:05:13,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:13,910 INFO L482 AbstractCegarLoop]: Abstraction has 3374 states and 8804 transitions. [2021-07-13 19:05:13,910 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:13,910 INFO L276 IsEmpty]: Start isEmpty. Operand 3374 states and 8804 transitions. [2021-07-13 19:05:13,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:05:13,913 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:13,913 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:13,913 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-07-13 19:05:13,913 INFO L430 AbstractCegarLoop]: === Iteration 203 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:13,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:13,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1896506161, now seen corresponding path program 150 times [2021-07-13 19:05:13,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:13,914 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668821973] [2021-07-13 19:05:13,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:13,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:14,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:14,556 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:14,556 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668821973] [2021-07-13 19:05:14,556 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668821973] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:14,556 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:14,556 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:05:14,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097025992] [2021-07-13 19:05:14,557 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:05:14,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:14,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:05:14,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:05:14,557 INFO L87 Difference]: Start difference. First operand 3374 states and 8804 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:15,781 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-13 19:05:17,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:17,736 INFO L93 Difference]: Finished difference Result 4943 states and 12666 transitions. [2021-07-13 19:05:17,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:05:17,736 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:05:17,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:17,743 INFO L225 Difference]: With dead ends: 4943 [2021-07-13 19:05:17,743 INFO L226 Difference]: Without dead ends: 4552 [2021-07-13 19:05:17,743 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 2667.1ms TimeCoverageRelationStatistics Valid=618, Invalid=2922, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:05:17,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4552 states. [2021-07-13 19:05:17,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4552 to 3434. [2021-07-13 19:05:17,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3434 states, 3433 states have (on average 2.595980192251675) internal successors, (8912), 3433 states have internal predecessors, (8912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:17,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 8912 transitions. [2021-07-13 19:05:17,786 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 8912 transitions. Word has length 119 [2021-07-13 19:05:17,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:17,786 INFO L482 AbstractCegarLoop]: Abstraction has 3434 states and 8912 transitions. [2021-07-13 19:05:17,786 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:17,786 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 8912 transitions. [2021-07-13 19:05:17,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:05:17,789 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:17,789 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:17,789 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-07-13 19:05:17,789 INFO L430 AbstractCegarLoop]: === Iteration 204 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:17,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:17,790 INFO L82 PathProgramCache]: Analyzing trace with hash -688080797, now seen corresponding path program 151 times [2021-07-13 19:05:17,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:17,790 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760840215] [2021-07-13 19:05:17,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:18,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:18,531 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:18,531 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760840215] [2021-07-13 19:05:18,531 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760840215] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:18,531 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:18,532 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:05:18,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320079378] [2021-07-13 19:05:18,532 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:05:18,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:18,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:05:18,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:05:18,532 INFO L87 Difference]: Start difference. First operand 3434 states and 8912 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:19,745 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-13 19:05:21,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:21,794 INFO L93 Difference]: Finished difference Result 4658 states and 11859 transitions. [2021-07-13 19:05:21,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-13 19:05:21,795 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:05:21,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:21,801 INFO L225 Difference]: With dead ends: 4658 [2021-07-13 19:05:21,801 INFO L226 Difference]: Without dead ends: 4252 [2021-07-13 19:05:21,801 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 2770.1ms TimeCoverageRelationStatistics Valid=639, Invalid=3143, Unknown=0, NotChecked=0, Total=3782 [2021-07-13 19:05:21,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4252 states. [2021-07-13 19:05:21,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4252 to 3134. [2021-07-13 19:05:21,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 2.5943185445260135) internal successors, (8128), 3133 states have internal predecessors, (8128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:21,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 8128 transitions. [2021-07-13 19:05:21,840 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 8128 transitions. Word has length 119 [2021-07-13 19:05:21,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:21,840 INFO L482 AbstractCegarLoop]: Abstraction has 3134 states and 8128 transitions. [2021-07-13 19:05:21,840 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:21,840 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 8128 transitions. [2021-07-13 19:05:21,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:05:21,843 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:21,843 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:21,843 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-07-13 19:05:21,843 INFO L430 AbstractCegarLoop]: === Iteration 205 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:21,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:21,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1293182401, now seen corresponding path program 152 times [2021-07-13 19:05:21,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:21,844 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382213983] [2021-07-13 19:05:21,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:22,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:22,472 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:22,472 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382213983] [2021-07-13 19:05:22,472 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382213983] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:22,472 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:22,472 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:05:22,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860994876] [2021-07-13 19:05:22,472 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:05:22,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:22,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:05:22,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:05:22,473 INFO L87 Difference]: Start difference. First operand 3134 states and 8128 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:23,655 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-07-13 19:05:24,066 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-07-13 19:05:25,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:25,359 INFO L93 Difference]: Finished difference Result 3846 states and 9777 transitions. [2021-07-13 19:05:25,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:05:25,360 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:05:25,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:25,365 INFO L225 Difference]: With dead ends: 3846 [2021-07-13 19:05:25,365 INFO L226 Difference]: Without dead ends: 3666 [2021-07-13 19:05:25,365 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 2514.3ms TimeCoverageRelationStatistics Valid=628, Invalid=2912, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:05:25,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3666 states. [2021-07-13 19:05:25,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3666 to 3128. [2021-07-13 19:05:25,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 3127 states have (on average 2.5944995203070036) internal successors, (8113), 3127 states have internal predecessors, (8113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:25,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 8113 transitions. [2021-07-13 19:05:25,400 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 8113 transitions. Word has length 119 [2021-07-13 19:05:25,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:25,401 INFO L482 AbstractCegarLoop]: Abstraction has 3128 states and 8113 transitions. [2021-07-13 19:05:25,401 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:25,401 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 8113 transitions. [2021-07-13 19:05:25,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:05:25,404 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:25,404 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:25,404 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-07-13 19:05:25,404 INFO L430 AbstractCegarLoop]: === Iteration 206 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:25,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:25,404 INFO L82 PathProgramCache]: Analyzing trace with hash -588867087, now seen corresponding path program 153 times [2021-07-13 19:05:25,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:25,404 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408625179] [2021-07-13 19:05:25,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:25,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:26,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:26,021 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:26,021 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408625179] [2021-07-13 19:05:26,021 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408625179] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:26,021 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:26,021 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:05:26,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422931553] [2021-07-13 19:05:26,021 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:05:26,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:26,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:05:26,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:05:26,022 INFO L87 Difference]: Start difference. First operand 3128 states and 8113 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:27,366 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-07-13 19:05:27,548 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-07-13 19:05:28,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:28,775 INFO L93 Difference]: Finished difference Result 3689 states and 9343 transitions. [2021-07-13 19:05:28,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 19:05:28,775 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:05:28,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:28,780 INFO L225 Difference]: With dead ends: 3689 [2021-07-13 19:05:28,780 INFO L226 Difference]: Without dead ends: 3479 [2021-07-13 19:05:28,781 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 2380.2ms TimeCoverageRelationStatistics Valid=601, Invalid=2821, Unknown=0, NotChecked=0, Total=3422 [2021-07-13 19:05:28,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2021-07-13 19:05:28,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3118. [2021-07-13 19:05:28,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3118 states, 3117 states have (on average 2.599935835739493) internal successors, (8104), 3117 states have internal predecessors, (8104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:28,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 8104 transitions. [2021-07-13 19:05:28,815 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 8104 transitions. Word has length 119 [2021-07-13 19:05:28,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:28,815 INFO L482 AbstractCegarLoop]: Abstraction has 3118 states and 8104 transitions. [2021-07-13 19:05:28,815 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:28,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 8104 transitions. [2021-07-13 19:05:28,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:05:28,818 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:28,818 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:28,818 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-07-13 19:05:28,819 INFO L430 AbstractCegarLoop]: === Iteration 207 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:28,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:28,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1214591945, now seen corresponding path program 154 times [2021-07-13 19:05:28,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:28,819 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882458429] [2021-07-13 19:05:28,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:28,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:29,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:29,540 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:29,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882458429] [2021-07-13 19:05:29,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882458429] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:29,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:29,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:05:29,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401888604] [2021-07-13 19:05:29,541 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:05:29,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:29,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:05:29,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:05:29,541 INFO L87 Difference]: Start difference. First operand 3118 states and 8104 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:30,862 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-13 19:05:31,036 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-07-13 19:05:32,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:32,529 INFO L93 Difference]: Finished difference Result 3633 states and 9235 transitions. [2021-07-13 19:05:32,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 19:05:32,530 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:05:32,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:32,534 INFO L225 Difference]: With dead ends: 3633 [2021-07-13 19:05:32,534 INFO L226 Difference]: Without dead ends: 3478 [2021-07-13 19:05:32,535 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 2627.7ms TimeCoverageRelationStatistics Valid=604, Invalid=2818, Unknown=0, NotChecked=0, Total=3422 [2021-07-13 19:05:32,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3478 states. [2021-07-13 19:05:32,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3478 to 3124. [2021-07-13 19:05:32,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 2.596541786743516) internal successors, (8109), 3123 states have internal predecessors, (8109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:32,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 8109 transitions. [2021-07-13 19:05:32,569 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 8109 transitions. Word has length 119 [2021-07-13 19:05:32,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:32,569 INFO L482 AbstractCegarLoop]: Abstraction has 3124 states and 8109 transitions. [2021-07-13 19:05:32,569 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:32,569 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 8109 transitions. [2021-07-13 19:05:32,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:05:32,572 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:32,572 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:32,572 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-07-13 19:05:32,573 INFO L430 AbstractCegarLoop]: === Iteration 208 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:32,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:32,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1210173805, now seen corresponding path program 155 times [2021-07-13 19:05:32,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:32,573 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466313055] [2021-07-13 19:05:32,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:33,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:33,205 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:33,205 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466313055] [2021-07-13 19:05:33,205 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466313055] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:33,205 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:33,205 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:05:33,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680314695] [2021-07-13 19:05:33,205 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:05:33,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:33,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:05:33,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:05:33,206 INFO L87 Difference]: Start difference. First operand 3124 states and 8109 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:34,158 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-07-13 19:05:34,374 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-13 19:05:36,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:36,279 INFO L93 Difference]: Finished difference Result 4673 states and 11942 transitions. [2021-07-13 19:05:36,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:05:36,279 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:05:36,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:36,286 INFO L225 Difference]: With dead ends: 4673 [2021-07-13 19:05:36,286 INFO L226 Difference]: Without dead ends: 4528 [2021-07-13 19:05:36,286 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 2692.3ms TimeCoverageRelationStatistics Valid=579, Invalid=2961, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:05:36,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4528 states. [2021-07-13 19:05:36,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4528 to 3412. [2021-07-13 19:05:36,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3412 states, 3411 states have (on average 2.610085019055995) internal successors, (8903), 3411 states have internal predecessors, (8903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:36,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 8903 transitions. [2021-07-13 19:05:36,328 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 8903 transitions. Word has length 119 [2021-07-13 19:05:36,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:36,328 INFO L482 AbstractCegarLoop]: Abstraction has 3412 states and 8903 transitions. [2021-07-13 19:05:36,328 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:36,328 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 8903 transitions. [2021-07-13 19:05:36,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:05:36,331 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:36,332 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:36,332 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-07-13 19:05:36,332 INFO L430 AbstractCegarLoop]: === Iteration 209 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:36,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:36,332 INFO L82 PathProgramCache]: Analyzing trace with hash 735467503, now seen corresponding path program 156 times [2021-07-13 19:05:36,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:36,332 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872137461] [2021-07-13 19:05:36,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:36,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:36,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:36,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:36,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872137461] [2021-07-13 19:05:36,960 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872137461] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:36,960 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:36,960 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:05:36,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079069793] [2021-07-13 19:05:36,960 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:05:36,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:36,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:05:36,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:05:36,960 INFO L87 Difference]: Start difference. First operand 3412 states and 8903 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:37,929 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-07-13 19:05:38,150 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-13 19:05:40,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:40,387 INFO L93 Difference]: Finished difference Result 5103 states and 13023 transitions. [2021-07-13 19:05:40,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 19:05:40,387 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:05:40,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:40,393 INFO L225 Difference]: With dead ends: 5103 [2021-07-13 19:05:40,393 INFO L226 Difference]: Without dead ends: 4321 [2021-07-13 19:05:40,394 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 2949.8ms TimeCoverageRelationStatistics Valid=676, Invalid=3356, Unknown=0, NotChecked=0, Total=4032 [2021-07-13 19:05:40,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4321 states. [2021-07-13 19:05:40,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4321 to 3148. [2021-07-13 19:05:40,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 3147 states have (on average 2.588179218303146) internal successors, (8145), 3147 states have internal predecessors, (8145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:40,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 8145 transitions. [2021-07-13 19:05:40,432 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 8145 transitions. Word has length 119 [2021-07-13 19:05:40,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:40,433 INFO L482 AbstractCegarLoop]: Abstraction has 3148 states and 8145 transitions. [2021-07-13 19:05:40,433 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:40,433 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 8145 transitions. [2021-07-13 19:05:40,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:05:40,436 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:40,436 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:40,436 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-07-13 19:05:40,436 INFO L430 AbstractCegarLoop]: === Iteration 210 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:40,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:40,436 INFO L82 PathProgramCache]: Analyzing trace with hash 291402841, now seen corresponding path program 157 times [2021-07-13 19:05:40,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:40,436 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787391835] [2021-07-13 19:05:40,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:41,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:41,081 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:41,081 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787391835] [2021-07-13 19:05:41,081 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787391835] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:41,081 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:41,081 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:05:41,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489655383] [2021-07-13 19:05:41,081 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:05:41,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:41,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:05:41,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:05:41,082 INFO L87 Difference]: Start difference. First operand 3148 states and 8145 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:42,050 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-07-13 19:05:42,281 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-13 19:05:44,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:44,199 INFO L93 Difference]: Finished difference Result 3885 states and 9872 transitions. [2021-07-13 19:05:44,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:05:44,199 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:05:44,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:44,205 INFO L225 Difference]: With dead ends: 3885 [2021-07-13 19:05:44,205 INFO L226 Difference]: Without dead ends: 3678 [2021-07-13 19:05:44,205 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 2691.1ms TimeCoverageRelationStatistics Valid=628, Invalid=2912, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:05:44,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3678 states. [2021-07-13 19:05:44,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3678 to 3088. [2021-07-13 19:05:44,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3088 states, 3087 states have (on average 2.600907029478458) internal successors, (8029), 3087 states have internal predecessors, (8029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:44,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3088 states to 3088 states and 8029 transitions. [2021-07-13 19:05:44,250 INFO L78 Accepts]: Start accepts. Automaton has 3088 states and 8029 transitions. Word has length 119 [2021-07-13 19:05:44,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:44,250 INFO L482 AbstractCegarLoop]: Abstraction has 3088 states and 8029 transitions. [2021-07-13 19:05:44,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:44,250 INFO L276 IsEmpty]: Start isEmpty. Operand 3088 states and 8029 transitions. [2021-07-13 19:05:44,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:05:44,253 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:44,253 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:44,254 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-07-13 19:05:44,254 INFO L430 AbstractCegarLoop]: === Iteration 211 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:44,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:44,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1535248097, now seen corresponding path program 158 times [2021-07-13 19:05:44,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:44,254 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849957803] [2021-07-13 19:05:44,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:44,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:44,506 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:44,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849957803] [2021-07-13 19:05:44,506 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849957803] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:44,506 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:44,506 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 19:05:44,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555721705] [2021-07-13 19:05:44,506 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 19:05:44,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:44,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 19:05:44,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-07-13 19:05:44,507 INFO L87 Difference]: Start difference. First operand 3088 states and 8029 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:45,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:45,025 INFO L93 Difference]: Finished difference Result 4051 states and 10028 transitions. [2021-07-13 19:05:45,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 19:05:45,026 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:05:45,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:45,031 INFO L225 Difference]: With dead ends: 4051 [2021-07-13 19:05:45,031 INFO L226 Difference]: Without dead ends: 3995 [2021-07-13 19:05:45,031 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 456.8ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-07-13 19:05:45,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3995 states. [2021-07-13 19:05:45,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3995 to 2896. [2021-07-13 19:05:45,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2896 states, 2895 states have (on average 2.5906735751295336) internal successors, (7500), 2895 states have internal predecessors, (7500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:45,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2896 states to 2896 states and 7500 transitions. [2021-07-13 19:05:45,074 INFO L78 Accepts]: Start accepts. Automaton has 2896 states and 7500 transitions. Word has length 119 [2021-07-13 19:05:45,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:45,074 INFO L482 AbstractCegarLoop]: Abstraction has 2896 states and 7500 transitions. [2021-07-13 19:05:45,074 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:45,074 INFO L276 IsEmpty]: Start isEmpty. Operand 2896 states and 7500 transitions. [2021-07-13 19:05:45,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:05:45,077 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:45,077 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:45,077 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-07-13 19:05:45,077 INFO L430 AbstractCegarLoop]: === Iteration 212 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:45,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:45,077 INFO L82 PathProgramCache]: Analyzing trace with hash -290631401, now seen corresponding path program 159 times [2021-07-13 19:05:45,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:45,077 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964242843] [2021-07-13 19:05:45,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:45,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:45,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:45,803 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:45,803 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964242843] [2021-07-13 19:05:45,803 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964242843] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:45,803 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:45,803 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:05:45,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762389104] [2021-07-13 19:05:45,804 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:05:45,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:45,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:05:45,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:05:45,804 INFO L87 Difference]: Start difference. First operand 2896 states and 7500 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:47,069 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-13 19:05:47,278 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-07-13 19:05:48,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:48,194 INFO L93 Difference]: Finished difference Result 3059 states and 7805 transitions. [2021-07-13 19:05:48,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:05:48,195 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:05:48,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:48,199 INFO L225 Difference]: With dead ends: 3059 [2021-07-13 19:05:48,199 INFO L226 Difference]: Without dead ends: 2956 [2021-07-13 19:05:48,199 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 2132.4ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:05:48,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2021-07-13 19:05:48,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 2906. [2021-07-13 19:05:48,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2906 states, 2905 states have (on average 2.5876075731497417) internal successors, (7517), 2905 states have internal predecessors, (7517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:48,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2906 states to 2906 states and 7517 transitions. [2021-07-13 19:05:48,238 INFO L78 Accepts]: Start accepts. Automaton has 2906 states and 7517 transitions. Word has length 119 [2021-07-13 19:05:48,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:48,238 INFO L482 AbstractCegarLoop]: Abstraction has 2906 states and 7517 transitions. [2021-07-13 19:05:48,238 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:48,238 INFO L276 IsEmpty]: Start isEmpty. Operand 2906 states and 7517 transitions. [2021-07-13 19:05:48,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:05:48,242 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:48,242 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:48,242 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-07-13 19:05:48,242 INFO L430 AbstractCegarLoop]: === Iteration 213 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:48,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:48,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1831846923, now seen corresponding path program 160 times [2021-07-13 19:05:48,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:48,242 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061147500] [2021-07-13 19:05:48,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:48,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:48,906 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:48,906 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061147500] [2021-07-13 19:05:48,906 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061147500] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:48,906 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:48,907 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:05:48,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479546342] [2021-07-13 19:05:48,907 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:05:48,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:48,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:05:48,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:05:48,907 INFO L87 Difference]: Start difference. First operand 2906 states and 7517 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:51,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:51,347 INFO L93 Difference]: Finished difference Result 3093 states and 7878 transitions. [2021-07-13 19:05:51,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 19:05:51,347 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:05:51,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:51,351 INFO L225 Difference]: With dead ends: 3093 [2021-07-13 19:05:51,351 INFO L226 Difference]: Without dead ends: 2988 [2021-07-13 19:05:51,352 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 2239.5ms TimeCoverageRelationStatistics Valid=452, Invalid=2304, Unknown=0, NotChecked=0, Total=2756 [2021-07-13 19:05:51,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2021-07-13 19:05:51,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 2908. [2021-07-13 19:05:51,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2908 states, 2907 states have (on average 2.586859305125559) internal successors, (7520), 2907 states have internal predecessors, (7520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:51,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 7520 transitions. [2021-07-13 19:05:51,384 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 7520 transitions. Word has length 119 [2021-07-13 19:05:51,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:51,384 INFO L482 AbstractCegarLoop]: Abstraction has 2908 states and 7520 transitions. [2021-07-13 19:05:51,384 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:51,385 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 7520 transitions. [2021-07-13 19:05:51,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:05:51,387 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:51,387 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:51,387 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-07-13 19:05:51,387 INFO L430 AbstractCegarLoop]: === Iteration 214 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:51,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:51,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1418078527, now seen corresponding path program 161 times [2021-07-13 19:05:51,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:51,388 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589086458] [2021-07-13 19:05:51,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:52,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:52,041 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:52,041 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589086458] [2021-07-13 19:05:52,041 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589086458] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:52,041 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:52,041 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:05:52,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12863853] [2021-07-13 19:05:52,041 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:05:52,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:52,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:05:52,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:05:52,042 INFO L87 Difference]: Start difference. First operand 2908 states and 7520 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:53,465 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-07-13 19:05:54,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:54,363 INFO L93 Difference]: Finished difference Result 3049 states and 7782 transitions. [2021-07-13 19:05:54,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:05:54,363 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:05:54,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:54,367 INFO L225 Difference]: With dead ends: 3049 [2021-07-13 19:05:54,368 INFO L226 Difference]: Without dead ends: 2944 [2021-07-13 19:05:54,368 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 2158.6ms TimeCoverageRelationStatistics Valid=451, Invalid=2201, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:05:54,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2021-07-13 19:05:54,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 2900. [2021-07-13 19:05:54,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2900 states, 2899 states have (on average 2.5881338392549154) internal successors, (7503), 2899 states have internal predecessors, (7503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:54,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2900 states to 2900 states and 7503 transitions. [2021-07-13 19:05:54,406 INFO L78 Accepts]: Start accepts. Automaton has 2900 states and 7503 transitions. Word has length 119 [2021-07-13 19:05:54,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:54,406 INFO L482 AbstractCegarLoop]: Abstraction has 2900 states and 7503 transitions. [2021-07-13 19:05:54,406 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:54,407 INFO L276 IsEmpty]: Start isEmpty. Operand 2900 states and 7503 transitions. [2021-07-13 19:05:54,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:05:54,410 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:54,410 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:54,410 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-07-13 19:05:54,410 INFO L430 AbstractCegarLoop]: === Iteration 215 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:54,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:54,410 INFO L82 PathProgramCache]: Analyzing trace with hash -624725047, now seen corresponding path program 162 times [2021-07-13 19:05:54,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:54,410 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467660534] [2021-07-13 19:05:54,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:55,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:55,030 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:55,030 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467660534] [2021-07-13 19:05:55,030 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467660534] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:55,030 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:55,030 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:05:55,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279217522] [2021-07-13 19:05:55,030 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:05:55,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:55,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:05:55,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:05:55,031 INFO L87 Difference]: Start difference. First operand 2900 states and 7503 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:57,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:05:57,687 INFO L93 Difference]: Finished difference Result 3620 states and 9218 transitions. [2021-07-13 19:05:57,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 19:05:57,688 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:05:57,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:05:57,693 INFO L225 Difference]: With dead ends: 3620 [2021-07-13 19:05:57,693 INFO L226 Difference]: Without dead ends: 3525 [2021-07-13 19:05:57,693 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 2265.1ms TimeCoverageRelationStatistics Valid=464, Invalid=2398, Unknown=0, NotChecked=0, Total=2862 [2021-07-13 19:05:57,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3525 states. [2021-07-13 19:05:57,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3525 to 3104. [2021-07-13 19:05:57,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3103 states have (on average 2.5836287463744765) internal successors, (8017), 3103 states have internal predecessors, (8017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:57,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 8017 transitions. [2021-07-13 19:05:57,736 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 8017 transitions. Word has length 119 [2021-07-13 19:05:57,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:05:57,736 INFO L482 AbstractCegarLoop]: Abstraction has 3104 states and 8017 transitions. [2021-07-13 19:05:57,736 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:05:57,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 8017 transitions. [2021-07-13 19:05:57,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:05:57,740 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:05:57,740 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:05:57,740 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-07-13 19:05:57,741 INFO L430 AbstractCegarLoop]: === Iteration 216 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:05:57,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:05:57,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1099431349, now seen corresponding path program 163 times [2021-07-13 19:05:57,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:05:57,741 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138668242] [2021-07-13 19:05:57,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:05:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:05:58,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:05:58,402 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:05:58,402 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138668242] [2021-07-13 19:05:58,402 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138668242] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:05:58,402 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:05:58,402 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:05:58,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283864873] [2021-07-13 19:05:58,403 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:05:58,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:05:58,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:05:58,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:05:58,403 INFO L87 Difference]: Start difference. First operand 3104 states and 8017 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:00,552 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2021-07-13 19:06:01,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:01,397 INFO L93 Difference]: Finished difference Result 3907 states and 9844 transitions. [2021-07-13 19:06:01,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 19:06:01,397 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:06:01,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:01,401 INFO L225 Difference]: With dead ends: 3907 [2021-07-13 19:06:01,401 INFO L226 Difference]: Without dead ends: 3412 [2021-07-13 19:06:01,402 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 2542.4ms TimeCoverageRelationStatistics Valid=528, Invalid=2778, Unknown=0, NotChecked=0, Total=3306 [2021-07-13 19:06:01,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3412 states. [2021-07-13 19:06:01,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3412 to 2936. [2021-07-13 19:06:01,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2935 states have (on average 2.5686541737649065) internal successors, (7539), 2935 states have internal predecessors, (7539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:01,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 7539 transitions. [2021-07-13 19:06:01,439 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 7539 transitions. Word has length 119 [2021-07-13 19:06:01,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:01,439 INFO L482 AbstractCegarLoop]: Abstraction has 2936 states and 7539 transitions. [2021-07-13 19:06:01,439 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:01,439 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 7539 transitions. [2021-07-13 19:06:01,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:06:01,442 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:01,443 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:01,443 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-07-13 19:06:01,443 INFO L430 AbstractCegarLoop]: === Iteration 217 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:01,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:01,443 INFO L82 PathProgramCache]: Analyzing trace with hash 135546217, now seen corresponding path program 164 times [2021-07-13 19:06:01,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:01,443 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198755907] [2021-07-13 19:06:01,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:01,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:01,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:01,990 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:01,990 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198755907] [2021-07-13 19:06:01,990 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198755907] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:01,990 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:01,990 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:06:01,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605542055] [2021-07-13 19:06:01,990 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:06:01,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:01,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:06:01,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:06:01,990 INFO L87 Difference]: Start difference. First operand 2936 states and 7539 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:04,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:04,517 INFO L93 Difference]: Finished difference Result 3381 states and 8554 transitions. [2021-07-13 19:06:04,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 19:06:04,517 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:06:04,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:04,521 INFO L225 Difference]: With dead ends: 3381 [2021-07-13 19:06:04,521 INFO L226 Difference]: Without dead ends: 3216 [2021-07-13 19:06:04,521 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 2142.7ms TimeCoverageRelationStatistics Valid=464, Invalid=2398, Unknown=0, NotChecked=0, Total=2862 [2021-07-13 19:06:04,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3216 states. [2021-07-13 19:06:04,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3216 to 2876. [2021-07-13 19:06:04,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2876 states, 2875 states have (on average 2.5805217391304347) internal successors, (7419), 2875 states have internal predecessors, (7419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:04,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2876 states to 2876 states and 7419 transitions. [2021-07-13 19:06:04,551 INFO L78 Accepts]: Start accepts. Automaton has 2876 states and 7419 transitions. Word has length 119 [2021-07-13 19:06:04,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:04,552 INFO L482 AbstractCegarLoop]: Abstraction has 2876 states and 7419 transitions. [2021-07-13 19:06:04,552 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:04,552 INFO L276 IsEmpty]: Start isEmpty. Operand 2876 states and 7419 transitions. [2021-07-13 19:06:04,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:06:04,554 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:04,554 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:04,554 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-07-13 19:06:04,554 INFO L430 AbstractCegarLoop]: === Iteration 218 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:04,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:04,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1175804925, now seen corresponding path program 165 times [2021-07-13 19:06:04,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:04,555 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020843965] [2021-07-13 19:06:04,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:05,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:05,163 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:05,163 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020843965] [2021-07-13 19:06:05,164 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020843965] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:05,164 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:05,164 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:06:05,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397975108] [2021-07-13 19:06:05,164 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:06:05,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:05,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:06:05,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:06:05,164 INFO L87 Difference]: Start difference. First operand 2876 states and 7419 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:06,295 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-13 19:06:07,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:07,667 INFO L93 Difference]: Finished difference Result 3280 states and 8337 transitions. [2021-07-13 19:06:07,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 19:06:07,667 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:06:07,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:07,671 INFO L225 Difference]: With dead ends: 3280 [2021-07-13 19:06:07,672 INFO L226 Difference]: Without dead ends: 3185 [2021-07-13 19:06:07,672 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 2246.4ms TimeCoverageRelationStatistics Valid=489, Invalid=2481, Unknown=0, NotChecked=0, Total=2970 [2021-07-13 19:06:07,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3185 states. [2021-07-13 19:06:07,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3185 to 3020. [2021-07-13 19:06:07,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3020 states, 3019 states have (on average 2.579993375289831) internal successors, (7789), 3019 states have internal predecessors, (7789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:07,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3020 states to 3020 states and 7789 transitions. [2021-07-13 19:06:07,709 INFO L78 Accepts]: Start accepts. Automaton has 3020 states and 7789 transitions. Word has length 119 [2021-07-13 19:06:07,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:07,709 INFO L482 AbstractCegarLoop]: Abstraction has 3020 states and 7789 transitions. [2021-07-13 19:06:07,709 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:07,710 INFO L276 IsEmpty]: Start isEmpty. Operand 3020 states and 7789 transitions. [2021-07-13 19:06:07,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:06:07,712 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:07,712 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:07,712 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-07-13 19:06:07,713 INFO L430 AbstractCegarLoop]: === Iteration 219 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:07,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:07,713 INFO L82 PathProgramCache]: Analyzing trace with hash 701098623, now seen corresponding path program 166 times [2021-07-13 19:06:07,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:07,713 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835206351] [2021-07-13 19:06:07,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:08,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:08,398 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:08,398 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835206351] [2021-07-13 19:06:08,398 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835206351] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:08,398 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:08,398 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:06:08,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596071250] [2021-07-13 19:06:08,398 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:06:08,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:08,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:06:08,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:06:08,399 INFO L87 Difference]: Start difference. First operand 3020 states and 7789 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:10,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:10,999 INFO L93 Difference]: Finished difference Result 3567 states and 8963 transitions. [2021-07-13 19:06:11,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 19:06:11,000 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:06:11,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:11,004 INFO L225 Difference]: With dead ends: 3567 [2021-07-13 19:06:11,004 INFO L226 Difference]: Without dead ends: 3072 [2021-07-13 19:06:11,005 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 2330.3ms TimeCoverageRelationStatistics Valid=553, Invalid=2869, Unknown=0, NotChecked=0, Total=3422 [2021-07-13 19:06:11,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states. [2021-07-13 19:06:11,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 2852. [2021-07-13 19:06:11,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 2.5811995790950544) internal successors, (7359), 2851 states have internal predecessors, (7359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:11,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 7359 transitions. [2021-07-13 19:06:11,037 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 7359 transitions. Word has length 119 [2021-07-13 19:06:11,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:11,037 INFO L482 AbstractCegarLoop]: Abstraction has 2852 states and 7359 transitions. [2021-07-13 19:06:11,037 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:11,037 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 7359 transitions. [2021-07-13 19:06:11,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:06:11,040 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:11,040 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:11,040 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-07-13 19:06:11,040 INFO L430 AbstractCegarLoop]: === Iteration 220 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:11,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:11,040 INFO L82 PathProgramCache]: Analyzing trace with hash 257033961, now seen corresponding path program 167 times [2021-07-13 19:06:11,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:11,040 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550175955] [2021-07-13 19:06:11,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:11,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:11,706 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:11,706 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550175955] [2021-07-13 19:06:11,706 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550175955] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:11,706 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:11,706 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:06:11,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532604539] [2021-07-13 19:06:11,706 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:06:11,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:11,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:06:11,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:06:11,707 INFO L87 Difference]: Start difference. First operand 2852 states and 7359 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:12,821 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-13 19:06:13,104 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-07-13 19:06:14,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:14,211 INFO L93 Difference]: Finished difference Result 2999 states and 7630 transitions. [2021-07-13 19:06:14,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 19:06:14,212 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:06:14,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:14,216 INFO L225 Difference]: With dead ends: 2999 [2021-07-13 19:06:14,216 INFO L226 Difference]: Without dead ends: 2890 [2021-07-13 19:06:14,216 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 2364.9ms TimeCoverageRelationStatistics Valid=484, Invalid=2378, Unknown=0, NotChecked=0, Total=2862 [2021-07-13 19:06:14,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2890 states. [2021-07-13 19:06:14,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2890 to 2840. [2021-07-13 19:06:14,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2840 states, 2839 states have (on average 2.583656216977809) internal successors, (7335), 2839 states have internal predecessors, (7335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:14,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2840 states to 2840 states and 7335 transitions. [2021-07-13 19:06:14,253 INFO L78 Accepts]: Start accepts. Automaton has 2840 states and 7335 transitions. Word has length 119 [2021-07-13 19:06:14,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:14,254 INFO L482 AbstractCegarLoop]: Abstraction has 2840 states and 7335 transitions. [2021-07-13 19:06:14,254 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:14,254 INFO L276 IsEmpty]: Start isEmpty. Operand 2840 states and 7335 transitions. [2021-07-13 19:06:14,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:06:14,257 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:14,257 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:14,257 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2021-07-13 19:06:14,257 INFO L430 AbstractCegarLoop]: === Iteration 221 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:14,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:14,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1718417405, now seen corresponding path program 168 times [2021-07-13 19:06:14,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:14,257 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989156229] [2021-07-13 19:06:14,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:14,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:14,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:14,887 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:14,887 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989156229] [2021-07-13 19:06:14,887 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989156229] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:14,887 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:14,887 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:06:14,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513274918] [2021-07-13 19:06:14,888 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:06:14,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:14,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:06:14,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:06:14,888 INFO L87 Difference]: Start difference. First operand 2840 states and 7335 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:17,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:17,256 INFO L93 Difference]: Finished difference Result 3025 states and 7693 transitions. [2021-07-13 19:06:17,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 19:06:17,257 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:06:17,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:17,260 INFO L225 Difference]: With dead ends: 3025 [2021-07-13 19:06:17,261 INFO L226 Difference]: Without dead ends: 2920 [2021-07-13 19:06:17,261 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 2168.8ms TimeCoverageRelationStatistics Valid=471, Invalid=2391, Unknown=0, NotChecked=0, Total=2862 [2021-07-13 19:06:17,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2920 states. [2021-07-13 19:06:17,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2920 to 2842. [2021-07-13 19:06:17,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2842 states, 2841 states have (on average 2.582893347412883) internal successors, (7338), 2841 states have internal predecessors, (7338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:17,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2842 states to 2842 states and 7338 transitions. [2021-07-13 19:06:17,293 INFO L78 Accepts]: Start accepts. Automaton has 2842 states and 7338 transitions. Word has length 119 [2021-07-13 19:06:17,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:17,293 INFO L482 AbstractCegarLoop]: Abstraction has 2842 states and 7338 transitions. [2021-07-13 19:06:17,293 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:17,294 INFO L276 IsEmpty]: Start isEmpty. Operand 2842 states and 7338 transitions. [2021-07-13 19:06:17,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:06:17,296 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:17,296 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:17,296 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2021-07-13 19:06:17,296 INFO L430 AbstractCegarLoop]: === Iteration 222 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:17,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:17,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1776499017, now seen corresponding path program 169 times [2021-07-13 19:06:17,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:17,297 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86388740] [2021-07-13 19:06:17,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:17,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:17,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:17,953 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:17,953 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86388740] [2021-07-13 19:06:17,953 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86388740] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:17,953 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:17,953 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:06:17,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208729171] [2021-07-13 19:06:17,953 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:06:17,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:17,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:06:17,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:06:17,954 INFO L87 Difference]: Start difference. First operand 2842 states and 7338 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:19,260 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2021-07-13 19:06:19,418 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-07-13 19:06:20,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:20,470 INFO L93 Difference]: Finished difference Result 2981 states and 7597 transitions. [2021-07-13 19:06:20,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 19:06:20,470 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:06:20,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:20,474 INFO L225 Difference]: With dead ends: 2981 [2021-07-13 19:06:20,474 INFO L226 Difference]: Without dead ends: 2834 [2021-07-13 19:06:20,474 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 2280.6ms TimeCoverageRelationStatistics Valid=466, Invalid=2290, Unknown=0, NotChecked=0, Total=2756 [2021-07-13 19:06:20,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2834 states. [2021-07-13 19:06:20,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2834 to 2792. [2021-07-13 19:06:20,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2792 states, 2791 states have (on average 2.5947689000358296) internal successors, (7242), 2791 states have internal predecessors, (7242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:20,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2792 states to 2792 states and 7242 transitions. [2021-07-13 19:06:20,511 INFO L78 Accepts]: Start accepts. Automaton has 2792 states and 7242 transitions. Word has length 119 [2021-07-13 19:06:20,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:20,511 INFO L482 AbstractCegarLoop]: Abstraction has 2792 states and 7242 transitions. [2021-07-13 19:06:20,511 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:20,511 INFO L276 IsEmpty]: Start isEmpty. Operand 2792 states and 7242 transitions. [2021-07-13 19:06:20,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:06:20,514 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:20,514 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:20,515 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2021-07-13 19:06:20,515 INFO L430 AbstractCegarLoop]: === Iteration 223 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:20,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:20,515 INFO L82 PathProgramCache]: Analyzing trace with hash -2049675987, now seen corresponding path program 170 times [2021-07-13 19:06:20,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:20,515 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914459373] [2021-07-13 19:06:20,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:21,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:21,157 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:21,157 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914459373] [2021-07-13 19:06:21,157 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914459373] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:21,157 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:21,157 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:06:21,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40212245] [2021-07-13 19:06:21,158 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:06:21,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:21,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:06:21,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:06:21,158 INFO L87 Difference]: Start difference. First operand 2792 states and 7242 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:22,436 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-07-13 19:06:22,634 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-07-13 19:06:23,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:23,544 INFO L93 Difference]: Finished difference Result 2966 states and 7569 transitions. [2021-07-13 19:06:23,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:06:23,544 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:06:23,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:23,548 INFO L225 Difference]: With dead ends: 2966 [2021-07-13 19:06:23,548 INFO L226 Difference]: Without dead ends: 2812 [2021-07-13 19:06:23,548 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 2198.4ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:06:23,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2812 states. [2021-07-13 19:06:23,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2812 to 2776. [2021-07-13 19:06:23,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2776 states, 2775 states have (on average 2.598918918918919) internal successors, (7212), 2775 states have internal predecessors, (7212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:23,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2776 states to 2776 states and 7212 transitions. [2021-07-13 19:06:23,577 INFO L78 Accepts]: Start accepts. Automaton has 2776 states and 7212 transitions. Word has length 119 [2021-07-13 19:06:23,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:23,577 INFO L482 AbstractCegarLoop]: Abstraction has 2776 states and 7212 transitions. [2021-07-13 19:06:23,577 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:23,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2776 states and 7212 transitions. [2021-07-13 19:06:23,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:06:23,580 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:23,580 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:23,580 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2021-07-13 19:06:23,580 INFO L430 AbstractCegarLoop]: === Iteration 224 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:23,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:23,581 INFO L82 PathProgramCache]: Analyzing trace with hash 61417919, now seen corresponding path program 171 times [2021-07-13 19:06:23,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:23,581 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307075821] [2021-07-13 19:06:23,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:24,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:24,204 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:24,205 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307075821] [2021-07-13 19:06:24,205 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307075821] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:24,205 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:24,205 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:06:24,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26629904] [2021-07-13 19:06:24,205 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:06:24,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:24,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:06:24,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:06:24,205 INFO L87 Difference]: Start difference. First operand 2776 states and 7212 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:26,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:26,096 INFO L93 Difference]: Finished difference Result 3032 states and 7728 transitions. [2021-07-13 19:06:26,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:06:26,096 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:06:26,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:26,099 INFO L225 Difference]: With dead ends: 3032 [2021-07-13 19:06:26,099 INFO L226 Difference]: Without dead ends: 2894 [2021-07-13 19:06:26,100 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 1799.2ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:06:26,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2894 states. [2021-07-13 19:06:26,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2894 to 2787. [2021-07-13 19:06:26,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2786 states have (on average 2.5954773869346734) internal successors, (7231), 2786 states have internal predecessors, (7231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:26,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 7231 transitions. [2021-07-13 19:06:26,128 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 7231 transitions. Word has length 119 [2021-07-13 19:06:26,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:26,128 INFO L482 AbstractCegarLoop]: Abstraction has 2787 states and 7231 transitions. [2021-07-13 19:06:26,128 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:26,128 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 7231 transitions. [2021-07-13 19:06:26,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:06:26,130 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:26,131 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:26,131 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2021-07-13 19:06:26,131 INFO L430 AbstractCegarLoop]: === Iteration 225 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:26,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:26,131 INFO L82 PathProgramCache]: Analyzing trace with hash 580778689, now seen corresponding path program 172 times [2021-07-13 19:06:26,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:26,131 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60003123] [2021-07-13 19:06:26,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:26,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:26,759 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:26,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60003123] [2021-07-13 19:06:26,759 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60003123] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:26,759 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:26,759 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:06:26,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709110385] [2021-07-13 19:06:26,759 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:06:26,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:26,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:06:26,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:06:26,760 INFO L87 Difference]: Start difference. First operand 2787 states and 7231 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:29,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:29,138 INFO L93 Difference]: Finished difference Result 3056 states and 7788 transitions. [2021-07-13 19:06:29,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 19:06:29,138 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:06:29,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:29,141 INFO L225 Difference]: With dead ends: 3056 [2021-07-13 19:06:29,141 INFO L226 Difference]: Without dead ends: 2924 [2021-07-13 19:06:29,142 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 2132.0ms TimeCoverageRelationStatistics Valid=481, Invalid=2381, Unknown=0, NotChecked=0, Total=2862 [2021-07-13 19:06:29,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2021-07-13 19:06:29,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 2789. [2021-07-13 19:06:29,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2789 states, 2788 states have (on average 2.5946915351506457) internal successors, (7234), 2788 states have internal predecessors, (7234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:29,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2789 states to 2789 states and 7234 transitions. [2021-07-13 19:06:29,171 INFO L78 Accepts]: Start accepts. Automaton has 2789 states and 7234 transitions. Word has length 119 [2021-07-13 19:06:29,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:29,171 INFO L482 AbstractCegarLoop]: Abstraction has 2789 states and 7234 transitions. [2021-07-13 19:06:29,171 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:29,171 INFO L276 IsEmpty]: Start isEmpty. Operand 2789 states and 7234 transitions. [2021-07-13 19:06:29,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:06:29,174 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:29,174 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:29,174 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2021-07-13 19:06:29,174 INFO L430 AbstractCegarLoop]: === Iteration 226 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:29,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:29,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1734336803, now seen corresponding path program 173 times [2021-07-13 19:06:29,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:29,174 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206971819] [2021-07-13 19:06:29,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:29,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:29,831 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:29,831 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206971819] [2021-07-13 19:06:29,831 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206971819] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:29,831 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:29,831 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:06:29,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536316877] [2021-07-13 19:06:29,831 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:06:29,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:29,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:06:29,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:06:29,832 INFO L87 Difference]: Start difference. First operand 2789 states and 7234 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:32,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:32,596 INFO L93 Difference]: Finished difference Result 3225 states and 8119 transitions. [2021-07-13 19:06:32,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-13 19:06:32,596 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:06:32,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:32,600 INFO L225 Difference]: With dead ends: 3225 [2021-07-13 19:06:32,600 INFO L226 Difference]: Without dead ends: 3072 [2021-07-13 19:06:32,601 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 550 ImplicationChecksByTransitivity, 2414.1ms TimeCoverageRelationStatistics Valid=536, Invalid=2656, Unknown=0, NotChecked=0, Total=3192 [2021-07-13 19:06:32,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states. [2021-07-13 19:06:32,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 2781. [2021-07-13 19:06:32,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2781 states, 2780 states have (on average 2.597122302158273) internal successors, (7220), 2780 states have internal predecessors, (7220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:32,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2781 states to 2781 states and 7220 transitions. [2021-07-13 19:06:32,634 INFO L78 Accepts]: Start accepts. Automaton has 2781 states and 7220 transitions. Word has length 119 [2021-07-13 19:06:32,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:32,634 INFO L482 AbstractCegarLoop]: Abstraction has 2781 states and 7220 transitions. [2021-07-13 19:06:32,634 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:32,634 INFO L276 IsEmpty]: Start isEmpty. Operand 2781 states and 7220 transitions. [2021-07-13 19:06:32,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:06:32,636 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:32,636 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:32,637 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2021-07-13 19:06:32,637 INFO L430 AbstractCegarLoop]: === Iteration 227 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:32,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:32,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1693291895, now seen corresponding path program 174 times [2021-07-13 19:06:32,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:32,637 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631572683] [2021-07-13 19:06:32,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:33,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:33,279 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:33,279 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631572683] [2021-07-13 19:06:33,279 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631572683] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:33,280 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:33,280 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:06:33,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129769863] [2021-07-13 19:06:33,280 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:06:33,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:33,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:06:33,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:06:33,280 INFO L87 Difference]: Start difference. First operand 2781 states and 7220 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:34,384 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-07-13 19:06:34,591 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-07-13 19:06:35,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:35,357 INFO L93 Difference]: Finished difference Result 2979 states and 7619 transitions. [2021-07-13 19:06:35,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:06:35,357 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:06:35,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:35,361 INFO L225 Difference]: With dead ends: 2979 [2021-07-13 19:06:35,361 INFO L226 Difference]: Without dead ends: 2872 [2021-07-13 19:06:35,362 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 1922.2ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:06:35,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2021-07-13 19:06:35,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 2777. [2021-07-13 19:06:35,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2777 states, 2776 states have (on average 2.5979827089337175) internal successors, (7212), 2776 states have internal predecessors, (7212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:35,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2777 states to 2777 states and 7212 transitions. [2021-07-13 19:06:35,392 INFO L78 Accepts]: Start accepts. Automaton has 2777 states and 7212 transitions. Word has length 119 [2021-07-13 19:06:35,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:35,392 INFO L482 AbstractCegarLoop]: Abstraction has 2777 states and 7212 transitions. [2021-07-13 19:06:35,392 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:35,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2777 states and 7212 transitions. [2021-07-13 19:06:35,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:06:35,395 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:35,395 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:35,395 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2021-07-13 19:06:35,395 INFO L430 AbstractCegarLoop]: === Iteration 228 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:35,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:35,395 INFO L82 PathProgramCache]: Analyzing trace with hash 373296891, now seen corresponding path program 175 times [2021-07-13 19:06:35,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:35,395 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198542338] [2021-07-13 19:06:35,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:35,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:35,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:35,996 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:35,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198542338] [2021-07-13 19:06:35,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198542338] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:35,996 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:35,996 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:06:35,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58736441] [2021-07-13 19:06:35,996 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:06:35,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:35,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:06:35,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:06:35,997 INFO L87 Difference]: Start difference. First operand 2777 states and 7212 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:38,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:38,100 INFO L93 Difference]: Finished difference Result 2978 states and 7604 transitions. [2021-07-13 19:06:38,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:06:38,100 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:06:38,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:38,104 INFO L225 Difference]: With dead ends: 2978 [2021-07-13 19:06:38,104 INFO L226 Difference]: Without dead ends: 2840 [2021-07-13 19:06:38,104 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 1931.6ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:06:38,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2840 states. [2021-07-13 19:06:38,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2840 to 2780. [2021-07-13 19:06:38,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2779 states have (on average 2.596977329974811) internal successors, (7217), 2779 states have internal predecessors, (7217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:38,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 7217 transitions. [2021-07-13 19:06:38,137 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 7217 transitions. Word has length 119 [2021-07-13 19:06:38,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:38,137 INFO L482 AbstractCegarLoop]: Abstraction has 2780 states and 7217 transitions. [2021-07-13 19:06:38,137 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:38,137 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 7217 transitions. [2021-07-13 19:06:38,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:06:38,140 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:38,140 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:38,140 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-07-13 19:06:38,140 INFO L430 AbstractCegarLoop]: === Iteration 229 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:38,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:38,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1499705475, now seen corresponding path program 176 times [2021-07-13 19:06:38,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:38,140 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640490194] [2021-07-13 19:06:38,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:38,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:38,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:38,816 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:38,816 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640490194] [2021-07-13 19:06:38,816 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640490194] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:38,816 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:38,816 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:06:38,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985113835] [2021-07-13 19:06:38,816 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:06:38,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:38,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:06:38,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:06:38,817 INFO L87 Difference]: Start difference. First operand 2780 states and 7217 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:40,039 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-13 19:06:40,243 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-07-13 19:06:41,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:41,117 INFO L93 Difference]: Finished difference Result 2937 states and 7523 transitions. [2021-07-13 19:06:41,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:06:41,118 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:06:41,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:41,121 INFO L225 Difference]: With dead ends: 2937 [2021-07-13 19:06:41,121 INFO L226 Difference]: Without dead ends: 2832 [2021-07-13 19:06:41,122 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 2131.7ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:06:41,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2832 states. [2021-07-13 19:06:41,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2832 to 2781. [2021-07-13 19:06:41,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2781 states, 2780 states have (on average 2.594244604316547) internal successors, (7212), 2780 states have internal predecessors, (7212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:41,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2781 states to 2781 states and 7212 transitions. [2021-07-13 19:06:41,153 INFO L78 Accepts]: Start accepts. Automaton has 2781 states and 7212 transitions. Word has length 119 [2021-07-13 19:06:41,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:41,153 INFO L482 AbstractCegarLoop]: Abstraction has 2781 states and 7212 transitions. [2021-07-13 19:06:41,153 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:41,153 INFO L276 IsEmpty]: Start isEmpty. Operand 2781 states and 7212 transitions. [2021-07-13 19:06:41,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:06:41,155 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:41,156 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:41,156 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2021-07-13 19:06:41,156 INFO L430 AbstractCegarLoop]: === Iteration 230 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:41,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:41,156 INFO L82 PathProgramCache]: Analyzing trace with hash 843006233, now seen corresponding path program 177 times [2021-07-13 19:06:41,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:41,156 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416607148] [2021-07-13 19:06:41,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:41,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:41,730 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:41,730 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416607148] [2021-07-13 19:06:41,730 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416607148] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:41,730 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:41,730 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:06:41,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165185834] [2021-07-13 19:06:41,730 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:06:41,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:41,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:06:41,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:06:41,731 INFO L87 Difference]: Start difference. First operand 2781 states and 7212 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:43,243 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-07-13 19:06:43,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:43,960 INFO L93 Difference]: Finished difference Result 2969 states and 7588 transitions. [2021-07-13 19:06:43,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 19:06:43,960 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:06:43,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:43,963 INFO L225 Difference]: With dead ends: 2969 [2021-07-13 19:06:43,964 INFO L226 Difference]: Without dead ends: 2864 [2021-07-13 19:06:43,964 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 2010.7ms TimeCoverageRelationStatistics Valid=455, Invalid=2301, Unknown=0, NotChecked=0, Total=2756 [2021-07-13 19:06:43,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2864 states. [2021-07-13 19:06:43,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2864 to 2780. [2021-07-13 19:06:43,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2779 states have (on average 2.5930190716084924) internal successors, (7206), 2779 states have internal predecessors, (7206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:43,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 7206 transitions. [2021-07-13 19:06:43,994 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 7206 transitions. Word has length 119 [2021-07-13 19:06:43,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:43,994 INFO L482 AbstractCegarLoop]: Abstraction has 2780 states and 7206 transitions. [2021-07-13 19:06:43,994 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:43,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 7206 transitions. [2021-07-13 19:06:43,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:06:43,997 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:43,997 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:43,997 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2021-07-13 19:06:43,997 INFO L430 AbstractCegarLoop]: === Iteration 231 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:43,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:43,997 INFO L82 PathProgramCache]: Analyzing trace with hash 429237837, now seen corresponding path program 178 times [2021-07-13 19:06:43,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:43,997 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912630130] [2021-07-13 19:06:43,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:44,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:44,634 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:44,634 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912630130] [2021-07-13 19:06:44,634 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912630130] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:44,634 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:44,634 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:06:44,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709121856] [2021-07-13 19:06:44,635 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:06:44,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:44,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:06:44,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:06:44,635 INFO L87 Difference]: Start difference. First operand 2780 states and 7206 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:46,035 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-07-13 19:06:46,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:46,936 INFO L93 Difference]: Finished difference Result 2925 states and 7492 transitions. [2021-07-13 19:06:46,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:06:46,936 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:06:46,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:46,940 INFO L225 Difference]: With dead ends: 2925 [2021-07-13 19:06:46,940 INFO L226 Difference]: Without dead ends: 2804 [2021-07-13 19:06:46,940 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 2090.0ms TimeCoverageRelationStatistics Valid=451, Invalid=2201, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:06:46,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2021-07-13 19:06:46,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2756. [2021-07-13 19:06:46,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2756 states, 2755 states have (on average 2.6003629764065335) internal successors, (7164), 2755 states have internal predecessors, (7164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:47,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2756 states to 2756 states and 7164 transitions. [2021-07-13 19:06:47,000 INFO L78 Accepts]: Start accepts. Automaton has 2756 states and 7164 transitions. Word has length 119 [2021-07-13 19:06:47,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:47,000 INFO L482 AbstractCegarLoop]: Abstraction has 2756 states and 7164 transitions. [2021-07-13 19:06:47,000 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:47,000 INFO L276 IsEmpty]: Start isEmpty. Operand 2756 states and 7164 transitions. [2021-07-13 19:06:47,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:06:47,003 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:47,003 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:47,003 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2021-07-13 19:06:47,003 INFO L430 AbstractCegarLoop]: === Iteration 232 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:47,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:47,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1831283731, now seen corresponding path program 179 times [2021-07-13 19:06:47,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:47,003 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940856903] [2021-07-13 19:06:47,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:47,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:47,214 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:47,214 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940856903] [2021-07-13 19:06:47,214 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940856903] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:47,214 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:47,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-07-13 19:06:47,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990335251] [2021-07-13 19:06:47,215 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-13 19:06:47,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:47,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-13 19:06:47,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-07-13 19:06:47,215 INFO L87 Difference]: Start difference. First operand 2756 states and 7164 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:47,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:47,525 INFO L93 Difference]: Finished difference Result 3807 states and 9489 transitions. [2021-07-13 19:06:47,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-13 19:06:47,526 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:06:47,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:47,531 INFO L225 Difference]: With dead ends: 3807 [2021-07-13 19:06:47,531 INFO L226 Difference]: Without dead ends: 3807 [2021-07-13 19:06:47,531 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 301.9ms TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2021-07-13 19:06:47,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3807 states. [2021-07-13 19:06:47,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3807 to 2807. [2021-07-13 19:06:47,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2807 states, 2806 states have (on average 2.55880256593015) internal successors, (7180), 2806 states have internal predecessors, (7180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:47,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2807 states to 2807 states and 7180 transitions. [2021-07-13 19:06:47,568 INFO L78 Accepts]: Start accepts. Automaton has 2807 states and 7180 transitions. Word has length 119 [2021-07-13 19:06:47,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:47,568 INFO L482 AbstractCegarLoop]: Abstraction has 2807 states and 7180 transitions. [2021-07-13 19:06:47,568 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:47,568 INFO L276 IsEmpty]: Start isEmpty. Operand 2807 states and 7180 transitions. [2021-07-13 19:06:47,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:06:47,571 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:47,571 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:47,571 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2021-07-13 19:06:47,571 INFO L430 AbstractCegarLoop]: === Iteration 233 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:47,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:47,571 INFO L82 PathProgramCache]: Analyzing trace with hash 881343305, now seen corresponding path program 180 times [2021-07-13 19:06:47,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:47,571 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612027936] [2021-07-13 19:06:47,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:48,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:48,195 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:48,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612027936] [2021-07-13 19:06:48,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612027936] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:48,196 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:48,196 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:06:48,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417237265] [2021-07-13 19:06:48,196 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:06:48,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:48,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:06:48,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:06:48,196 INFO L87 Difference]: Start difference. First operand 2807 states and 7180 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:49,100 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-07-13 19:06:49,355 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-07-13 19:06:51,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:51,331 INFO L93 Difference]: Finished difference Result 3773 states and 9404 transitions. [2021-07-13 19:06:51,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:06:51,331 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:06:51,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:51,335 INFO L225 Difference]: With dead ends: 3773 [2021-07-13 19:06:51,336 INFO L226 Difference]: Without dead ends: 3607 [2021-07-13 19:06:51,336 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 643 ImplicationChecksByTransitivity, 2633.5ms TimeCoverageRelationStatistics Valid=576, Invalid=2964, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:06:51,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3607 states. [2021-07-13 19:06:51,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3607 to 2807. [2021-07-13 19:06:51,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2807 states, 2806 states have (on average 2.5516749821810407) internal successors, (7160), 2806 states have internal predecessors, (7160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:51,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2807 states to 2807 states and 7160 transitions. [2021-07-13 19:06:51,369 INFO L78 Accepts]: Start accepts. Automaton has 2807 states and 7160 transitions. Word has length 119 [2021-07-13 19:06:51,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:51,369 INFO L482 AbstractCegarLoop]: Abstraction has 2807 states and 7160 transitions. [2021-07-13 19:06:51,369 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:51,369 INFO L276 IsEmpty]: Start isEmpty. Operand 2807 states and 7160 transitions. [2021-07-13 19:06:51,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:06:51,372 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:51,372 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:51,372 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2021-07-13 19:06:51,372 INFO L430 AbstractCegarLoop]: === Iteration 234 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:51,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:51,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1885190503, now seen corresponding path program 181 times [2021-07-13 19:06:51,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:51,372 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006639612] [2021-07-13 19:06:51,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:51,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:52,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:52,019 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:52,019 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006639612] [2021-07-13 19:06:52,019 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006639612] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:52,019 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:52,019 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:06:52,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47064560] [2021-07-13 19:06:52,019 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:06:52,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:52,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:06:52,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:06:52,020 INFO L87 Difference]: Start difference. First operand 2807 states and 7160 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:52,943 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-07-13 19:06:53,200 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-13 19:06:55,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:55,210 INFO L93 Difference]: Finished difference Result 4110 states and 10310 transitions. [2021-07-13 19:06:55,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:06:55,210 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:06:55,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:55,215 INFO L225 Difference]: With dead ends: 4110 [2021-07-13 19:06:55,215 INFO L226 Difference]: Without dead ends: 3719 [2021-07-13 19:06:55,215 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 2699.3ms TimeCoverageRelationStatistics Valid=619, Invalid=2921, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:06:55,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3719 states. [2021-07-13 19:06:55,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3719 to 2867. [2021-07-13 19:06:55,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2867 states, 2866 states have (on average 2.5359385903698533) internal successors, (7268), 2866 states have internal predecessors, (7268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:55,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2867 states to 2867 states and 7268 transitions. [2021-07-13 19:06:55,250 INFO L78 Accepts]: Start accepts. Automaton has 2867 states and 7268 transitions. Word has length 119 [2021-07-13 19:06:55,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:55,250 INFO L482 AbstractCegarLoop]: Abstraction has 2867 states and 7268 transitions. [2021-07-13 19:06:55,250 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:55,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2867 states and 7268 transitions. [2021-07-13 19:06:55,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:06:55,253 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:55,253 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:55,253 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2021-07-13 19:06:55,253 INFO L430 AbstractCegarLoop]: === Iteration 235 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:55,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:55,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1201351429, now seen corresponding path program 182 times [2021-07-13 19:06:55,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:55,253 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176881983] [2021-07-13 19:06:55,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:55,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:55,818 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:55,818 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176881983] [2021-07-13 19:06:55,818 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176881983] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:55,818 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:55,818 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:06:55,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387550478] [2021-07-13 19:06:55,818 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:06:55,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:55,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:06:55,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:06:55,819 INFO L87 Difference]: Start difference. First operand 2867 states and 7268 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:56,672 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-07-13 19:06:56,925 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-13 19:06:58,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:06:58,953 INFO L93 Difference]: Finished difference Result 3825 states and 9503 transitions. [2021-07-13 19:06:58,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-07-13 19:06:58,953 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:06:58,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:06:58,957 INFO L225 Difference]: With dead ends: 3825 [2021-07-13 19:06:58,957 INFO L226 Difference]: Without dead ends: 3419 [2021-07-13 19:06:58,957 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 2717.1ms TimeCoverageRelationStatistics Valid=640, Invalid=3142, Unknown=0, NotChecked=0, Total=3782 [2021-07-13 19:06:58,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2021-07-13 19:06:58,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 2567. [2021-07-13 19:06:58,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2567 states, 2566 states have (on average 2.5268901013250193) internal successors, (6484), 2566 states have internal predecessors, (6484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:58,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2567 states to 2567 states and 6484 transitions. [2021-07-13 19:06:58,985 INFO L78 Accepts]: Start accepts. Automaton has 2567 states and 6484 transitions. Word has length 119 [2021-07-13 19:06:58,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:06:58,985 INFO L482 AbstractCegarLoop]: Abstraction has 2567 states and 6484 transitions. [2021-07-13 19:06:58,985 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:06:58,985 INFO L276 IsEmpty]: Start isEmpty. Operand 2567 states and 6484 transitions. [2021-07-13 19:06:58,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:06:58,987 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:06:58,987 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:06:58,987 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2021-07-13 19:06:58,988 INFO L430 AbstractCegarLoop]: === Iteration 236 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:06:58,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:06:58,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1806453033, now seen corresponding path program 183 times [2021-07-13 19:06:58,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:06:58,988 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752617572] [2021-07-13 19:06:58,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:06:59,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:06:59,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:06:59,605 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:06:59,605 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752617572] [2021-07-13 19:06:59,605 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752617572] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:06:59,605 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:06:59,605 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:06:59,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375205509] [2021-07-13 19:06:59,605 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:06:59,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:06:59,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:06:59,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:06:59,606 INFO L87 Difference]: Start difference. First operand 2567 states and 6484 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:00,455 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-07-13 19:07:00,706 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-07-13 19:07:01,109 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-07-13 19:07:02,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:02,584 INFO L93 Difference]: Finished difference Result 3075 states and 7589 transitions. [2021-07-13 19:07:02,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:07:02,584 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:07:02,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:02,587 INFO L225 Difference]: With dead ends: 3075 [2021-07-13 19:07:02,587 INFO L226 Difference]: Without dead ends: 2895 [2021-07-13 19:07:02,587 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 663 ImplicationChecksByTransitivity, 2702.1ms TimeCoverageRelationStatistics Valid=629, Invalid=2911, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:07:02,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2895 states. [2021-07-13 19:07:02,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2895 to 2561. [2021-07-13 19:07:02,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2561 states, 2560 states have (on average 2.526953125) internal successors, (6469), 2560 states have internal predecessors, (6469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:02,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2561 states to 2561 states and 6469 transitions. [2021-07-13 19:07:02,613 INFO L78 Accepts]: Start accepts. Automaton has 2561 states and 6469 transitions. Word has length 119 [2021-07-13 19:07:02,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:02,613 INFO L482 AbstractCegarLoop]: Abstraction has 2561 states and 6469 transitions. [2021-07-13 19:07:02,613 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:02,613 INFO L276 IsEmpty]: Start isEmpty. Operand 2561 states and 6469 transitions. [2021-07-13 19:07:02,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:07:02,615 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:02,615 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:02,615 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2021-07-13 19:07:02,615 INFO L430 AbstractCegarLoop]: === Iteration 237 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:02,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:02,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1102137719, now seen corresponding path program 184 times [2021-07-13 19:07:02,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:02,616 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84843190] [2021-07-13 19:07:02,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:03,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:03,217 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:03,217 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84843190] [2021-07-13 19:07:03,217 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84843190] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:03,217 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:03,217 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:07:03,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806074695] [2021-07-13 19:07:03,218 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:07:03,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:03,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:07:03,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:07:03,218 INFO L87 Difference]: Start difference. First operand 2561 states and 6469 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:04,127 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2021-07-13 19:07:04,548 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-07-13 19:07:04,746 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-07-13 19:07:06,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:06,211 INFO L93 Difference]: Finished difference Result 2944 states and 7227 transitions. [2021-07-13 19:07:06,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 19:07:06,211 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:07:06,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:06,214 INFO L225 Difference]: With dead ends: 2944 [2021-07-13 19:07:06,214 INFO L226 Difference]: Without dead ends: 2734 [2021-07-13 19:07:06,215 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 2567.9ms TimeCoverageRelationStatistics Valid=602, Invalid=2820, Unknown=0, NotChecked=0, Total=3422 [2021-07-13 19:07:06,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2734 states. [2021-07-13 19:07:06,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2734 to 2551. [2021-07-13 19:07:06,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2551 states, 2550 states have (on average 2.533333333333333) internal successors, (6460), 2550 states have internal predecessors, (6460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:06,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2551 states to 2551 states and 6460 transitions. [2021-07-13 19:07:06,240 INFO L78 Accepts]: Start accepts. Automaton has 2551 states and 6460 transitions. Word has length 119 [2021-07-13 19:07:06,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:06,240 INFO L482 AbstractCegarLoop]: Abstraction has 2551 states and 6460 transitions. [2021-07-13 19:07:06,240 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:06,240 INFO L276 IsEmpty]: Start isEmpty. Operand 2551 states and 6460 transitions. [2021-07-13 19:07:06,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:07:06,242 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:06,242 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:06,242 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2021-07-13 19:07:06,242 INFO L430 AbstractCegarLoop]: === Iteration 238 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:06,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:06,243 INFO L82 PathProgramCache]: Analyzing trace with hash 701321313, now seen corresponding path program 185 times [2021-07-13 19:07:06,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:06,243 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990614220] [2021-07-13 19:07:06,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:06,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:06,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:06,906 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:06,906 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990614220] [2021-07-13 19:07:06,906 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990614220] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:06,906 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:06,906 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:07:06,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013278031] [2021-07-13 19:07:06,906 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:07:06,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:06,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:07:06,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:07:06,907 INFO L87 Difference]: Start difference. First operand 2551 states and 6460 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:08,239 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2021-07-13 19:07:08,433 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-07-13 19:07:09,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:09,935 INFO L93 Difference]: Finished difference Result 2888 states and 7119 transitions. [2021-07-13 19:07:09,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 19:07:09,935 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:07:09,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:09,938 INFO L225 Difference]: With dead ends: 2888 [2021-07-13 19:07:09,938 INFO L226 Difference]: Without dead ends: 2733 [2021-07-13 19:07:09,938 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 675 ImplicationChecksByTransitivity, 2539.2ms TimeCoverageRelationStatistics Valid=605, Invalid=2817, Unknown=0, NotChecked=0, Total=3422 [2021-07-13 19:07:09,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2733 states. [2021-07-13 19:07:09,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2733 to 2557. [2021-07-13 19:07:09,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2557 states, 2556 states have (on average 2.529342723004695) internal successors, (6465), 2556 states have internal predecessors, (6465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:09,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 6465 transitions. [2021-07-13 19:07:09,963 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 6465 transitions. Word has length 119 [2021-07-13 19:07:09,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:09,964 INFO L482 AbstractCegarLoop]: Abstraction has 2557 states and 6465 transitions. [2021-07-13 19:07:09,964 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:09,964 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 6465 transitions. [2021-07-13 19:07:09,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:07:09,966 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:09,966 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:09,966 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2021-07-13 19:07:09,966 INFO L430 AbstractCegarLoop]: === Iteration 239 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:09,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:09,966 INFO L82 PathProgramCache]: Analyzing trace with hash 696903173, now seen corresponding path program 186 times [2021-07-13 19:07:09,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:09,967 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618993863] [2021-07-13 19:07:09,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:09,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:10,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:10,588 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:10,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618993863] [2021-07-13 19:07:10,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618993863] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:10,588 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:10,588 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:07:10,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750374160] [2021-07-13 19:07:10,588 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:07:10,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:10,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:07:10,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:07:10,589 INFO L87 Difference]: Start difference. First operand 2557 states and 6465 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:11,466 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-07-13 19:07:11,704 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-13 19:07:13,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:13,635 INFO L93 Difference]: Finished difference Result 3928 states and 9826 transitions. [2021-07-13 19:07:13,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:07:13,636 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:07:13,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:13,640 INFO L225 Difference]: With dead ends: 3928 [2021-07-13 19:07:13,640 INFO L226 Difference]: Without dead ends: 3783 [2021-07-13 19:07:13,640 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 2597.8ms TimeCoverageRelationStatistics Valid=580, Invalid=2960, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:07:13,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3783 states. [2021-07-13 19:07:13,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3783 to 2845. [2021-07-13 19:07:13,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2845 states, 2844 states have (on average 2.55239099859353) internal successors, (7259), 2844 states have internal predecessors, (7259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:13,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2845 states to 2845 states and 7259 transitions. [2021-07-13 19:07:13,672 INFO L78 Accepts]: Start accepts. Automaton has 2845 states and 7259 transitions. Word has length 119 [2021-07-13 19:07:13,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:13,672 INFO L482 AbstractCegarLoop]: Abstraction has 2845 states and 7259 transitions. [2021-07-13 19:07:13,672 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:13,672 INFO L276 IsEmpty]: Start isEmpty. Operand 2845 states and 7259 transitions. [2021-07-13 19:07:13,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:07:13,674 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:13,674 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:13,675 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2021-07-13 19:07:13,675 INFO L430 AbstractCegarLoop]: === Iteration 240 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:13,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:13,675 INFO L82 PathProgramCache]: Analyzing trace with hash 222196871, now seen corresponding path program 187 times [2021-07-13 19:07:13,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:13,675 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80777470] [2021-07-13 19:07:13,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:14,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:14,408 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:14,408 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80777470] [2021-07-13 19:07:14,408 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80777470] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:14,409 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:14,409 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:07:14,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428204779] [2021-07-13 19:07:14,409 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:07:14,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:14,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:07:14,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:07:14,409 INFO L87 Difference]: Start difference. First operand 2845 states and 7259 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:15,260 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-07-13 19:07:15,493 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-13 19:07:17,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:17,060 INFO L93 Difference]: Finished difference Result 4358 states and 10907 transitions. [2021-07-13 19:07:17,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-13 19:07:17,061 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:07:17,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:17,065 INFO L225 Difference]: With dead ends: 4358 [2021-07-13 19:07:17,065 INFO L226 Difference]: Without dead ends: 3576 [2021-07-13 19:07:17,066 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 757 ImplicationChecksByTransitivity, 2421.9ms TimeCoverageRelationStatistics Valid=677, Invalid=3355, Unknown=0, NotChecked=0, Total=4032 [2021-07-13 19:07:17,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3576 states. [2021-07-13 19:07:17,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3576 to 2581. [2021-07-13 19:07:17,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2581 states, 2580 states have (on average 2.519767441860465) internal successors, (6501), 2580 states have internal predecessors, (6501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:17,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2581 states to 2581 states and 6501 transitions. [2021-07-13 19:07:17,094 INFO L78 Accepts]: Start accepts. Automaton has 2581 states and 6501 transitions. Word has length 119 [2021-07-13 19:07:17,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:17,094 INFO L482 AbstractCegarLoop]: Abstraction has 2581 states and 6501 transitions. [2021-07-13 19:07:17,095 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:17,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2581 states and 6501 transitions. [2021-07-13 19:07:17,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:07:17,097 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:17,097 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:17,097 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2021-07-13 19:07:17,097 INFO L430 AbstractCegarLoop]: === Iteration 241 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:17,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:17,097 INFO L82 PathProgramCache]: Analyzing trace with hash -221867791, now seen corresponding path program 188 times [2021-07-13 19:07:17,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:17,098 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916675397] [2021-07-13 19:07:17,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:17,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:17,603 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:17,603 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916675397] [2021-07-13 19:07:17,603 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916675397] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:17,603 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:17,603 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:07:17,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643627262] [2021-07-13 19:07:17,604 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:07:17,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:17,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:07:17,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:07:17,604 INFO L87 Difference]: Start difference. First operand 2581 states and 6501 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:19,035 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-07-13 19:07:20,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:20,547 INFO L93 Difference]: Finished difference Result 3140 states and 7756 transitions. [2021-07-13 19:07:20,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:07:20,547 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:07:20,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:20,550 INFO L225 Difference]: With dead ends: 3140 [2021-07-13 19:07:20,550 INFO L226 Difference]: Without dead ends: 2933 [2021-07-13 19:07:20,551 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 662 ImplicationChecksByTransitivity, 2329.2ms TimeCoverageRelationStatistics Valid=629, Invalid=2911, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:07:20,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2021-07-13 19:07:20,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 2521. [2021-07-13 19:07:20,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2521 states, 2520 states have (on average 2.5337301587301586) internal successors, (6385), 2520 states have internal predecessors, (6385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:20,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 6385 transitions. [2021-07-13 19:07:20,577 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 6385 transitions. Word has length 119 [2021-07-13 19:07:20,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:20,577 INFO L482 AbstractCegarLoop]: Abstraction has 2521 states and 6385 transitions. [2021-07-13 19:07:20,577 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:20,577 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 6385 transitions. [2021-07-13 19:07:20,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:07:20,579 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:20,579 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:20,580 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2021-07-13 19:07:20,580 INFO L430 AbstractCegarLoop]: === Iteration 242 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:20,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:20,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1021977465, now seen corresponding path program 189 times [2021-07-13 19:07:20,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:20,580 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294394839] [2021-07-13 19:07:20,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:20,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:20,830 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:20,831 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294394839] [2021-07-13 19:07:20,831 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294394839] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:20,831 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:20,831 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 19:07:20,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914151530] [2021-07-13 19:07:20,831 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 19:07:20,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:20,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 19:07:20,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-07-13 19:07:20,831 INFO L87 Difference]: Start difference. First operand 2521 states and 6385 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:21,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:21,289 INFO L93 Difference]: Finished difference Result 3195 states and 7798 transitions. [2021-07-13 19:07:21,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 19:07:21,289 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:07:21,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:21,293 INFO L225 Difference]: With dead ends: 3195 [2021-07-13 19:07:21,293 INFO L226 Difference]: Without dead ends: 3139 [2021-07-13 19:07:21,293 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 439.3ms TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2021-07-13 19:07:21,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3139 states. [2021-07-13 19:07:21,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3139 to 2633. [2021-07-13 19:07:21,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2633 states, 2632 states have (on average 2.526595744680851) internal successors, (6650), 2632 states have internal predecessors, (6650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:21,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2633 states to 2633 states and 6650 transitions. [2021-07-13 19:07:21,321 INFO L78 Accepts]: Start accepts. Automaton has 2633 states and 6650 transitions. Word has length 119 [2021-07-13 19:07:21,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:21,321 INFO L482 AbstractCegarLoop]: Abstraction has 2633 states and 6650 transitions. [2021-07-13 19:07:21,321 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:21,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2633 states and 6650 transitions. [2021-07-13 19:07:21,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:07:21,324 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:21,324 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:21,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2021-07-13 19:07:21,324 INFO L430 AbstractCegarLoop]: === Iteration 243 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:21,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:21,324 INFO L82 PathProgramCache]: Analyzing trace with hash -803902033, now seen corresponding path program 190 times [2021-07-13 19:07:21,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:21,324 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553329986] [2021-07-13 19:07:21,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:21,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:21,940 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:21,940 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553329986] [2021-07-13 19:07:21,940 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553329986] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:21,940 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:21,940 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:07:21,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468997199] [2021-07-13 19:07:21,940 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:07:21,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:21,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:07:21,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:07:21,941 INFO L87 Difference]: Start difference. First operand 2633 states and 6650 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:24,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:24,712 INFO L93 Difference]: Finished difference Result 3042 states and 7483 transitions. [2021-07-13 19:07:24,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 19:07:24,712 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:07:24,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:24,716 INFO L225 Difference]: With dead ends: 3042 [2021-07-13 19:07:24,716 INFO L226 Difference]: Without dead ends: 2889 [2021-07-13 19:07:24,717 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 2417.9ms TimeCoverageRelationStatistics Valid=605, Invalid=2817, Unknown=0, NotChecked=0, Total=3422 [2021-07-13 19:07:24,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2889 states. [2021-07-13 19:07:24,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2889 to 2673. [2021-07-13 19:07:24,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2673 states, 2672 states have (on average 2.5232035928143715) internal successors, (6742), 2672 states have internal predecessors, (6742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:24,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2673 states to 2673 states and 6742 transitions. [2021-07-13 19:07:24,744 INFO L78 Accepts]: Start accepts. Automaton has 2673 states and 6742 transitions. Word has length 119 [2021-07-13 19:07:24,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:24,744 INFO L482 AbstractCegarLoop]: Abstraction has 2673 states and 6742 transitions. [2021-07-13 19:07:24,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:24,744 INFO L276 IsEmpty]: Start isEmpty. Operand 2673 states and 6742 transitions. [2021-07-13 19:07:24,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:07:24,747 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:24,747 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:24,747 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2021-07-13 19:07:24,747 INFO L430 AbstractCegarLoop]: === Iteration 244 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:24,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:24,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1318576291, now seen corresponding path program 191 times [2021-07-13 19:07:24,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:24,747 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553185499] [2021-07-13 19:07:24,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:25,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:25,357 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:25,357 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553185499] [2021-07-13 19:07:25,357 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553185499] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:25,357 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:25,358 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:07:25,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179999793] [2021-07-13 19:07:25,358 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:07:25,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:25,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:07:25,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:07:25,358 INFO L87 Difference]: Start difference. First operand 2673 states and 6742 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:28,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:28,522 INFO L93 Difference]: Finished difference Result 3084 states and 7570 transitions. [2021-07-13 19:07:28,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:07:28,522 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:07:28,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:28,526 INFO L225 Difference]: With dead ends: 3084 [2021-07-13 19:07:28,526 INFO L226 Difference]: Without dead ends: 2925 [2021-07-13 19:07:28,526 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 2715.5ms TimeCoverageRelationStatistics Valid=615, Invalid=2925, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:07:28,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2925 states. [2021-07-13 19:07:28,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2925 to 2677. [2021-07-13 19:07:28,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2676 states have (on average 2.521674140508221) internal successors, (6748), 2676 states have internal predecessors, (6748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:28,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 6748 transitions. [2021-07-13 19:07:28,553 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 6748 transitions. Word has length 119 [2021-07-13 19:07:28,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:28,553 INFO L482 AbstractCegarLoop]: Abstraction has 2677 states and 6748 transitions. [2021-07-13 19:07:28,553 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:28,553 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 6748 transitions. [2021-07-13 19:07:28,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:07:28,555 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:28,555 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:28,555 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2021-07-13 19:07:28,555 INFO L430 AbstractCegarLoop]: === Iteration 245 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:28,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:28,556 INFO L82 PathProgramCache]: Analyzing trace with hash 904807895, now seen corresponding path program 192 times [2021-07-13 19:07:28,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:28,556 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817261486] [2021-07-13 19:07:28,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:29,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:29,198 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:29,198 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817261486] [2021-07-13 19:07:29,198 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817261486] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:29,198 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:29,198 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:07:29,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290642239] [2021-07-13 19:07:29,198 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:07:29,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:29,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:07:29,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:07:29,199 INFO L87 Difference]: Start difference. First operand 2677 states and 6748 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:30,514 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-07-13 19:07:32,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:32,146 INFO L93 Difference]: Finished difference Result 3060 states and 7511 transitions. [2021-07-13 19:07:32,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:07:32,146 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:07:32,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:32,150 INFO L225 Difference]: With dead ends: 3060 [2021-07-13 19:07:32,150 INFO L226 Difference]: Without dead ends: 2905 [2021-07-13 19:07:32,151 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 2606.7ms TimeCoverageRelationStatistics Valid=632, Invalid=2908, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:07:32,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2905 states. [2021-07-13 19:07:32,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2905 to 2669. [2021-07-13 19:07:32,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2669 states, 2668 states have (on average 2.522863568215892) internal successors, (6731), 2668 states have internal predecessors, (6731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:32,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 6731 transitions. [2021-07-13 19:07:32,178 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 6731 transitions. Word has length 119 [2021-07-13 19:07:32,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:32,179 INFO L482 AbstractCegarLoop]: Abstraction has 2669 states and 6731 transitions. [2021-07-13 19:07:32,179 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:32,179 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 6731 transitions. [2021-07-13 19:07:32,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:07:32,181 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:32,181 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:32,181 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2021-07-13 19:07:32,181 INFO L430 AbstractCegarLoop]: === Iteration 246 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:32,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:32,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1137995679, now seen corresponding path program 193 times [2021-07-13 19:07:32,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:32,182 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390939836] [2021-07-13 19:07:32,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:32,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:32,718 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:32,718 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390939836] [2021-07-13 19:07:32,718 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390939836] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:32,718 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:32,718 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:07:32,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267852642] [2021-07-13 19:07:32,718 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:07:32,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:32,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:07:32,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:07:32,719 INFO L87 Difference]: Start difference. First operand 2669 states and 6731 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:35,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:35,668 INFO L93 Difference]: Finished difference Result 4507 states and 11392 transitions. [2021-07-13 19:07:35,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-07-13 19:07:35,668 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:07:35,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:35,675 INFO L225 Difference]: With dead ends: 4507 [2021-07-13 19:07:35,675 INFO L226 Difference]: Without dead ends: 4362 [2021-07-13 19:07:35,675 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 2474.7ms TimeCoverageRelationStatistics Valid=553, Invalid=2753, Unknown=0, NotChecked=0, Total=3306 [2021-07-13 19:07:35,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4362 states. [2021-07-13 19:07:35,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4362 to 3005. [2021-07-13 19:07:35,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3005 states, 3004 states have (on average 2.5409454061251666) internal successors, (7633), 3004 states have internal predecessors, (7633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:35,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3005 states to 3005 states and 7633 transitions. [2021-07-13 19:07:35,722 INFO L78 Accepts]: Start accepts. Automaton has 3005 states and 7633 transitions. Word has length 119 [2021-07-13 19:07:35,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:35,722 INFO L482 AbstractCegarLoop]: Abstraction has 3005 states and 7633 transitions. [2021-07-13 19:07:35,722 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:35,722 INFO L276 IsEmpty]: Start isEmpty. Operand 3005 states and 7633 transitions. [2021-07-13 19:07:35,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:07:35,725 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:35,725 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:35,725 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2021-07-13 19:07:35,725 INFO L430 AbstractCegarLoop]: === Iteration 247 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:35,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:35,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1612701981, now seen corresponding path program 194 times [2021-07-13 19:07:35,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:35,726 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076918452] [2021-07-13 19:07:35,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:36,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:36,359 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:36,359 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076918452] [2021-07-13 19:07:36,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076918452] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:36,360 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:36,360 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:07:36,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59329757] [2021-07-13 19:07:36,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:07:36,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:36,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:07:36,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:07:36,360 INFO L87 Difference]: Start difference. First operand 3005 states and 7633 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:39,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:39,886 INFO L93 Difference]: Finished difference Result 4962 states and 12452 transitions. [2021-07-13 19:07:39,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-07-13 19:07:39,886 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:07:39,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:39,892 INFO L225 Difference]: With dead ends: 4962 [2021-07-13 19:07:39,892 INFO L226 Difference]: Without dead ends: 4167 [2021-07-13 19:07:39,892 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 3029.7ms TimeCoverageRelationStatistics Valid=717, Invalid=3573, Unknown=0, NotChecked=0, Total=4290 [2021-07-13 19:07:39,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4167 states. [2021-07-13 19:07:39,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4167 to 2741. [2021-07-13 19:07:39,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2741 states, 2740 states have (on average 2.5003649635036496) internal successors, (6851), 2740 states have internal predecessors, (6851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:39,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2741 states to 2741 states and 6851 transitions. [2021-07-13 19:07:39,926 INFO L78 Accepts]: Start accepts. Automaton has 2741 states and 6851 transitions. Word has length 119 [2021-07-13 19:07:39,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:39,926 INFO L482 AbstractCegarLoop]: Abstraction has 2741 states and 6851 transitions. [2021-07-13 19:07:39,926 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:39,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2741 states and 6851 transitions. [2021-07-13 19:07:39,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:07:39,929 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:39,929 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:39,929 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2021-07-13 19:07:39,929 INFO L430 AbstractCegarLoop]: === Iteration 248 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:39,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:39,929 INFO L82 PathProgramCache]: Analyzing trace with hash -377724415, now seen corresponding path program 195 times [2021-07-13 19:07:39,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:39,930 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448593365] [2021-07-13 19:07:39,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:40,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:40,512 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:40,512 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448593365] [2021-07-13 19:07:40,512 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448593365] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:40,512 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:40,512 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:07:40,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218443523] [2021-07-13 19:07:40,512 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:07:40,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:40,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:07:40,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:07:40,513 INFO L87 Difference]: Start difference. First operand 2741 states and 6851 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:43,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:43,535 INFO L93 Difference]: Finished difference Result 4221 states and 10462 transitions. [2021-07-13 19:07:43,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-13 19:07:43,535 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:07:43,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:43,540 INFO L225 Difference]: With dead ends: 4221 [2021-07-13 19:07:43,540 INFO L226 Difference]: Without dead ends: 3978 [2021-07-13 19:07:43,541 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 2608.0ms TimeCoverageRelationStatistics Valid=602, Invalid=3058, Unknown=0, NotChecked=0, Total=3660 [2021-07-13 19:07:43,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3978 states. [2021-07-13 19:07:43,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3978 to 2657. [2021-07-13 19:07:43,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2657 states, 2656 states have (on average 2.511671686746988) internal successors, (6671), 2656 states have internal predecessors, (6671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:43,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2657 states to 2657 states and 6671 transitions. [2021-07-13 19:07:43,574 INFO L78 Accepts]: Start accepts. Automaton has 2657 states and 6671 transitions. Word has length 119 [2021-07-13 19:07:43,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:43,574 INFO L482 AbstractCegarLoop]: Abstraction has 2657 states and 6671 transitions. [2021-07-13 19:07:43,574 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:43,574 INFO L276 IsEmpty]: Start isEmpty. Operand 2657 states and 6671 transitions. [2021-07-13 19:07:43,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:07:43,577 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:43,577 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:43,577 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2021-07-13 19:07:43,577 INFO L430 AbstractCegarLoop]: === Iteration 249 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:43,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:43,577 INFO L82 PathProgramCache]: Analyzing trace with hash 662534293, now seen corresponding path program 196 times [2021-07-13 19:07:43,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:43,577 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231094323] [2021-07-13 19:07:43,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:44,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:44,089 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:44,089 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231094323] [2021-07-13 19:07:44,089 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231094323] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:44,089 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:44,089 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:07:44,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649928655] [2021-07-13 19:07:44,090 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:07:44,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:44,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:07:44,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:07:44,090 INFO L87 Difference]: Start difference. First operand 2657 states and 6671 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:47,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:47,049 INFO L93 Difference]: Finished difference Result 4333 states and 10807 transitions. [2021-07-13 19:07:47,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-13 19:07:47,050 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:07:47,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:47,056 INFO L225 Difference]: With dead ends: 4333 [2021-07-13 19:07:47,056 INFO L226 Difference]: Without dead ends: 4188 [2021-07-13 19:07:47,056 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 2363.1ms TimeCoverageRelationStatistics Valid=607, Invalid=3053, Unknown=0, NotChecked=0, Total=3660 [2021-07-13 19:07:47,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4188 states. [2021-07-13 19:07:47,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4188 to 2945. [2021-07-13 19:07:47,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2945 states, 2944 states have (on average 2.5356657608695654) internal successors, (7465), 2944 states have internal predecessors, (7465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:47,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2945 states to 2945 states and 7465 transitions. [2021-07-13 19:07:47,095 INFO L78 Accepts]: Start accepts. Automaton has 2945 states and 7465 transitions. Word has length 119 [2021-07-13 19:07:47,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:47,095 INFO L482 AbstractCegarLoop]: Abstraction has 2945 states and 7465 transitions. [2021-07-13 19:07:47,095 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:47,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2945 states and 7465 transitions. [2021-07-13 19:07:47,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:07:47,098 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:47,098 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:47,098 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2021-07-13 19:07:47,098 INFO L430 AbstractCegarLoop]: === Iteration 250 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:47,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:47,099 INFO L82 PathProgramCache]: Analyzing trace with hash 187827991, now seen corresponding path program 197 times [2021-07-13 19:07:47,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:47,099 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545897247] [2021-07-13 19:07:47,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:47,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:47,740 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:47,740 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545897247] [2021-07-13 19:07:47,740 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545897247] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:47,740 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:47,740 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:07:47,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290638256] [2021-07-13 19:07:47,740 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:07:47,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:47,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:07:47,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:07:47,741 INFO L87 Difference]: Start difference. First operand 2945 states and 7465 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:48,420 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-07-13 19:07:48,782 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-13 19:07:51,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:51,335 INFO L93 Difference]: Finished difference Result 4763 states and 11888 transitions. [2021-07-13 19:07:51,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-13 19:07:51,336 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:07:51,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:51,341 INFO L225 Difference]: With dead ends: 4763 [2021-07-13 19:07:51,341 INFO L226 Difference]: Without dead ends: 3981 [2021-07-13 19:07:51,342 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 787 ImplicationChecksByTransitivity, 3097.0ms TimeCoverageRelationStatistics Valid=708, Invalid=3452, Unknown=0, NotChecked=0, Total=4160 [2021-07-13 19:07:51,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3981 states. [2021-07-13 19:07:51,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3981 to 2681. [2021-07-13 19:07:51,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2681 states, 2680 states have (on average 2.5026119402985074) internal successors, (6707), 2680 states have internal predecessors, (6707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:51,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2681 states to 2681 states and 6707 transitions. [2021-07-13 19:07:51,376 INFO L78 Accepts]: Start accepts. Automaton has 2681 states and 6707 transitions. Word has length 119 [2021-07-13 19:07:51,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:51,376 INFO L482 AbstractCegarLoop]: Abstraction has 2681 states and 6707 transitions. [2021-07-13 19:07:51,376 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:51,376 INFO L276 IsEmpty]: Start isEmpty. Operand 2681 states and 6707 transitions. [2021-07-13 19:07:51,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:07:51,378 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:51,379 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:51,379 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2021-07-13 19:07:51,379 INFO L430 AbstractCegarLoop]: === Iteration 251 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:51,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:51,379 INFO L82 PathProgramCache]: Analyzing trace with hash -256236671, now seen corresponding path program 198 times [2021-07-13 19:07:51,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:51,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683087846] [2021-07-13 19:07:51,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:52,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:52,060 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:52,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683087846] [2021-07-13 19:07:52,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683087846] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:52,061 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:52,061 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:07:52,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138406966] [2021-07-13 19:07:52,061 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:07:52,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:52,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:07:52,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:07:52,061 INFO L87 Difference]: Start difference. First operand 2681 states and 6707 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:53,165 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-13 19:07:53,709 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-07-13 19:07:55,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:55,346 INFO L93 Difference]: Finished difference Result 3521 states and 8681 transitions. [2021-07-13 19:07:55,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-13 19:07:55,346 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:07:55,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:55,351 INFO L225 Difference]: With dead ends: 3521 [2021-07-13 19:07:55,351 INFO L226 Difference]: Without dead ends: 3362 [2021-07-13 19:07:55,351 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 2928.9ms TimeCoverageRelationStatistics Valid=659, Invalid=3001, Unknown=0, NotChecked=0, Total=3660 [2021-07-13 19:07:55,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3362 states. [2021-07-13 19:07:55,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3362 to 2621. [2021-07-13 19:07:55,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2621 states, 2620 states have (on average 2.51412213740458) internal successors, (6587), 2620 states have internal predecessors, (6587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:55,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2621 states to 2621 states and 6587 transitions. [2021-07-13 19:07:55,383 INFO L78 Accepts]: Start accepts. Automaton has 2621 states and 6587 transitions. Word has length 119 [2021-07-13 19:07:55,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:55,383 INFO L482 AbstractCegarLoop]: Abstraction has 2621 states and 6587 transitions. [2021-07-13 19:07:55,383 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:55,383 INFO L276 IsEmpty]: Start isEmpty. Operand 2621 states and 6587 transitions. [2021-07-13 19:07:55,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:07:55,385 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:55,386 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:55,386 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-07-13 19:07:55,386 INFO L430 AbstractCegarLoop]: === Iteration 252 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:55,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:55,386 INFO L82 PathProgramCache]: Analyzing trace with hash 1205146773, now seen corresponding path program 199 times [2021-07-13 19:07:55,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:55,386 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580777980] [2021-07-13 19:07:55,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:56,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:56,016 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:56,016 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580777980] [2021-07-13 19:07:56,016 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580777980] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:56,016 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:56,016 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:07:56,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522266395] [2021-07-13 19:07:56,016 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:07:56,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:56,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:07:56,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:07:56,017 INFO L87 Difference]: Start difference. First operand 2621 states and 6587 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:59,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:07:59,023 INFO L93 Difference]: Finished difference Result 3281 states and 8068 transitions. [2021-07-13 19:07:59,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-13 19:07:59,024 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:07:59,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:07:59,028 INFO L225 Difference]: With dead ends: 3281 [2021-07-13 19:07:59,028 INFO L226 Difference]: Without dead ends: 3122 [2021-07-13 19:07:59,029 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 2684.4ms TimeCoverageRelationStatistics Valid=644, Invalid=3016, Unknown=0, NotChecked=0, Total=3660 [2021-07-13 19:07:59,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3122 states. [2021-07-13 19:07:59,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3122 to 2625. [2021-07-13 19:07:59,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2625 states, 2624 states have (on average 2.5125762195121952) internal successors, (6593), 2624 states have internal predecessors, (6593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:59,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2625 states to 2625 states and 6593 transitions. [2021-07-13 19:07:59,066 INFO L78 Accepts]: Start accepts. Automaton has 2625 states and 6593 transitions. Word has length 119 [2021-07-13 19:07:59,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:07:59,066 INFO L482 AbstractCegarLoop]: Abstraction has 2625 states and 6593 transitions. [2021-07-13 19:07:59,066 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:07:59,066 INFO L276 IsEmpty]: Start isEmpty. Operand 2625 states and 6593 transitions. [2021-07-13 19:07:59,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:07:59,069 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:07:59,069 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:07:59,069 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2021-07-13 19:07:59,069 INFO L430 AbstractCegarLoop]: === Iteration 253 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:07:59,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:07:59,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1263228385, now seen corresponding path program 200 times [2021-07-13 19:07:59,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:07:59,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274800667] [2021-07-13 19:07:59,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:07:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:07:59,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:07:59,692 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:07:59,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274800667] [2021-07-13 19:07:59,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274800667] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:07:59,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:07:59,693 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:07:59,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262112619] [2021-07-13 19:07:59,693 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:07:59,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:07:59,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:07:59,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:07:59,693 INFO L87 Difference]: Start difference. First operand 2625 states and 6593 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:02,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:08:02,723 INFO L93 Difference]: Finished difference Result 3255 states and 8004 transitions. [2021-07-13 19:08:02,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-13 19:08:02,723 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:08:02,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:08:02,727 INFO L225 Difference]: With dead ends: 3255 [2021-07-13 19:08:02,727 INFO L226 Difference]: Without dead ends: 3058 [2021-07-13 19:08:02,728 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 2640.3ms TimeCoverageRelationStatistics Valid=659, Invalid=3001, Unknown=0, NotChecked=0, Total=3660 [2021-07-13 19:08:02,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3058 states. [2021-07-13 19:08:02,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3058 to 2573. [2021-07-13 19:08:02,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2573 states, 2572 states have (on average 2.5248833592534994) internal successors, (6494), 2572 states have internal predecessors, (6494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:02,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 6494 transitions. [2021-07-13 19:08:02,763 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 6494 transitions. Word has length 119 [2021-07-13 19:08:02,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:08:02,763 INFO L482 AbstractCegarLoop]: Abstraction has 2573 states and 6494 transitions. [2021-07-13 19:08:02,763 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:02,763 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 6494 transitions. [2021-07-13 19:08:02,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:08:02,766 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:08:02,766 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:08:02,766 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2021-07-13 19:08:02,767 INFO L430 AbstractCegarLoop]: === Iteration 254 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:08:02,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:08:02,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1732020677, now seen corresponding path program 201 times [2021-07-13 19:08:02,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:08:02,767 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022812154] [2021-07-13 19:08:02,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:08:02,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:08:03,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:08:03,419 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:08:03,419 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022812154] [2021-07-13 19:08:03,419 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022812154] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:08:03,419 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:08:03,419 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:08:03,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160129788] [2021-07-13 19:08:03,419 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:08:03,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:08:03,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:08:03,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:08:03,420 INFO L87 Difference]: Start difference. First operand 2573 states and 6494 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:04,671 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-07-13 19:08:04,879 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-07-13 19:08:06,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:08:06,410 INFO L93 Difference]: Finished difference Result 2942 states and 7221 transitions. [2021-07-13 19:08:06,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 19:08:06,410 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:08:06,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:08:06,414 INFO L225 Difference]: With dead ends: 2942 [2021-07-13 19:08:06,414 INFO L226 Difference]: Without dead ends: 2752 [2021-07-13 19:08:06,415 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 2627.3ms TimeCoverageRelationStatistics Valid=602, Invalid=2820, Unknown=0, NotChecked=0, Total=3422 [2021-07-13 19:08:06,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2021-07-13 19:08:06,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2533. [2021-07-13 19:08:06,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2533 states, 2532 states have (on average 2.529225908372828) internal successors, (6404), 2532 states have internal predecessors, (6404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:06,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2533 states to 2533 states and 6404 transitions. [2021-07-13 19:08:06,441 INFO L78 Accepts]: Start accepts. Automaton has 2533 states and 6404 transitions. Word has length 119 [2021-07-13 19:08:06,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:08:06,441 INFO L482 AbstractCegarLoop]: Abstraction has 2533 states and 6404 transitions. [2021-07-13 19:08:06,441 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:06,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2533 states and 6404 transitions. [2021-07-13 19:08:06,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:08:06,443 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:08:06,443 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:08:06,443 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2021-07-13 19:08:06,443 INFO L430 AbstractCegarLoop]: === Iteration 255 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:08:06,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:08:06,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1787237757, now seen corresponding path program 202 times [2021-07-13 19:08:06,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:08:06,444 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682105769] [2021-07-13 19:08:06,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:08:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:08:06,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:08:06,699 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:08:06,699 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682105769] [2021-07-13 19:08:06,699 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682105769] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:08:06,699 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:08:06,699 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-07-13 19:08:06,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088569030] [2021-07-13 19:08:06,699 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-13 19:08:06,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:08:06,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-13 19:08:06,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-07-13 19:08:06,700 INFO L87 Difference]: Start difference. First operand 2533 states and 6404 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:07,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:08:07,169 INFO L93 Difference]: Finished difference Result 1867 states and 4487 transitions. [2021-07-13 19:08:07,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 19:08:07,169 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:08:07,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:08:07,171 INFO L225 Difference]: With dead ends: 1867 [2021-07-13 19:08:07,171 INFO L226 Difference]: Without dead ends: 1755 [2021-07-13 19:08:07,172 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 462.1ms TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2021-07-13 19:08:07,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2021-07-13 19:08:07,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1711. [2021-07-13 19:08:07,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1711 states, 1710 states have (on average 2.4076023391812864) internal successors, (4117), 1710 states have internal predecessors, (4117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:07,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 4117 transitions. [2021-07-13 19:08:07,188 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 4117 transitions. Word has length 119 [2021-07-13 19:08:07,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:08:07,188 INFO L482 AbstractCegarLoop]: Abstraction has 1711 states and 4117 transitions. [2021-07-13 19:08:07,188 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:07,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 4117 transitions. [2021-07-13 19:08:07,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:08:07,190 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:08:07,190 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:08:07,190 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2021-07-13 19:08:07,190 INFO L430 AbstractCegarLoop]: === Iteration 256 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:08:07,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:08:07,190 INFO L82 PathProgramCache]: Analyzing trace with hash 348133955, now seen corresponding path program 203 times [2021-07-13 19:08:07,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:08:07,190 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333439979] [2021-07-13 19:08:07,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:08:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:08:07,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:08:07,813 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:08:07,813 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333439979] [2021-07-13 19:08:07,813 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333439979] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:08:07,813 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:08:07,813 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:08:07,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013132657] [2021-07-13 19:08:07,813 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:08:07,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:08:07,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:08:07,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:08:07,814 INFO L87 Difference]: Start difference. First operand 1711 states and 4117 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:08,945 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-13 19:08:09,181 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-07-13 19:08:10,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:08:10,056 INFO L93 Difference]: Finished difference Result 1850 states and 4368 transitions. [2021-07-13 19:08:10,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:08:10,056 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:08:10,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:08:10,059 INFO L225 Difference]: With dead ends: 1850 [2021-07-13 19:08:10,059 INFO L226 Difference]: Without dead ends: 1747 [2021-07-13 19:08:10,059 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 2017.2ms TimeCoverageRelationStatistics Valid=451, Invalid=2201, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:08:10,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2021-07-13 19:08:10,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 1729. [2021-07-13 19:08:10,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1729 states, 1728 states have (on average 2.3993055555555554) internal successors, (4146), 1728 states have internal predecessors, (4146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:10,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1729 states to 1729 states and 4146 transitions. [2021-07-13 19:08:10,075 INFO L78 Accepts]: Start accepts. Automaton has 1729 states and 4146 transitions. Word has length 119 [2021-07-13 19:08:10,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:08:10,076 INFO L482 AbstractCegarLoop]: Abstraction has 1729 states and 4146 transitions. [2021-07-13 19:08:10,076 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:10,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1729 states and 4146 transitions. [2021-07-13 19:08:10,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:08:10,078 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:08:10,078 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:08:10,078 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2021-07-13 19:08:10,078 INFO L430 AbstractCegarLoop]: === Iteration 257 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:08:10,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:08:10,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1824355017, now seen corresponding path program 204 times [2021-07-13 19:08:10,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:08:10,078 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339152508] [2021-07-13 19:08:10,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:08:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:08:10,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:08:10,727 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:08:10,727 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339152508] [2021-07-13 19:08:10,727 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339152508] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:08:10,728 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:08:10,728 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:08:10,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8474301] [2021-07-13 19:08:10,728 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:08:10,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:08:10,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:08:10,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:08:10,728 INFO L87 Difference]: Start difference. First operand 1729 states and 4146 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:12,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:08:12,934 INFO L93 Difference]: Finished difference Result 1886 states and 4444 transitions. [2021-07-13 19:08:12,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 19:08:12,935 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:08:12,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:08:12,937 INFO L225 Difference]: With dead ends: 1886 [2021-07-13 19:08:12,937 INFO L226 Difference]: Without dead ends: 1781 [2021-07-13 19:08:12,938 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 2035.4ms TimeCoverageRelationStatistics Valid=456, Invalid=2300, Unknown=0, NotChecked=0, Total=2756 [2021-07-13 19:08:12,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2021-07-13 19:08:12,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1731. [2021-07-13 19:08:12,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1730 states have (on average 2.3982658959537573) internal successors, (4149), 1730 states have internal predecessors, (4149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:12,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 4149 transitions. [2021-07-13 19:08:12,958 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 4149 transitions. Word has length 119 [2021-07-13 19:08:12,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:08:12,958 INFO L482 AbstractCegarLoop]: Abstraction has 1731 states and 4149 transitions. [2021-07-13 19:08:12,958 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:12,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 4149 transitions. [2021-07-13 19:08:12,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:08:12,960 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:08:12,960 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:08:12,960 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2021-07-13 19:08:12,960 INFO L430 AbstractCegarLoop]: === Iteration 258 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:08:12,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:08:12,960 INFO L82 PathProgramCache]: Analyzing trace with hash 2056843883, now seen corresponding path program 205 times [2021-07-13 19:08:12,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:08:12,961 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969047566] [2021-07-13 19:08:12,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:08:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:08:13,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:08:13,556 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:08:13,556 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969047566] [2021-07-13 19:08:13,556 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969047566] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:08:13,556 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:08:13,557 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:08:13,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056732809] [2021-07-13 19:08:13,557 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:08:13,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:08:13,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:08:13,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:08:13,557 INFO L87 Difference]: Start difference. First operand 1731 states and 4149 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:14,888 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-07-13 19:08:15,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:08:15,745 INFO L93 Difference]: Finished difference Result 1842 states and 4348 transitions. [2021-07-13 19:08:15,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:08:15,745 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:08:15,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:08:15,748 INFO L225 Difference]: With dead ends: 1842 [2021-07-13 19:08:15,748 INFO L226 Difference]: Without dead ends: 1737 [2021-07-13 19:08:15,748 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 2013.0ms TimeCoverageRelationStatistics Valid=452, Invalid=2200, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:08:15,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1737 states. [2021-07-13 19:08:15,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1737 to 1723. [2021-07-13 19:08:15,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1722 states have (on average 2.397793263646922) internal successors, (4129), 1722 states have internal predecessors, (4129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:15,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 4129 transitions. [2021-07-13 19:08:15,764 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 4129 transitions. Word has length 119 [2021-07-13 19:08:15,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:08:15,764 INFO L482 AbstractCegarLoop]: Abstraction has 1723 states and 4129 transitions. [2021-07-13 19:08:15,764 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:15,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 4129 transitions. [2021-07-13 19:08:15,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:08:15,766 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:08:15,766 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:08:15,766 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-07-13 19:08:15,766 INFO L430 AbstractCegarLoop]: === Iteration 259 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:08:15,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:08:15,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1353455165, now seen corresponding path program 206 times [2021-07-13 19:08:15,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:08:15,766 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699887904] [2021-07-13 19:08:15,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:08:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:08:16,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:08:16,376 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:08:16,376 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699887904] [2021-07-13 19:08:16,376 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699887904] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:08:16,376 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:08:16,377 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:08:16,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979925602] [2021-07-13 19:08:16,377 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:08:16,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:08:16,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:08:16,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:08:16,377 INFO L87 Difference]: Start difference. First operand 1723 states and 4129 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:18,294 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2021-07-13 19:08:18,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:08:18,824 INFO L93 Difference]: Finished difference Result 1922 states and 4526 transitions. [2021-07-13 19:08:18,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 19:08:18,824 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:08:18,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:08:18,826 INFO L225 Difference]: With dead ends: 1922 [2021-07-13 19:08:18,826 INFO L226 Difference]: Without dead ends: 1787 [2021-07-13 19:08:18,827 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 2216.3ms TimeCoverageRelationStatistics Valid=468, Invalid=2394, Unknown=0, NotChecked=0, Total=2862 [2021-07-13 19:08:18,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1787 states. [2021-07-13 19:08:18,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1787 to 1729. [2021-07-13 19:08:18,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1729 states, 1728 states have (on average 2.394675925925926) internal successors, (4138), 1728 states have internal predecessors, (4138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:18,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1729 states to 1729 states and 4138 transitions. [2021-07-13 19:08:18,842 INFO L78 Accepts]: Start accepts. Automaton has 1729 states and 4138 transitions. Word has length 119 [2021-07-13 19:08:18,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:08:18,842 INFO L482 AbstractCegarLoop]: Abstraction has 1729 states and 4138 transitions. [2021-07-13 19:08:18,843 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:18,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1729 states and 4138 transitions. [2021-07-13 19:08:18,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:08:18,844 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:08:18,844 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:08:18,844 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2021-07-13 19:08:18,844 INFO L430 AbstractCegarLoop]: === Iteration 260 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:08:18,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:08:18,845 INFO L82 PathProgramCache]: Analyzing trace with hash 652802029, now seen corresponding path program 207 times [2021-07-13 19:08:18,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:08:18,845 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903372760] [2021-07-13 19:08:18,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:08:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:08:19,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:08:19,459 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:08:19,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903372760] [2021-07-13 19:08:19,459 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903372760] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:08:19,459 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:08:19,459 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:08:19,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002445141] [2021-07-13 19:08:19,459 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:08:19,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:08:19,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:08:19,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:08:19,460 INFO L87 Difference]: Start difference. First operand 1729 states and 4138 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:21,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:08:21,653 INFO L93 Difference]: Finished difference Result 1882 states and 4428 transitions. [2021-07-13 19:08:21,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 19:08:21,654 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:08:21,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:08:21,655 INFO L225 Difference]: With dead ends: 1882 [2021-07-13 19:08:21,656 INFO L226 Difference]: Without dead ends: 1777 [2021-07-13 19:08:21,656 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 2065.9ms TimeCoverageRelationStatistics Valid=458, Invalid=2298, Unknown=0, NotChecked=0, Total=2756 [2021-07-13 19:08:21,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1777 states. [2021-07-13 19:08:21,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1777 to 1731. [2021-07-13 19:08:21,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1730 states have (on average 2.3936416184971097) internal successors, (4141), 1730 states have internal predecessors, (4141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:21,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 4141 transitions. [2021-07-13 19:08:21,672 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 4141 transitions. Word has length 119 [2021-07-13 19:08:21,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:08:21,673 INFO L482 AbstractCegarLoop]: Abstraction has 1731 states and 4141 transitions. [2021-07-13 19:08:21,673 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:21,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 4141 transitions. [2021-07-13 19:08:21,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:08:21,674 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:08:21,674 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:08:21,675 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2021-07-13 19:08:21,675 INFO L430 AbstractCegarLoop]: === Iteration 261 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:08:21,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:08:21,675 INFO L82 PathProgramCache]: Analyzing trace with hash 239033633, now seen corresponding path program 208 times [2021-07-13 19:08:21,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:08:21,675 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465777754] [2021-07-13 19:08:21,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:08:21,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:08:22,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:08:22,144 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:08:22,144 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465777754] [2021-07-13 19:08:22,144 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465777754] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:08:22,144 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:08:22,144 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:08:22,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422140316] [2021-07-13 19:08:22,145 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:08:22,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:08:22,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:08:22,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:08:22,146 INFO L87 Difference]: Start difference. First operand 1731 states and 4141 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:23,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:08:23,826 INFO L93 Difference]: Finished difference Result 1838 states and 4332 transitions. [2021-07-13 19:08:23,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:08:23,827 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:08:23,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:08:23,829 INFO L225 Difference]: With dead ends: 1838 [2021-07-13 19:08:23,829 INFO L226 Difference]: Without dead ends: 1715 [2021-07-13 19:08:23,829 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 1548.3ms TimeCoverageRelationStatistics Valid=453, Invalid=2199, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:08:23,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2021-07-13 19:08:23,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1705. [2021-07-13 19:08:23,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1705 states, 1704 states have (on average 2.391431924882629) internal successors, (4075), 1704 states have internal predecessors, (4075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:23,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 4075 transitions. [2021-07-13 19:08:23,845 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 4075 transitions. Word has length 119 [2021-07-13 19:08:23,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:08:23,845 INFO L482 AbstractCegarLoop]: Abstraction has 1705 states and 4075 transitions. [2021-07-13 19:08:23,845 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:23,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 4075 transitions. [2021-07-13 19:08:23,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:08:23,847 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:08:23,847 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:08:23,847 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2021-07-13 19:08:23,847 INFO L430 AbstractCegarLoop]: === Iteration 262 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:08:23,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:08:23,847 INFO L82 PathProgramCache]: Analyzing trace with hash 852774503, now seen corresponding path program 209 times [2021-07-13 19:08:23,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:08:23,847 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19737355] [2021-07-13 19:08:23,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:08:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:08:24,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:08:24,452 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:08:24,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19737355] [2021-07-13 19:08:24,452 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19737355] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:08:24,452 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:08:24,452 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:08:24,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864982910] [2021-07-13 19:08:24,452 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:08:24,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:08:24,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:08:24,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:08:24,453 INFO L87 Difference]: Start difference. First operand 1705 states and 4075 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:26,631 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-07-13 19:08:27,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:08:27,223 INFO L93 Difference]: Finished difference Result 2164 states and 5161 transitions. [2021-07-13 19:08:27,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 19:08:27,223 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:08:27,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:08:27,226 INFO L225 Difference]: With dead ends: 2164 [2021-07-13 19:08:27,226 INFO L226 Difference]: Without dead ends: 2069 [2021-07-13 19:08:27,227 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 2379.2ms TimeCoverageRelationStatistics Valid=484, Invalid=2486, Unknown=0, NotChecked=0, Total=2970 [2021-07-13 19:08:27,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2069 states. [2021-07-13 19:08:27,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2069 to 1933. [2021-07-13 19:08:27,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1933 states, 1932 states have (on average 2.4125258799171845) internal successors, (4661), 1932 states have internal predecessors, (4661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:27,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1933 states to 1933 states and 4661 transitions. [2021-07-13 19:08:27,245 INFO L78 Accepts]: Start accepts. Automaton has 1933 states and 4661 transitions. Word has length 119 [2021-07-13 19:08:27,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:08:27,245 INFO L482 AbstractCegarLoop]: Abstraction has 1933 states and 4661 transitions. [2021-07-13 19:08:27,245 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:27,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1933 states and 4661 transitions. [2021-07-13 19:08:27,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:08:27,247 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:08:27,247 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:08:27,247 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2021-07-13 19:08:27,247 INFO L430 AbstractCegarLoop]: === Iteration 263 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:08:27,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:08:27,248 INFO L82 PathProgramCache]: Analyzing trace with hash 378068201, now seen corresponding path program 210 times [2021-07-13 19:08:27,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:08:27,248 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24241546] [2021-07-13 19:08:27,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:08:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:08:27,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:08:27,860 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:08:27,860 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24241546] [2021-07-13 19:08:27,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24241546] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:08:27,860 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:08:27,860 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:08:27,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064576809] [2021-07-13 19:08:27,860 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:08:27,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:08:27,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:08:27,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:08:27,861 INFO L87 Difference]: Start difference. First operand 1933 states and 4661 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:29,483 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2021-07-13 19:08:29,975 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-07-13 19:08:30,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:08:30,780 INFO L93 Difference]: Finished difference Result 2451 states and 5787 transitions. [2021-07-13 19:08:30,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-13 19:08:30,780 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:08:30,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:08:30,783 INFO L225 Difference]: With dead ends: 2451 [2021-07-13 19:08:30,783 INFO L226 Difference]: Without dead ends: 1956 [2021-07-13 19:08:30,783 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 2605.4ms TimeCoverageRelationStatistics Valid=545, Invalid=2877, Unknown=0, NotChecked=0, Total=3422 [2021-07-13 19:08:30,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2021-07-13 19:08:30,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 1765. [2021-07-13 19:08:30,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1765 states, 1764 states have (on average 2.371315192743764) internal successors, (4183), 1764 states have internal predecessors, (4183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:30,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1765 states to 1765 states and 4183 transitions. [2021-07-13 19:08:30,801 INFO L78 Accepts]: Start accepts. Automaton has 1765 states and 4183 transitions. Word has length 119 [2021-07-13 19:08:30,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:08:30,802 INFO L482 AbstractCegarLoop]: Abstraction has 1765 states and 4183 transitions. [2021-07-13 19:08:30,802 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:30,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1765 states and 4183 transitions. [2021-07-13 19:08:30,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:08:30,803 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:08:30,804 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:08:30,804 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2021-07-13 19:08:30,804 INFO L430 AbstractCegarLoop]: === Iteration 264 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:08:30,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:08:30,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1613045767, now seen corresponding path program 211 times [2021-07-13 19:08:30,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:08:30,804 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763273437] [2021-07-13 19:08:30,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:08:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:08:31,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:08:31,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:08:31,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763273437] [2021-07-13 19:08:31,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763273437] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:08:31,390 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:08:31,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:08:31,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40232326] [2021-07-13 19:08:31,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:08:31,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:08:31,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:08:31,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:08:31,391 INFO L87 Difference]: Start difference. First operand 1765 states and 4183 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:33,141 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 68 [2021-07-13 19:08:33,478 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2021-07-13 19:08:34,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:08:34,059 INFO L93 Difference]: Finished difference Result 1964 states and 4583 transitions. [2021-07-13 19:08:34,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 19:08:34,059 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:08:34,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:08:34,062 INFO L225 Difference]: With dead ends: 1964 [2021-07-13 19:08:34,062 INFO L226 Difference]: Without dead ends: 1799 [2021-07-13 19:08:34,062 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 2356.4ms TimeCoverageRelationStatistics Valid=484, Invalid=2486, Unknown=0, NotChecked=0, Total=2970 [2021-07-13 19:08:34,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2021-07-13 19:08:34,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1705. [2021-07-13 19:08:34,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1705 states, 1704 states have (on average 2.3562206572769955) internal successors, (4015), 1704 states have internal predecessors, (4015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:34,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 4015 transitions. [2021-07-13 19:08:34,078 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 4015 transitions. Word has length 119 [2021-07-13 19:08:34,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:08:34,078 INFO L482 AbstractCegarLoop]: Abstraction has 1705 states and 4015 transitions. [2021-07-13 19:08:34,078 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:34,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 4015 transitions. [2021-07-13 19:08:34,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:08:34,080 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:08:34,080 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:08:34,080 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2021-07-13 19:08:34,080 INFO L430 AbstractCegarLoop]: === Iteration 265 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:08:34,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:08:34,080 INFO L82 PathProgramCache]: Analyzing trace with hash -363529467, now seen corresponding path program 212 times [2021-07-13 19:08:34,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:08:34,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748291664] [2021-07-13 19:08:34,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:08:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:08:34,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:08:34,686 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:08:34,686 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748291664] [2021-07-13 19:08:34,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748291664] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:08:34,687 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:08:34,687 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:08:34,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397558206] [2021-07-13 19:08:34,687 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:08:34,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:08:34,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:08:34,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:08:34,687 INFO L87 Difference]: Start difference. First operand 1705 states and 4015 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:36,437 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2021-07-13 19:08:36,767 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2021-07-13 19:08:37,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:08:37,328 INFO L93 Difference]: Finished difference Result 1884 states and 4372 transitions. [2021-07-13 19:08:37,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 19:08:37,328 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:08:37,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:08:37,330 INFO L225 Difference]: With dead ends: 1884 [2021-07-13 19:08:37,330 INFO L226 Difference]: Without dead ends: 1569 [2021-07-13 19:08:37,330 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 2410.6ms TimeCoverageRelationStatistics Valid=484, Invalid=2486, Unknown=0, NotChecked=0, Total=2970 [2021-07-13 19:08:37,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2021-07-13 19:08:37,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1525. [2021-07-13 19:08:37,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1524 states have (on average 2.3195538057742784) internal successors, (3535), 1524 states have internal predecessors, (3535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:37,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 3535 transitions. [2021-07-13 19:08:37,344 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 3535 transitions. Word has length 119 [2021-07-13 19:08:37,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:08:37,344 INFO L482 AbstractCegarLoop]: Abstraction has 1525 states and 3535 transitions. [2021-07-13 19:08:37,344 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:37,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 3535 transitions. [2021-07-13 19:08:37,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:08:37,345 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:08:37,345 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:08:37,345 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2021-07-13 19:08:37,345 INFO L430 AbstractCegarLoop]: === Iteration 266 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:08:37,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:08:37,346 INFO L82 PathProgramCache]: Analyzing trace with hash 425622033, now seen corresponding path program 213 times [2021-07-13 19:08:37,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:08:37,346 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50686924] [2021-07-13 19:08:37,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:08:37,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:08:37,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:08:37,923 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:08:37,924 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50686924] [2021-07-13 19:08:37,924 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50686924] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:08:37,924 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:08:37,924 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:08:37,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655470079] [2021-07-13 19:08:37,924 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:08:37,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:08:37,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:08:37,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:08:37,924 INFO L87 Difference]: Start difference. First operand 1525 states and 3535 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:40,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:08:40,506 INFO L93 Difference]: Finished difference Result 2011 states and 4636 transitions. [2021-07-13 19:08:40,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-13 19:08:40,506 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:08:40,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:08:40,508 INFO L225 Difference]: With dead ends: 2011 [2021-07-13 19:08:40,508 INFO L226 Difference]: Without dead ends: 1916 [2021-07-13 19:08:40,509 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 2348.3ms TimeCoverageRelationStatistics Valid=505, Invalid=2575, Unknown=0, NotChecked=0, Total=3080 [2021-07-13 19:08:40,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2021-07-13 19:08:40,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1693. [2021-07-13 19:08:40,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1692 states have (on average 2.33628841607565) internal successors, (3953), 1692 states have internal predecessors, (3953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:40,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 3953 transitions. [2021-07-13 19:08:40,526 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 3953 transitions. Word has length 119 [2021-07-13 19:08:40,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:08:40,526 INFO L482 AbstractCegarLoop]: Abstraction has 1693 states and 3953 transitions. [2021-07-13 19:08:40,526 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:40,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 3953 transitions. [2021-07-13 19:08:40,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:08:40,528 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:08:40,528 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:08:40,528 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2021-07-13 19:08:40,528 INFO L430 AbstractCegarLoop]: === Iteration 267 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:08:40,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:08:40,528 INFO L82 PathProgramCache]: Analyzing trace with hash -49084269, now seen corresponding path program 214 times [2021-07-13 19:08:40,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:08:40,528 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168075112] [2021-07-13 19:08:40,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:08:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:08:41,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:08:41,147 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:08:41,147 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168075112] [2021-07-13 19:08:41,147 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168075112] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:08:41,147 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:08:41,147 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:08:41,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151838074] [2021-07-13 19:08:41,147 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:08:41,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:08:41,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:08:41,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:08:41,148 INFO L87 Difference]: Start difference. First operand 1693 states and 3953 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:44,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:08:44,094 INFO L93 Difference]: Finished difference Result 2298 states and 5262 transitions. [2021-07-13 19:08:44,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:08:44,094 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:08:44,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:08:44,096 INFO L225 Difference]: With dead ends: 2298 [2021-07-13 19:08:44,096 INFO L226 Difference]: Without dead ends: 1803 [2021-07-13 19:08:44,097 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 2615.1ms TimeCoverageRelationStatistics Valid=566, Invalid=2974, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:08:44,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2021-07-13 19:08:44,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1525. [2021-07-13 19:08:44,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1524 states have (on average 2.2801837270341205) internal successors, (3475), 1524 states have internal predecessors, (3475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:44,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 3475 transitions. [2021-07-13 19:08:44,110 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 3475 transitions. Word has length 119 [2021-07-13 19:08:44,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:08:44,110 INFO L482 AbstractCegarLoop]: Abstraction has 1525 states and 3475 transitions. [2021-07-13 19:08:44,111 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:44,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 3475 transitions. [2021-07-13 19:08:44,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:08:44,112 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:08:44,112 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:08:44,112 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2021-07-13 19:08:44,112 INFO L430 AbstractCegarLoop]: === Iteration 268 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:08:44,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:08:44,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1185893297, now seen corresponding path program 215 times [2021-07-13 19:08:44,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:08:44,113 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835276510] [2021-07-13 19:08:44,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:08:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:08:44,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:08:44,714 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:08:44,714 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835276510] [2021-07-13 19:08:44,714 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835276510] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:08:44,714 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:08:44,714 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:08:44,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594088914] [2021-07-13 19:08:44,714 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:08:44,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:08:44,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:08:44,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:08:44,715 INFO L87 Difference]: Start difference. First operand 1525 states and 3475 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:46,547 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2021-07-13 19:08:47,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:08:47,422 INFO L93 Difference]: Finished difference Result 1772 states and 3972 transitions. [2021-07-13 19:08:47,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-13 19:08:47,423 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:08:47,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:08:47,425 INFO L225 Difference]: With dead ends: 1772 [2021-07-13 19:08:47,425 INFO L226 Difference]: Without dead ends: 1607 [2021-07-13 19:08:47,425 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 2430.0ms TimeCoverageRelationStatistics Valid=505, Invalid=2575, Unknown=0, NotChecked=0, Total=3080 [2021-07-13 19:08:47,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2021-07-13 19:08:47,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1465. [2021-07-13 19:08:47,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1465 states, 1464 states have (on average 2.2916666666666665) internal successors, (3355), 1464 states have internal predecessors, (3355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:47,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 3355 transitions. [2021-07-13 19:08:47,439 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 3355 transitions. Word has length 119 [2021-07-13 19:08:47,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:08:47,439 INFO L482 AbstractCegarLoop]: Abstraction has 1465 states and 3355 transitions. [2021-07-13 19:08:47,439 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:47,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 3355 transitions. [2021-07-13 19:08:47,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:08:47,440 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:08:47,440 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:08:47,441 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2021-07-13 19:08:47,441 INFO L430 AbstractCegarLoop]: === Iteration 269 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:08:47,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:08:47,441 INFO L82 PathProgramCache]: Analyzing trace with hash -2068815291, now seen corresponding path program 216 times [2021-07-13 19:08:47,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:08:47,441 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113102692] [2021-07-13 19:08:47,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:08:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:08:48,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:08:48,086 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:08:48,086 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113102692] [2021-07-13 19:08:48,086 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113102692] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:08:48,086 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:08:48,086 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:08:48,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978850436] [2021-07-13 19:08:48,086 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:08:48,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:08:48,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:08:48,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:08:48,087 INFO L87 Difference]: Start difference. First operand 1465 states and 3355 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:49,080 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-13 19:08:49,854 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-07-13 19:08:50,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:08:50,765 INFO L93 Difference]: Finished difference Result 1653 states and 3722 transitions. [2021-07-13 19:08:50,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-13 19:08:50,766 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:08:50,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:08:50,768 INFO L225 Difference]: With dead ends: 1653 [2021-07-13 19:08:50,768 INFO L226 Difference]: Without dead ends: 1558 [2021-07-13 19:08:50,768 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 2442.3ms TimeCoverageRelationStatistics Valid=514, Invalid=2566, Unknown=0, NotChecked=0, Total=3080 [2021-07-13 19:08:50,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2021-07-13 19:08:50,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1465. [2021-07-13 19:08:50,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1465 states, 1464 states have (on average 2.282103825136612) internal successors, (3341), 1464 states have internal predecessors, (3341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:50,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 3341 transitions. [2021-07-13 19:08:50,781 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 3341 transitions. Word has length 119 [2021-07-13 19:08:50,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:08:50,781 INFO L482 AbstractCegarLoop]: Abstraction has 1465 states and 3341 transitions. [2021-07-13 19:08:50,781 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:50,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 3341 transitions. [2021-07-13 19:08:50,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:08:50,783 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:08:50,783 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:08:50,783 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2021-07-13 19:08:50,783 INFO L430 AbstractCegarLoop]: === Iteration 270 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:08:50,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:08:50,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1751445703, now seen corresponding path program 217 times [2021-07-13 19:08:50,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:08:50,783 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79224171] [2021-07-13 19:08:50,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:08:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:08:51,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:08:51,437 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:08:51,437 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79224171] [2021-07-13 19:08:51,437 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79224171] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:08:51,437 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:08:51,437 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:08:51,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456094679] [2021-07-13 19:08:51,438 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:08:51,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:08:51,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:08:51,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:08:51,438 INFO L87 Difference]: Start difference. First operand 1465 states and 3341 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:52,463 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-13 19:08:54,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:08:54,404 INFO L93 Difference]: Finished difference Result 1760 states and 3904 transitions. [2021-07-13 19:08:54,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-07-13 19:08:54,404 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:08:54,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:08:54,406 INFO L225 Difference]: With dead ends: 1760 [2021-07-13 19:08:54,406 INFO L226 Difference]: Without dead ends: 1265 [2021-07-13 19:08:54,407 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 2673.5ms TimeCoverageRelationStatistics Valid=576, Invalid=2964, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 19:08:54,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2021-07-13 19:08:54,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1081. [2021-07-13 19:08:54,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 1080 states have (on average 2.1953703703703704) internal successors, (2371), 1080 states have internal predecessors, (2371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:54,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 2371 transitions. [2021-07-13 19:08:54,417 INFO L78 Accepts]: Start accepts. Automaton has 1081 states and 2371 transitions. Word has length 119 [2021-07-13 19:08:54,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:08:54,417 INFO L482 AbstractCegarLoop]: Abstraction has 1081 states and 2371 transitions. [2021-07-13 19:08:54,417 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:54,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states and 2371 transitions. [2021-07-13 19:08:54,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:08:54,418 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:08:54,418 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:08:54,418 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2021-07-13 19:08:54,418 INFO L430 AbstractCegarLoop]: === Iteration 271 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:08:54,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:08:54,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1307381041, now seen corresponding path program 218 times [2021-07-13 19:08:54,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:08:54,419 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075459070] [2021-07-13 19:08:54,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:08:54,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:08:55,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:08:55,066 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:08:55,066 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075459070] [2021-07-13 19:08:55,066 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075459070] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:08:55,066 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:08:55,066 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:08:55,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103994508] [2021-07-13 19:08:55,066 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:08:55,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:08:55,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:08:55,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:08:55,066 INFO L87 Difference]: Start difference. First operand 1081 states and 2371 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:56,051 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-07-13 19:08:56,502 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-07-13 19:08:57,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:08:57,500 INFO L93 Difference]: Finished difference Result 1192 states and 2571 transitions. [2021-07-13 19:08:57,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 19:08:57,500 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:08:57,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:08:57,502 INFO L225 Difference]: With dead ends: 1192 [2021-07-13 19:08:57,502 INFO L226 Difference]: Without dead ends: 1083 [2021-07-13 19:08:57,502 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 480 ImplicationChecksByTransitivity, 2322.3ms TimeCoverageRelationStatistics Valid=508, Invalid=2462, Unknown=0, NotChecked=0, Total=2970 [2021-07-13 19:08:57,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1083 states. [2021-07-13 19:08:57,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1083 to 1069. [2021-07-13 19:08:57,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1069 states, 1068 states have (on average 2.197565543071161) internal successors, (2347), 1068 states have internal predecessors, (2347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:57,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 2347 transitions. [2021-07-13 19:08:57,514 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 2347 transitions. Word has length 119 [2021-07-13 19:08:57,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:08:57,514 INFO L482 AbstractCegarLoop]: Abstraction has 1069 states and 2347 transitions. [2021-07-13 19:08:57,514 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:57,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 2347 transitions. [2021-07-13 19:08:57,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:08:57,515 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:08:57,515 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:08:57,515 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2021-07-13 19:08:57,515 INFO L430 AbstractCegarLoop]: === Iteration 272 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:08:57,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:08:57,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1526202811, now seen corresponding path program 219 times [2021-07-13 19:08:57,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:08:57,516 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448774453] [2021-07-13 19:08:57,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:08:57,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:08:58,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:08:58,126 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:08:58,126 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448774453] [2021-07-13 19:08:58,126 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448774453] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:08:58,126 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:08:58,127 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:08:58,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971855337] [2021-07-13 19:08:58,127 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:08:58,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:08:58,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:08:58,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:08:58,127 INFO L87 Difference]: Start difference. First operand 1069 states and 2347 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:08:59,849 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2021-07-13 19:09:00,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:09:00,688 INFO L93 Difference]: Finished difference Result 1226 states and 2646 transitions. [2021-07-13 19:09:00,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 19:09:00,689 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:09:00,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:09:00,690 INFO L225 Difference]: With dead ends: 1226 [2021-07-13 19:09:00,690 INFO L226 Difference]: Without dead ends: 1121 [2021-07-13 19:09:00,691 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 2387.3ms TimeCoverageRelationStatistics Valid=494, Invalid=2476, Unknown=0, NotChecked=0, Total=2970 [2021-07-13 19:09:00,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2021-07-13 19:09:00,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 1071. [2021-07-13 19:09:00,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 1070 states have (on average 2.196261682242991) internal successors, (2350), 1070 states have internal predecessors, (2350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:00,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 2350 transitions. [2021-07-13 19:09:00,700 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 2350 transitions. Word has length 119 [2021-07-13 19:09:00,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:09:00,700 INFO L482 AbstractCegarLoop]: Abstraction has 1071 states and 2350 transitions. [2021-07-13 19:09:00,700 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:00,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 2350 transitions. [2021-07-13 19:09:00,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:09:00,701 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:09:00,701 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:09:00,701 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2021-07-13 19:09:00,702 INFO L430 AbstractCegarLoop]: === Iteration 273 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:09:00,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:09:00,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1468121199, now seen corresponding path program 220 times [2021-07-13 19:09:00,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:09:00,702 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483831497] [2021-07-13 19:09:00,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:09:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:09:01,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:09:01,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:09:01,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483831497] [2021-07-13 19:09:01,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483831497] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:09:01,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:09:01,320 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:09:01,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634813778] [2021-07-13 19:09:01,320 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:09:01,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:09:01,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:09:01,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:09:01,321 INFO L87 Difference]: Start difference. First operand 1071 states and 2350 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:02,561 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 63 [2021-07-13 19:09:03,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:09:03,632 INFO L93 Difference]: Finished difference Result 1182 states and 2550 transitions. [2021-07-13 19:09:03,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 19:09:03,633 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:09:03,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:09:03,634 INFO L225 Difference]: With dead ends: 1182 [2021-07-13 19:09:03,634 INFO L226 Difference]: Without dead ends: 1071 [2021-07-13 19:09:03,634 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 2165.3ms TimeCoverageRelationStatistics Valid=488, Invalid=2374, Unknown=0, NotChecked=0, Total=2862 [2021-07-13 19:09:03,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2021-07-13 19:09:03,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1057. [2021-07-13 19:09:03,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 1056 states have (on average 2.199810606060606) internal successors, (2323), 1056 states have internal predecessors, (2323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:03,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 2323 transitions. [2021-07-13 19:09:03,644 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 2323 transitions. Word has length 119 [2021-07-13 19:09:03,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:09:03,644 INFO L482 AbstractCegarLoop]: Abstraction has 1057 states and 2323 transitions. [2021-07-13 19:09:03,644 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:03,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 2323 transitions. [2021-07-13 19:09:03,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:09:03,645 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:09:03,645 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:09:03,645 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2021-07-13 19:09:03,645 INFO L430 AbstractCegarLoop]: === Iteration 274 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:09:03,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:09:03,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1460837105, now seen corresponding path program 221 times [2021-07-13 19:09:03,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:09:03,646 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145776730] [2021-07-13 19:09:03,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:09:03,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:09:04,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:09:04,254 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:09:04,254 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145776730] [2021-07-13 19:09:04,254 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145776730] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:09:04,254 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:09:04,254 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:09:04,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556575389] [2021-07-13 19:09:04,255 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:09:04,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:09:04,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:09:04,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:09:04,255 INFO L87 Difference]: Start difference. First operand 1057 states and 2323 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:05,912 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 68 [2021-07-13 19:09:06,267 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2021-07-13 19:09:06,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:09:06,830 INFO L93 Difference]: Finished difference Result 1222 states and 2635 transitions. [2021-07-13 19:09:06,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-13 19:09:06,830 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:09:06,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:09:06,831 INFO L225 Difference]: With dead ends: 1222 [2021-07-13 19:09:06,831 INFO L226 Difference]: Without dead ends: 1087 [2021-07-13 19:09:06,832 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 2392.6ms TimeCoverageRelationStatistics Valid=486, Invalid=2484, Unknown=0, NotChecked=0, Total=2970 [2021-07-13 19:09:06,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2021-07-13 19:09:06,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 1045. [2021-07-13 19:09:06,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 1044 states have (on average 2.1848659003831417) internal successors, (2281), 1044 states have internal predecessors, (2281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:06,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 2281 transitions. [2021-07-13 19:09:06,841 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 2281 transitions. Word has length 119 [2021-07-13 19:09:06,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:09:06,841 INFO L482 AbstractCegarLoop]: Abstraction has 1045 states and 2281 transitions. [2021-07-13 19:09:06,841 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:06,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 2281 transitions. [2021-07-13 19:09:06,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:09:06,842 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:09:06,842 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:09:06,842 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2021-07-13 19:09:06,842 INFO L430 AbstractCegarLoop]: === Iteration 275 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:09:06,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:09:06,843 INFO L82 PathProgramCache]: Analyzing trace with hash -769699321, now seen corresponding path program 222 times [2021-07-13 19:09:06,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:09:06,843 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720062836] [2021-07-13 19:09:06,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:09:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:09:07,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:09:07,455 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:09:07,455 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720062836] [2021-07-13 19:09:07,455 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720062836] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:09:07,455 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:09:07,455 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:09:07,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061901271] [2021-07-13 19:09:07,456 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:09:07,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:09:07,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:09:07,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:09:07,456 INFO L87 Difference]: Start difference. First operand 1045 states and 2281 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:09,026 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2021-07-13 19:09:09,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:09:09,857 INFO L93 Difference]: Finished difference Result 1182 states and 2537 transitions. [2021-07-13 19:09:09,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 19:09:09,857 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:09:09,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:09:09,859 INFO L225 Difference]: With dead ends: 1182 [2021-07-13 19:09:09,859 INFO L226 Difference]: Without dead ends: 1077 [2021-07-13 19:09:09,859 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 2252.7ms TimeCoverageRelationStatistics Valid=475, Invalid=2387, Unknown=0, NotChecked=0, Total=2862 [2021-07-13 19:09:09,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2021-07-13 19:09:09,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1041. [2021-07-13 19:09:09,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1041 states, 1040 states have (on average 2.1798076923076923) internal successors, (2267), 1040 states have internal predecessors, (2267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:09,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 2267 transitions. [2021-07-13 19:09:09,868 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 2267 transitions. Word has length 119 [2021-07-13 19:09:09,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:09:09,868 INFO L482 AbstractCegarLoop]: Abstraction has 1041 states and 2267 transitions. [2021-07-13 19:09:09,868 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:09,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 2267 transitions. [2021-07-13 19:09:09,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:09:09,869 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:09:09,869 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:09:09,870 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2021-07-13 19:09:09,870 INFO L430 AbstractCegarLoop]: === Iteration 276 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:09:09,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:09:09,870 INFO L82 PathProgramCache]: Analyzing trace with hash -711617709, now seen corresponding path program 223 times [2021-07-13 19:09:09,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:09:09,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278383121] [2021-07-13 19:09:09,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:09:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:09:10,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:09:10,511 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:09:10,511 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278383121] [2021-07-13 19:09:10,511 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278383121] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:09:10,511 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:09:10,511 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:09:10,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198648101] [2021-07-13 19:09:10,511 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:09:10,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:09:10,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:09:10,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:09:10,512 INFO L87 Difference]: Start difference. First operand 1041 states and 2267 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:11,888 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-07-13 19:09:12,025 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-07-13 19:09:12,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:09:12,792 INFO L93 Difference]: Finished difference Result 1138 states and 2441 transitions. [2021-07-13 19:09:12,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 19:09:12,792 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:09:12,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:09:12,793 INFO L225 Difference]: With dead ends: 1138 [2021-07-13 19:09:12,793 INFO L226 Difference]: Without dead ends: 889 [2021-07-13 19:09:12,794 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 2168.2ms TimeCoverageRelationStatistics Valid=469, Invalid=2287, Unknown=0, NotChecked=0, Total=2756 [2021-07-13 19:09:12,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2021-07-13 19:09:12,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 889. [2021-07-13 19:09:12,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 888 states have (on average 2.1171171171171173) internal successors, (1880), 888 states have internal predecessors, (1880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:12,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1880 transitions. [2021-07-13 19:09:12,801 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1880 transitions. Word has length 119 [2021-07-13 19:09:12,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:09:12,801 INFO L482 AbstractCegarLoop]: Abstraction has 889 states and 1880 transitions. [2021-07-13 19:09:12,802 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:12,802 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1880 transitions. [2021-07-13 19:09:12,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:09:12,802 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:09:12,803 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:09:12,803 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2021-07-13 19:09:12,803 INFO L430 AbstractCegarLoop]: === Iteration 277 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:09:12,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:09:12,803 INFO L82 PathProgramCache]: Analyzing trace with hash 717823227, now seen corresponding path program 224 times [2021-07-13 19:09:12,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:09:12,803 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768488428] [2021-07-13 19:09:12,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:09:12,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:09:13,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:09:13,409 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:09:13,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768488428] [2021-07-13 19:09:13,409 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768488428] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:09:13,409 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:09:13,409 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:09:13,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102682664] [2021-07-13 19:09:13,409 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:09:13,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:09:13,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:09:13,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:09:13,410 INFO L87 Difference]: Start difference. First operand 889 states and 1880 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:14,539 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-07-13 19:09:14,758 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-07-13 19:09:15,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:09:15,635 INFO L93 Difference]: Finished difference Result 1027 states and 2133 transitions. [2021-07-13 19:09:15,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:09:15,635 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:09:15,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:09:15,636 INFO L225 Difference]: With dead ends: 1027 [2021-07-13 19:09:15,636 INFO L226 Difference]: Without dead ends: 843 [2021-07-13 19:09:15,637 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 2093.6ms TimeCoverageRelationStatistics Valid=448, Invalid=2204, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:09:15,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2021-07-13 19:09:15,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 843. [2021-07-13 19:09:15,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 843 states, 842 states have (on average 2.1009501187648456) internal successors, (1769), 842 states have internal predecessors, (1769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:15,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1769 transitions. [2021-07-13 19:09:15,644 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1769 transitions. Word has length 119 [2021-07-13 19:09:15,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:09:15,644 INFO L482 AbstractCegarLoop]: Abstraction has 843 states and 1769 transitions. [2021-07-13 19:09:15,644 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:15,644 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1769 transitions. [2021-07-13 19:09:15,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:09:15,645 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:09:15,645 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:09:15,645 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2021-07-13 19:09:15,645 INFO L430 AbstractCegarLoop]: === Iteration 278 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:09:15,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:09:15,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1313931959, now seen corresponding path program 225 times [2021-07-13 19:09:15,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:09:15,645 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139795575] [2021-07-13 19:09:15,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:09:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:09:16,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:09:16,275 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:09:16,275 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139795575] [2021-07-13 19:09:16,275 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139795575] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:09:16,276 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:09:16,276 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:09:16,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138850426] [2021-07-13 19:09:16,276 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:09:16,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:09:16,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:09:16,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:09:16,276 INFO L87 Difference]: Start difference. First operand 843 states and 1769 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:17,392 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-07-13 19:09:17,637 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-07-13 19:09:18,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:09:18,519 INFO L93 Difference]: Finished difference Result 1031 states and 2124 transitions. [2021-07-13 19:09:18,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:09:18,520 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:09:18,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:09:18,521 INFO L225 Difference]: With dead ends: 1031 [2021-07-13 19:09:18,521 INFO L226 Difference]: Without dead ends: 893 [2021-07-13 19:09:18,521 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 2092.4ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:09:18,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2021-07-13 19:09:18,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 849. [2021-07-13 19:09:18,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 848 states have (on average 2.0908018867924527) internal successors, (1773), 848 states have internal predecessors, (1773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:18,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1773 transitions. [2021-07-13 19:09:18,529 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1773 transitions. Word has length 119 [2021-07-13 19:09:18,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:09:18,529 INFO L482 AbstractCegarLoop]: Abstraction has 849 states and 1773 transitions. [2021-07-13 19:09:18,529 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:18,529 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1773 transitions. [2021-07-13 19:09:18,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:09:18,530 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:09:18,530 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:09:18,530 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2021-07-13 19:09:18,530 INFO L430 AbstractCegarLoop]: === Iteration 279 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:09:18,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:09:18,530 INFO L82 PathProgramCache]: Analyzing trace with hash -794571189, now seen corresponding path program 226 times [2021-07-13 19:09:18,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:09:18,531 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095279834] [2021-07-13 19:09:18,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:09:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:09:19,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:09:19,175 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:09:19,175 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095279834] [2021-07-13 19:09:19,175 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095279834] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:09:19,175 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:09:19,175 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:09:19,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76044260] [2021-07-13 19:09:19,175 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:09:19,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:09:19,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:09:19,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:09:19,176 INFO L87 Difference]: Start difference. First operand 849 states and 1773 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:20,505 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2021-07-13 19:09:21,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:09:21,601 INFO L93 Difference]: Finished difference Result 1023 states and 2106 transitions. [2021-07-13 19:09:21,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 19:09:21,602 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:09:21,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:09:21,603 INFO L225 Difference]: With dead ends: 1023 [2021-07-13 19:09:21,603 INFO L226 Difference]: Without dead ends: 891 [2021-07-13 19:09:21,603 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 2274.2ms TimeCoverageRelationStatistics Valid=481, Invalid=2381, Unknown=0, NotChecked=0, Total=2862 [2021-07-13 19:09:21,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2021-07-13 19:09:21,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 849. [2021-07-13 19:09:21,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 848 states have (on average 2.088443396226415) internal successors, (1771), 848 states have internal predecessors, (1771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:21,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1771 transitions. [2021-07-13 19:09:21,610 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1771 transitions. Word has length 119 [2021-07-13 19:09:21,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:09:21,610 INFO L482 AbstractCegarLoop]: Abstraction has 849 states and 1771 transitions. [2021-07-13 19:09:21,611 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:21,611 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1771 transitions. [2021-07-13 19:09:21,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:09:21,611 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:09:21,612 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:09:21,612 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2021-07-13 19:09:21,612 INFO L430 AbstractCegarLoop]: === Iteration 280 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:09:21,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:09:21,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1185280615, now seen corresponding path program 227 times [2021-07-13 19:09:21,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:09:21,612 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437422691] [2021-07-13 19:09:21,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:09:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:09:22,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:09:22,265 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:09:22,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437422691] [2021-07-13 19:09:22,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437422691] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:09:22,265 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:09:22,265 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:09:22,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887455605] [2021-07-13 19:09:22,266 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:09:22,266 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:09:22,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:09:22,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:09:22,266 INFO L87 Difference]: Start difference. First operand 849 states and 1771 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:24,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:09:24,565 INFO L93 Difference]: Finished difference Result 1069 states and 2187 transitions. [2021-07-13 19:09:24,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 19:09:24,565 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:09:24,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:09:24,566 INFO L225 Difference]: With dead ends: 1069 [2021-07-13 19:09:24,566 INFO L226 Difference]: Without dead ends: 916 [2021-07-13 19:09:24,567 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 2161.9ms TimeCoverageRelationStatistics Valid=450, Invalid=2306, Unknown=0, NotChecked=0, Total=2756 [2021-07-13 19:09:24,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2021-07-13 19:09:24,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 813. [2021-07-13 19:09:24,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 812 states have (on average 2.0726600985221677) internal successors, (1683), 812 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:24,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1683 transitions. [2021-07-13 19:09:24,574 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1683 transitions. Word has length 119 [2021-07-13 19:09:24,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:09:24,574 INFO L482 AbstractCegarLoop]: Abstraction has 813 states and 1683 transitions. [2021-07-13 19:09:24,574 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:24,574 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1683 transitions. [2021-07-13 19:09:24,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:09:24,575 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:09:24,575 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:09:24,575 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2021-07-13 19:09:24,575 INFO L430 AbstractCegarLoop]: === Iteration 281 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:09:24,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:09:24,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1226325523, now seen corresponding path program 228 times [2021-07-13 19:09:24,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:09:24,576 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248711043] [2021-07-13 19:09:24,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:09:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:09:25,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:09:25,224 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:09:25,224 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248711043] [2021-07-13 19:09:25,224 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248711043] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:09:25,224 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:09:25,224 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:09:25,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853274765] [2021-07-13 19:09:25,224 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:09:25,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:09:25,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:09:25,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:09:25,225 INFO L87 Difference]: Start difference. First operand 813 states and 1683 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:26,303 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-07-13 19:09:26,554 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-07-13 19:09:27,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:09:27,423 INFO L93 Difference]: Finished difference Result 918 states and 1860 transitions. [2021-07-13 19:09:27,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:09:27,424 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:09:27,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:09:27,425 INFO L225 Difference]: With dead ends: 918 [2021-07-13 19:09:27,425 INFO L226 Difference]: Without dead ends: 811 [2021-07-13 19:09:27,425 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 2017.6ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:09:27,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2021-07-13 19:09:27,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 773. [2021-07-13 19:09:27,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 772 states have (on average 2.0544041450777204) internal successors, (1586), 772 states have internal predecessors, (1586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:27,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1586 transitions. [2021-07-13 19:09:27,432 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1586 transitions. Word has length 119 [2021-07-13 19:09:27,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:09:27,432 INFO L482 AbstractCegarLoop]: Abstraction has 773 states and 1586 transitions. [2021-07-13 19:09:27,432 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:27,432 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1586 transitions. [2021-07-13 19:09:27,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:09:27,433 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:09:27,433 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:09:27,433 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2021-07-13 19:09:27,433 INFO L430 AbstractCegarLoop]: === Iteration 282 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:09:27,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:09:27,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1002052987, now seen corresponding path program 229 times [2021-07-13 19:09:27,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:09:27,434 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407075634] [2021-07-13 19:09:27,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:09:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:09:27,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:09:27,914 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:09:27,914 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407075634] [2021-07-13 19:09:27,914 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407075634] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:09:27,915 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:09:27,915 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:09:27,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363212228] [2021-07-13 19:09:27,915 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:09:27,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:09:27,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:09:27,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:09:27,915 INFO L87 Difference]: Start difference. First operand 773 states and 1586 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:29,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:09:29,888 INFO L93 Difference]: Finished difference Result 1005 states and 2029 transitions. [2021-07-13 19:09:29,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:09:29,888 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:09:29,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:09:29,889 INFO L225 Difference]: With dead ends: 1005 [2021-07-13 19:09:29,889 INFO L226 Difference]: Without dead ends: 831 [2021-07-13 19:09:29,889 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 1691.6ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:09:29,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2021-07-13 19:09:29,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 777. [2021-07-13 19:09:29,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 776 states have (on average 2.054123711340206) internal successors, (1594), 776 states have internal predecessors, (1594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:29,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1594 transitions. [2021-07-13 19:09:29,896 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1594 transitions. Word has length 119 [2021-07-13 19:09:29,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:09:29,897 INFO L482 AbstractCegarLoop]: Abstraction has 777 states and 1594 transitions. [2021-07-13 19:09:29,897 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:29,897 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1594 transitions. [2021-07-13 19:09:29,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:09:29,898 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:09:29,898 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:09:29,898 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2021-07-13 19:09:29,898 INFO L430 AbstractCegarLoop]: === Iteration 283 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:09:29,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:09:29,898 INFO L82 PathProgramCache]: Analyzing trace with hash 124355597, now seen corresponding path program 230 times [2021-07-13 19:09:29,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:09:29,898 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796351098] [2021-07-13 19:09:29,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:09:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:09:30,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:09:30,514 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:09:30,514 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796351098] [2021-07-13 19:09:30,514 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796351098] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:09:30,514 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:09:30,514 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:09:30,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700580754] [2021-07-13 19:09:30,515 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:09:30,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:09:30,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:09:30,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:09:30,515 INFO L87 Difference]: Start difference. First operand 777 states and 1594 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:31,587 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-07-13 19:09:31,852 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-07-13 19:09:32,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:09:32,719 INFO L93 Difference]: Finished difference Result 1011 states and 2032 transitions. [2021-07-13 19:09:32,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:09:32,719 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:09:32,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:09:32,720 INFO L225 Difference]: With dead ends: 1011 [2021-07-13 19:09:32,721 INFO L226 Difference]: Without dead ends: 822 [2021-07-13 19:09:32,721 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 2046.1ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:09:32,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2021-07-13 19:09:32,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 782. [2021-07-13 19:09:32,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 781 states have (on average 2.0473751600512164) internal successors, (1599), 781 states have internal predecessors, (1599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:32,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1599 transitions. [2021-07-13 19:09:32,728 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1599 transitions. Word has length 119 [2021-07-13 19:09:32,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:09:32,728 INFO L482 AbstractCegarLoop]: Abstraction has 782 states and 1599 transitions. [2021-07-13 19:09:32,728 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:32,728 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1599 transitions. [2021-07-13 19:09:32,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:09:32,729 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:09:32,729 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:09:32,729 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2021-07-13 19:09:32,729 INFO L430 AbstractCegarLoop]: === Iteration 284 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:09:32,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:09:32,729 INFO L82 PathProgramCache]: Analyzing trace with hash -532343645, now seen corresponding path program 231 times [2021-07-13 19:09:32,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:09:32,729 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727714720] [2021-07-13 19:09:32,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:09:32,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:09:33,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:09:33,354 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:09:33,354 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727714720] [2021-07-13 19:09:33,355 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727714720] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:09:33,355 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:09:33,355 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:09:33,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147699605] [2021-07-13 19:09:33,355 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:09:33,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:09:33,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:09:33,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:09:33,355 INFO L87 Difference]: Start difference. First operand 782 states and 1599 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:35,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:09:35,582 INFO L93 Difference]: Finished difference Result 1095 states and 2196 transitions. [2021-07-13 19:09:35,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-13 19:09:35,582 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:09:35,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:09:35,583 INFO L225 Difference]: With dead ends: 1095 [2021-07-13 19:09:35,583 INFO L226 Difference]: Without dead ends: 898 [2021-07-13 19:09:35,584 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 2073.1ms TimeCoverageRelationStatistics Valid=455, Invalid=2301, Unknown=0, NotChecked=0, Total=2756 [2021-07-13 19:09:35,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2021-07-13 19:09:35,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 785. [2021-07-13 19:09:35,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 784 states have (on average 2.044642857142857) internal successors, (1603), 784 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:35,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1603 transitions. [2021-07-13 19:09:35,615 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1603 transitions. Word has length 119 [2021-07-13 19:09:35,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:09:35,616 INFO L482 AbstractCegarLoop]: Abstraction has 785 states and 1603 transitions. [2021-07-13 19:09:35,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:35,616 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1603 transitions. [2021-07-13 19:09:35,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:09:35,617 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:09:35,617 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:09:35,617 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2021-07-13 19:09:35,617 INFO L430 AbstractCegarLoop]: === Iteration 285 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:09:35,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:09:35,617 INFO L82 PathProgramCache]: Analyzing trace with hash -946112041, now seen corresponding path program 232 times [2021-07-13 19:09:35,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:09:35,617 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473396612] [2021-07-13 19:09:35,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:09:35,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:09:36,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:09:36,249 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:09:36,249 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473396612] [2021-07-13 19:09:36,249 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473396612] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:09:36,249 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:09:36,250 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:09:36,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311101564] [2021-07-13 19:09:36,250 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:09:36,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:09:36,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:09:36,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:09:36,250 INFO L87 Difference]: Start difference. First operand 785 states and 1603 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:37,539 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-07-13 19:09:38,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 19:09:38,446 INFO L93 Difference]: Finished difference Result 999 states and 2003 transitions. [2021-07-13 19:09:38,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 19:09:38,446 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-07-13 19:09:38,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 19:09:38,447 INFO L225 Difference]: With dead ends: 999 [2021-07-13 19:09:38,447 INFO L226 Difference]: Without dead ends: 805 [2021-07-13 19:09:38,448 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 2047.7ms TimeCoverageRelationStatistics Valid=451, Invalid=2201, Unknown=0, NotChecked=0, Total=2652 [2021-07-13 19:09:38,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2021-07-13 19:09:38,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 771. [2021-07-13 19:09:38,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 770 states have (on average 2.053246753246753) internal successors, (1581), 770 states have internal predecessors, (1581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:38,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1581 transitions. [2021-07-13 19:09:38,454 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1581 transitions. Word has length 119 [2021-07-13 19:09:38,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 19:09:38,455 INFO L482 AbstractCegarLoop]: Abstraction has 771 states and 1581 transitions. [2021-07-13 19:09:38,455 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 19:09:38,455 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1581 transitions. [2021-07-13 19:09:38,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-07-13 19:09:38,456 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 19:09:38,456 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-13 19:09:38,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2021-07-13 19:09:38,456 INFO L430 AbstractCegarLoop]: === Iteration 286 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 19:09:38,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 19:09:38,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1479428883, now seen corresponding path program 233 times [2021-07-13 19:09:38,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 19:09:38,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126284969] [2021-07-13 19:09:38,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 19:09:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 19:09:39,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 19:09:39,086 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 19:09:39,086 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126284969] [2021-07-13 19:09:39,086 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126284969] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 19:09:39,086 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 19:09:39,086 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-07-13 19:09:39,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221837166] [2021-07-13 19:09:39,086 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-13 19:09:39,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 19:09:39,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-13 19:09:39,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-07-13 19:09:39,086 INFO L87 Difference]: Start difference. First operand 771 states and 1581 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2021-07-13 19:09:39,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 19:09:39,923 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2021-07-13 19:09:39,923 WARN L547 AbstractCegarLoop]: Verification canceled [2021-07-13 19:09:39,925 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-13 19:09:39,926 WARN L196 ceAbstractionStarter]: Timeout [2021-07-13 19:09:39,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 07:09:39 BasicIcfg [2021-07-13 19:09:39,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-13 19:09:39,927 INFO L168 Benchmark]: Toolchain (without parser) took 839761.92 ms. Allocated memory was 215.0 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 175.8 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 233.7 MB. Max. memory is 8.0 GB. [2021-07-13 19:09:39,927 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 215.0 MB. Free memory is still 195.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-13 19:09:39,927 INFO L168 Benchmark]: CACSL2BoogieTranslator took 741.01 ms. Allocated memory is still 215.0 MB. Free memory was 175.6 MB in the beginning and 152.3 MB in the end (delta: 23.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-07-13 19:09:39,927 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.38 ms. Allocated memory is still 215.0 MB. Free memory was 152.3 MB in the beginning and 148.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-07-13 19:09:39,927 INFO L168 Benchmark]: Boogie Preprocessor took 48.78 ms. Allocated memory is still 215.0 MB. Free memory was 148.6 MB in the beginning and 146.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-07-13 19:09:39,927 INFO L168 Benchmark]: RCFGBuilder took 561.62 ms. Allocated memory is still 215.0 MB. Free memory was 146.0 MB in the beginning and 156.8 MB in the end (delta: -10.8 MB). Peak memory consumption was 14.9 MB. Max. memory is 8.0 GB. [2021-07-13 19:09:39,927 INFO L168 Benchmark]: TraceAbstraction took 838322.85 ms. Allocated memory was 215.0 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 156.3 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 214.1 MB. Max. memory is 8.0 GB. [2021-07-13 19:09:39,927 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 215.0 MB. Free memory is still 195.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 741.01 ms. Allocated memory is still 215.0 MB. Free memory was 175.6 MB in the beginning and 152.3 MB in the end (delta: 23.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 64.38 ms. Allocated memory is still 215.0 MB. Free memory was 152.3 MB in the beginning and 148.6 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 48.78 ms. Allocated memory is still 215.0 MB. Free memory was 148.6 MB in the beginning and 146.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 561.62 ms. Allocated memory is still 215.0 MB. Free memory was 146.0 MB in the beginning and 156.8 MB in the end (delta: -10.8 MB). Peak memory consumption was 14.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 838322.85 ms. Allocated memory was 215.0 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 156.3 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 214.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (771states) and FLOYD_HOARE automaton (currently 13 states, 28 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 37 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 (771states) and FLOYD_HOARE automaton (currently 13 states, 28 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 37 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 (771states) and FLOYD_HOARE automaton (currently 13 states, 28 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 37 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 (771states) and FLOYD_HOARE automaton (currently 13 states, 28 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 37 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 (771states) and FLOYD_HOARE automaton (currently 13 states, 28 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 37 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 (771states) and FLOYD_HOARE automaton (currently 13 states, 28 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 37 known predicates. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 4 procedures, 176 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 838243.6ms, OverallIterations: 286, TraceHistogramMax: 1, EmptinessCheckTime: 1685.4ms, AutomataDifference: 652155.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 160.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 54968 SDtfs, 254241 SDslu, 637038 SDs, 0 SdLazy, 374942 SolverSat, 25767 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 166359.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15444 GetRequests, 841 SyntacticMatches, 640 SemanticMatches, 13962 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126954 ImplicationChecksByTransitivity, 558086.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10192occurred in iteration=29, InterpolantAutomatonStates: 8686, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 22391.3ms AutomataMinimizationTime, 285 MinimizatonAttempts, 293006 StatesRemovedByMinimization, 278 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 440.4ms SsaConstructionTime, 3924.8ms SatisfiabilityAnalysisTime, 155158.3ms InterpolantComputationTime, 33435 NumberOfCodeBlocks, 33435 NumberOfCodeBlocksAsserted, 286 NumberOfCheckSat, 33149 ConstructedInterpolants, 0 QuantifiedInterpolants, 704564 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 286 InterpolantComputations, 286 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