/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9b7772ad7705253c1305067fc38dc9bc7271fbe3-9b7772a [2021-04-15 01:07:43,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-15 01:07:43,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-15 01:07:43,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-15 01:07:43,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-15 01:07:43,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-15 01:07:43,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-15 01:07:43,819 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 [2021-04-15 01:07:43,846 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-15 01:07:43,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-15 01:07:43,847 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-04-15 01:07:43,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-04-15 01:07:43,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-15 01:07:43,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-15 01:07:43,848 INFO L138 SettingsManager]: * Use SBE=true [2021-04-15 01:07:43,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-15 01:07:43,848 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-15 01:07:43,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-15 01:07:43,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-15 01:07:43,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-15 01:07:43,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-15 01:07:43,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-15 01:07:43,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-15 01:07:43,849 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-15 01:07:43,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-15 01:07:43,850 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-15 01:07:43,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-15 01:07:43,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-15 01:07:43,850 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-15 01:07:43,850 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-15 01:07:43,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-15 01:07:43,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-15 01:07:43,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-15 01:07:43,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-15 01:07:43,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-15 01:07:43,851 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-15 01:07:43,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-15 01:07:43,851 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-04-15 01:07:43,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-15 01:07:43,852 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-15 01:07:44,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-15 01:07:44,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-15 01:07:44,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-15 01:07:44,155 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-15 01:07:44,156 INFO L275 PluginConnector]: CDTParser initialized [2021-04-15 01:07:44,158 INFO L432 ainManager$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 [2021-04-15 01:07:44,219 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dec331a7/a5faab83e87a4547a600dc144f443113/FLAG07eb077d6 [2021-04-15 01:07:44,838 INFO L306 CDTParser]: Found 1 translation units. [2021-04-15 01:07:44,839 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-04-15 01:07:44,856 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dec331a7/a5faab83e87a4547a600dc144f443113/FLAG07eb077d6 [2021-04-15 01:07:45,231 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dec331a7/a5faab83e87a4547a600dc144f443113 [2021-04-15 01:07:45,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-15 01:07:45,236 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-15 01:07:45,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-15 01:07:45,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-15 01:07:45,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-15 01:07:45,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 01:07:45" (1/1) ... [2021-04-15 01:07:45,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79aa88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:07:45, skipping insertion in model container [2021-04-15 01:07:45,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 01:07:45" (1/1) ... [2021-04-15 01:07:45,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-15 01:07:45,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-15 01:07:45,806 WARN L226 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] [2021-04-15 01:07:45,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-15 01:07:45,830 INFO L203 MainTranslator]: Completed pre-run [2021-04-15 01:07:45,866 WARN L226 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] [2021-04-15 01:07:45,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-15 01:07:46,177 INFO L208 MainTranslator]: Completed translation [2021-04-15 01:07:46,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:07:46 WrapperNode [2021-04-15 01:07:46,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-15 01:07:46,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-15 01:07:46,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-15 01:07:46,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-15 01:07:46,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:07:46" (1/1) ... [2021-04-15 01:07:46,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:07:46" (1/1) ... [2021-04-15 01:07:46,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-15 01:07:46,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-15 01:07:46,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-15 01:07:46,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-15 01:07:46,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:07:46" (1/1) ... [2021-04-15 01:07:46,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:07:46" (1/1) ... [2021-04-15 01:07:46,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:07:46" (1/1) ... [2021-04-15 01:07:46,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:07:46" (1/1) ... [2021-04-15 01:07:46,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:07:46" (1/1) ... [2021-04-15 01:07:46,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:07:46" (1/1) ... [2021-04-15 01:07:46,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:07:46" (1/1) ... [2021-04-15 01:07:46,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-15 01:07:46,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-15 01:07:46,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-15 01:07:46,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-15 01:07:46,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:07:46" (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 [2021-04-15 01:07:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-15 01:07:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-15 01:07:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-04-15 01:07:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-04-15 01:07:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-15 01:07:46,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-15 01:07:46,397 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-04-15 01:07:46,397 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-04-15 01:07:46,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-15 01:07:46,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-15 01:07:46,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-15 01:07:46,399 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-15 01:07:46,971 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-15 01:07:46,971 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-04-15 01:07:46,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 01:07:46 BoogieIcfgContainer [2021-04-15 01:07:46,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-15 01:07:46,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-15 01:07:46,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-15 01:07:46,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-15 01:07:46,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 01:07:45" (1/3) ... [2021-04-15 01:07:46,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc974b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 01:07:46, skipping insertion in model container [2021-04-15 01:07:46,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 01:07:46" (2/3) ... [2021-04-15 01:07:46,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc974b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 01:07:46, skipping insertion in model container [2021-04-15 01:07:46,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 01:07:46" (3/3) ... [2021-04-15 01:07:46,979 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2021-04-15 01:07:46,983 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-04-15 01:07:46,983 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-15 01:07:46,987 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-04-15 01:07:46,988 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-15 01:07:47,012 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,012 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,013 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,013 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,013 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,013 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,013 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,013 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,013 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,014 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,014 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,014 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,014 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,014 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,014 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,014 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,014 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,015 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,015 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,015 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,015 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,015 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,015 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,015 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,015 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,015 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,016 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,016 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,016 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,016 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,016 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,016 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,016 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,016 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,017 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,017 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,017 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,017 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,017 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,017 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,017 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,017 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,018 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,018 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,018 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,018 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,018 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,018 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,018 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,018 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,019 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,019 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,019 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,019 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,019 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,019 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,019 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,019 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,020 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,020 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,020 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,020 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,020 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,020 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,020 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,020 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,020 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,020 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,021 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,021 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,021 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,021 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,021 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,021 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,021 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,021 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,021 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,022 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,022 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,022 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,022 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,022 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,022 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,022 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,022 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,023 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,023 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,023 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,023 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,023 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,023 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,023 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,023 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,024 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,024 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,024 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,024 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,024 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,024 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,024 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,024 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,025 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,025 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,025 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,025 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,025 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,025 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,025 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,026 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,026 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,026 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,026 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,026 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,026 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,026 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,026 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,028 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,028 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,028 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,028 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,029 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,029 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,029 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,029 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,029 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,029 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,038 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,038 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,039 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,039 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,039 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,039 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,039 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,039 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,039 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,039 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-15 01:07:47,047 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-04-15 01:07:47,059 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-04-15 01:07:47,075 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-15 01:07:47,075 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-15 01:07:47,075 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-15 01:07:47,075 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-15 01:07:47,075 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-15 01:07:47,075 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-15 01:07:47,075 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-15 01:07:47,075 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-15 01:07:47,086 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 160 places, 164 transitions, 350 flow [2021-04-15 01:07:47,400 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7942 states, 7931 states have (on average 2.8384819064430715) internal successors, (22512), 7941 states have internal predecessors, (22512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:07:47,435 INFO L276 IsEmpty]: Start isEmpty. Operand has 7942 states, 7931 states have (on average 2.8384819064430715) internal successors, (22512), 7941 states have internal predecessors, (22512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:07:47,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-04-15 01:07:47,441 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:07:47,441 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:07:47,442 INFO L428 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]=== [2021-04-15 01:07:47,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:07:47,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1078115023, now seen corresponding path program 1 times [2021-04-15 01:07:47,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:07:47,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707525340] [2021-04-15 01:07:47,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:07:47,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:07:47,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:07:47,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707525340] [2021-04-15 01:07:47,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:07:47,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-15 01:07:47,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034555684] [2021-04-15 01:07:47,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-15 01:07:47,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:07:47,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-15 01:07:47,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-04-15 01:07:47,882 INFO L87 Difference]: Start difference. First operand has 7942 states, 7931 states have (on average 2.8384819064430715) internal successors, (22512), 7941 states have internal predecessors, (22512), 0 states have call successors, (0), 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) [2021-04-15 01:07:48,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:07:48,185 INFO L93 Difference]: Finished difference Result 7547 states and 20990 transitions. [2021-04-15 01:07:48,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-15 01:07:48,186 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 [2021-04-15 01:07:48,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:07:48,236 INFO L225 Difference]: With dead ends: 7547 [2021-04-15 01:07:48,236 INFO L226 Difference]: Without dead ends: 6158 [2021-04-15 01:07:48,238 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 75.4ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-04-15 01:07:48,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6158 states. [2021-04-15 01:07:48,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6158 to 6157. [2021-04-15 01:07:48,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6157 states, 6150 states have (on average 2.772682926829268) internal successors, (17052), 6156 states have internal predecessors, (17052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:07:48,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6157 states to 6157 states and 17052 transitions. [2021-04-15 01:07:48,583 INFO L78 Accepts]: Start accepts. Automaton has 6157 states and 17052 transitions. Word has length 36 [2021-04-15 01:07:48,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:07:48,583 INFO L480 AbstractCegarLoop]: Abstraction has 6157 states and 17052 transitions. [2021-04-15 01:07:48,584 INFO L481 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) [2021-04-15 01:07:48,584 INFO L276 IsEmpty]: Start isEmpty. Operand 6157 states and 17052 transitions. [2021-04-15 01:07:48,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-04-15 01:07:48,585 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:07:48,585 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:07:48,586 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-15 01:07:48,586 INFO L428 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]=== [2021-04-15 01:07:48,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:07:48,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1074499604, now seen corresponding path program 1 times [2021-04-15 01:07:48,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:07:48,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577671282] [2021-04-15 01:07:48,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:07:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:07:48,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:07:48,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577671282] [2021-04-15 01:07:48,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:07:48,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-15 01:07:48,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444617710] [2021-04-15 01:07:48,768 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-15 01:07:48,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:07:48,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-15 01:07:48,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-04-15 01:07:48,770 INFO L87 Difference]: Start difference. First operand 6157 states and 17052 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) [2021-04-15 01:07:48,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:07:48,959 INFO L93 Difference]: Finished difference Result 6159 states and 17054 transitions. [2021-04-15 01:07:48,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-15 01:07:48,960 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 [2021-04-15 01:07:48,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:07:48,986 INFO L225 Difference]: With dead ends: 6159 [2021-04-15 01:07:48,987 INFO L226 Difference]: Without dead ends: 6159 [2021-04-15 01:07:48,988 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 67.3ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-04-15 01:07:49,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6159 states. [2021-04-15 01:07:49,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6159 to 6155. [2021-04-15 01:07:49,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6155 states, 6149 states have (on average 2.7728085867620753) internal successors, (17050), 6154 states have internal predecessors, (17050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:07:49,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6155 states to 6155 states and 17050 transitions. [2021-04-15 01:07:49,167 INFO L78 Accepts]: Start accepts. Automaton has 6155 states and 17050 transitions. Word has length 42 [2021-04-15 01:07:49,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:07:49,167 INFO L480 AbstractCegarLoop]: Abstraction has 6155 states and 17050 transitions. [2021-04-15 01:07:49,167 INFO L481 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) [2021-04-15 01:07:49,168 INFO L276 IsEmpty]: Start isEmpty. Operand 6155 states and 17050 transitions. [2021-04-15 01:07:49,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-04-15 01:07:49,171 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:07:49,171 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:07:49,171 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-15 01:07:49,171 INFO L428 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]=== [2021-04-15 01:07:49,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:07:49,172 INFO L82 PathProgramCache]: Analyzing trace with hash 2139493913, now seen corresponding path program 1 times [2021-04-15 01:07:49,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:07:49,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74562794] [2021-04-15 01:07:49,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:07:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:07:49,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:07:49,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74562794] [2021-04-15 01:07:49,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:07:49,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-15 01:07:49,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492628012] [2021-04-15 01:07:49,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-15 01:07:49,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:07:49,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-15 01:07:49,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-04-15 01:07:49,373 INFO L87 Difference]: Start difference. First operand 6155 states and 17050 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) [2021-04-15 01:07:49,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:07:49,718 INFO L93 Difference]: Finished difference Result 9142 states and 25280 transitions. [2021-04-15 01:07:49,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-15 01:07:49,718 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 [2021-04-15 01:07:49,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:07:49,763 INFO L225 Difference]: With dead ends: 9142 [2021-04-15 01:07:49,763 INFO L226 Difference]: Without dead ends: 9142 [2021-04-15 01:07:49,763 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 142.2ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-04-15 01:07:49,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9142 states. [2021-04-15 01:07:49,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9142 to 6937. [2021-04-15 01:07:49,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6932 states have (on average 2.774379688401616) internal successors, (19232), 6936 states have internal predecessors, (19232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:07:50,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 19232 transitions. [2021-04-15 01:07:50,018 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 19232 transitions. Word has length 60 [2021-04-15 01:07:50,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:07:50,020 INFO L480 AbstractCegarLoop]: Abstraction has 6937 states and 19232 transitions. [2021-04-15 01:07:50,020 INFO L481 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) [2021-04-15 01:07:50,020 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 19232 transitions. [2021-04-15 01:07:50,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-04-15 01:07:50,027 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:07:50,027 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:07:50,027 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-15 01:07:50,028 INFO L428 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]=== [2021-04-15 01:07:50,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:07:50,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1121519457, now seen corresponding path program 1 times [2021-04-15 01:07:50,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:07:50,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062923136] [2021-04-15 01:07:50,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:07:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:07:50,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:07:50,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062923136] [2021-04-15 01:07:50,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:07:50,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-15 01:07:50,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354240232] [2021-04-15 01:07:50,197 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-15 01:07:50,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:07:50,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-15 01:07:50,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-04-15 01:07:50,199 INFO L87 Difference]: Start difference. First operand 6937 states and 19232 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) [2021-04-15 01:07:50,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:07:50,460 INFO L93 Difference]: Finished difference Result 9924 states and 27315 transitions. [2021-04-15 01:07:50,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-15 01:07:50,460 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 [2021-04-15 01:07:50,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:07:50,482 INFO L225 Difference]: With dead ends: 9924 [2021-04-15 01:07:50,482 INFO L226 Difference]: Without dead ends: 8307 [2021-04-15 01:07:50,482 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 74.6ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-04-15 01:07:50,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8307 states. [2021-04-15 01:07:50,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8307 to 8013. [2021-04-15 01:07:50,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8013 states, 8009 states have (on average 2.7781246098139594) internal successors, (22250), 8012 states have internal predecessors, (22250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:07:50,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8013 states to 8013 states and 22250 transitions. [2021-04-15 01:07:50,715 INFO L78 Accepts]: Start accepts. Automaton has 8013 states and 22250 transitions. Word has length 66 [2021-04-15 01:07:50,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:07:50,716 INFO L480 AbstractCegarLoop]: Abstraction has 8013 states and 22250 transitions. [2021-04-15 01:07:50,716 INFO L481 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) [2021-04-15 01:07:50,716 INFO L276 IsEmpty]: Start isEmpty. Operand 8013 states and 22250 transitions. [2021-04-15 01:07:50,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-04-15 01:07:50,724 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:07:50,724 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:07:50,724 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-15 01:07:50,724 INFO L428 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]=== [2021-04-15 01:07:50,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:07:50,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1028415548, now seen corresponding path program 1 times [2021-04-15 01:07:50,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:07:50,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882301283] [2021-04-15 01:07:50,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:07:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:07:50,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:07:50,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882301283] [2021-04-15 01:07:50,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:07:50,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-15 01:07:50,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593486117] [2021-04-15 01:07:50,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-15 01:07:50,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:07:50,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-15 01:07:50,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-15 01:07:50,833 INFO L87 Difference]: Start difference. First operand 8013 states and 22250 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:07:50,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:07:50,875 INFO L93 Difference]: Finished difference Result 2799 states and 7505 transitions. [2021-04-15 01:07:50,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-15 01:07:50,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-04-15 01:07:50,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:07:50,882 INFO L225 Difference]: With dead ends: 2799 [2021-04-15 01:07:50,882 INFO L226 Difference]: Without dead ends: 2799 [2021-04-15 01:07:50,882 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 26.9ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-04-15 01:07:50,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2799 states. [2021-04-15 01:07:50,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2799 to 2799. [2021-04-15 01:07:50,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2799 states, 2797 states have (on average 2.6832320343224882) internal successors, (7505), 2798 states have internal predecessors, (7505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:07:50,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 7505 transitions. [2021-04-15 01:07:50,953 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 7505 transitions. Word has length 74 [2021-04-15 01:07:50,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:07:50,954 INFO L480 AbstractCegarLoop]: Abstraction has 2799 states and 7505 transitions. [2021-04-15 01:07:50,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:07:50,954 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 7505 transitions. [2021-04-15 01:07:50,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:07:50,964 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:07:50,964 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:07:50,964 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-15 01:07:50,964 INFO L428 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]=== [2021-04-15 01:07:50,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:07:50,965 INFO L82 PathProgramCache]: Analyzing trace with hash -40935166, now seen corresponding path program 1 times [2021-04-15 01:07:50,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:07:50,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565139331] [2021-04-15 01:07:50,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:07:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:07:51,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:07:51,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565139331] [2021-04-15 01:07:51,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:07:51,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-04-15 01:07:51,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807183008] [2021-04-15 01:07:51,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-15 01:07:51,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:07:51,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-15 01:07:51,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-04-15 01:07:51,556 INFO L87 Difference]: Start difference. First operand 2799 states and 7505 transitions. Second operand has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:07:52,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:07:52,491 INFO L93 Difference]: Finished difference Result 3863 states and 9943 transitions. [2021-04-15 01:07:52,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-04-15 01:07:52,492 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:07:52,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:07:52,500 INFO L225 Difference]: With dead ends: 3863 [2021-04-15 01:07:52,500 INFO L226 Difference]: Without dead ends: 3863 [2021-04-15 01:07:52,502 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 704.4ms TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2021-04-15 01:07:52,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3863 states. [2021-04-15 01:07:52,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3863 to 3423. [2021-04-15 01:07:52,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3423 states, 3421 states have (on average 2.641040631394329) internal successors, (9035), 3422 states have internal predecessors, (9035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:07:52,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3423 states to 3423 states and 9035 transitions. [2021-04-15 01:07:52,608 INFO L78 Accepts]: Start accepts. Automaton has 3423 states and 9035 transitions. Word has length 107 [2021-04-15 01:07:52,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:07:52,610 INFO L480 AbstractCegarLoop]: Abstraction has 3423 states and 9035 transitions. [2021-04-15 01:07:52,610 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:07:52,610 INFO L276 IsEmpty]: Start isEmpty. Operand 3423 states and 9035 transitions. [2021-04-15 01:07:52,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:07:52,623 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:07:52,623 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:07:52,623 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-15 01:07:52,623 INFO L428 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]=== [2021-04-15 01:07:52,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:07:52,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1098649440, now seen corresponding path program 2 times [2021-04-15 01:07:52,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:07:52,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100001095] [2021-04-15 01:07:52,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:07:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:07:53,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:07:53,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100001095] [2021-04-15 01:07:53,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:07:53,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:07:53,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092490402] [2021-04-15 01:07:53,217 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:07:53,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:07:53,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:07:53,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:07:53,218 INFO L87 Difference]: Start difference. First operand 3423 states and 9035 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:07:55,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:07:55,891 INFO L93 Difference]: Finished difference Result 7099 states and 17791 transitions. [2021-04-15 01:07:55,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 01:07:55,891 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:07:55,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:07:55,906 INFO L225 Difference]: With dead ends: 7099 [2021-04-15 01:07:55,906 INFO L226 Difference]: Without dead ends: 7099 [2021-04-15 01:07:55,907 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 2037.4ms TimeCoverageRelationStatistics Valid=461, Invalid=1345, Unknown=0, NotChecked=0, Total=1806 [2021-04-15 01:07:55,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7099 states. [2021-04-15 01:07:56,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7099 to 3740. [2021-04-15 01:07:56,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3740 states, 3738 states have (on average 2.630016051364366) internal successors, (9831), 3739 states have internal predecessors, (9831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:07:56,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3740 states to 3740 states and 9831 transitions. [2021-04-15 01:07:56,021 INFO L78 Accepts]: Start accepts. Automaton has 3740 states and 9831 transitions. Word has length 107 [2021-04-15 01:07:56,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:07:56,022 INFO L480 AbstractCegarLoop]: Abstraction has 3740 states and 9831 transitions. [2021-04-15 01:07:56,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:07:56,022 INFO L276 IsEmpty]: Start isEmpty. Operand 3740 states and 9831 transitions. [2021-04-15 01:07:56,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:07:56,030 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:07:56,030 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:07:56,030 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-15 01:07:56,030 INFO L428 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]=== [2021-04-15 01:07:56,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:07:56,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1599421898, now seen corresponding path program 3 times [2021-04-15 01:07:56,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:07:56,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903760235] [2021-04-15 01:07:56,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:07:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:07:56,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:07:56,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903760235] [2021-04-15 01:07:56,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:07:56,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:07:56,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988941992] [2021-04-15 01:07:56,530 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:07:56,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:07:56,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:07:56,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:07:56,530 INFO L87 Difference]: Start difference. First operand 3740 states and 9831 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:07:58,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:07:58,848 INFO L93 Difference]: Finished difference Result 6801 states and 17215 transitions. [2021-04-15 01:07:58,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 01:07:58,848 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:07:58,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:07:58,860 INFO L225 Difference]: With dead ends: 6801 [2021-04-15 01:07:58,861 INFO L226 Difference]: Without dead ends: 6801 [2021-04-15 01:07:58,861 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 1740.8ms TimeCoverageRelationStatistics Valid=472, Invalid=1334, Unknown=0, NotChecked=0, Total=1806 [2021-04-15 01:07:58,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6801 states. [2021-04-15 01:07:58,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6801 to 4290. [2021-04-15 01:07:58,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4290 states, 4288 states have (on average 2.6646455223880596) internal successors, (11426), 4289 states have internal predecessors, (11426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:07:58,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4290 states to 4290 states and 11426 transitions. [2021-04-15 01:07:58,963 INFO L78 Accepts]: Start accepts. Automaton has 4290 states and 11426 transitions. Word has length 107 [2021-04-15 01:07:58,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:07:58,964 INFO L480 AbstractCegarLoop]: Abstraction has 4290 states and 11426 transitions. [2021-04-15 01:07:58,964 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:07:58,964 INFO L276 IsEmpty]: Start isEmpty. Operand 4290 states and 11426 transitions. [2021-04-15 01:07:58,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:07:58,972 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:07:58,972 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:07:58,972 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-15 01:07:58,973 INFO L428 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]=== [2021-04-15 01:07:58,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:07:58,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1613012992, now seen corresponding path program 4 times [2021-04-15 01:07:58,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:07:58,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469494646] [2021-04-15 01:07:58,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:07:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:07:59,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:07:59,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469494646] [2021-04-15 01:07:59,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:07:59,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:07:59,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855380757] [2021-04-15 01:07:59,435 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:07:59,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:07:59,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:07:59,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:07:59,436 INFO L87 Difference]: Start difference. First operand 4290 states and 11426 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:01,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:01,031 INFO L93 Difference]: Finished difference Result 5839 states and 14876 transitions. [2021-04-15 01:08:01,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-04-15 01:08:01,032 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:01,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:01,042 INFO L225 Difference]: With dead ends: 5839 [2021-04-15 01:08:01,042 INFO L226 Difference]: Without dead ends: 5839 [2021-04-15 01:08:01,043 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 1190.6ms TimeCoverageRelationStatistics Valid=335, Invalid=997, Unknown=0, NotChecked=0, Total=1332 [2021-04-15 01:08:01,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5839 states. [2021-04-15 01:08:01,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5839 to 4290. [2021-04-15 01:08:01,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4290 states, 4288 states have (on average 2.6646455223880596) internal successors, (11426), 4289 states have internal predecessors, (11426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:01,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4290 states to 4290 states and 11426 transitions. [2021-04-15 01:08:01,149 INFO L78 Accepts]: Start accepts. Automaton has 4290 states and 11426 transitions. Word has length 107 [2021-04-15 01:08:01,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:01,150 INFO L480 AbstractCegarLoop]: Abstraction has 4290 states and 11426 transitions. [2021-04-15 01:08:01,151 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:01,151 INFO L276 IsEmpty]: Start isEmpty. Operand 4290 states and 11426 transitions. [2021-04-15 01:08:01,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:01,159 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:01,159 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:01,159 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-15 01:08:01,160 INFO L428 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]=== [2021-04-15 01:08:01,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:01,160 INFO L82 PathProgramCache]: Analyzing trace with hash 4783968, now seen corresponding path program 5 times [2021-04-15 01:08:01,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:01,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980345660] [2021-04-15 01:08:01,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:01,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:01,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:01,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980345660] [2021-04-15 01:08:01,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:01,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:01,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830046137] [2021-04-15 01:08:01,634 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:01,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:01,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:01,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:01,635 INFO L87 Difference]: Start difference. First operand 4290 states and 11426 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:03,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:03,201 INFO L93 Difference]: Finished difference Result 8469 states and 21713 transitions. [2021-04-15 01:08:03,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 01:08:03,201 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:03,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:03,216 INFO L225 Difference]: With dead ends: 8469 [2021-04-15 01:08:03,216 INFO L226 Difference]: Without dead ends: 8469 [2021-04-15 01:08:03,218 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1251.2ms TimeCoverageRelationStatistics Valid=323, Invalid=937, Unknown=0, NotChecked=0, Total=1260 [2021-04-15 01:08:03,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8469 states. [2021-04-15 01:08:03,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8469 to 4411. [2021-04-15 01:08:03,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4411 states, 4409 states have (on average 2.6713540485370832) internal successors, (11778), 4410 states have internal predecessors, (11778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:03,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4411 states to 4411 states and 11778 transitions. [2021-04-15 01:08:03,389 INFO L78 Accepts]: Start accepts. Automaton has 4411 states and 11778 transitions. Word has length 107 [2021-04-15 01:08:03,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:03,389 INFO L480 AbstractCegarLoop]: Abstraction has 4411 states and 11778 transitions. [2021-04-15 01:08:03,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:03,390 INFO L276 IsEmpty]: Start isEmpty. Operand 4411 states and 11778 transitions. [2021-04-15 01:08:03,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:03,399 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:03,399 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:03,399 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-15 01:08:03,399 INFO L428 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]=== [2021-04-15 01:08:03,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:03,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1601679926, now seen corresponding path program 6 times [2021-04-15 01:08:03,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:03,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437989389] [2021-04-15 01:08:03,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:03,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:03,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:03,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437989389] [2021-04-15 01:08:03,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:03,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:03,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603637922] [2021-04-15 01:08:03,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:03,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:03,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:03,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:03,858 INFO L87 Difference]: Start difference. First operand 4411 states and 11778 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:05,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:05,969 INFO L93 Difference]: Finished difference Result 10760 states and 27524 transitions. [2021-04-15 01:08:05,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-04-15 01:08:05,970 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:05,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:05,984 INFO L225 Difference]: With dead ends: 10760 [2021-04-15 01:08:05,984 INFO L226 Difference]: Without dead ends: 10760 [2021-04-15 01:08:05,985 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 1683.6ms TimeCoverageRelationStatistics Valid=437, Invalid=1203, Unknown=0, NotChecked=0, Total=1640 [2021-04-15 01:08:06,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10760 states. [2021-04-15 01:08:06,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10760 to 4301. [2021-04-15 01:08:06,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4301 states, 4299 states have (on average 2.665503605489649) internal successors, (11459), 4300 states have internal predecessors, (11459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:06,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 11459 transitions. [2021-04-15 01:08:06,105 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 11459 transitions. Word has length 107 [2021-04-15 01:08:06,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:06,106 INFO L480 AbstractCegarLoop]: Abstraction has 4301 states and 11459 transitions. [2021-04-15 01:08:06,106 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:06,106 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 11459 transitions. [2021-04-15 01:08:06,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:06,117 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:06,117 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:06,117 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-15 01:08:06,117 INFO L428 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]=== [2021-04-15 01:08:06,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:06,118 INFO L82 PathProgramCache]: Analyzing trace with hash -424962334, now seen corresponding path program 7 times [2021-04-15 01:08:06,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:06,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966121554] [2021-04-15 01:08:06,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:06,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:06,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966121554] [2021-04-15 01:08:06,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:06,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-04-15 01:08:06,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977990136] [2021-04-15 01:08:06,409 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-15 01:08:06,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:06,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-15 01:08:06,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-04-15 01:08:06,410 INFO L87 Difference]: Start difference. First operand 4301 states and 11459 transitions. Second operand has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:07,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:07,111 INFO L93 Difference]: Finished difference Result 5151 states and 13246 transitions. [2021-04-15 01:08:07,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-04-15 01:08:07,111 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:07,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:07,116 INFO L225 Difference]: With dead ends: 5151 [2021-04-15 01:08:07,116 INFO L226 Difference]: Without dead ends: 5151 [2021-04-15 01:08:07,116 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 561.8ms TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2021-04-15 01:08:07,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5151 states. [2021-04-15 01:08:07,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5151 to 4352. [2021-04-15 01:08:07,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4352 states, 4350 states have (on average 2.662528735632184) internal successors, (11582), 4351 states have internal predecessors, (11582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:07,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4352 states to 4352 states and 11582 transitions. [2021-04-15 01:08:07,200 INFO L78 Accepts]: Start accepts. Automaton has 4352 states and 11582 transitions. Word has length 107 [2021-04-15 01:08:07,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:07,200 INFO L480 AbstractCegarLoop]: Abstraction has 4352 states and 11582 transitions. [2021-04-15 01:08:07,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:07,201 INFO L276 IsEmpty]: Start isEmpty. Operand 4352 states and 11582 transitions. [2021-04-15 01:08:07,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:07,208 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:07,208 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:07,208 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-15 01:08:07,208 INFO L428 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]=== [2021-04-15 01:08:07,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:07,209 INFO L82 PathProgramCache]: Analyzing trace with hash 714622272, now seen corresponding path program 8 times [2021-04-15 01:08:07,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:07,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650230146] [2021-04-15 01:08:07,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:07,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:07,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650230146] [2021-04-15 01:08:07,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:07,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:07,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003488441] [2021-04-15 01:08:07,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:07,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:07,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:07,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:07,631 INFO L87 Difference]: Start difference. First operand 4352 states and 11582 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:09,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:09,071 INFO L93 Difference]: Finished difference Result 8105 states and 20580 transitions. [2021-04-15 01:08:09,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 01:08:09,071 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:09,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:09,080 INFO L225 Difference]: With dead ends: 8105 [2021-04-15 01:08:09,080 INFO L226 Difference]: Without dead ends: 8105 [2021-04-15 01:08:09,081 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1187.7ms TimeCoverageRelationStatistics Valid=312, Invalid=948, Unknown=0, NotChecked=0, Total=1260 [2021-04-15 01:08:09,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8105 states. [2021-04-15 01:08:09,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8105 to 4354. [2021-04-15 01:08:09,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4354 states, 4352 states have (on average 2.662454044117647) internal successors, (11587), 4353 states have internal predecessors, (11587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:09,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4354 states to 4354 states and 11587 transitions. [2021-04-15 01:08:09,190 INFO L78 Accepts]: Start accepts. Automaton has 4354 states and 11587 transitions. Word has length 107 [2021-04-15 01:08:09,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:09,190 INFO L480 AbstractCegarLoop]: Abstraction has 4354 states and 11587 transitions. [2021-04-15 01:08:09,190 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:09,190 INFO L276 IsEmpty]: Start isEmpty. Operand 4354 states and 11587 transitions. [2021-04-15 01:08:09,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:09,198 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:09,198 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:09,198 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-15 01:08:09,198 INFO L428 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]=== [2021-04-15 01:08:09,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:09,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1726787544, now seen corresponding path program 9 times [2021-04-15 01:08:09,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:09,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669584121] [2021-04-15 01:08:09,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:09,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:09,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669584121] [2021-04-15 01:08:09,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:09,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:09,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908761194] [2021-04-15 01:08:09,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:09,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:09,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:09,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:09,622 INFO L87 Difference]: Start difference. First operand 4354 states and 11587 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:10,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:10,958 INFO L93 Difference]: Finished difference Result 7970 states and 20312 transitions. [2021-04-15 01:08:10,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-04-15 01:08:10,959 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:10,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:10,964 INFO L225 Difference]: With dead ends: 7970 [2021-04-15 01:08:10,964 INFO L226 Difference]: Without dead ends: 7970 [2021-04-15 01:08:10,965 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1061.1ms TimeCoverageRelationStatistics Valid=288, Invalid=902, Unknown=0, NotChecked=0, Total=1190 [2021-04-15 01:08:10,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7970 states. [2021-04-15 01:08:11,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7970 to 4364. [2021-04-15 01:08:11,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4364 states, 4362 states have (on average 2.66208161393856) internal successors, (11612), 4363 states have internal predecessors, (11612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:11,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4364 states to 4364 states and 11612 transitions. [2021-04-15 01:08:11,050 INFO L78 Accepts]: Start accepts. Automaton has 4364 states and 11612 transitions. Word has length 107 [2021-04-15 01:08:11,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:11,050 INFO L480 AbstractCegarLoop]: Abstraction has 4364 states and 11612 transitions. [2021-04-15 01:08:11,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:11,050 INFO L276 IsEmpty]: Start isEmpty. Operand 4364 states and 11612 transitions. [2021-04-15 01:08:11,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:11,056 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:11,057 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:11,057 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-04-15 01:08:11,057 INFO L428 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]=== [2021-04-15 01:08:11,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:11,057 INFO L82 PathProgramCache]: Analyzing trace with hash -498465470, now seen corresponding path program 10 times [2021-04-15 01:08:11,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:11,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513898283] [2021-04-15 01:08:11,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:11,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:11,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513898283] [2021-04-15 01:08:11,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:11,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:11,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917409273] [2021-04-15 01:08:11,499 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:11,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:11,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:11,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:11,500 INFO L87 Difference]: Start difference. First operand 4364 states and 11612 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:13,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:13,018 INFO L93 Difference]: Finished difference Result 7625 states and 19564 transitions. [2021-04-15 01:08:13,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-04-15 01:08:13,018 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:13,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:13,025 INFO L225 Difference]: With dead ends: 7625 [2021-04-15 01:08:13,025 INFO L226 Difference]: Without dead ends: 7625 [2021-04-15 01:08:13,026 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1201.4ms TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2021-04-15 01:08:13,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7625 states. [2021-04-15 01:08:13,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7625 to 4419. [2021-04-15 01:08:13,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4419 states, 4417 states have (on average 2.6662893366538376) internal successors, (11777), 4418 states have internal predecessors, (11777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:13,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4419 states to 4419 states and 11777 transitions. [2021-04-15 01:08:13,115 INFO L78 Accepts]: Start accepts. Automaton has 4419 states and 11777 transitions. Word has length 107 [2021-04-15 01:08:13,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:13,115 INFO L480 AbstractCegarLoop]: Abstraction has 4419 states and 11777 transitions. [2021-04-15 01:08:13,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:13,115 INFO L276 IsEmpty]: Start isEmpty. Operand 4419 states and 11777 transitions. [2021-04-15 01:08:13,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:13,123 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:13,123 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:13,123 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-04-15 01:08:13,123 INFO L428 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]=== [2021-04-15 01:08:13,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:13,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1077179678, now seen corresponding path program 11 times [2021-04-15 01:08:13,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:13,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649023941] [2021-04-15 01:08:13,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:13,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:13,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649023941] [2021-04-15 01:08:13,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:13,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:13,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258666190] [2021-04-15 01:08:13,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:13,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:13,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:13,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:13,546 INFO L87 Difference]: Start difference. First operand 4419 states and 11777 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:15,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:15,111 INFO L93 Difference]: Finished difference Result 8261 states and 21238 transitions. [2021-04-15 01:08:15,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-04-15 01:08:15,111 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:15,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:15,119 INFO L225 Difference]: With dead ends: 8261 [2021-04-15 01:08:15,119 INFO L226 Difference]: Without dead ends: 8261 [2021-04-15 01:08:15,120 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1195.3ms TimeCoverageRelationStatistics Valid=290, Invalid=832, Unknown=0, NotChecked=0, Total=1122 [2021-04-15 01:08:15,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8261 states. [2021-04-15 01:08:15,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8261 to 4419. [2021-04-15 01:08:15,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4419 states, 4417 states have (on average 2.6662893366538376) internal successors, (11777), 4418 states have internal predecessors, (11777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:15,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4419 states to 4419 states and 11777 transitions. [2021-04-15 01:08:15,203 INFO L78 Accepts]: Start accepts. Automaton has 4419 states and 11777 transitions. Word has length 107 [2021-04-15 01:08:15,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:15,204 INFO L480 AbstractCegarLoop]: Abstraction has 4419 states and 11777 transitions. [2021-04-15 01:08:15,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:15,204 INFO L276 IsEmpty]: Start isEmpty. Operand 4419 states and 11777 transitions. [2021-04-15 01:08:15,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:15,212 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:15,212 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:15,212 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-04-15 01:08:15,212 INFO L428 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]=== [2021-04-15 01:08:15,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:15,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1886117794, now seen corresponding path program 12 times [2021-04-15 01:08:15,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:15,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888073880] [2021-04-15 01:08:15,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:15,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:15,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888073880] [2021-04-15 01:08:15,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:15,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:15,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013605589] [2021-04-15 01:08:15,590 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:15,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:15,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:15,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:15,591 INFO L87 Difference]: Start difference. First operand 4419 states and 11777 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:17,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:17,023 INFO L93 Difference]: Finished difference Result 5973 states and 15045 transitions. [2021-04-15 01:08:17,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-04-15 01:08:17,024 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:17,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:17,029 INFO L225 Difference]: With dead ends: 5973 [2021-04-15 01:08:17,029 INFO L226 Difference]: Without dead ends: 5973 [2021-04-15 01:08:17,029 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 1092.7ms TimeCoverageRelationStatistics Valid=324, Invalid=1008, Unknown=0, NotChecked=0, Total=1332 [2021-04-15 01:08:17,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5973 states. [2021-04-15 01:08:17,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5973 to 4401. [2021-04-15 01:08:17,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4401 states, 4399 states have (on average 2.6669697658558764) internal successors, (11732), 4400 states have internal predecessors, (11732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:17,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4401 states to 4401 states and 11732 transitions. [2021-04-15 01:08:17,100 INFO L78 Accepts]: Start accepts. Automaton has 4401 states and 11732 transitions. Word has length 107 [2021-04-15 01:08:17,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:17,100 INFO L480 AbstractCegarLoop]: Abstraction has 4401 states and 11732 transitions. [2021-04-15 01:08:17,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:17,101 INFO L276 IsEmpty]: Start isEmpty. Operand 4401 states and 11732 transitions. [2021-04-15 01:08:17,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:17,108 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:17,109 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:17,109 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-04-15 01:08:17,109 INFO L428 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]=== [2021-04-15 01:08:17,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:17,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1618981024, now seen corresponding path program 13 times [2021-04-15 01:08:17,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:17,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323422812] [2021-04-15 01:08:17,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:17,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:17,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323422812] [2021-04-15 01:08:17,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:17,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:17,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809422320] [2021-04-15 01:08:17,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:17,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:17,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:17,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:17,551 INFO L87 Difference]: Start difference. First operand 4401 states and 11732 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:18,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:18,982 INFO L93 Difference]: Finished difference Result 5945 states and 14975 transitions. [2021-04-15 01:08:18,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 01:08:18,982 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:18,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:18,987 INFO L225 Difference]: With dead ends: 5945 [2021-04-15 01:08:18,987 INFO L226 Difference]: Without dead ends: 5945 [2021-04-15 01:08:18,988 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1133.9ms TimeCoverageRelationStatistics Valid=301, Invalid=959, Unknown=0, NotChecked=0, Total=1260 [2021-04-15 01:08:18,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5945 states. [2021-04-15 01:08:19,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5945 to 4403. [2021-04-15 01:08:19,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4403 states, 4401 states have (on average 2.6668938877527832) internal successors, (11737), 4402 states have internal predecessors, (11737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:19,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4403 states to 4403 states and 11737 transitions. [2021-04-15 01:08:19,064 INFO L78 Accepts]: Start accepts. Automaton has 4403 states and 11737 transitions. Word has length 107 [2021-04-15 01:08:19,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:19,065 INFO L480 AbstractCegarLoop]: Abstraction has 4403 states and 11737 transitions. [2021-04-15 01:08:19,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:19,065 INFO L276 IsEmpty]: Start isEmpty. Operand 4403 states and 11737 transitions. [2021-04-15 01:08:19,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:19,072 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:19,073 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:19,073 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-04-15 01:08:19,073 INFO L428 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]=== [2021-04-15 01:08:19,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:19,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1663821000, now seen corresponding path program 14 times [2021-04-15 01:08:19,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:19,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830264972] [2021-04-15 01:08:19,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:19,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:19,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:19,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830264972] [2021-04-15 01:08:19,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:19,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:19,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099060765] [2021-04-15 01:08:19,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:19,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:19,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:19,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:19,492 INFO L87 Difference]: Start difference. First operand 4403 states and 11737 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:20,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:20,770 INFO L93 Difference]: Finished difference Result 5480 states and 13992 transitions. [2021-04-15 01:08:20,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-04-15 01:08:20,771 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:20,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:20,775 INFO L225 Difference]: With dead ends: 5480 [2021-04-15 01:08:20,775 INFO L226 Difference]: Without dead ends: 5480 [2021-04-15 01:08:20,776 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1051.3ms TimeCoverageRelationStatistics Valid=277, Invalid=913, Unknown=0, NotChecked=0, Total=1190 [2021-04-15 01:08:20,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5480 states. [2021-04-15 01:08:20,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5480 to 4401. [2021-04-15 01:08:20,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4401 states, 4399 states have (on average 2.6669697658558764) internal successors, (11732), 4400 states have internal predecessors, (11732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:20,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4401 states to 4401 states and 11732 transitions. [2021-04-15 01:08:20,872 INFO L78 Accepts]: Start accepts. Automaton has 4401 states and 11732 transitions. Word has length 107 [2021-04-15 01:08:20,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:20,872 INFO L480 AbstractCegarLoop]: Abstraction has 4401 states and 11732 transitions. [2021-04-15 01:08:20,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:20,872 INFO L276 IsEmpty]: Start isEmpty. Operand 4401 states and 11732 transitions. [2021-04-15 01:08:20,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:20,878 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:20,878 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:20,878 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-04-15 01:08:20,879 INFO L428 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]=== [2021-04-15 01:08:20,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:20,879 INFO L82 PathProgramCache]: Analyzing trace with hash 2143914428, now seen corresponding path program 15 times [2021-04-15 01:08:20,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:20,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122200541] [2021-04-15 01:08:20,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:20,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:21,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:21,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122200541] [2021-04-15 01:08:21,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:21,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:21,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823617409] [2021-04-15 01:08:21,250 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:21,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:21,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:21,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:21,251 INFO L87 Difference]: Start difference. First operand 4401 states and 11732 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:22,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:22,752 INFO L93 Difference]: Finished difference Result 6634 states and 16765 transitions. [2021-04-15 01:08:22,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 01:08:22,753 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:22,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:22,759 INFO L225 Difference]: With dead ends: 6634 [2021-04-15 01:08:22,759 INFO L226 Difference]: Without dead ends: 6634 [2021-04-15 01:08:22,760 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 1142.3ms TimeCoverageRelationStatistics Valid=324, Invalid=936, Unknown=0, NotChecked=0, Total=1260 [2021-04-15 01:08:22,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6634 states. [2021-04-15 01:08:22,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6634 to 4401. [2021-04-15 01:08:22,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4401 states, 4399 states have (on average 2.6669697658558764) internal successors, (11732), 4400 states have internal predecessors, (11732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:22,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4401 states to 4401 states and 11732 transitions. [2021-04-15 01:08:22,825 INFO L78 Accepts]: Start accepts. Automaton has 4401 states and 11732 transitions. Word has length 107 [2021-04-15 01:08:22,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:22,825 INFO L480 AbstractCegarLoop]: Abstraction has 4401 states and 11732 transitions. [2021-04-15 01:08:22,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:22,826 INFO L276 IsEmpty]: Start isEmpty. Operand 4401 states and 11732 transitions. [2021-04-15 01:08:22,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:22,830 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:22,830 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:22,830 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-04-15 01:08:22,830 INFO L428 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]=== [2021-04-15 01:08:22,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:22,830 INFO L82 PathProgramCache]: Analyzing trace with hash -554156910, now seen corresponding path program 16 times [2021-04-15 01:08:22,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:22,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989550365] [2021-04-15 01:08:22,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:22,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:23,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:23,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989550365] [2021-04-15 01:08:23,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:23,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:23,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288668842] [2021-04-15 01:08:23,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:23,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:23,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:23,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:23,254 INFO L87 Difference]: Start difference. First operand 4401 states and 11732 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:25,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:25,381 INFO L93 Difference]: Finished difference Result 8717 states and 22163 transitions. [2021-04-15 01:08:25,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-04-15 01:08:25,382 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:25,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:25,388 INFO L225 Difference]: With dead ends: 8717 [2021-04-15 01:08:25,389 INFO L226 Difference]: Without dead ends: 8717 [2021-04-15 01:08:25,389 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 1640.9ms TimeCoverageRelationStatistics Valid=438, Invalid=1202, Unknown=0, NotChecked=0, Total=1640 [2021-04-15 01:08:25,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8717 states. [2021-04-15 01:08:25,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8717 to 4291. [2021-04-15 01:08:25,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4291 states, 4289 states have (on average 2.6609932385171366) internal successors, (11413), 4290 states have internal predecessors, (11413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:25,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4291 states to 4291 states and 11413 transitions. [2021-04-15 01:08:25,458 INFO L78 Accepts]: Start accepts. Automaton has 4291 states and 11413 transitions. Word has length 107 [2021-04-15 01:08:25,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:25,459 INFO L480 AbstractCegarLoop]: Abstraction has 4291 states and 11413 transitions. [2021-04-15 01:08:25,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:25,459 INFO L276 IsEmpty]: Start isEmpty. Operand 4291 states and 11413 transitions. [2021-04-15 01:08:25,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:25,462 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:25,463 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:25,463 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-04-15 01:08:25,463 INFO L428 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]=== [2021-04-15 01:08:25,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:25,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1441214564, now seen corresponding path program 17 times [2021-04-15 01:08:25,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:25,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514283132] [2021-04-15 01:08:25,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:25,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:25,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514283132] [2021-04-15 01:08:25,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:25,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:25,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760315067] [2021-04-15 01:08:25,874 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:25,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:25,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:25,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:25,875 INFO L87 Difference]: Start difference. First operand 4291 states and 11413 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:27,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:27,392 INFO L93 Difference]: Finished difference Result 7424 states and 18903 transitions. [2021-04-15 01:08:27,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 01:08:27,392 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:27,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:27,399 INFO L225 Difference]: With dead ends: 7424 [2021-04-15 01:08:27,399 INFO L226 Difference]: Without dead ends: 7424 [2021-04-15 01:08:27,399 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 1118.3ms TimeCoverageRelationStatistics Valid=313, Invalid=947, Unknown=0, NotChecked=0, Total=1260 [2021-04-15 01:08:27,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7424 states. [2021-04-15 01:08:27,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7424 to 4285. [2021-04-15 01:08:27,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4285 states, 4283 states have (on average 2.661218771888863) internal successors, (11398), 4284 states have internal predecessors, (11398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:27,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4285 states to 4285 states and 11398 transitions. [2021-04-15 01:08:27,467 INFO L78 Accepts]: Start accepts. Automaton has 4285 states and 11398 transitions. Word has length 107 [2021-04-15 01:08:27,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:27,467 INFO L480 AbstractCegarLoop]: Abstraction has 4285 states and 11398 transitions. [2021-04-15 01:08:27,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:27,467 INFO L276 IsEmpty]: Start isEmpty. Operand 4285 states and 11398 transitions. [2021-04-15 01:08:27,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:27,471 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:27,471 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:27,471 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-04-15 01:08:27,471 INFO L428 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]=== [2021-04-15 01:08:27,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:27,472 INFO L82 PathProgramCache]: Analyzing trace with hash -429049292, now seen corresponding path program 18 times [2021-04-15 01:08:27,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:27,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595028385] [2021-04-15 01:08:27,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:27,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:27,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595028385] [2021-04-15 01:08:27,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:27,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:27,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205838760] [2021-04-15 01:08:27,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:27,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:27,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:27,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:27,899 INFO L87 Difference]: Start difference. First operand 4285 states and 11398 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:29,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:29,182 INFO L93 Difference]: Finished difference Result 7289 states and 18635 transitions. [2021-04-15 01:08:29,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-04-15 01:08:29,183 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:29,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:29,189 INFO L225 Difference]: With dead ends: 7289 [2021-04-15 01:08:29,190 INFO L226 Difference]: Without dead ends: 7289 [2021-04-15 01:08:29,190 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 992.7ms TimeCoverageRelationStatistics Valid=289, Invalid=901, Unknown=0, NotChecked=0, Total=1190 [2021-04-15 01:08:29,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7289 states. [2021-04-15 01:08:29,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7289 to 4283. [2021-04-15 01:08:29,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4283 states, 4281 states have (on average 2.6612940901658493) internal successors, (11393), 4282 states have internal predecessors, (11393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:29,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4283 states to 4283 states and 11393 transitions. [2021-04-15 01:08:29,256 INFO L78 Accepts]: Start accepts. Automaton has 4283 states and 11393 transitions. Word has length 107 [2021-04-15 01:08:29,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:29,256 INFO L480 AbstractCegarLoop]: Abstraction has 4283 states and 11393 transitions. [2021-04-15 01:08:29,256 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:29,257 INFO L276 IsEmpty]: Start isEmpty. Operand 4283 states and 11393 transitions. [2021-04-15 01:08:29,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:29,261 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:29,261 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:29,261 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-04-15 01:08:29,261 INFO L428 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]=== [2021-04-15 01:08:29,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:29,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1640664990, now seen corresponding path program 19 times [2021-04-15 01:08:29,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:29,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805755887] [2021-04-15 01:08:29,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:29,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:29,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805755887] [2021-04-15 01:08:29,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:29,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:29,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101308878] [2021-04-15 01:08:29,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:29,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:29,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:29,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:29,622 INFO L87 Difference]: Start difference. First operand 4283 states and 11393 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:30,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:30,977 INFO L93 Difference]: Finished difference Result 9446 states and 24269 transitions. [2021-04-15 01:08:30,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-04-15 01:08:30,977 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:30,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:30,986 INFO L225 Difference]: With dead ends: 9446 [2021-04-15 01:08:30,986 INFO L226 Difference]: Without dead ends: 9446 [2021-04-15 01:08:30,986 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1042.1ms TimeCoverageRelationStatistics Valid=300, Invalid=890, Unknown=0, NotChecked=0, Total=1190 [2021-04-15 01:08:31,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9446 states. [2021-04-15 01:08:31,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9446 to 4338. [2021-04-15 01:08:31,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4338 states, 4336 states have (on average 2.665590405904059) internal successors, (11558), 4337 states have internal predecessors, (11558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:31,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4338 states to 4338 states and 11558 transitions. [2021-04-15 01:08:31,086 INFO L78 Accepts]: Start accepts. Automaton has 4338 states and 11558 transitions. Word has length 107 [2021-04-15 01:08:31,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:31,086 INFO L480 AbstractCegarLoop]: Abstraction has 4338 states and 11558 transitions. [2021-04-15 01:08:31,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:31,086 INFO L276 IsEmpty]: Start isEmpty. Operand 4338 states and 11558 transitions. [2021-04-15 01:08:31,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:31,092 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:31,092 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:31,092 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-04-15 01:08:31,092 INFO L428 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]=== [2021-04-15 01:08:31,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:31,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1061950782, now seen corresponding path program 20 times [2021-04-15 01:08:31,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:31,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474935245] [2021-04-15 01:08:31,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:31,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:31,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474935245] [2021-04-15 01:08:31,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:31,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:31,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949437274] [2021-04-15 01:08:31,493 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:31,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:31,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:31,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:31,494 INFO L87 Difference]: Start difference. First operand 4338 states and 11558 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:32,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:32,958 INFO L93 Difference]: Finished difference Result 10052 states and 25868 transitions. [2021-04-15 01:08:32,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-04-15 01:08:32,959 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:32,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:32,968 INFO L225 Difference]: With dead ends: 10052 [2021-04-15 01:08:32,968 INFO L226 Difference]: Without dead ends: 10052 [2021-04-15 01:08:32,968 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1144.5ms TimeCoverageRelationStatistics Valid=291, Invalid=831, Unknown=0, NotChecked=0, Total=1122 [2021-04-15 01:08:32,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10052 states. [2021-04-15 01:08:33,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10052 to 4272. [2021-04-15 01:08:33,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4272 states, 4270 states have (on average 2.660421545667447) internal successors, (11360), 4271 states have internal predecessors, (11360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:33,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4272 states to 4272 states and 11360 transitions. [2021-04-15 01:08:33,040 INFO L78 Accepts]: Start accepts. Automaton has 4272 states and 11360 transitions. Word has length 107 [2021-04-15 01:08:33,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:33,040 INFO L480 AbstractCegarLoop]: Abstraction has 4272 states and 11360 transitions. [2021-04-15 01:08:33,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:33,041 INFO L276 IsEmpty]: Start isEmpty. Operand 4272 states and 11360 transitions. [2021-04-15 01:08:33,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:33,044 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:33,044 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:33,044 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-04-15 01:08:33,044 INFO L428 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]=== [2021-04-15 01:08:33,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:33,045 INFO L82 PathProgramCache]: Analyzing trace with hash -685553442, now seen corresponding path program 21 times [2021-04-15 01:08:33,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:33,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170657531] [2021-04-15 01:08:33,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:33,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:33,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170657531] [2021-04-15 01:08:33,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:33,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-04-15 01:08:33,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741748123] [2021-04-15 01:08:33,299 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-15 01:08:33,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:33,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-15 01:08:33,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-04-15 01:08:33,300 INFO L87 Difference]: Start difference. First operand 4272 states and 11360 transitions. Second operand has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:33,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:33,978 INFO L93 Difference]: Finished difference Result 4650 states and 12123 transitions. [2021-04-15 01:08:33,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 01:08:33,978 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:33,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:33,983 INFO L225 Difference]: With dead ends: 4650 [2021-04-15 01:08:33,983 INFO L226 Difference]: Without dead ends: 4650 [2021-04-15 01:08:33,983 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 497.4ms TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-04-15 01:08:33,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4650 states. [2021-04-15 01:08:34,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4650 to 4172. [2021-04-15 01:08:34,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4172 states, 4170 states have (on average 2.6685851318944844) internal successors, (11128), 4171 states have internal predecessors, (11128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:34,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4172 states to 4172 states and 11128 transitions. [2021-04-15 01:08:34,037 INFO L78 Accepts]: Start accepts. Automaton has 4172 states and 11128 transitions. Word has length 107 [2021-04-15 01:08:34,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:34,037 INFO L480 AbstractCegarLoop]: Abstraction has 4172 states and 11128 transitions. [2021-04-15 01:08:34,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:34,037 INFO L276 IsEmpty]: Start isEmpty. Operand 4172 states and 11128 transitions. [2021-04-15 01:08:34,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:34,041 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:34,042 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:34,042 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-04-15 01:08:34,042 INFO L428 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]=== [2021-04-15 01:08:34,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:34,042 INFO L82 PathProgramCache]: Analyzing trace with hash 454031164, now seen corresponding path program 22 times [2021-04-15 01:08:34,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:34,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820349718] [2021-04-15 01:08:34,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:34,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:34,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820349718] [2021-04-15 01:08:34,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:34,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:34,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514335340] [2021-04-15 01:08:34,476 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:34,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:34,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:34,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:34,476 INFO L87 Difference]: Start difference. First operand 4172 states and 11128 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:35,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:35,624 INFO L93 Difference]: Finished difference Result 5850 states and 14685 transitions. [2021-04-15 01:08:35,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 01:08:35,625 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:35,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:35,631 INFO L225 Difference]: With dead ends: 5850 [2021-04-15 01:08:35,631 INFO L226 Difference]: Without dead ends: 5850 [2021-04-15 01:08:35,631 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 895.2ms TimeCoverageRelationStatistics Valid=302, Invalid=958, Unknown=0, NotChecked=0, Total=1260 [2021-04-15 01:08:35,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5850 states. [2021-04-15 01:08:35,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5850 to 4180. [2021-04-15 01:08:35,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4180 states, 4178 states have (on average 2.668262326471996) internal successors, (11148), 4179 states have internal predecessors, (11148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:35,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4180 states to 4180 states and 11148 transitions. [2021-04-15 01:08:35,694 INFO L78 Accepts]: Start accepts. Automaton has 4180 states and 11148 transitions. Word has length 107 [2021-04-15 01:08:35,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:35,695 INFO L480 AbstractCegarLoop]: Abstraction has 4180 states and 11148 transitions. [2021-04-15 01:08:35,695 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:35,695 INFO L276 IsEmpty]: Start isEmpty. Operand 4180 states and 11148 transitions. [2021-04-15 01:08:35,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:35,700 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:35,700 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:35,700 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-04-15 01:08:35,701 INFO L428 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]=== [2021-04-15 01:08:35,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:35,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1466196436, now seen corresponding path program 23 times [2021-04-15 01:08:35,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:35,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992170480] [2021-04-15 01:08:35,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:36,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:36,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992170480] [2021-04-15 01:08:36,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:36,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:36,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377996460] [2021-04-15 01:08:36,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:36,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:36,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:36,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:36,121 INFO L87 Difference]: Start difference. First operand 4180 states and 11148 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:37,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:37,194 INFO L93 Difference]: Finished difference Result 6180 states and 15400 transitions. [2021-04-15 01:08:37,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-04-15 01:08:37,194 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:37,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:37,199 INFO L225 Difference]: With dead ends: 6180 [2021-04-15 01:08:37,200 INFO L226 Difference]: Without dead ends: 6180 [2021-04-15 01:08:37,200 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 831.2ms TimeCoverageRelationStatistics Valid=278, Invalid=912, Unknown=0, NotChecked=0, Total=1190 [2021-04-15 01:08:37,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6180 states. [2021-04-15 01:08:37,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6180 to 4178. [2021-04-15 01:08:37,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4178 states, 4176 states have (on average 2.6683429118773945) internal successors, (11143), 4177 states have internal predecessors, (11143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:37,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4178 states to 4178 states and 11143 transitions. [2021-04-15 01:08:37,250 INFO L78 Accepts]: Start accepts. Automaton has 4178 states and 11143 transitions. Word has length 107 [2021-04-15 01:08:37,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:37,250 INFO L480 AbstractCegarLoop]: Abstraction has 4178 states and 11143 transitions. [2021-04-15 01:08:37,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:37,250 INFO L276 IsEmpty]: Start isEmpty. Operand 4178 states and 11143 transitions. [2021-04-15 01:08:37,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:37,255 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:37,255 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:37,255 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-04-15 01:08:37,255 INFO L428 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]=== [2021-04-15 01:08:37,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:37,255 INFO L82 PathProgramCache]: Analyzing trace with hash 610882560, now seen corresponding path program 24 times [2021-04-15 01:08:37,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:37,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121887541] [2021-04-15 01:08:37,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:37,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:37,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:37,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121887541] [2021-04-15 01:08:37,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:37,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:37,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463365686] [2021-04-15 01:08:37,637 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:37,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:37,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:37,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:37,637 INFO L87 Difference]: Start difference. First operand 4178 states and 11143 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:38,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:38,709 INFO L93 Difference]: Finished difference Result 5788 states and 14586 transitions. [2021-04-15 01:08:38,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-04-15 01:08:38,710 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:38,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:38,715 INFO L225 Difference]: With dead ends: 5788 [2021-04-15 01:08:38,715 INFO L226 Difference]: Without dead ends: 5788 [2021-04-15 01:08:38,716 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 797.5ms TimeCoverageRelationStatistics Valid=278, Invalid=912, Unknown=0, NotChecked=0, Total=1190 [2021-04-15 01:08:38,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5788 states. [2021-04-15 01:08:38,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5788 to 4208. [2021-04-15 01:08:38,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4208 states, 4206 states have (on average 2.6671421778411792) internal successors, (11218), 4207 states have internal predecessors, (11218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:38,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4208 states to 4208 states and 11218 transitions. [2021-04-15 01:08:38,777 INFO L78 Accepts]: Start accepts. Automaton has 4208 states and 11218 transitions. Word has length 107 [2021-04-15 01:08:38,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:38,777 INFO L480 AbstractCegarLoop]: Abstraction has 4208 states and 11218 transitions. [2021-04-15 01:08:38,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:38,777 INFO L276 IsEmpty]: Start isEmpty. Operand 4208 states and 11218 transitions. [2021-04-15 01:08:38,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:38,781 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:38,782 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:38,782 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-04-15 01:08:38,782 INFO L428 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]=== [2021-04-15 01:08:38,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:38,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1112744300, now seen corresponding path program 25 times [2021-04-15 01:08:38,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:38,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198280159] [2021-04-15 01:08:38,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:39,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:39,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198280159] [2021-04-15 01:08:39,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:39,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:39,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896320197] [2021-04-15 01:08:39,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:39,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:39,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:39,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:39,139 INFO L87 Difference]: Start difference. First operand 4208 states and 11218 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:40,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:40,444 INFO L93 Difference]: Finished difference Result 6354 states and 16097 transitions. [2021-04-15 01:08:40,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-04-15 01:08:40,445 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:40,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:40,450 INFO L225 Difference]: With dead ends: 6354 [2021-04-15 01:08:40,451 INFO L226 Difference]: Without dead ends: 6354 [2021-04-15 01:08:40,451 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1069.7ms TimeCoverageRelationStatistics Valid=301, Invalid=889, Unknown=0, NotChecked=0, Total=1190 [2021-04-15 01:08:40,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6354 states. [2021-04-15 01:08:40,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6354 to 4208. [2021-04-15 01:08:40,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4208 states, 4206 states have (on average 2.6671421778411792) internal successors, (11218), 4207 states have internal predecessors, (11218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:40,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4208 states to 4208 states and 11218 transitions. [2021-04-15 01:08:40,505 INFO L78 Accepts]: Start accepts. Automaton has 4208 states and 11218 transitions. Word has length 107 [2021-04-15 01:08:40,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:40,506 INFO L480 AbstractCegarLoop]: Abstraction has 4208 states and 11218 transitions. [2021-04-15 01:08:40,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:40,506 INFO L276 IsEmpty]: Start isEmpty. Operand 4208 states and 11218 transitions. [2021-04-15 01:08:40,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:40,511 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:40,511 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:40,511 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-04-15 01:08:40,511 INFO L428 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]=== [2021-04-15 01:08:40,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:40,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1691458508, now seen corresponding path program 26 times [2021-04-15 01:08:40,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:40,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565882429] [2021-04-15 01:08:40,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:40,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:40,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:40,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565882429] [2021-04-15 01:08:40,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:40,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:40,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302368998] [2021-04-15 01:08:40,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:40,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:40,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:40,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:40,871 INFO L87 Difference]: Start difference. First operand 4208 states and 11218 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:42,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:42,237 INFO L93 Difference]: Finished difference Result 5898 states and 15142 transitions. [2021-04-15 01:08:42,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-04-15 01:08:42,237 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:42,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:42,242 INFO L225 Difference]: With dead ends: 5898 [2021-04-15 01:08:42,243 INFO L226 Difference]: Without dead ends: 5898 [2021-04-15 01:08:42,243 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1064.6ms TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2021-04-15 01:08:42,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5898 states. [2021-04-15 01:08:42,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5898 to 3218. [2021-04-15 01:08:42,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3218 states, 3216 states have (on average 2.6228233830845773) internal successors, (8435), 3217 states have internal predecessors, (8435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:42,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 8435 transitions. [2021-04-15 01:08:42,286 INFO L78 Accepts]: Start accepts. Automaton has 3218 states and 8435 transitions. Word has length 107 [2021-04-15 01:08:42,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:42,286 INFO L480 AbstractCegarLoop]: Abstraction has 3218 states and 8435 transitions. [2021-04-15 01:08:42,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:42,287 INFO L276 IsEmpty]: Start isEmpty. Operand 3218 states and 8435 transitions. [2021-04-15 01:08:42,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:42,289 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:42,289 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:42,289 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-04-15 01:08:42,289 INFO L428 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]=== [2021-04-15 01:08:42,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:42,290 INFO L82 PathProgramCache]: Analyzing trace with hash 347515862, now seen corresponding path program 27 times [2021-04-15 01:08:42,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:42,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379896198] [2021-04-15 01:08:42,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:42,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:42,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379896198] [2021-04-15 01:08:42,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:42,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:42,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797823032] [2021-04-15 01:08:42,672 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:42,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:42,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:42,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:42,672 INFO L87 Difference]: Start difference. First operand 3218 states and 8435 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:43,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:43,968 INFO L93 Difference]: Finished difference Result 4119 states and 10336 transitions. [2021-04-15 01:08:43,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-04-15 01:08:43,969 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:43,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:43,973 INFO L225 Difference]: With dead ends: 4119 [2021-04-15 01:08:43,973 INFO L226 Difference]: Without dead ends: 4119 [2021-04-15 01:08:43,973 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1062.4ms TimeCoverageRelationStatistics Valid=290, Invalid=900, Unknown=0, NotChecked=0, Total=1190 [2021-04-15 01:08:43,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4119 states. [2021-04-15 01:08:44,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4119 to 3218. [2021-04-15 01:08:44,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3218 states, 3216 states have (on average 2.6228233830845773) internal successors, (8435), 3217 states have internal predecessors, (8435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:44,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 8435 transitions. [2021-04-15 01:08:44,046 INFO L78 Accepts]: Start accepts. Automaton has 3218 states and 8435 transitions. Word has length 107 [2021-04-15 01:08:44,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:44,046 INFO L480 AbstractCegarLoop]: Abstraction has 3218 states and 8435 transitions. [2021-04-15 01:08:44,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:44,046 INFO L276 IsEmpty]: Start isEmpty. Operand 3218 states and 8435 transitions. [2021-04-15 01:08:44,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:44,049 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:44,049 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:44,049 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-04-15 01:08:44,049 INFO L428 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]=== [2021-04-15 01:08:44,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:44,049 INFO L82 PathProgramCache]: Analyzing trace with hash 144905376, now seen corresponding path program 28 times [2021-04-15 01:08:44,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:44,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113340120] [2021-04-15 01:08:44,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:44,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:44,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:44,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113340120] [2021-04-15 01:08:44,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:44,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:44,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853396521] [2021-04-15 01:08:44,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:44,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:44,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:44,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:44,455 INFO L87 Difference]: Start difference. First operand 3218 states and 8435 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:45,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:45,770 INFO L93 Difference]: Finished difference Result 4193 states and 10481 transitions. [2021-04-15 01:08:45,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-04-15 01:08:45,770 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:45,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:45,774 INFO L225 Difference]: With dead ends: 4193 [2021-04-15 01:08:45,774 INFO L226 Difference]: Without dead ends: 4193 [2021-04-15 01:08:45,774 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 962.5ms TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2021-04-15 01:08:45,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4193 states. [2021-04-15 01:08:45,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4193 to 3143. [2021-04-15 01:08:45,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3143 states, 3141 states have (on average 2.630054122890799) internal successors, (8261), 3142 states have internal predecessors, (8261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:45,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 8261 transitions. [2021-04-15 01:08:45,809 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 8261 transitions. Word has length 107 [2021-04-15 01:08:45,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:45,809 INFO L480 AbstractCegarLoop]: Abstraction has 3143 states and 8261 transitions. [2021-04-15 01:08:45,809 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:45,809 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 8261 transitions. [2021-04-15 01:08:45,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:45,812 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:45,812 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:45,812 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-04-15 01:08:45,812 INFO L428 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]=== [2021-04-15 01:08:45,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:45,812 INFO L82 PathProgramCache]: Analyzing trace with hash -644963102, now seen corresponding path program 29 times [2021-04-15 01:08:45,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:45,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621115092] [2021-04-15 01:08:45,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:46,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:46,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621115092] [2021-04-15 01:08:46,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:46,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:46,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001065261] [2021-04-15 01:08:46,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:46,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:46,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:46,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:46,167 INFO L87 Difference]: Start difference. First operand 3143 states and 8261 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:47,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:47,357 INFO L93 Difference]: Finished difference Result 4855 states and 11916 transitions. [2021-04-15 01:08:47,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-04-15 01:08:47,357 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:47,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:47,362 INFO L225 Difference]: With dead ends: 4855 [2021-04-15 01:08:47,362 INFO L226 Difference]: Without dead ends: 4855 [2021-04-15 01:08:47,362 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 852.0ms TimeCoverageRelationStatistics Valid=290, Invalid=970, Unknown=0, NotChecked=0, Total=1260 [2021-04-15 01:08:47,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4855 states. [2021-04-15 01:08:47,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4855 to 3145. [2021-04-15 01:08:47,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3145 states, 3143 states have (on average 2.6299713649379575) internal successors, (8266), 3144 states have internal predecessors, (8266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:47,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3145 states to 3145 states and 8266 transitions. [2021-04-15 01:08:47,417 INFO L78 Accepts]: Start accepts. Automaton has 3145 states and 8266 transitions. Word has length 107 [2021-04-15 01:08:47,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:47,417 INFO L480 AbstractCegarLoop]: Abstraction has 3145 states and 8266 transitions. [2021-04-15 01:08:47,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:47,417 INFO L276 IsEmpty]: Start isEmpty. Operand 3145 states and 8266 transitions. [2021-04-15 01:08:47,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:47,420 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:47,420 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:47,420 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-04-15 01:08:47,420 INFO L428 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]=== [2021-04-15 01:08:47,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:47,420 INFO L82 PathProgramCache]: Analyzing trace with hash 367202170, now seen corresponding path program 30 times [2021-04-15 01:08:47,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:47,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916848562] [2021-04-15 01:08:47,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:47,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:47,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:47,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916848562] [2021-04-15 01:08:47,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:47,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:47,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373789457] [2021-04-15 01:08:47,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:47,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:47,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:47,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:47,821 INFO L87 Difference]: Start difference. First operand 3145 states and 8266 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:48,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:48,904 INFO L93 Difference]: Finished difference Result 4390 states and 10933 transitions. [2021-04-15 01:08:48,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-04-15 01:08:48,904 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:48,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:48,908 INFO L225 Difference]: With dead ends: 4390 [2021-04-15 01:08:48,908 INFO L226 Difference]: Without dead ends: 4390 [2021-04-15 01:08:48,908 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 822.9ms TimeCoverageRelationStatistics Valid=266, Invalid=924, Unknown=0, NotChecked=0, Total=1190 [2021-04-15 01:08:48,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4390 states. [2021-04-15 01:08:48,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4390 to 3137. [2021-04-15 01:08:48,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3137 states, 3135 states have (on average 2.6303030303030304) internal successors, (8246), 3136 states have internal predecessors, (8246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:48,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3137 states to 3137 states and 8246 transitions. [2021-04-15 01:08:48,954 INFO L78 Accepts]: Start accepts. Automaton has 3137 states and 8246 transitions. Word has length 107 [2021-04-15 01:08:48,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:48,954 INFO L480 AbstractCegarLoop]: Abstraction has 3137 states and 8246 transitions. [2021-04-15 01:08:48,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:48,955 INFO L276 IsEmpty]: Start isEmpty. Operand 3137 states and 8246 transitions. [2021-04-15 01:08:48,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:48,958 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:48,958 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:48,958 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-04-15 01:08:48,958 INFO L428 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]=== [2021-04-15 01:08:48,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:48,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1575618596, now seen corresponding path program 31 times [2021-04-15 01:08:48,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:48,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806091162] [2021-04-15 01:08:48,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:49,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:49,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806091162] [2021-04-15 01:08:49,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:49,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:49,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878056986] [2021-04-15 01:08:49,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:49,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:49,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:49,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:49,329 INFO L87 Difference]: Start difference. First operand 3137 states and 8246 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:50,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:50,471 INFO L93 Difference]: Finished difference Result 4192 states and 10465 transitions. [2021-04-15 01:08:50,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-04-15 01:08:50,471 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:50,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:50,475 INFO L225 Difference]: With dead ends: 4192 [2021-04-15 01:08:50,475 INFO L226 Difference]: Without dead ends: 4192 [2021-04-15 01:08:50,476 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 865.8ms TimeCoverageRelationStatistics Valid=291, Invalid=969, Unknown=0, NotChecked=0, Total=1260 [2021-04-15 01:08:50,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4192 states. [2021-04-15 01:08:50,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4192 to 3112. [2021-04-15 01:08:50,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3112 states, 3110 states have (on average 2.6327974276527333) internal successors, (8188), 3111 states have internal predecessors, (8188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:50,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3112 states to 3112 states and 8188 transitions. [2021-04-15 01:08:50,518 INFO L78 Accepts]: Start accepts. Automaton has 3112 states and 8188 transitions. Word has length 107 [2021-04-15 01:08:50,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:50,519 INFO L480 AbstractCegarLoop]: Abstraction has 3112 states and 8188 transitions. [2021-04-15 01:08:50,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:50,519 INFO L276 IsEmpty]: Start isEmpty. Operand 3112 states and 8188 transitions. [2021-04-15 01:08:50,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:50,522 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:50,523 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:50,523 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-04-15 01:08:50,523 INFO L428 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]=== [2021-04-15 01:08:50,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:50,523 INFO L82 PathProgramCache]: Analyzing trace with hash -563453324, now seen corresponding path program 32 times [2021-04-15 01:08:50,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:50,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833855661] [2021-04-15 01:08:50,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:50,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:50,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:50,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833855661] [2021-04-15 01:08:50,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:50,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:50,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50611181] [2021-04-15 01:08:50,900 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:50,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:50,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:50,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:50,901 INFO L87 Difference]: Start difference. First operand 3112 states and 8188 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:51,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:51,985 INFO L93 Difference]: Finished difference Result 4522 states and 11180 transitions. [2021-04-15 01:08:51,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-04-15 01:08:51,985 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:51,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:51,989 INFO L225 Difference]: With dead ends: 4522 [2021-04-15 01:08:51,989 INFO L226 Difference]: Without dead ends: 4522 [2021-04-15 01:08:51,989 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 757.0ms TimeCoverageRelationStatistics Valid=267, Invalid=923, Unknown=0, NotChecked=0, Total=1190 [2021-04-15 01:08:51,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4522 states. [2021-04-15 01:08:52,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4522 to 3110. [2021-04-15 01:08:52,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3110 states, 3108 states have (on average 2.6328828828828827) internal successors, (8183), 3109 states have internal predecessors, (8183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:52,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3110 states to 3110 states and 8183 transitions. [2021-04-15 01:08:52,024 INFO L78 Accepts]: Start accepts. Automaton has 3110 states and 8183 transitions. Word has length 107 [2021-04-15 01:08:52,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:52,024 INFO L480 AbstractCegarLoop]: Abstraction has 3110 states and 8183 transitions. [2021-04-15 01:08:52,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:52,025 INFO L276 IsEmpty]: Start isEmpty. Operand 3110 states and 8183 transitions. [2021-04-15 01:08:52,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-04-15 01:08:52,028 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:52,028 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:52,028 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-04-15 01:08:52,029 INFO L428 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]=== [2021-04-15 01:08:52,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:52,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1418767200, now seen corresponding path program 33 times [2021-04-15 01:08:52,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:52,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489775626] [2021-04-15 01:08:52,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:52,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:52,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489775626] [2021-04-15 01:08:52,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:52,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-04-15 01:08:52,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225561592] [2021-04-15 01:08:52,376 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-04-15 01:08:52,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:52,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-04-15 01:08:52,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-04-15 01:08:52,377 INFO L87 Difference]: Start difference. First operand 3110 states and 8183 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:53,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:53,370 INFO L93 Difference]: Finished difference Result 3718 states and 9470 transitions. [2021-04-15 01:08:53,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-04-15 01:08:53,370 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-04-15 01:08:53,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:53,374 INFO L225 Difference]: With dead ends: 3718 [2021-04-15 01:08:53,374 INFO L226 Difference]: Without dead ends: 3718 [2021-04-15 01:08:53,374 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 781.6ms TimeCoverageRelationStatistics Valid=268, Invalid=922, Unknown=0, NotChecked=0, Total=1190 [2021-04-15 01:08:53,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3718 states. [2021-04-15 01:08:53,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3718 to 2797. [2021-04-15 01:08:53,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 2796 states have (on average 2.6834763948497855) internal successors, (7503), 2796 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) [2021-04-15 01:08:53,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 7503 transitions. [2021-04-15 01:08:53,406 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 7503 transitions. Word has length 107 [2021-04-15 01:08:53,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:53,406 INFO L480 AbstractCegarLoop]: Abstraction has 2797 states and 7503 transitions. [2021-04-15 01:08:53,406 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:53,406 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 7503 transitions. [2021-04-15 01:08:53,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:08:53,408 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:53,408 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:53,408 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-04-15 01:08:53,408 INFO L428 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]=== [2021-04-15 01:08:53,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:53,408 INFO L82 PathProgramCache]: Analyzing trace with hash -724445682, now seen corresponding path program 1 times [2021-04-15 01:08:53,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:53,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078141013] [2021-04-15 01:08:53,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:53,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:53,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078141013] [2021-04-15 01:08:53,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:53,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-04-15 01:08:53,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612345129] [2021-04-15 01:08:53,789 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-15 01:08:53,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:53,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-15 01:08:53,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-04-15 01:08:53,790 INFO L87 Difference]: Start difference. First operand 2797 states and 7503 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) [2021-04-15 01:08:54,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:54,369 INFO L93 Difference]: Finished difference Result 3217 states and 8547 transitions. [2021-04-15 01:08:54,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 01:08:54,369 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 [2021-04-15 01:08:54,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:54,372 INFO L225 Difference]: With dead ends: 3217 [2021-04-15 01:08:54,372 INFO L226 Difference]: Without dead ends: 3217 [2021-04-15 01:08:54,372 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 567.8ms TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2021-04-15 01:08:54,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3217 states. [2021-04-15 01:08:54,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3217 to 2953. [2021-04-15 01:08:54,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2952 states have (on average 2.6697154471544717) internal successors, (7881), 2952 states have internal predecessors, (7881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:54,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 7881 transitions. [2021-04-15 01:08:54,403 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 7881 transitions. Word has length 113 [2021-04-15 01:08:54,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:54,403 INFO L480 AbstractCegarLoop]: Abstraction has 2953 states and 7881 transitions. [2021-04-15 01:08:54,403 INFO L481 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) [2021-04-15 01:08:54,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 7881 transitions. [2021-04-15 01:08:54,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:08:54,405 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:54,405 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:54,405 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-04-15 01:08:54,406 INFO L428 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]=== [2021-04-15 01:08:54,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:54,406 INFO L82 PathProgramCache]: Analyzing trace with hash -865855892, now seen corresponding path program 2 times [2021-04-15 01:08:54,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:54,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219132856] [2021-04-15 01:08:54,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:55,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:55,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219132856] [2021-04-15 01:08:55,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:55,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:08:55,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362225635] [2021-04-15 01:08:55,223 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:08:55,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:55,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:08:55,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:08:55,223 INFO L87 Difference]: Start difference. First operand 2953 states and 7881 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:08:56,591 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-04-15 01:08:56,791 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2021-04-15 01:08:58,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:58,393 INFO L93 Difference]: Finished difference Result 3697 states and 9634 transitions. [2021-04-15 01:08:58,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-04-15 01:08:58,393 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:08:58,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:58,396 INFO L225 Difference]: With dead ends: 3697 [2021-04-15 01:08:58,396 INFO L226 Difference]: Without dead ends: 3494 [2021-04-15 01:08:58,397 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 2827.6ms TimeCoverageRelationStatistics Valid=579, Invalid=2613, Unknown=0, NotChecked=0, Total=3192 [2021-04-15 01:08:58,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3494 states. [2021-04-15 01:08:58,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3494 to 3051. [2021-04-15 01:08:58,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3051 states, 3050 states have (on average 2.6668852459016392) internal successors, (8134), 3050 states have internal predecessors, (8134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:58,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3051 states to 3051 states and 8134 transitions. [2021-04-15 01:08:58,428 INFO L78 Accepts]: Start accepts. Automaton has 3051 states and 8134 transitions. Word has length 113 [2021-04-15 01:08:58,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:58,428 INFO L480 AbstractCegarLoop]: Abstraction has 3051 states and 8134 transitions. [2021-04-15 01:08:58,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:08:58,429 INFO L276 IsEmpty]: Start isEmpty. Operand 3051 states and 8134 transitions. [2021-04-15 01:08:58,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:08:58,431 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:58,431 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:58,431 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-04-15 01:08:58,431 INFO L428 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]=== [2021-04-15 01:08:58,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:58,431 INFO L82 PathProgramCache]: Analyzing trace with hash 2075041588, now seen corresponding path program 1 times [2021-04-15 01:08:58,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:58,431 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028393882] [2021-04-15 01:08:58,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:58,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:58,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028393882] [2021-04-15 01:08:58,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:58,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-04-15 01:08:58,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435846365] [2021-04-15 01:08:58,536 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-15 01:08:58,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:58,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-15 01:08:58,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-04-15 01:08:58,536 INFO L87 Difference]: Start difference. First operand 3051 states and 8134 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 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) [2021-04-15 01:08:58,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:08:58,695 INFO L93 Difference]: Finished difference Result 3247 states and 8501 transitions. [2021-04-15 01:08:58,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-15 01:08:58,695 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 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 [2021-04-15 01:08:58,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:08:58,699 INFO L225 Difference]: With dead ends: 3247 [2021-04-15 01:08:58,699 INFO L226 Difference]: Without dead ends: 3247 [2021-04-15 01:08:58,699 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 72.2ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-04-15 01:08:58,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3247 states. [2021-04-15 01:08:58,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3247 to 3219. [2021-04-15 01:08:58,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3219 states, 3218 states have (on average 2.624922311995028) internal successors, (8447), 3218 states have internal predecessors, (8447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:08:58,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3219 states to 3219 states and 8447 transitions. [2021-04-15 01:08:58,746 INFO L78 Accepts]: Start accepts. Automaton has 3219 states and 8447 transitions. Word has length 113 [2021-04-15 01:08:58,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:08:58,746 INFO L480 AbstractCegarLoop]: Abstraction has 3219 states and 8447 transitions. [2021-04-15 01:08:58,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 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) [2021-04-15 01:08:58,746 INFO L276 IsEmpty]: Start isEmpty. Operand 3219 states and 8447 transitions. [2021-04-15 01:08:58,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:08:58,749 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:08:58,750 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:08:58,750 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-04-15 01:08:58,750 INFO L428 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]=== [2021-04-15 01:08:58,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:08:58,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1098078952, now seen corresponding path program 3 times [2021-04-15 01:08:58,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:08:58,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304874357] [2021-04-15 01:08:58,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:08:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:08:59,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:08:59,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304874357] [2021-04-15 01:08:59,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:08:59,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:08:59,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978158591] [2021-04-15 01:08:59,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:08:59,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:08:59,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:08:59,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:08:59,429 INFO L87 Difference]: Start difference. First operand 3219 states and 8447 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:09:00,330 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-04-15 01:09:00,791 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2021-04-15 01:09:01,966 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-04-15 01:09:02,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:09:02,700 INFO L93 Difference]: Finished difference Result 4078 states and 10346 transitions. [2021-04-15 01:09:02,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-04-15 01:09:02,701 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:09:02,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:09:02,706 INFO L225 Difference]: With dead ends: 4078 [2021-04-15 01:09:02,706 INFO L226 Difference]: Without dead ends: 3805 [2021-04-15 01:09:02,707 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 2846.9ms TimeCoverageRelationStatistics Valid=594, Invalid=2712, Unknown=0, NotChecked=0, Total=3306 [2021-04-15 01:09:02,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3805 states. [2021-04-15 01:09:02,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3805 to 3225. [2021-04-15 01:09:02,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3225 states, 3224 states have (on average 2.622518610421836) internal successors, (8455), 3224 states have internal predecessors, (8455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:09:02,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3225 states to 3225 states and 8455 transitions. [2021-04-15 01:09:02,741 INFO L78 Accepts]: Start accepts. Automaton has 3225 states and 8455 transitions. Word has length 113 [2021-04-15 01:09:02,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:09:02,741 INFO L480 AbstractCegarLoop]: Abstraction has 3225 states and 8455 transitions. [2021-04-15 01:09:02,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:09:02,741 INFO L276 IsEmpty]: Start isEmpty. Operand 3225 states and 8455 transitions. [2021-04-15 01:09:02,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:09:02,743 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:09:02,744 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:09:02,744 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-04-15 01:09:02,744 INFO L428 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]=== [2021-04-15 01:09:02,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:09:02,744 INFO L82 PathProgramCache]: Analyzing trace with hash -528453426, now seen corresponding path program 4 times [2021-04-15 01:09:02,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:09:02,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968560834] [2021-04-15 01:09:02,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:09:02,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:09:03,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:09:03,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968560834] [2021-04-15 01:09:03,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:09:03,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:09:03,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565508767] [2021-04-15 01:09:03,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:09:03,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:09:03,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:09:03,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:09:03,547 INFO L87 Difference]: Start difference. First operand 3225 states and 8455 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:09:04,999 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2021-04-15 01:09:05,156 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2021-04-15 01:09:05,768 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-04-15 01:09:07,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:09:07,076 INFO L93 Difference]: Finished difference Result 4042 states and 10272 transitions. [2021-04-15 01:09:07,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-04-15 01:09:07,077 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:09:07,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:09:07,080 INFO L225 Difference]: With dead ends: 4042 [2021-04-15 01:09:07,080 INFO L226 Difference]: Without dead ends: 3782 [2021-04-15 01:09:07,081 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 3041.6ms TimeCoverageRelationStatistics Valid=606, Invalid=2700, Unknown=0, NotChecked=0, Total=3306 [2021-04-15 01:09:07,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3782 states. [2021-04-15 01:09:07,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3782 to 3215. [2021-04-15 01:09:07,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3215 states, 3214 states have (on average 2.6253889234598633) internal successors, (8438), 3214 states have internal predecessors, (8438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:09:07,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 8438 transitions. [2021-04-15 01:09:07,118 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 8438 transitions. Word has length 113 [2021-04-15 01:09:07,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:09:07,118 INFO L480 AbstractCegarLoop]: Abstraction has 3215 states and 8438 transitions. [2021-04-15 01:09:07,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:09:07,118 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 8438 transitions. [2021-04-15 01:09:07,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:09:07,121 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:09:07,121 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:09:07,121 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-04-15 01:09:07,121 INFO L428 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]=== [2021-04-15 01:09:07,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:09:07,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1789626234, now seen corresponding path program 5 times [2021-04-15 01:09:07,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:09:07,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331787875] [2021-04-15 01:09:07,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:09:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:09:07,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:09:07,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331787875] [2021-04-15 01:09:07,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:09:07,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:09:07,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149495789] [2021-04-15 01:09:07,967 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:09:07,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:09:07,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:09:07,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:09:07,968 INFO L87 Difference]: Start difference. First operand 3215 states and 8438 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:09:08,975 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2021-04-15 01:09:09,334 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 62 [2021-04-15 01:09:09,500 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2021-04-15 01:09:10,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:09:10,987 INFO L93 Difference]: Finished difference Result 4117 states and 10543 transitions. [2021-04-15 01:09:10,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-04-15 01:09:10,987 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:09:10,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:09:10,991 INFO L225 Difference]: With dead ends: 4117 [2021-04-15 01:09:10,991 INFO L226 Difference]: Without dead ends: 3860 [2021-04-15 01:09:10,992 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 2762.3ms TimeCoverageRelationStatistics Valid=581, Invalid=2611, Unknown=0, NotChecked=0, Total=3192 [2021-04-15 01:09:11,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3860 states. [2021-04-15 01:09:11,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3860 to 3391. [2021-04-15 01:09:11,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3391 states, 3390 states have (on average 2.643952802359882) internal successors, (8963), 3390 states have internal predecessors, (8963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:09:11,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3391 states to 3391 states and 8963 transitions. [2021-04-15 01:09:11,030 INFO L78 Accepts]: Start accepts. Automaton has 3391 states and 8963 transitions. Word has length 113 [2021-04-15 01:09:11,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:09:11,030 INFO L480 AbstractCegarLoop]: Abstraction has 3391 states and 8963 transitions. [2021-04-15 01:09:11,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:09:11,030 INFO L276 IsEmpty]: Start isEmpty. Operand 3391 states and 8963 transitions. [2021-04-15 01:09:11,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:09:11,033 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:09:11,033 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:09:11,033 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-04-15 01:09:11,033 INFO L428 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]=== [2021-04-15 01:09:11,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:09:11,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1815142278, now seen corresponding path program 6 times [2021-04-15 01:09:11,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:09:11,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601752506] [2021-04-15 01:09:11,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:09:11,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:09:11,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:09:11,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601752506] [2021-04-15 01:09:11,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:09:11,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:09:11,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67953810] [2021-04-15 01:09:11,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:09:11,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:09:11,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:09:11,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:09:11,918 INFO L87 Difference]: Start difference. First operand 3391 states and 8963 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:09:12,935 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2021-04-15 01:09:13,181 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-04-15 01:09:15,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:09:15,036 INFO L93 Difference]: Finished difference Result 5165 states and 13379 transitions. [2021-04-15 01:09:15,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-04-15 01:09:15,037 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:09:15,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:09:15,041 INFO L225 Difference]: With dead ends: 5165 [2021-04-15 01:09:15,042 INFO L226 Difference]: Without dead ends: 4774 [2021-04-15 01:09:15,042 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 2867.6ms TimeCoverageRelationStatistics Valid=622, Invalid=2918, Unknown=0, NotChecked=0, Total=3540 [2021-04-15 01:09:15,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4774 states. [2021-04-15 01:09:15,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4774 to 3743. [2021-04-15 01:09:15,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3743 states, 3742 states have (on average 2.639230358097274) internal successors, (9876), 3742 states have internal predecessors, (9876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:09:15,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3743 states to 3743 states and 9876 transitions. [2021-04-15 01:09:15,086 INFO L78 Accepts]: Start accepts. Automaton has 3743 states and 9876 transitions. Word has length 113 [2021-04-15 01:09:15,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:09:15,086 INFO L480 AbstractCegarLoop]: Abstraction has 3743 states and 9876 transitions. [2021-04-15 01:09:15,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:09:15,086 INFO L276 IsEmpty]: Start isEmpty. Operand 3743 states and 9876 transitions. [2021-04-15 01:09:15,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:09:15,089 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:09:15,089 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:09:15,089 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-04-15 01:09:15,089 INFO L428 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]=== [2021-04-15 01:09:15,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:09:15,089 INFO L82 PathProgramCache]: Analyzing trace with hash 204857820, now seen corresponding path program 7 times [2021-04-15 01:09:15,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:09:15,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361666545] [2021-04-15 01:09:15,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:09:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:09:16,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:09:16,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361666545] [2021-04-15 01:09:16,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:09:16,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:09:16,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878734877] [2021-04-15 01:09:16,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:09:16,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:09:16,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:09:16,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:09:16,045 INFO L87 Difference]: Start difference. First operand 3743 states and 9876 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:09:17,099 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2021-04-15 01:09:17,352 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-04-15 01:09:19,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:09:19,448 INFO L93 Difference]: Finished difference Result 4905 states and 12642 transitions. [2021-04-15 01:09:19,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-04-15 01:09:19,449 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:09:19,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:09:19,453 INFO L225 Difference]: With dead ends: 4905 [2021-04-15 01:09:19,453 INFO L226 Difference]: Without dead ends: 4719 [2021-04-15 01:09:19,454 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 692 ImplicationChecksByTransitivity, 3137.0ms TimeCoverageRelationStatistics Valid=643, Invalid=3139, Unknown=0, NotChecked=0, Total=3782 [2021-04-15 01:09:19,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4719 states. [2021-04-15 01:09:19,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4719 to 3688. [2021-04-15 01:09:19,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3688 states, 3687 states have (on average 2.6368321128288583) internal successors, (9722), 3687 states have internal predecessors, (9722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:09:19,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3688 states to 3688 states and 9722 transitions. [2021-04-15 01:09:19,532 INFO L78 Accepts]: Start accepts. Automaton has 3688 states and 9722 transitions. Word has length 113 [2021-04-15 01:09:19,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:09:19,532 INFO L480 AbstractCegarLoop]: Abstraction has 3688 states and 9722 transitions. [2021-04-15 01:09:19,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:09:19,532 INFO L276 IsEmpty]: Start isEmpty. Operand 3688 states and 9722 transitions. [2021-04-15 01:09:19,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:09:19,535 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:09:19,535 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:09:19,535 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-04-15 01:09:19,535 INFO L428 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]=== [2021-04-15 01:09:19,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:09:19,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1647520908, now seen corresponding path program 8 times [2021-04-15 01:09:19,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:09:19,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054559456] [2021-04-15 01:09:19,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:09:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:09:20,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:09:20,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054559456] [2021-04-15 01:09:20,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:09:20,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:09:20,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689646174] [2021-04-15 01:09:20,497 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:09:20,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:09:20,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:09:20,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:09:20,498 INFO L87 Difference]: Start difference. First operand 3688 states and 9722 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:09:21,611 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2021-04-15 01:09:21,893 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-04-15 01:09:24,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:09:24,052 INFO L93 Difference]: Finished difference Result 4917 states and 12613 transitions. [2021-04-15 01:09:24,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-04-15 01:09:24,052 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:09:24,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:09:24,055 INFO L225 Difference]: With dead ends: 4917 [2021-04-15 01:09:24,056 INFO L226 Difference]: Without dead ends: 4480 [2021-04-15 01:09:24,056 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 3024.9ms TimeCoverageRelationStatistics Valid=583, Invalid=2957, Unknown=0, NotChecked=0, Total=3540 [2021-04-15 01:09:24,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4480 states. [2021-04-15 01:09:24,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4480 to 3446. [2021-04-15 01:09:24,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3446 states, 3445 states have (on average 2.630478955007257) internal successors, (9062), 3445 states have internal predecessors, (9062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:09:24,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3446 states to 3446 states and 9062 transitions. [2021-04-15 01:09:24,097 INFO L78 Accepts]: Start accepts. Automaton has 3446 states and 9062 transitions. Word has length 113 [2021-04-15 01:09:24,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:09:24,097 INFO L480 AbstractCegarLoop]: Abstraction has 3446 states and 9062 transitions. [2021-04-15 01:09:24,097 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:09:24,097 INFO L276 IsEmpty]: Start isEmpty. Operand 3446 states and 9062 transitions. [2021-04-15 01:09:24,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:09:24,100 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:09:24,100 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:09:24,100 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-04-15 01:09:24,100 INFO L428 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]=== [2021-04-15 01:09:24,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:09:24,100 INFO L82 PathProgramCache]: Analyzing trace with hash 840247244, now seen corresponding path program 9 times [2021-04-15 01:09:24,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:09:24,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964970930] [2021-04-15 01:09:24,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:09:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:09:25,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:09:25,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964970930] [2021-04-15 01:09:25,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:09:25,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:09:25,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823797389] [2021-04-15 01:09:25,083 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:09:25,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:09:25,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:09:25,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:09:25,084 INFO L87 Difference]: Start difference. First operand 3446 states and 9062 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:09:26,090 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2021-04-15 01:09:26,338 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-04-15 01:09:26,701 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2021-04-15 01:09:27,143 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-04-15 01:09:28,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:09:28,221 INFO L93 Difference]: Finished difference Result 4226 states and 10861 transitions. [2021-04-15 01:09:28,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-04-15 01:09:28,221 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:09:28,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:09:28,225 INFO L225 Difference]: With dead ends: 4226 [2021-04-15 01:09:28,225 INFO L226 Difference]: Without dead ends: 3985 [2021-04-15 01:09:28,225 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 3006.7ms TimeCoverageRelationStatistics Valid=632, Invalid=2908, Unknown=0, NotChecked=0, Total=3540 [2021-04-15 01:09:28,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3985 states. [2021-04-15 01:09:28,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3985 to 3402. [2021-04-15 01:09:28,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3402 states, 3401 states have (on average 2.63304910320494) internal successors, (8955), 3401 states have internal predecessors, (8955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:09:28,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3402 states to 3402 states and 8955 transitions. [2021-04-15 01:09:28,266 INFO L78 Accepts]: Start accepts. Automaton has 3402 states and 8955 transitions. Word has length 113 [2021-04-15 01:09:28,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:09:28,266 INFO L480 AbstractCegarLoop]: Abstraction has 3402 states and 8955 transitions. [2021-04-15 01:09:28,266 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:09:28,266 INFO L276 IsEmpty]: Start isEmpty. Operand 3402 states and 8955 transitions. [2021-04-15 01:09:28,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:09:28,269 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:09:28,269 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:09:28,269 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-04-15 01:09:28,269 INFO L428 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]=== [2021-04-15 01:09:28,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:09:28,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1867863444, now seen corresponding path program 10 times [2021-04-15 01:09:28,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:09:28,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122465909] [2021-04-15 01:09:28,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:09:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:09:29,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:09:29,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122465909] [2021-04-15 01:09:29,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:09:29,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:09:29,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930860058] [2021-04-15 01:09:29,129 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:09:29,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:09:29,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:09:29,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:09:29,129 INFO L87 Difference]: Start difference. First operand 3402 states and 8955 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:09:32,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:09:32,556 INFO L93 Difference]: Finished difference Result 4988 states and 12772 transitions. [2021-04-15 01:09:32,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-04-15 01:09:32,556 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:09:32,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:09:32,560 INFO L225 Difference]: With dead ends: 4988 [2021-04-15 01:09:32,560 INFO L226 Difference]: Without dead ends: 4774 [2021-04-15 01:09:32,560 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 3114.5ms TimeCoverageRelationStatistics Valid=624, Invalid=3158, Unknown=0, NotChecked=0, Total=3782 [2021-04-15 01:09:32,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4774 states. [2021-04-15 01:09:32,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4774 to 3501. [2021-04-15 01:09:32,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3501 states, 3500 states have (on average 2.6382857142857143) internal successors, (9234), 3500 states have internal predecessors, (9234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:09:32,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3501 states to 3501 states and 9234 transitions. [2021-04-15 01:09:32,604 INFO L78 Accepts]: Start accepts. Automaton has 3501 states and 9234 transitions. Word has length 113 [2021-04-15 01:09:32,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:09:32,604 INFO L480 AbstractCegarLoop]: Abstraction has 3501 states and 9234 transitions. [2021-04-15 01:09:32,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:09:32,605 INFO L276 IsEmpty]: Start isEmpty. Operand 3501 states and 9234 transitions. [2021-04-15 01:09:32,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:09:32,607 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:09:32,608 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:09:32,608 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-04-15 01:09:32,608 INFO L428 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]=== [2021-04-15 01:09:32,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:09:32,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1777850046, now seen corresponding path program 11 times [2021-04-15 01:09:32,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:09:32,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734088904] [2021-04-15 01:09:32,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:09:32,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:09:33,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:09:33,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734088904] [2021-04-15 01:09:33,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:09:33,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:09:33,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964116145] [2021-04-15 01:09:33,495 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:09:33,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:09:33,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:09:33,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:09:33,496 INFO L87 Difference]: Start difference. First operand 3501 states and 9234 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:09:34,602 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-04-15 01:09:36,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:09:36,804 INFO L93 Difference]: Finished difference Result 5465 states and 14103 transitions. [2021-04-15 01:09:36,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-04-15 01:09:36,804 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:09:36,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:09:36,809 INFO L225 Difference]: With dead ends: 5465 [2021-04-15 01:09:36,809 INFO L226 Difference]: Without dead ends: 5074 [2021-04-15 01:09:36,810 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 646 ImplicationChecksByTransitivity, 3041.3ms TimeCoverageRelationStatistics Valid=653, Invalid=3007, Unknown=0, NotChecked=0, Total=3660 [2021-04-15 01:09:36,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5074 states. [2021-04-15 01:09:36,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5074 to 3798. [2021-04-15 01:09:36,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3798 states, 3797 states have (on average 2.6318145904661576) internal successors, (9993), 3797 states have internal predecessors, (9993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:09:36,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3798 states to 3798 states and 9993 transitions. [2021-04-15 01:09:36,856 INFO L78 Accepts]: Start accepts. Automaton has 3798 states and 9993 transitions. Word has length 113 [2021-04-15 01:09:36,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:09:36,856 INFO L480 AbstractCegarLoop]: Abstraction has 3798 states and 9993 transitions. [2021-04-15 01:09:36,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:09:36,856 INFO L276 IsEmpty]: Start isEmpty. Operand 3798 states and 9993 transitions. [2021-04-15 01:09:36,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:09:36,859 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:09:36,859 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:09:36,859 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-04-15 01:09:36,859 INFO L428 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]=== [2021-04-15 01:09:36,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:09:36,860 INFO L82 PathProgramCache]: Analyzing trace with hash -569424682, now seen corresponding path program 12 times [2021-04-15 01:09:36,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:09:36,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301030463] [2021-04-15 01:09:36,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:09:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:09:37,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:09:37,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301030463] [2021-04-15 01:09:37,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:09:37,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:09:37,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998885978] [2021-04-15 01:09:37,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:09:37,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:09:37,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:09:37,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:09:37,764 INFO L87 Difference]: Start difference. First operand 3798 states and 9993 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:09:41,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:09:41,180 INFO L93 Difference]: Finished difference Result 5205 states and 13366 transitions. [2021-04-15 01:09:41,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-04-15 01:09:41,181 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:09:41,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:09:41,185 INFO L225 Difference]: With dead ends: 5205 [2021-04-15 01:09:41,185 INFO L226 Difference]: Without dead ends: 5019 [2021-04-15 01:09:41,186 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 698 ImplicationChecksByTransitivity, 3209.1ms TimeCoverageRelationStatistics Valid=677, Invalid=3229, Unknown=0, NotChecked=0, Total=3906 [2021-04-15 01:09:41,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5019 states. [2021-04-15 01:09:41,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5019 to 3743. [2021-04-15 01:09:41,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3743 states, 3742 states have (on average 2.6293425975414215) internal successors, (9839), 3742 states have internal predecessors, (9839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:09:41,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3743 states to 3743 states and 9839 transitions. [2021-04-15 01:09:41,231 INFO L78 Accepts]: Start accepts. Automaton has 3743 states and 9839 transitions. Word has length 113 [2021-04-15 01:09:41,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:09:41,231 INFO L480 AbstractCegarLoop]: Abstraction has 3743 states and 9839 transitions. [2021-04-15 01:09:41,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:09:41,231 INFO L276 IsEmpty]: Start isEmpty. Operand 3743 states and 9839 transitions. [2021-04-15 01:09:41,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:09:41,235 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:09:41,235 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:09:41,235 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-04-15 01:09:41,235 INFO L428 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]=== [2021-04-15 01:09:41,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:09:41,235 INFO L82 PathProgramCache]: Analyzing trace with hash -924391384, now seen corresponding path program 13 times [2021-04-15 01:09:41,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:09:41,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202068721] [2021-04-15 01:09:41,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:09:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:09:42,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:09:42,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202068721] [2021-04-15 01:09:42,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:09:42,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:09:42,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664174820] [2021-04-15 01:09:42,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:09:42,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:09:42,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:09:42,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:09:42,156 INFO L87 Difference]: Start difference. First operand 3743 states and 9839 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:09:45,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:09:45,477 INFO L93 Difference]: Finished difference Result 5100 states and 13125 transitions. [2021-04-15 01:09:45,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-04-15 01:09:45,477 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:09:45,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:09:45,482 INFO L225 Difference]: With dead ends: 5100 [2021-04-15 01:09:45,482 INFO L226 Difference]: Without dead ends: 4586 [2021-04-15 01:09:45,482 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 2947.3ms TimeCoverageRelationStatistics Valid=566, Invalid=2740, Unknown=0, NotChecked=0, Total=3306 [2021-04-15 01:09:45,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4586 states. [2021-04-15 01:09:45,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4586 to 3424. [2021-04-15 01:09:45,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3424 states, 3423 states have (on average 2.628980426526439) internal successors, (8999), 3423 states have internal predecessors, (8999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:09:45,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3424 states to 3424 states and 8999 transitions. [2021-04-15 01:09:45,525 INFO L78 Accepts]: Start accepts. Automaton has 3424 states and 8999 transitions. Word has length 113 [2021-04-15 01:09:45,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:09:45,525 INFO L480 AbstractCegarLoop]: Abstraction has 3424 states and 8999 transitions. [2021-04-15 01:09:45,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:09:45,525 INFO L276 IsEmpty]: Start isEmpty. Operand 3424 states and 8999 transitions. [2021-04-15 01:09:45,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:09:45,528 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:09:45,528 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:09:45,528 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-04-15 01:09:45,528 INFO L428 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]=== [2021-04-15 01:09:45,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:09:45,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1149247878, now seen corresponding path program 14 times [2021-04-15 01:09:45,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:09:45,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912244737] [2021-04-15 01:09:45,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:09:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:09:46,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:09:46,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912244737] [2021-04-15 01:09:46,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:09:46,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:09:46,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703285156] [2021-04-15 01:09:46,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:09:46,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:09:46,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:09:46,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:09:46,429 INFO L87 Difference]: Start difference. First operand 3424 states and 8999 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:09:49,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:09:49,928 INFO L93 Difference]: Finished difference Result 4281 states and 10942 transitions. [2021-04-15 01:09:49,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-04-15 01:09:49,928 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:09:49,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:09:49,931 INFO L225 Difference]: With dead ends: 4281 [2021-04-15 01:09:49,931 INFO L226 Difference]: Without dead ends: 4067 [2021-04-15 01:09:49,931 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 722 ImplicationChecksByTransitivity, 3060.2ms TimeCoverageRelationStatistics Valid=672, Invalid=3110, Unknown=0, NotChecked=0, Total=3782 [2021-04-15 01:09:49,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4067 states. [2021-04-15 01:09:49,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4067 to 3428. [2021-04-15 01:09:49,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3428 states, 3427 states have (on average 2.6276626787277504) internal successors, (9005), 3427 states have internal predecessors, (9005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:09:49,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3428 states to 3428 states and 9005 transitions. [2021-04-15 01:09:49,969 INFO L78 Accepts]: Start accepts. Automaton has 3428 states and 9005 transitions. Word has length 113 [2021-04-15 01:09:49,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:09:49,969 INFO L480 AbstractCegarLoop]: Abstraction has 3428 states and 9005 transitions. [2021-04-15 01:09:49,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:09:49,970 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 9005 transitions. [2021-04-15 01:09:49,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:09:49,972 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:09:49,972 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:09:49,972 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-04-15 01:09:49,972 INFO L428 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]=== [2021-04-15 01:09:49,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:09:49,973 INFO L82 PathProgramCache]: Analyzing trace with hash -32144044, now seen corresponding path program 15 times [2021-04-15 01:09:49,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:09:49,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769926275] [2021-04-15 01:09:49,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:09:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:09:50,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:09:50,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769926275] [2021-04-15 01:09:50,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:09:50,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:09:50,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168702991] [2021-04-15 01:09:50,816 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:09:50,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:09:50,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:09:50,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:09:50,817 INFO L87 Difference]: Start difference. First operand 3428 states and 9005 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:09:52,413 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-04-15 01:09:52,933 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-04-15 01:09:54,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:09:54,245 INFO L93 Difference]: Finished difference Result 4240 states and 10851 transitions. [2021-04-15 01:09:54,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-04-15 01:09:54,245 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:09:54,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:09:54,248 INFO L225 Difference]: With dead ends: 4240 [2021-04-15 01:09:54,248 INFO L226 Difference]: Without dead ends: 4041 [2021-04-15 01:09:54,249 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 3048.0ms TimeCoverageRelationStatistics Valid=662, Invalid=2998, Unknown=0, NotChecked=0, Total=3660 [2021-04-15 01:09:54,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4041 states. [2021-04-15 01:09:54,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4041 to 3424. [2021-04-15 01:09:54,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3424 states, 3423 states have (on average 2.628688285130003) internal successors, (8998), 3423 states have internal predecessors, (8998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:09:54,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3424 states to 3424 states and 8998 transitions. [2021-04-15 01:09:54,287 INFO L78 Accepts]: Start accepts. Automaton has 3424 states and 8998 transitions. Word has length 113 [2021-04-15 01:09:54,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:09:54,287 INFO L480 AbstractCegarLoop]: Abstraction has 3424 states and 8998 transitions. [2021-04-15 01:09:54,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:09:54,287 INFO L276 IsEmpty]: Start isEmpty. Operand 3424 states and 8998 transitions. [2021-04-15 01:09:54,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:09:54,290 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:09:54,290 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:09:54,290 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-04-15 01:09:54,291 INFO L428 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]=== [2021-04-15 01:09:54,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:09:54,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1507369560, now seen corresponding path program 16 times [2021-04-15 01:09:54,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:09:54,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547358214] [2021-04-15 01:09:54,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:09:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:09:55,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:09:55,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547358214] [2021-04-15 01:09:55,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:09:55,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:09:55,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792741224] [2021-04-15 01:09:55,132 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:09:55,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:09:55,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:09:55,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:09:55,133 INFO L87 Difference]: Start difference. First operand 3424 states and 8998 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:09:56,405 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-04-15 01:09:58,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:09:58,557 INFO L93 Difference]: Finished difference Result 5298 states and 13617 transitions. [2021-04-15 01:09:58,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-04-15 01:09:58,558 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:09:58,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:09:58,562 INFO L225 Difference]: With dead ends: 5298 [2021-04-15 01:09:58,562 INFO L226 Difference]: Without dead ends: 4907 [2021-04-15 01:09:58,562 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 3041.1ms TimeCoverageRelationStatistics Valid=651, Invalid=3009, Unknown=0, NotChecked=0, Total=3660 [2021-04-15 01:09:58,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4907 states. [2021-04-15 01:09:58,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4907 to 3776. [2021-04-15 01:09:58,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3776 states, 3775 states have (on average 2.625430463576159) internal successors, (9911), 3775 states have internal predecessors, (9911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:09:58,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3776 states to 3776 states and 9911 transitions. [2021-04-15 01:09:58,604 INFO L78 Accepts]: Start accepts. Automaton has 3776 states and 9911 transitions. Word has length 113 [2021-04-15 01:09:58,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:09:58,605 INFO L480 AbstractCegarLoop]: Abstraction has 3776 states and 9911 transitions. [2021-04-15 01:09:58,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:09:58,605 INFO L276 IsEmpty]: Start isEmpty. Operand 3776 states and 9911 transitions. [2021-04-15 01:09:58,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:09:58,608 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:09:58,608 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:09:58,608 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-04-15 01:09:58,608 INFO L428 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]=== [2021-04-15 01:09:58,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:09:58,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1177313278, now seen corresponding path program 17 times [2021-04-15 01:09:58,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:09:58,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427017818] [2021-04-15 01:09:58,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:09:58,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:09:59,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:09:59,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427017818] [2021-04-15 01:09:59,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:09:59,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:09:59,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067450430] [2021-04-15 01:09:59,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:09:59,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:09:59,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:09:59,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:09:59,553 INFO L87 Difference]: Start difference. First operand 3776 states and 9911 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:10:00,727 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-04-15 01:10:00,898 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-04-15 01:10:03,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:10:03,331 INFO L93 Difference]: Finished difference Result 5038 states and 12880 transitions. [2021-04-15 01:10:03,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-04-15 01:10:03,332 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:10:03,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:10:03,336 INFO L225 Difference]: With dead ends: 5038 [2021-04-15 01:10:03,337 INFO L226 Difference]: Without dead ends: 4852 [2021-04-15 01:10:03,337 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 3376.9ms TimeCoverageRelationStatistics Valid=674, Invalid=3232, Unknown=0, NotChecked=0, Total=3906 [2021-04-15 01:10:03,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4852 states. [2021-04-15 01:10:03,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4852 to 3721. [2021-04-15 01:10:03,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3721 states, 3720 states have (on average 2.6228494623655916) internal successors, (9757), 3720 states have internal predecessors, (9757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:10:03,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3721 states to 3721 states and 9757 transitions. [2021-04-15 01:10:03,385 INFO L78 Accepts]: Start accepts. Automaton has 3721 states and 9757 transitions. Word has length 113 [2021-04-15 01:10:03,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:10:03,385 INFO L480 AbstractCegarLoop]: Abstraction has 3721 states and 9757 transitions. [2021-04-15 01:10:03,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:10:03,385 INFO L276 IsEmpty]: Start isEmpty. Operand 3721 states and 9757 transitions. [2021-04-15 01:10:03,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:10:03,388 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:10:03,388 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:10:03,388 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-04-15 01:10:03,388 INFO L428 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]=== [2021-04-15 01:10:03,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:10:03,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1674990930, now seen corresponding path program 18 times [2021-04-15 01:10:03,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:10:03,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489340062] [2021-04-15 01:10:03,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:10:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:10:04,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:10:04,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489340062] [2021-04-15 01:10:04,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:10:04,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:10:04,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649591772] [2021-04-15 01:10:04,260 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:10:04,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:10:04,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:10:04,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:10:04,261 INFO L87 Difference]: Start difference. First operand 3721 states and 9757 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:10:05,659 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-04-15 01:10:06,728 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-04-15 01:10:08,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:10:08,081 INFO L93 Difference]: Finished difference Result 5050 states and 12851 transitions. [2021-04-15 01:10:08,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-04-15 01:10:08,082 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:10:08,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:10:08,086 INFO L225 Difference]: With dead ends: 5050 [2021-04-15 01:10:08,086 INFO L226 Difference]: Without dead ends: 4613 [2021-04-15 01:10:08,087 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 3132.3ms TimeCoverageRelationStatistics Valid=610, Invalid=3050, Unknown=0, NotChecked=0, Total=3660 [2021-04-15 01:10:08,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4613 states. [2021-04-15 01:10:08,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4613 to 3479. [2021-04-15 01:10:08,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3479 states, 3478 states have (on average 2.6155836687751584) internal successors, (9097), 3478 states have internal predecessors, (9097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:10:08,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3479 states to 3479 states and 9097 transitions. [2021-04-15 01:10:08,129 INFO L78 Accepts]: Start accepts. Automaton has 3479 states and 9097 transitions. Word has length 113 [2021-04-15 01:10:08,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:10:08,129 INFO L480 AbstractCegarLoop]: Abstraction has 3479 states and 9097 transitions. [2021-04-15 01:10:08,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:10:08,129 INFO L276 IsEmpty]: Start isEmpty. Operand 3479 states and 9097 transitions. [2021-04-15 01:10:08,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:10:08,132 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:10:08,132 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:10:08,132 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-04-15 01:10:08,132 INFO L428 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]=== [2021-04-15 01:10:08,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:10:08,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1812702702, now seen corresponding path program 19 times [2021-04-15 01:10:08,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:10:08,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307043360] [2021-04-15 01:10:08,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:10:08,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:10:08,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:10:08,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307043360] [2021-04-15 01:10:08,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:10:08,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:10:08,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272898398] [2021-04-15 01:10:08,989 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:10:08,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:10:08,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:10:08,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:10:08,989 INFO L87 Difference]: Start difference. First operand 3479 states and 9097 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:10:10,327 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-04-15 01:10:10,852 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2021-04-15 01:10:12,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:10:12,627 INFO L93 Difference]: Finished difference Result 4341 states and 11060 transitions. [2021-04-15 01:10:12,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-04-15 01:10:12,627 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:10:12,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:10:12,630 INFO L225 Difference]: With dead ends: 4341 [2021-04-15 01:10:12,630 INFO L226 Difference]: Without dead ends: 4089 [2021-04-15 01:10:12,631 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 3073.8ms TimeCoverageRelationStatistics Valid=662, Invalid=2998, Unknown=0, NotChecked=0, Total=3660 [2021-04-15 01:10:12,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4089 states. [2021-04-15 01:10:12,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4089 to 3380. [2021-04-15 01:10:12,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3380 states, 3379 states have (on average 2.6282923941994674) internal successors, (8881), 3379 states have internal predecessors, (8881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:10:12,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3380 states to 3380 states and 8881 transitions. [2021-04-15 01:10:12,668 INFO L78 Accepts]: Start accepts. Automaton has 3380 states and 8881 transitions. Word has length 113 [2021-04-15 01:10:12,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:10:12,668 INFO L480 AbstractCegarLoop]: Abstraction has 3380 states and 8881 transitions. [2021-04-15 01:10:12,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:10:12,668 INFO L276 IsEmpty]: Start isEmpty. Operand 3380 states and 8881 transitions. [2021-04-15 01:10:12,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:10:12,673 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:10:12,673 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:10:12,673 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-04-15 01:10:12,673 INFO L428 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]=== [2021-04-15 01:10:12,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:10:12,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1444122868, now seen corresponding path program 20 times [2021-04-15 01:10:12,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:10:12,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209236817] [2021-04-15 01:10:12,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:10:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:10:13,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:10:13,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209236817] [2021-04-15 01:10:13,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:10:13,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:10:13,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030104767] [2021-04-15 01:10:13,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:10:13,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:10:13,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:10:13,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:10:13,422 INFO L87 Difference]: Start difference. First operand 3380 states and 8881 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:10:14,870 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-04-15 01:10:15,121 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2021-04-15 01:10:15,275 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-04-15 01:10:15,910 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-04-15 01:10:16,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:10:16,883 INFO L93 Difference]: Finished difference Result 4034 states and 10217 transitions. [2021-04-15 01:10:16,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-04-15 01:10:16,884 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:10:16,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:10:16,887 INFO L225 Difference]: With dead ends: 4034 [2021-04-15 01:10:16,887 INFO L226 Difference]: Without dead ends: 3777 [2021-04-15 01:10:16,887 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 2915.8ms TimeCoverageRelationStatistics Valid=579, Invalid=2613, Unknown=0, NotChecked=0, Total=3192 [2021-04-15 01:10:16,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3777 states. [2021-04-15 01:10:16,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3777 to 3423. [2021-04-15 01:10:16,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3423 states, 3422 states have (on average 2.623904149620105) internal successors, (8979), 3422 states have internal predecessors, (8979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:10:16,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3423 states to 3423 states and 8979 transitions. [2021-04-15 01:10:16,923 INFO L78 Accepts]: Start accepts. Automaton has 3423 states and 8979 transitions. Word has length 113 [2021-04-15 01:10:16,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:10:16,923 INFO L480 AbstractCegarLoop]: Abstraction has 3423 states and 8979 transitions. [2021-04-15 01:10:16,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:10:16,923 INFO L276 IsEmpty]: Start isEmpty. Operand 3423 states and 8979 transitions. [2021-04-15 01:10:16,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:10:16,926 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:10:16,926 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:10:16,926 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-04-15 01:10:16,926 INFO L428 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]=== [2021-04-15 01:10:16,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:10:16,927 INFO L82 PathProgramCache]: Analyzing trace with hash 519811976, now seen corresponding path program 21 times [2021-04-15 01:10:16,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:10:16,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515228709] [2021-04-15 01:10:16,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:10:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:10:17,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:10:17,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515228709] [2021-04-15 01:10:17,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:10:17,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:10:17,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555454108] [2021-04-15 01:10:17,694 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:10:17,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:10:17,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:10:17,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:10:17,695 INFO L87 Difference]: Start difference. First operand 3423 states and 8979 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:10:18,962 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-04-15 01:10:19,171 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2021-04-15 01:10:19,669 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2021-04-15 01:10:19,963 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2021-04-15 01:10:21,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:10:21,222 INFO L93 Difference]: Finished difference Result 4115 states and 10364 transitions. [2021-04-15 01:10:21,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-04-15 01:10:21,222 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:10:21,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:10:21,226 INFO L225 Difference]: With dead ends: 4115 [2021-04-15 01:10:21,226 INFO L226 Difference]: Without dead ends: 3842 [2021-04-15 01:10:21,226 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 3034.4ms TimeCoverageRelationStatistics Valid=594, Invalid=2712, Unknown=0, NotChecked=0, Total=3306 [2021-04-15 01:10:21,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3842 states. [2021-04-15 01:10:21,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3842 to 3429. [2021-04-15 01:10:21,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3429 states, 3428 states have (on average 2.621645274212369) internal successors, (8987), 3428 states have internal predecessors, (8987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:10:21,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3429 states to 3429 states and 8987 transitions. [2021-04-15 01:10:21,270 INFO L78 Accepts]: Start accepts. Automaton has 3429 states and 8987 transitions. Word has length 113 [2021-04-15 01:10:21,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:10:21,270 INFO L480 AbstractCegarLoop]: Abstraction has 3429 states and 8987 transitions. [2021-04-15 01:10:21,270 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:10:21,270 INFO L276 IsEmpty]: Start isEmpty. Operand 3429 states and 8987 transitions. [2021-04-15 01:10:21,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:10:21,273 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:10:21,274 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:10:21,274 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-04-15 01:10:21,274 INFO L428 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]=== [2021-04-15 01:10:21,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:10:21,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1106720402, now seen corresponding path program 22 times [2021-04-15 01:10:21,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:10:21,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908261349] [2021-04-15 01:10:21,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:10:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:10:22,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:10:22,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908261349] [2021-04-15 01:10:22,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:10:22,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:10:22,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348165462] [2021-04-15 01:10:22,017 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:10:22,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:10:22,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:10:22,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:10:22,017 INFO L87 Difference]: Start difference. First operand 3429 states and 8987 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:10:23,242 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-04-15 01:10:23,468 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2021-04-15 01:10:23,643 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2021-04-15 01:10:24,181 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-04-15 01:10:25,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:10:25,505 INFO L93 Difference]: Finished difference Result 4049 states and 10226 transitions. [2021-04-15 01:10:25,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-04-15 01:10:25,506 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:10:25,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:10:25,509 INFO L225 Difference]: With dead ends: 4049 [2021-04-15 01:10:25,509 INFO L226 Difference]: Without dead ends: 3789 [2021-04-15 01:10:25,509 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 3032.7ms TimeCoverageRelationStatistics Valid=606, Invalid=2700, Unknown=0, NotChecked=0, Total=3306 [2021-04-15 01:10:25,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3789 states. [2021-04-15 01:10:25,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3789 to 3407. [2021-04-15 01:10:25,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3407 states, 3406 states have (on average 2.6247798003523193) internal successors, (8940), 3406 states have internal predecessors, (8940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:10:25,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3407 states to 3407 states and 8940 transitions. [2021-04-15 01:10:25,550 INFO L78 Accepts]: Start accepts. Automaton has 3407 states and 8940 transitions. Word has length 113 [2021-04-15 01:10:25,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:10:25,550 INFO L480 AbstractCegarLoop]: Abstraction has 3407 states and 8940 transitions. [2021-04-15 01:10:25,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:10:25,551 INFO L276 IsEmpty]: Start isEmpty. Operand 3407 states and 8940 transitions. [2021-04-15 01:10:25,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:10:25,554 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:10:25,554 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:10:25,554 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-04-15 01:10:25,554 INFO L428 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]=== [2021-04-15 01:10:25,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:10:25,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1978071410, now seen corresponding path program 23 times [2021-04-15 01:10:25,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:10:25,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923333876] [2021-04-15 01:10:25,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:10:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:10:26,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:10:26,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923333876] [2021-04-15 01:10:26,226 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:10:26,226 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:10:26,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985188536] [2021-04-15 01:10:26,226 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:10:26,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:10:26,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:10:26,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:10:26,226 INFO L87 Difference]: Start difference. First operand 3407 states and 8940 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:10:28,082 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2021-04-15 01:10:28,229 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2021-04-15 01:10:28,591 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 64 [2021-04-15 01:10:29,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:10:29,440 INFO L93 Difference]: Finished difference Result 4077 states and 10267 transitions. [2021-04-15 01:10:29,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-04-15 01:10:29,444 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:10:29,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:10:29,448 INFO L225 Difference]: With dead ends: 4077 [2021-04-15 01:10:29,448 INFO L226 Difference]: Without dead ends: 3820 [2021-04-15 01:10:29,448 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 2685.0ms TimeCoverageRelationStatistics Valid=538, Invalid=2542, Unknown=0, NotChecked=0, Total=3080 [2021-04-15 01:10:29,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3820 states. [2021-04-15 01:10:29,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3820 to 3416. [2021-04-15 01:10:29,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3416 states, 3415 states have (on average 2.621376281112738) internal successors, (8952), 3415 states have internal predecessors, (8952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:10:29,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3416 states to 3416 states and 8952 transitions. [2021-04-15 01:10:29,486 INFO L78 Accepts]: Start accepts. Automaton has 3416 states and 8952 transitions. Word has length 113 [2021-04-15 01:10:29,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:10:29,486 INFO L480 AbstractCegarLoop]: Abstraction has 3416 states and 8952 transitions. [2021-04-15 01:10:29,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:10:29,486 INFO L276 IsEmpty]: Start isEmpty. Operand 3416 states and 8952 transitions. [2021-04-15 01:10:29,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:10:29,489 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:10:29,489 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:10:29,489 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-04-15 01:10:29,489 INFO L428 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]=== [2021-04-15 01:10:29,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:10:29,489 INFO L82 PathProgramCache]: Analyzing trace with hash -858856636, now seen corresponding path program 24 times [2021-04-15 01:10:29,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:10:29,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282742415] [2021-04-15 01:10:29,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:10:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:10:30,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:10:30,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282742415] [2021-04-15 01:10:30,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:10:30,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:10:30,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315061644] [2021-04-15 01:10:30,273 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:10:30,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:10:30,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:10:30,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:10:30,273 INFO L87 Difference]: Start difference. First operand 3416 states and 8952 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:10:31,583 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2021-04-15 01:10:32,015 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-04-15 01:10:32,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:10:32,951 INFO L93 Difference]: Finished difference Result 3836 states and 9789 transitions. [2021-04-15 01:10:32,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-04-15 01:10:32,951 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:10:32,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:10:32,955 INFO L225 Difference]: With dead ends: 3836 [2021-04-15 01:10:32,955 INFO L226 Difference]: Without dead ends: 3639 [2021-04-15 01:10:32,955 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 2567.1ms TimeCoverageRelationStatistics Valid=451, Invalid=2201, Unknown=0, NotChecked=0, Total=2652 [2021-04-15 01:10:32,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3639 states. [2021-04-15 01:10:32,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3639 to 3419. [2021-04-15 01:10:32,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3419 states, 3418 states have (on average 2.620245757753072) internal successors, (8956), 3418 states have internal predecessors, (8956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:10:32,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3419 states to 3419 states and 8956 transitions. [2021-04-15 01:10:32,994 INFO L78 Accepts]: Start accepts. Automaton has 3419 states and 8956 transitions. Word has length 113 [2021-04-15 01:10:32,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:10:32,994 INFO L480 AbstractCegarLoop]: Abstraction has 3419 states and 8956 transitions. [2021-04-15 01:10:32,994 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:10:32,994 INFO L276 IsEmpty]: Start isEmpty. Operand 3419 states and 8956 transitions. [2021-04-15 01:10:32,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:10:32,997 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:10:32,997 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:10:32,997 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-04-15 01:10:32,997 INFO L428 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]=== [2021-04-15 01:10:32,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:10:32,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1809578282, now seen corresponding path program 25 times [2021-04-15 01:10:32,998 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:10:32,998 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775583694] [2021-04-15 01:10:32,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:10:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:10:33,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:10:33,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775583694] [2021-04-15 01:10:33,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:10:33,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:10:33,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199052876] [2021-04-15 01:10:33,705 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:10:33,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:10:33,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:10:33,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:10:33,706 INFO L87 Difference]: Start difference. First operand 3419 states and 8956 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:10:35,054 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2021-04-15 01:10:35,214 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2021-04-15 01:10:35,442 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-04-15 01:10:36,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:10:36,321 INFO L93 Difference]: Finished difference Result 3740 states and 9596 transitions. [2021-04-15 01:10:36,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 01:10:36,322 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:10:36,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:10:36,325 INFO L225 Difference]: With dead ends: 3740 [2021-04-15 01:10:36,325 INFO L226 Difference]: Without dead ends: 3527 [2021-04-15 01:10:36,326 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 2413.2ms TimeCoverageRelationStatistics Valid=444, Invalid=2106, Unknown=0, NotChecked=0, Total=2550 [2021-04-15 01:10:36,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3527 states. [2021-04-15 01:10:36,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3527 to 3386. [2021-04-15 01:10:36,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 2.6236336779911373) internal successors, (8881), 3385 states have internal predecessors, (8881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:10:36,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 8881 transitions. [2021-04-15 01:10:36,362 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 8881 transitions. Word has length 113 [2021-04-15 01:10:36,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:10:36,362 INFO L480 AbstractCegarLoop]: Abstraction has 3386 states and 8881 transitions. [2021-04-15 01:10:36,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:10:36,363 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 8881 transitions. [2021-04-15 01:10:36,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:10:36,366 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:10:36,366 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:10:36,366 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-04-15 01:10:36,366 INFO L428 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]=== [2021-04-15 01:10:36,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:10:36,366 INFO L82 PathProgramCache]: Analyzing trace with hash 245344316, now seen corresponding path program 26 times [2021-04-15 01:10:36,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:10:36,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605228600] [2021-04-15 01:10:36,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:10:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:10:37,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:10:37,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605228600] [2021-04-15 01:10:37,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:10:37,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:10:37,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143090773] [2021-04-15 01:10:37,232 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:10:37,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:10:37,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:10:37,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:10:37,234 INFO L87 Difference]: Start difference. First operand 3386 states and 8881 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:10:39,236 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 61 [2021-04-15 01:10:39,379 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2021-04-15 01:10:39,613 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2021-04-15 01:10:40,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:10:40,535 INFO L93 Difference]: Finished difference Result 4522 states and 11512 transitions. [2021-04-15 01:10:40,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-04-15 01:10:40,536 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:10:40,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:10:40,540 INFO L225 Difference]: With dead ends: 4522 [2021-04-15 01:10:40,540 INFO L226 Difference]: Without dead ends: 4317 [2021-04-15 01:10:40,540 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 2980.6ms TimeCoverageRelationStatistics Valid=557, Invalid=2865, Unknown=0, NotChecked=0, Total=3422 [2021-04-15 01:10:40,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4317 states. [2021-04-15 01:10:40,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4317 to 3386. [2021-04-15 01:10:40,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 2.619202363367799) internal successors, (8866), 3385 states have internal predecessors, (8866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:10:40,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 8866 transitions. [2021-04-15 01:10:40,586 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 8866 transitions. Word has length 113 [2021-04-15 01:10:40,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:10:40,586 INFO L480 AbstractCegarLoop]: Abstraction has 3386 states and 8866 transitions. [2021-04-15 01:10:40,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:10:40,587 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 8866 transitions. [2021-04-15 01:10:40,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:10:40,590 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:10:40,590 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:10:40,590 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-04-15 01:10:40,590 INFO L428 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]=== [2021-04-15 01:10:40,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:10:40,590 INFO L82 PathProgramCache]: Analyzing trace with hash -700732104, now seen corresponding path program 27 times [2021-04-15 01:10:40,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:10:40,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59283062] [2021-04-15 01:10:40,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:10:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:10:41,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:10:41,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59283062] [2021-04-15 01:10:41,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:10:41,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:10:41,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987894772] [2021-04-15 01:10:41,383 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:10:41,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:10:41,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:10:41,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:10:41,383 INFO L87 Difference]: Start difference. First operand 3386 states and 8866 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:10:43,484 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2021-04-15 01:10:43,627 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2021-04-15 01:10:43,834 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2021-04-15 01:10:44,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:10:44,502 INFO L93 Difference]: Finished difference Result 4634 states and 11877 transitions. [2021-04-15 01:10:44,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-04-15 01:10:44,502 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:10:44,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:10:44,506 INFO L225 Difference]: With dead ends: 4634 [2021-04-15 01:10:44,507 INFO L226 Difference]: Without dead ends: 4474 [2021-04-15 01:10:44,507 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 2693.6ms TimeCoverageRelationStatistics Valid=505, Invalid=2575, Unknown=0, NotChecked=0, Total=3080 [2021-04-15 01:10:44,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4474 states. [2021-04-15 01:10:44,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4474 to 3441. [2021-04-15 01:10:44,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3441 states, 3440 states have (on average 2.620639534883721) internal successors, (9015), 3440 states have internal predecessors, (9015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:10:44,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3441 states to 3441 states and 9015 transitions. [2021-04-15 01:10:44,547 INFO L78 Accepts]: Start accepts. Automaton has 3441 states and 9015 transitions. Word has length 113 [2021-04-15 01:10:44,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:10:44,547 INFO L480 AbstractCegarLoop]: Abstraction has 3441 states and 9015 transitions. [2021-04-15 01:10:44,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:10:44,547 INFO L276 IsEmpty]: Start isEmpty. Operand 3441 states and 9015 transitions. [2021-04-15 01:10:44,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:10:44,550 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:10:44,550 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:10:44,550 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-04-15 01:10:44,550 INFO L428 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]=== [2021-04-15 01:10:44,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:10:44,551 INFO L82 PathProgramCache]: Analyzing trace with hash -610718706, now seen corresponding path program 28 times [2021-04-15 01:10:44,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:10:44,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102092735] [2021-04-15 01:10:44,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:10:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:10:45,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:10:45,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102092735] [2021-04-15 01:10:45,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:10:45,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:10:45,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26699961] [2021-04-15 01:10:45,496 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:10:45,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:10:45,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:10:45,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:10:45,497 INFO L87 Difference]: Start difference. First operand 3441 states and 9015 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:10:48,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:10:48,480 INFO L93 Difference]: Finished difference Result 4748 states and 12157 transitions. [2021-04-15 01:10:48,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-04-15 01:10:48,480 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:10:48,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:10:48,485 INFO L225 Difference]: With dead ends: 4748 [2021-04-15 01:10:48,485 INFO L226 Difference]: Without dead ends: 4497 [2021-04-15 01:10:48,486 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 2784.5ms TimeCoverageRelationStatistics Valid=526, Invalid=2666, Unknown=0, NotChecked=0, Total=3192 [2021-04-15 01:10:48,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4497 states. [2021-04-15 01:10:48,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4497 to 3628. [2021-04-15 01:10:48,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3628 states, 3627 states have (on average 2.609870416322029) internal successors, (9466), 3627 states have internal predecessors, (9466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:10:48,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3628 states to 3628 states and 9466 transitions. [2021-04-15 01:10:48,532 INFO L78 Accepts]: Start accepts. Automaton has 3628 states and 9466 transitions. Word has length 113 [2021-04-15 01:10:48,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:10:48,533 INFO L480 AbstractCegarLoop]: Abstraction has 3628 states and 9466 transitions. [2021-04-15 01:10:48,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:10:48,533 INFO L276 IsEmpty]: Start isEmpty. Operand 3628 states and 9466 transitions. [2021-04-15 01:10:48,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:10:48,536 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:10:48,536 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:10:48,536 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-04-15 01:10:48,536 INFO L428 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]=== [2021-04-15 01:10:48,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:10:48,536 INFO L82 PathProgramCache]: Analyzing trace with hash 597706658, now seen corresponding path program 29 times [2021-04-15 01:10:48,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:10:48,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293280263] [2021-04-15 01:10:48,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:10:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:10:49,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:10:49,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293280263] [2021-04-15 01:10:49,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:10:49,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:10:49,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813336228] [2021-04-15 01:10:49,479 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:10:49,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:10:49,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:10:49,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:10:49,479 INFO L87 Difference]: Start difference. First operand 3628 states and 9466 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:10:51,600 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2021-04-15 01:10:51,855 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2021-04-15 01:10:52,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:10:52,737 INFO L93 Difference]: Finished difference Result 4594 states and 11740 transitions. [2021-04-15 01:10:52,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-04-15 01:10:52,738 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:10:52,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:10:52,742 INFO L225 Difference]: With dead ends: 4594 [2021-04-15 01:10:52,742 INFO L226 Difference]: Without dead ends: 4464 [2021-04-15 01:10:52,742 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 2921.3ms TimeCoverageRelationStatistics Valid=532, Invalid=2774, Unknown=0, NotChecked=0, Total=3306 [2021-04-15 01:10:52,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4464 states. [2021-04-15 01:10:52,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4464 to 3595. [2021-04-15 01:10:52,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3595 states, 3594 states have (on average 2.6093489148580966) internal successors, (9378), 3594 states have internal predecessors, (9378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:10:52,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3595 states to 3595 states and 9378 transitions. [2021-04-15 01:10:52,785 INFO L78 Accepts]: Start accepts. Automaton has 3595 states and 9378 transitions. Word has length 113 [2021-04-15 01:10:52,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:10:52,785 INFO L480 AbstractCegarLoop]: Abstraction has 3595 states and 9378 transitions. [2021-04-15 01:10:52,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:10:52,785 INFO L276 IsEmpty]: Start isEmpty. Operand 3595 states and 9378 transitions. [2021-04-15 01:10:52,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:10:52,788 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:10:52,788 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:10:52,789 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-04-15 01:10:52,789 INFO L428 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]=== [2021-04-15 01:10:52,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:10:52,789 INFO L82 PathProgramCache]: Analyzing trace with hash 242739956, now seen corresponding path program 30 times [2021-04-15 01:10:52,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:10:52,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143270491] [2021-04-15 01:10:52,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:10:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:10:53,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:10:53,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143270491] [2021-04-15 01:10:53,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:10:53,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:10:53,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714105611] [2021-04-15 01:10:53,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:10:53,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:10:53,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:10:53,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:10:53,719 INFO L87 Difference]: Start difference. First operand 3595 states and 9378 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:10:55,884 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 64 [2021-04-15 01:10:56,025 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2021-04-15 01:10:56,229 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2021-04-15 01:10:56,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:10:56,929 INFO L93 Difference]: Finished difference Result 4527 states and 11597 transitions. [2021-04-15 01:10:56,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-04-15 01:10:56,929 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:10:56,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:10:56,934 INFO L225 Difference]: With dead ends: 4527 [2021-04-15 01:10:56,934 INFO L226 Difference]: Without dead ends: 4008 [2021-04-15 01:10:56,934 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 2804.9ms TimeCoverageRelationStatistics Valid=505, Invalid=2575, Unknown=0, NotChecked=0, Total=3080 [2021-04-15 01:10:56,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4008 states. [2021-04-15 01:10:56,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4008 to 3221. [2021-04-15 01:10:56,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3221 states, 3220 states have (on average 2.6043478260869564) internal successors, (8386), 3220 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) [2021-04-15 01:10:56,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3221 states to 3221 states and 8386 transitions. [2021-04-15 01:10:56,977 INFO L78 Accepts]: Start accepts. Automaton has 3221 states and 8386 transitions. Word has length 113 [2021-04-15 01:10:56,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:10:56,977 INFO L480 AbstractCegarLoop]: Abstraction has 3221 states and 8386 transitions. [2021-04-15 01:10:56,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:10:56,977 INFO L276 IsEmpty]: Start isEmpty. Operand 3221 states and 8386 transitions. [2021-04-15 01:10:56,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:10:56,980 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:10:56,980 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:10:56,980 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-04-15 01:10:56,980 INFO L428 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]=== [2021-04-15 01:10:56,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:10:56,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1047590382, now seen corresponding path program 31 times [2021-04-15 01:10:56,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:10:56,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715689966] [2021-04-15 01:10:56,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:10:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:10:57,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:10:57,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715689966] [2021-04-15 01:10:57,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:10:57,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:10:57,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793944807] [2021-04-15 01:10:57,829 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:10:57,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:10:57,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:10:57,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:10:57,829 INFO L87 Difference]: Start difference. First operand 3221 states and 8386 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:10:59,727 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2021-04-15 01:11:00,121 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2021-04-15 01:11:00,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:11:00,960 INFO L93 Difference]: Finished difference Result 3940 states and 9965 transitions. [2021-04-15 01:11:00,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-04-15 01:11:00,960 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:11:00,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:11:00,964 INFO L225 Difference]: With dead ends: 3940 [2021-04-15 01:11:00,964 INFO L226 Difference]: Without dead ends: 3735 [2021-04-15 01:11:00,965 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 2889.7ms TimeCoverageRelationStatistics Valid=585, Invalid=2837, Unknown=0, NotChecked=0, Total=3422 [2021-04-15 01:11:00,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3735 states. [2021-04-15 01:11:01,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3735 to 3227. [2021-04-15 01:11:01,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3227 states, 3226 states have (on average 2.602293862368258) internal successors, (8395), 3226 states have internal predecessors, (8395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:11:01,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3227 states to 3227 states and 8395 transitions. [2021-04-15 01:11:01,006 INFO L78 Accepts]: Start accepts. Automaton has 3227 states and 8395 transitions. Word has length 113 [2021-04-15 01:11:01,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:11:01,006 INFO L480 AbstractCegarLoop]: Abstraction has 3227 states and 8395 transitions. [2021-04-15 01:11:01,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:01,006 INFO L276 IsEmpty]: Start isEmpty. Operand 3227 states and 8395 transitions. [2021-04-15 01:11:01,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:11:01,009 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:11:01,009 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:11:01,009 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-04-15 01:11:01,009 INFO L428 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]=== [2021-04-15 01:11:01,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:11:01,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1383510008, now seen corresponding path program 32 times [2021-04-15 01:11:01,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:11:01,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110182067] [2021-04-15 01:11:01,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:11:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:11:01,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:11:01,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110182067] [2021-04-15 01:11:01,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:11:01,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:11:01,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441962680] [2021-04-15 01:11:01,851 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:11:01,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:11:01,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:11:01,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:11:01,851 INFO L87 Difference]: Start difference. First operand 3227 states and 8395 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:03,319 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-04-15 01:11:03,759 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2021-04-15 01:11:04,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:11:04,761 INFO L93 Difference]: Finished difference Result 3742 states and 9561 transitions. [2021-04-15 01:11:04,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-04-15 01:11:04,762 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:11:04,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:11:04,765 INFO L225 Difference]: With dead ends: 3742 [2021-04-15 01:11:04,765 INFO L226 Difference]: Without dead ends: 3582 [2021-04-15 01:11:04,766 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 2649.0ms TimeCoverageRelationStatistics Valid=497, Invalid=2473, Unknown=0, NotChecked=0, Total=2970 [2021-04-15 01:11:04,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3582 states. [2021-04-15 01:11:04,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3582 to 3229. [2021-04-15 01:11:04,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3229 states, 3228 states have (on average 2.601610904584882) internal successors, (8398), 3228 states have internal predecessors, (8398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:11:04,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3229 states to 3229 states and 8398 transitions. [2021-04-15 01:11:04,802 INFO L78 Accepts]: Start accepts. Automaton has 3229 states and 8398 transitions. Word has length 113 [2021-04-15 01:11:04,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:11:04,803 INFO L480 AbstractCegarLoop]: Abstraction has 3229 states and 8398 transitions. [2021-04-15 01:11:04,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:04,803 INFO L276 IsEmpty]: Start isEmpty. Operand 3229 states and 8398 transitions. [2021-04-15 01:11:04,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:11:04,805 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:11:04,806 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:11:04,806 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-04-15 01:11:04,806 INFO L428 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]=== [2021-04-15 01:11:04,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:11:04,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1794353454, now seen corresponding path program 33 times [2021-04-15 01:11:04,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:11:04,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797747508] [2021-04-15 01:11:04,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:11:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:11:05,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:11:05,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797747508] [2021-04-15 01:11:05,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:11:05,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:11:05,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228064395] [2021-04-15 01:11:05,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:11:05,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:11:05,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:11:05,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:11:05,683 INFO L87 Difference]: Start difference. First operand 3229 states and 8398 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:07,128 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-04-15 01:11:07,277 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-04-15 01:11:07,513 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2021-04-15 01:11:08,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:11:08,426 INFO L93 Difference]: Finished difference Result 3668 states and 9405 transitions. [2021-04-15 01:11:08,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-04-15 01:11:08,427 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:11:08,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:11:08,430 INFO L225 Difference]: With dead ends: 3668 [2021-04-15 01:11:08,430 INFO L226 Difference]: Without dead ends: 3513 [2021-04-15 01:11:08,431 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 2575.0ms TimeCoverageRelationStatistics Valid=491, Invalid=2371, Unknown=0, NotChecked=0, Total=2862 [2021-04-15 01:11:08,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3513 states. [2021-04-15 01:11:08,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3513 to 3221. [2021-04-15 01:11:08,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3221 states, 3220 states have (on average 2.603416149068323) internal successors, (8383), 3220 states have internal predecessors, (8383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:11:08,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3221 states to 3221 states and 8383 transitions. [2021-04-15 01:11:08,467 INFO L78 Accepts]: Start accepts. Automaton has 3221 states and 8383 transitions. Word has length 113 [2021-04-15 01:11:08,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:11:08,467 INFO L480 AbstractCegarLoop]: Abstraction has 3221 states and 8383 transitions. [2021-04-15 01:11:08,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:08,467 INFO L276 IsEmpty]: Start isEmpty. Operand 3221 states and 8383 transitions. [2021-04-15 01:11:08,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:11:08,470 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:11:08,470 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:11:08,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-04-15 01:11:08,470 INFO L428 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]=== [2021-04-15 01:11:08,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:11:08,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1122841710, now seen corresponding path program 34 times [2021-04-15 01:11:08,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:11:08,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554325956] [2021-04-15 01:11:08,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:11:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:11:09,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:11:09,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554325956] [2021-04-15 01:11:09,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:11:09,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:11:09,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740153322] [2021-04-15 01:11:09,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:11:09,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:11:09,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:11:09,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:11:09,395 INFO L87 Difference]: Start difference. First operand 3221 states and 8383 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:11,426 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2021-04-15 01:11:12,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:11:12,384 INFO L93 Difference]: Finished difference Result 3942 states and 10082 transitions. [2021-04-15 01:11:12,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-04-15 01:11:12,384 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:11:12,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:11:12,389 INFO L225 Difference]: With dead ends: 3942 [2021-04-15 01:11:12,389 INFO L226 Difference]: Without dead ends: 3782 [2021-04-15 01:11:12,389 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 2785.1ms TimeCoverageRelationStatistics Valid=508, Invalid=2572, Unknown=0, NotChecked=0, Total=3080 [2021-04-15 01:11:12,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3782 states. [2021-04-15 01:11:12,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3782 to 3254. [2021-04-15 01:11:12,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3254 states, 3253 states have (on average 2.6025207500768524) internal successors, (8466), 3253 states have internal predecessors, (8466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:11:12,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3254 states to 3254 states and 8466 transitions. [2021-04-15 01:11:12,430 INFO L78 Accepts]: Start accepts. Automaton has 3254 states and 8466 transitions. Word has length 113 [2021-04-15 01:11:12,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:11:12,430 INFO L480 AbstractCegarLoop]: Abstraction has 3254 states and 8466 transitions. [2021-04-15 01:11:12,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:12,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3254 states and 8466 transitions. [2021-04-15 01:11:12,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:11:12,433 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:11:12,433 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:11:12,433 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-04-15 01:11:12,433 INFO L428 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]=== [2021-04-15 01:11:12,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:11:12,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1212855108, now seen corresponding path program 35 times [2021-04-15 01:11:12,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:11:12,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058938507] [2021-04-15 01:11:12,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:11:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:11:13,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:11:13,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058938507] [2021-04-15 01:11:13,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:11:13,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:11:13,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501658242] [2021-04-15 01:11:13,399 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:11:13,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:11:13,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:11:13,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:11:13,399 INFO L87 Difference]: Start difference. First operand 3254 states and 8466 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:16,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:11:16,325 INFO L93 Difference]: Finished difference Result 4299 states and 10959 transitions. [2021-04-15 01:11:16,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-04-15 01:11:16,325 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:11:16,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:11:16,329 INFO L225 Difference]: With dead ends: 4299 [2021-04-15 01:11:16,329 INFO L226 Difference]: Without dead ends: 4048 [2021-04-15 01:11:16,329 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 2810.9ms TimeCoverageRelationStatistics Valid=532, Invalid=2660, Unknown=0, NotChecked=0, Total=3192 [2021-04-15 01:11:16,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4048 states. [2021-04-15 01:11:16,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4048 to 3441. [2021-04-15 01:11:16,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3441 states, 3440 states have (on average 2.5921511627906977) internal successors, (8917), 3440 states have internal predecessors, (8917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:11:16,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3441 states to 3441 states and 8917 transitions. [2021-04-15 01:11:16,368 INFO L78 Accepts]: Start accepts. Automaton has 3441 states and 8917 transitions. Word has length 113 [2021-04-15 01:11:16,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:11:16,369 INFO L480 AbstractCegarLoop]: Abstraction has 3441 states and 8917 transitions. [2021-04-15 01:11:16,369 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:16,369 INFO L276 IsEmpty]: Start isEmpty. Operand 3441 states and 8917 transitions. [2021-04-15 01:11:16,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:11:16,371 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:11:16,372 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:11:16,372 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-04-15 01:11:16,372 INFO L428 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]=== [2021-04-15 01:11:16,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:11:16,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1873686824, now seen corresponding path program 36 times [2021-04-15 01:11:16,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:11:16,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779301164] [2021-04-15 01:11:16,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:11:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:11:17,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:11:17,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779301164] [2021-04-15 01:11:17,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:11:17,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:11:17,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877128302] [2021-04-15 01:11:17,260 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:11:17,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:11:17,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:11:17,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:11:17,261 INFO L87 Difference]: Start difference. First operand 3441 states and 8917 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:20,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:11:20,334 INFO L93 Difference]: Finished difference Result 4145 states and 10542 transitions. [2021-04-15 01:11:20,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-04-15 01:11:20,334 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:11:20,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:11:20,337 INFO L225 Difference]: With dead ends: 4145 [2021-04-15 01:11:20,337 INFO L226 Difference]: Without dead ends: 4015 [2021-04-15 01:11:20,337 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 2821.5ms TimeCoverageRelationStatistics Valid=536, Invalid=2770, Unknown=0, NotChecked=0, Total=3306 [2021-04-15 01:11:20,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4015 states. [2021-04-15 01:11:20,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4015 to 3408. [2021-04-15 01:11:20,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3408 states, 3407 states have (on average 2.5914294100381565) internal successors, (8829), 3407 states have internal predecessors, (8829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:11:20,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3408 states to 3408 states and 8829 transitions. [2021-04-15 01:11:20,374 INFO L78 Accepts]: Start accepts. Automaton has 3408 states and 8829 transitions. Word has length 113 [2021-04-15 01:11:20,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:11:20,374 INFO L480 AbstractCegarLoop]: Abstraction has 3408 states and 8829 transitions. [2021-04-15 01:11:20,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:20,374 INFO L276 IsEmpty]: Start isEmpty. Operand 3408 states and 8829 transitions. [2021-04-15 01:11:20,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:11:20,377 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:11:20,378 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:11:20,378 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-04-15 01:11:20,378 INFO L428 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]=== [2021-04-15 01:11:20,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:11:20,378 INFO L82 PathProgramCache]: Analyzing trace with hash 2066313770, now seen corresponding path program 37 times [2021-04-15 01:11:20,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:11:20,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043116443] [2021-04-15 01:11:20,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:11:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:11:21,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:11:21,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043116443] [2021-04-15 01:11:21,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:11:21,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:11:21,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907217560] [2021-04-15 01:11:21,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:11:21,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:11:21,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:11:21,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:11:21,179 INFO L87 Difference]: Start difference. First operand 3408 states and 8829 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:23,270 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2021-04-15 01:11:23,583 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2021-04-15 01:11:24,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:11:24,268 INFO L93 Difference]: Finished difference Result 4078 states and 10399 transitions. [2021-04-15 01:11:24,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-04-15 01:11:24,269 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:11:24,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:11:24,271 INFO L225 Difference]: With dead ends: 4078 [2021-04-15 01:11:24,271 INFO L226 Difference]: Without dead ends: 3724 [2021-04-15 01:11:24,272 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 2766.9ms TimeCoverageRelationStatistics Valid=508, Invalid=2572, Unknown=0, NotChecked=0, Total=3080 [2021-04-15 01:11:24,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3724 states. [2021-04-15 01:11:24,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3724 to 3199. [2021-04-15 01:11:24,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3199 states, 3198 states have (on average 2.5972482801751093) internal successors, (8306), 3198 states have internal predecessors, (8306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:11:24,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3199 states to 3199 states and 8306 transitions. [2021-04-15 01:11:24,307 INFO L78 Accepts]: Start accepts. Automaton has 3199 states and 8306 transitions. Word has length 113 [2021-04-15 01:11:24,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:11:24,307 INFO L480 AbstractCegarLoop]: Abstraction has 3199 states and 8306 transitions. [2021-04-15 01:11:24,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:24,307 INFO L276 IsEmpty]: Start isEmpty. Operand 3199 states and 8306 transitions. [2021-04-15 01:11:24,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:11:24,311 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:11:24,311 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:11:24,311 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-04-15 01:11:24,311 INFO L428 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]=== [2021-04-15 01:11:24,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:11:24,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1841457276, now seen corresponding path program 38 times [2021-04-15 01:11:24,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:11:24,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848390220] [2021-04-15 01:11:24,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:11:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:11:25,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:11:25,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848390220] [2021-04-15 01:11:25,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:11:25,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:11:25,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604561549] [2021-04-15 01:11:25,158 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:11:25,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:11:25,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:11:25,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:11:25,158 INFO L87 Difference]: Start difference. First operand 3199 states and 8306 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:26,779 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-04-15 01:11:27,141 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2021-04-15 01:11:28,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:11:28,252 INFO L93 Difference]: Finished difference Result 3656 states and 9340 transitions. [2021-04-15 01:11:28,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-04-15 01:11:28,253 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:11:28,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:11:28,255 INFO L225 Difference]: With dead ends: 3656 [2021-04-15 01:11:28,255 INFO L226 Difference]: Without dead ends: 3496 [2021-04-15 01:11:28,255 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 2820.6ms TimeCoverageRelationStatistics Valid=517, Invalid=2563, Unknown=0, NotChecked=0, Total=3080 [2021-04-15 01:11:28,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3496 states. [2021-04-15 01:11:28,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3496 to 3201. [2021-04-15 01:11:28,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3201 states, 3200 states have (on average 2.5965625) internal successors, (8309), 3200 states have internal predecessors, (8309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:11:28,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3201 states to 3201 states and 8309 transitions. [2021-04-15 01:11:28,289 INFO L78 Accepts]: Start accepts. Automaton has 3201 states and 8309 transitions. Word has length 113 [2021-04-15 01:11:28,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:11:28,289 INFO L480 AbstractCegarLoop]: Abstraction has 3201 states and 8309 transitions. [2021-04-15 01:11:28,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:28,289 INFO L276 IsEmpty]: Start isEmpty. Operand 3201 states and 8309 transitions. [2021-04-15 01:11:28,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:11:28,292 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:11:28,292 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:11:28,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-04-15 01:11:28,293 INFO L428 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]=== [2021-04-15 01:11:28,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:11:28,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1336406186, now seen corresponding path program 39 times [2021-04-15 01:11:28,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:11:28,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669417762] [2021-04-15 01:11:28,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:11:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:11:29,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:11:29,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669417762] [2021-04-15 01:11:29,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:11:29,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:11:29,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652212634] [2021-04-15 01:11:29,132 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:11:29,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:11:29,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:11:29,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:11:29,133 INFO L87 Difference]: Start difference. First operand 3201 states and 8309 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:30,267 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-04-15 01:11:30,755 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-04-15 01:11:30,910 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-04-15 01:11:31,066 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2021-04-15 01:11:32,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:11:32,082 INFO L93 Difference]: Finished difference Result 3584 states and 9187 transitions. [2021-04-15 01:11:32,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-04-15 01:11:32,083 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:11:32,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:11:32,085 INFO L225 Difference]: With dead ends: 3584 [2021-04-15 01:11:32,086 INFO L226 Difference]: Without dead ends: 3435 [2021-04-15 01:11:32,086 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 2732.0ms TimeCoverageRelationStatistics Valid=511, Invalid=2459, Unknown=0, NotChecked=0, Total=2970 [2021-04-15 01:11:32,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2021-04-15 01:11:32,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 3199. [2021-04-15 01:11:32,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3199 states, 3198 states have (on average 2.596935584740463) internal successors, (8305), 3198 states have internal predecessors, (8305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:11:32,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3199 states to 3199 states and 8305 transitions. [2021-04-15 01:11:32,119 INFO L78 Accepts]: Start accepts. Automaton has 3199 states and 8305 transitions. Word has length 113 [2021-04-15 01:11:32,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:11:32,119 INFO L480 AbstractCegarLoop]: Abstraction has 3199 states and 8305 transitions. [2021-04-15 01:11:32,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:32,119 INFO L276 IsEmpty]: Start isEmpty. Operand 3199 states and 8305 transitions. [2021-04-15 01:11:32,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:11:32,122 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:11:32,122 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:11:32,122 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-04-15 01:11:32,122 INFO L428 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]=== [2021-04-15 01:11:32,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:11:32,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1483335594, now seen corresponding path program 40 times [2021-04-15 01:11:32,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:11:32,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901027984] [2021-04-15 01:11:32,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:11:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:11:32,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:11:32,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901027984] [2021-04-15 01:11:32,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:11:32,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:11:32,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984470685] [2021-04-15 01:11:32,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:11:32,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:11:32,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:11:32,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:11:32,949 INFO L87 Difference]: Start difference. First operand 3199 states and 8305 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:34,065 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-04-15 01:11:34,234 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-04-15 01:11:34,455 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-04-15 01:11:35,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:11:35,960 INFO L93 Difference]: Finished difference Result 3985 states and 10166 transitions. [2021-04-15 01:11:35,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-04-15 01:11:35,961 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:11:35,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:11:35,964 INFO L225 Difference]: With dead ends: 3985 [2021-04-15 01:11:35,964 INFO L226 Difference]: Without dead ends: 3734 [2021-04-15 01:11:35,964 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 2792.6ms TimeCoverageRelationStatistics Valid=544, Invalid=2648, Unknown=0, NotChecked=0, Total=3192 [2021-04-15 01:11:35,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3734 states. [2021-04-15 01:11:35,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3734 to 3364. [2021-04-15 01:11:35,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3364 states, 3363 states have (on average 2.590544157002676) internal successors, (8712), 3363 states have internal predecessors, (8712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:11:35,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3364 states to 3364 states and 8712 transitions. [2021-04-15 01:11:35,999 INFO L78 Accepts]: Start accepts. Automaton has 3364 states and 8712 transitions. Word has length 113 [2021-04-15 01:11:35,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:11:35,999 INFO L480 AbstractCegarLoop]: Abstraction has 3364 states and 8712 transitions. [2021-04-15 01:11:35,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:35,999 INFO L276 IsEmpty]: Start isEmpty. Operand 3364 states and 8712 transitions. [2021-04-15 01:11:36,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:11:36,002 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:11:36,002 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:11:36,002 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-04-15 01:11:36,002 INFO L428 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]=== [2021-04-15 01:11:36,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:11:36,003 INFO L82 PathProgramCache]: Analyzing trace with hash -126948864, now seen corresponding path program 41 times [2021-04-15 01:11:36,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:11:36,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435173739] [2021-04-15 01:11:36,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:11:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:11:36,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:11:36,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435173739] [2021-04-15 01:11:36,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:11:36,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:11:36,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553952206] [2021-04-15 01:11:36,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:11:36,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:11:36,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:11:36,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:11:36,860 INFO L87 Difference]: Start difference. First operand 3364 states and 8712 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:37,988 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-04-15 01:11:38,157 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-04-15 01:11:38,379 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-04-15 01:11:39,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:11:39,977 INFO L93 Difference]: Finished difference Result 3831 states and 9749 transitions. [2021-04-15 01:11:39,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-04-15 01:11:39,978 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:11:39,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:11:39,981 INFO L225 Difference]: With dead ends: 3831 [2021-04-15 01:11:39,981 INFO L226 Difference]: Without dead ends: 3701 [2021-04-15 01:11:39,981 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 2904.3ms TimeCoverageRelationStatistics Valid=546, Invalid=2760, Unknown=0, NotChecked=0, Total=3306 [2021-04-15 01:11:39,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3701 states. [2021-04-15 01:11:40,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3701 to 3331. [2021-04-15 01:11:40,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3331 states, 3330 states have (on average 2.5897897897897897) internal successors, (8624), 3330 states have internal predecessors, (8624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:11:40,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3331 states to 3331 states and 8624 transitions. [2021-04-15 01:11:40,016 INFO L78 Accepts]: Start accepts. Automaton has 3331 states and 8624 transitions. Word has length 113 [2021-04-15 01:11:40,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:11:40,016 INFO L480 AbstractCegarLoop]: Abstraction has 3331 states and 8624 transitions. [2021-04-15 01:11:40,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:40,016 INFO L276 IsEmpty]: Start isEmpty. Operand 3331 states and 8624 transitions. [2021-04-15 01:11:40,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:11:40,019 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:11:40,019 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:11:40,019 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-04-15 01:11:40,019 INFO L428 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]=== [2021-04-15 01:11:40,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:11:40,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1315714224, now seen corresponding path program 42 times [2021-04-15 01:11:40,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:11:40,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774495558] [2021-04-15 01:11:40,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:11:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:11:40,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:11:40,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774495558] [2021-04-15 01:11:40,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:11:40,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:11:40,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256387302] [2021-04-15 01:11:40,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:11:40,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:11:40,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:11:40,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:11:40,834 INFO L87 Difference]: Start difference. First operand 3331 states and 8624 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:42,218 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-04-15 01:11:42,450 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-04-15 01:11:43,010 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-04-15 01:11:44,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:11:44,081 INFO L93 Difference]: Finished difference Result 3764 states and 9606 transitions. [2021-04-15 01:11:44,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-04-15 01:11:44,081 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:11:44,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:11:44,084 INFO L225 Difference]: With dead ends: 3764 [2021-04-15 01:11:44,084 INFO L226 Difference]: Without dead ends: 3465 [2021-04-15 01:11:44,084 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 522 ImplicationChecksByTransitivity, 2796.5ms TimeCoverageRelationStatistics Valid=517, Invalid=2563, Unknown=0, NotChecked=0, Total=3080 [2021-04-15 01:11:44,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3465 states. [2021-04-15 01:11:44,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3465 to 3177. [2021-04-15 01:11:44,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3177 states, 3176 states have (on average 2.597607052896725) internal successors, (8250), 3176 states have internal predecessors, (8250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:11:44,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3177 states to 3177 states and 8250 transitions. [2021-04-15 01:11:44,121 INFO L78 Accepts]: Start accepts. Automaton has 3177 states and 8250 transitions. Word has length 113 [2021-04-15 01:11:44,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:11:44,121 INFO L480 AbstractCegarLoop]: Abstraction has 3177 states and 8250 transitions. [2021-04-15 01:11:44,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:44,121 INFO L276 IsEmpty]: Start isEmpty. Operand 3177 states and 8250 transitions. [2021-04-15 01:11:44,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:11:44,124 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:11:44,124 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:11:44,124 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-04-15 01:11:44,124 INFO L428 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]=== [2021-04-15 01:11:44,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:11:44,125 INFO L82 PathProgramCache]: Analyzing trace with hash 508440560, now seen corresponding path program 43 times [2021-04-15 01:11:44,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:11:44,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229778862] [2021-04-15 01:11:44,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:11:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:11:44,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:11:44,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229778862] [2021-04-15 01:11:44,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:11:44,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:11:44,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610468655] [2021-04-15 01:11:44,942 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:11:44,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:11:44,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:11:44,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:11:44,942 INFO L87 Difference]: Start difference. First operand 3177 states and 8250 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:46,370 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-04-15 01:11:46,766 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2021-04-15 01:11:47,015 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-04-15 01:11:48,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:11:48,048 INFO L93 Difference]: Finished difference Result 3556 states and 9122 transitions. [2021-04-15 01:11:48,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-04-15 01:11:48,049 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:11:48,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:11:48,051 INFO L225 Difference]: With dead ends: 3556 [2021-04-15 01:11:48,052 INFO L226 Difference]: Without dead ends: 3255 [2021-04-15 01:11:48,052 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 2794.7ms TimeCoverageRelationStatistics Valid=511, Invalid=2459, Unknown=0, NotChecked=0, Total=2970 [2021-04-15 01:11:48,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3255 states. [2021-04-15 01:11:48,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3255 to 3023. [2021-04-15 01:11:48,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3023 states, 3022 states have (on average 2.6032428855062872) internal successors, (7867), 3022 states have internal predecessors, (7867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:11:48,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3023 states to 3023 states and 7867 transitions. [2021-04-15 01:11:48,083 INFO L78 Accepts]: Start accepts. Automaton has 3023 states and 7867 transitions. Word has length 113 [2021-04-15 01:11:48,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:11:48,083 INFO L480 AbstractCegarLoop]: Abstraction has 3023 states and 7867 transitions. [2021-04-15 01:11:48,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:48,083 INFO L276 IsEmpty]: Start isEmpty. Operand 3023 states and 7867 transitions. [2021-04-15 01:11:48,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:11:48,085 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:11:48,085 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:11:48,085 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-04-15 01:11:48,085 INFO L428 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]=== [2021-04-15 01:11:48,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:11:48,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1652269268, now seen corresponding path program 44 times [2021-04-15 01:11:48,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:11:48,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389437652] [2021-04-15 01:11:48,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:11:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:11:48,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:11:48,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389437652] [2021-04-15 01:11:48,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:11:48,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-04-15 01:11:48,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439091886] [2021-04-15 01:11:48,371 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-15 01:11:48,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:11:48,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-15 01:11:48,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-04-15 01:11:48,371 INFO L87 Difference]: Start difference. First operand 3023 states and 7867 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) [2021-04-15 01:11:48,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:11:48,939 INFO L93 Difference]: Finished difference Result 4476 states and 11395 transitions. [2021-04-15 01:11:48,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 01:11:48,939 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 [2021-04-15 01:11:48,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:11:48,943 INFO L225 Difference]: With dead ends: 4476 [2021-04-15 01:11:48,943 INFO L226 Difference]: Without dead ends: 4368 [2021-04-15 01:11:48,943 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 506.4ms TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2021-04-15 01:11:48,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4368 states. [2021-04-15 01:11:48,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4368 to 2971. [2021-04-15 01:11:48,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2971 states, 2970 states have (on average 2.5983164983164984) internal successors, (7717), 2970 states have internal predecessors, (7717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:11:48,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2971 states to 2971 states and 7717 transitions. [2021-04-15 01:11:48,982 INFO L78 Accepts]: Start accepts. Automaton has 2971 states and 7717 transitions. Word has length 113 [2021-04-15 01:11:48,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:11:48,982 INFO L480 AbstractCegarLoop]: Abstraction has 2971 states and 7717 transitions. [2021-04-15 01:11:48,982 INFO L481 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) [2021-04-15 01:11:48,982 INFO L276 IsEmpty]: Start isEmpty. Operand 2971 states and 7717 transitions. [2021-04-15 01:11:48,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:11:48,984 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:11:48,984 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:11:48,984 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-04-15 01:11:48,984 INFO L428 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]=== [2021-04-15 01:11:48,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:11:48,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1229740564, now seen corresponding path program 45 times [2021-04-15 01:11:48,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:11:48,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817507701] [2021-04-15 01:11:48,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:11:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:11:49,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:11:49,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817507701] [2021-04-15 01:11:49,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:11:49,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:11:49,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857475575] [2021-04-15 01:11:49,826 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:11:49,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:11:49,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:11:49,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:11:49,827 INFO L87 Difference]: Start difference. First operand 2971 states and 7717 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:51,196 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-04-15 01:11:51,352 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2021-04-15 01:11:51,568 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2021-04-15 01:11:53,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:11:53,205 INFO L93 Difference]: Finished difference Result 3555 states and 8888 transitions. [2021-04-15 01:11:53,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-04-15 01:11:53,205 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:11:53,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:11:53,208 INFO L225 Difference]: With dead ends: 3555 [2021-04-15 01:11:53,208 INFO L226 Difference]: Without dead ends: 3314 [2021-04-15 01:11:53,209 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 2941.8ms TimeCoverageRelationStatistics Valid=605, Invalid=2817, Unknown=0, NotChecked=0, Total=3422 [2021-04-15 01:11:53,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3314 states. [2021-04-15 01:11:53,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3314 to 3024. [2021-04-15 01:11:53,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3024 states, 3023 states have (on average 2.5901422428051606) internal successors, (7830), 3023 states have internal predecessors, (7830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:11:53,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3024 states to 3024 states and 7830 transitions. [2021-04-15 01:11:53,242 INFO L78 Accepts]: Start accepts. Automaton has 3024 states and 7830 transitions. Word has length 113 [2021-04-15 01:11:53,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:11:53,242 INFO L480 AbstractCegarLoop]: Abstraction has 3024 states and 7830 transitions. [2021-04-15 01:11:53,242 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:53,242 INFO L276 IsEmpty]: Start isEmpty. Operand 3024 states and 7830 transitions. [2021-04-15 01:11:53,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:11:53,244 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:11:53,245 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:11:53,245 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-04-15 01:11:53,245 INFO L428 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]=== [2021-04-15 01:11:53,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:11:53,245 INFO L82 PathProgramCache]: Analyzing trace with hash 178136876, now seen corresponding path program 46 times [2021-04-15 01:11:53,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:11:53,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887856816] [2021-04-15 01:11:53,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:11:53,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:11:53,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:11:53,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887856816] [2021-04-15 01:11:53,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:11:53,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-04-15 01:11:53,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533045257] [2021-04-15 01:11:53,577 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-15 01:11:53,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:11:53,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-15 01:11:53,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-04-15 01:11:53,577 INFO L87 Difference]: Start difference. First operand 3024 states and 7830 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) [2021-04-15 01:11:54,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:11:54,132 INFO L93 Difference]: Finished difference Result 3510 states and 8728 transitions. [2021-04-15 01:11:54,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 01:11:54,132 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 [2021-04-15 01:11:54,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:11:54,136 INFO L225 Difference]: With dead ends: 3510 [2021-04-15 01:11:54,136 INFO L226 Difference]: Without dead ends: 3435 [2021-04-15 01:11:54,136 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 527.0ms TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2021-04-15 01:11:54,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2021-04-15 01:11:54,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 2797. [2021-04-15 01:11:54,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 2796 states have (on average 2.5658082975679544) internal successors, (7174), 2796 states have internal predecessors, (7174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:11:54,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 7174 transitions. [2021-04-15 01:11:54,170 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 7174 transitions. Word has length 113 [2021-04-15 01:11:54,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:11:54,170 INFO L480 AbstractCegarLoop]: Abstraction has 2797 states and 7174 transitions. [2021-04-15 01:11:54,170 INFO L481 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) [2021-04-15 01:11:54,170 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 7174 transitions. [2021-04-15 01:11:54,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:11:54,173 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:11:54,173 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:11:54,173 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-04-15 01:11:54,173 INFO L428 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]=== [2021-04-15 01:11:54,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:11:54,173 INFO L82 PathProgramCache]: Analyzing trace with hash -989300778, now seen corresponding path program 47 times [2021-04-15 01:11:54,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:11:54,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74184098] [2021-04-15 01:11:54,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:11:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:11:55,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:11:55,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74184098] [2021-04-15 01:11:55,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:11:55,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:11:55,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983950018] [2021-04-15 01:11:55,102 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:11:55,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:11:55,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:11:55,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:11:55,103 INFO L87 Difference]: Start difference. First operand 2797 states and 7174 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:56,259 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2021-04-15 01:11:56,527 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2021-04-15 01:11:57,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:11:57,939 INFO L93 Difference]: Finished difference Result 3168 states and 8014 transitions. [2021-04-15 01:11:57,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 01:11:57,939 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:11:57,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:11:57,942 INFO L225 Difference]: With dead ends: 3168 [2021-04-15 01:11:57,942 INFO L226 Difference]: Without dead ends: 3023 [2021-04-15 01:11:57,943 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 2506.6ms TimeCoverageRelationStatistics Valid=456, Invalid=2300, Unknown=0, NotChecked=0, Total=2756 [2021-04-15 01:11:57,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3023 states. [2021-04-15 01:11:57,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3023 to 2929. [2021-04-15 01:11:57,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2929 states, 2928 states have (on average 2.5655737704918034) internal successors, (7512), 2928 states have internal predecessors, (7512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:11:57,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2929 states to 2929 states and 7512 transitions. [2021-04-15 01:11:57,974 INFO L78 Accepts]: Start accepts. Automaton has 2929 states and 7512 transitions. Word has length 113 [2021-04-15 01:11:57,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:11:57,974 INFO L480 AbstractCegarLoop]: Abstraction has 2929 states and 7512 transitions. [2021-04-15 01:11:57,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:57,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2929 states and 7512 transitions. [2021-04-15 01:11:57,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:11:57,977 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:11:57,977 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:11:57,977 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-04-15 01:11:57,977 INFO L428 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]=== [2021-04-15 01:11:57,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:11:57,977 INFO L82 PathProgramCache]: Analyzing trace with hash 974795692, now seen corresponding path program 48 times [2021-04-15 01:11:57,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:11:57,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776111892] [2021-04-15 01:11:57,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:11:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:11:58,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:11:58,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776111892] [2021-04-15 01:11:58,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:11:58,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:11:58,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705405628] [2021-04-15 01:11:58,874 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:11:58,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:11:58,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:11:58,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:11:58,875 INFO L87 Difference]: Start difference. First operand 2929 states and 7512 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:11:59,970 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2021-04-15 01:12:00,228 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2021-04-15 01:12:01,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:12:01,683 INFO L93 Difference]: Finished difference Result 3345 states and 8418 transitions. [2021-04-15 01:12:01,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-04-15 01:12:01,684 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:12:01,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:12:01,687 INFO L225 Difference]: With dead ends: 3345 [2021-04-15 01:12:01,687 INFO L226 Difference]: Without dead ends: 3094 [2021-04-15 01:12:01,687 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 2659.0ms TimeCoverageRelationStatistics Valid=488, Invalid=2374, Unknown=0, NotChecked=0, Total=2862 [2021-04-15 01:12:01,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3094 states. [2021-04-15 01:12:01,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3094 to 2962. [2021-04-15 01:12:01,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2962 states, 2961 states have (on average 2.5555555555555554) internal successors, (7567), 2961 states have internal predecessors, (7567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:12:01,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2962 states to 2962 states and 7567 transitions. [2021-04-15 01:12:01,719 INFO L78 Accepts]: Start accepts. Automaton has 2962 states and 7567 transitions. Word has length 113 [2021-04-15 01:12:01,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:12:01,719 INFO L480 AbstractCegarLoop]: Abstraction has 2962 states and 7567 transitions. [2021-04-15 01:12:01,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:12:01,719 INFO L276 IsEmpty]: Start isEmpty. Operand 2962 states and 7567 transitions. [2021-04-15 01:12:01,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:12:01,721 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:12:01,721 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:12:01,721 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-04-15 01:12:01,721 INFO L428 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]=== [2021-04-15 01:12:01,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:12:01,722 INFO L82 PathProgramCache]: Analyzing trace with hash 802193722, now seen corresponding path program 49 times [2021-04-15 01:12:01,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:12:01,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303995901] [2021-04-15 01:12:01,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:12:01,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:12:02,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:12:02,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303995901] [2021-04-15 01:12:02,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:12:02,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:12:02,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949109619] [2021-04-15 01:12:02,586 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:12:02,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:12:02,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:12:02,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:12:02,587 INFO L87 Difference]: Start difference. First operand 2962 states and 7567 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:12:03,754 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2021-04-15 01:12:04,106 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2021-04-15 01:12:05,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:12:05,646 INFO L93 Difference]: Finished difference Result 3191 states and 8001 transitions. [2021-04-15 01:12:05,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-04-15 01:12:05,646 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:12:05,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:12:05,650 INFO L225 Difference]: With dead ends: 3191 [2021-04-15 01:12:05,650 INFO L226 Difference]: Without dead ends: 2907 [2021-04-15 01:12:05,650 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 2733.6ms TimeCoverageRelationStatistics Valid=490, Invalid=2480, Unknown=0, NotChecked=0, Total=2970 [2021-04-15 01:12:05,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2021-04-15 01:12:05,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 2775. [2021-04-15 01:12:05,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2775 states, 2774 states have (on average 2.566330209084355) internal successors, (7119), 2774 states have internal predecessors, (7119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:12:05,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 7119 transitions. [2021-04-15 01:12:05,677 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 7119 transitions. Word has length 113 [2021-04-15 01:12:05,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:12:05,677 INFO L480 AbstractCegarLoop]: Abstraction has 2775 states and 7119 transitions. [2021-04-15 01:12:05,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:12:05,677 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 7119 transitions. [2021-04-15 01:12:05,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:12:05,679 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:12:05,679 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:12:05,680 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-04-15 01:12:05,680 INFO L428 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]=== [2021-04-15 01:12:05,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:12:05,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1908071742, now seen corresponding path program 50 times [2021-04-15 01:12:05,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:12:05,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496272850] [2021-04-15 01:12:05,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:12:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:12:06,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:12:06,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496272850] [2021-04-15 01:12:06,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:12:06,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:12:06,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126734467] [2021-04-15 01:12:06,539 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:12:06,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:12:06,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:12:06,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:12:06,540 INFO L87 Difference]: Start difference. First operand 2775 states and 7119 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:12:07,485 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2021-04-15 01:12:07,641 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2021-04-15 01:12:07,905 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2021-04-15 01:12:08,212 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2021-04-15 01:12:09,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:12:09,245 INFO L93 Difference]: Finished difference Result 2922 states and 7389 transitions. [2021-04-15 01:12:09,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 01:12:09,246 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:12:09,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:12:09,248 INFO L225 Difference]: With dead ends: 2922 [2021-04-15 01:12:09,248 INFO L226 Difference]: Without dead ends: 2764 [2021-04-15 01:12:09,249 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 2565.2ms TimeCoverageRelationStatistics Valid=468, Invalid=2288, Unknown=0, NotChecked=0, Total=2756 [2021-04-15 01:12:09,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2021-04-15 01:12:09,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2764. [2021-04-15 01:12:09,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2764 states, 2763 states have (on average 2.5685848715164674) internal successors, (7097), 2763 states have internal predecessors, (7097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:12:09,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2764 states to 2764 states and 7097 transitions. [2021-04-15 01:12:09,278 INFO L78 Accepts]: Start accepts. Automaton has 2764 states and 7097 transitions. Word has length 113 [2021-04-15 01:12:09,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:12:09,278 INFO L480 AbstractCegarLoop]: Abstraction has 2764 states and 7097 transitions. [2021-04-15 01:12:09,278 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:12:09,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2764 states and 7097 transitions. [2021-04-15 01:12:09,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:12:09,280 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:12:09,280 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:12:09,280 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-04-15 01:12:09,280 INFO L428 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]=== [2021-04-15 01:12:09,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:12:09,281 INFO L82 PathProgramCache]: Analyzing trace with hash -405070928, now seen corresponding path program 51 times [2021-04-15 01:12:09,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:12:09,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137399718] [2021-04-15 01:12:09,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:12:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:12:10,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:12:10,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137399718] [2021-04-15 01:12:10,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:12:10,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:12:10,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052973301] [2021-04-15 01:12:10,151 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:12:10,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:12:10,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:12:10,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:12:10,152 INFO L87 Difference]: Start difference. First operand 2764 states and 7097 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:12:11,241 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2021-04-15 01:12:11,598 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2021-04-15 01:12:11,819 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 68 [2021-04-15 01:12:12,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:12:12,777 INFO L93 Difference]: Finished difference Result 2953 states and 7440 transitions. [2021-04-15 01:12:12,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 01:12:12,778 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:12:12,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:12:12,780 INFO L225 Difference]: With dead ends: 2953 [2021-04-15 01:12:12,780 INFO L226 Difference]: Without dead ends: 2709 [2021-04-15 01:12:12,781 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 2494.1ms TimeCoverageRelationStatistics Valid=451, Invalid=2201, Unknown=0, NotChecked=0, Total=2652 [2021-04-15 01:12:12,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2709 states. [2021-04-15 01:12:12,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2709 to 2709. [2021-04-15 01:12:12,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2709 states, 2708 states have (on average 2.5805022156573116) internal successors, (6988), 2708 states have internal predecessors, (6988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:12:12,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2709 states to 2709 states and 6988 transitions. [2021-04-15 01:12:12,807 INFO L78 Accepts]: Start accepts. Automaton has 2709 states and 6988 transitions. Word has length 113 [2021-04-15 01:12:12,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:12:12,807 INFO L480 AbstractCegarLoop]: Abstraction has 2709 states and 6988 transitions. [2021-04-15 01:12:12,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:12:12,807 INFO L276 IsEmpty]: Start isEmpty. Operand 2709 states and 6988 transitions. [2021-04-15 01:12:12,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:12:12,809 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:12:12,809 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:12:12,809 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-04-15 01:12:12,809 INFO L428 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]=== [2021-04-15 01:12:12,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:12:12,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1401443980, now seen corresponding path program 52 times [2021-04-15 01:12:12,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:12:12,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978983302] [2021-04-15 01:12:12,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:12:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:12:13,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:12:13,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978983302] [2021-04-15 01:12:13,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:12:13,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:12:13,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584505517] [2021-04-15 01:12:13,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:12:13,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:12:13,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:12:13,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:12:13,648 INFO L87 Difference]: Start difference. First operand 2709 states and 6988 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:12:14,938 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-04-15 01:12:15,093 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2021-04-15 01:12:15,312 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2021-04-15 01:12:16,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:12:16,290 INFO L93 Difference]: Finished difference Result 2944 states and 7444 transitions. [2021-04-15 01:12:16,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 01:12:16,291 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:12:16,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:12:16,294 INFO L225 Difference]: With dead ends: 2944 [2021-04-15 01:12:16,294 INFO L226 Difference]: Without dead ends: 2714 [2021-04-15 01:12:16,294 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 2415.1ms TimeCoverageRelationStatistics Valid=451, Invalid=2201, Unknown=0, NotChecked=0, Total=2652 [2021-04-15 01:12:16,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2714 states. [2021-04-15 01:12:16,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2714 to 2666. [2021-04-15 01:12:16,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2666 states, 2665 states have (on average 2.5834896810506565) internal successors, (6885), 2665 states have internal predecessors, (6885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:12:16,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2666 states to 2666 states and 6885 transitions. [2021-04-15 01:12:16,321 INFO L78 Accepts]: Start accepts. Automaton has 2666 states and 6885 transitions. Word has length 113 [2021-04-15 01:12:16,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:12:16,321 INFO L480 AbstractCegarLoop]: Abstraction has 2666 states and 6885 transitions. [2021-04-15 01:12:16,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:12:16,321 INFO L276 IsEmpty]: Start isEmpty. Operand 2666 states and 6885 transitions. [2021-04-15 01:12:16,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:12:16,323 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:12:16,323 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:12:16,323 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-04-15 01:12:16,323 INFO L428 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]=== [2021-04-15 01:12:16,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:12:16,323 INFO L82 PathProgramCache]: Analyzing trace with hash 573228558, now seen corresponding path program 53 times [2021-04-15 01:12:16,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:12:16,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315380477] [2021-04-15 01:12:16,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:12:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:12:16,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:12:16,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315380477] [2021-04-15 01:12:16,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:12:16,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-04-15 01:12:16,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912746832] [2021-04-15 01:12:16,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-15 01:12:16,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:12:16,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-15 01:12:16,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-04-15 01:12:16,599 INFO L87 Difference]: Start difference. First operand 2666 states and 6885 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) [2021-04-15 01:12:17,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:12:17,213 INFO L93 Difference]: Finished difference Result 5121 states and 13025 transitions. [2021-04-15 01:12:17,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 01:12:17,214 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 [2021-04-15 01:12:17,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:12:17,218 INFO L225 Difference]: With dead ends: 5121 [2021-04-15 01:12:17,218 INFO L226 Difference]: Without dead ends: 5121 [2021-04-15 01:12:17,218 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 506.0ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-04-15 01:12:17,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5121 states. [2021-04-15 01:12:17,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5121 to 2824. [2021-04-15 01:12:17,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2824 states, 2823 states have (on average 2.5827134254339357) internal successors, (7291), 2823 states have internal predecessors, (7291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:12:17,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2824 states to 2824 states and 7291 transitions. [2021-04-15 01:12:17,256 INFO L78 Accepts]: Start accepts. Automaton has 2824 states and 7291 transitions. Word has length 113 [2021-04-15 01:12:17,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:12:17,256 INFO L480 AbstractCegarLoop]: Abstraction has 2824 states and 7291 transitions. [2021-04-15 01:12:17,256 INFO L481 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) [2021-04-15 01:12:17,256 INFO L276 IsEmpty]: Start isEmpty. Operand 2824 states and 7291 transitions. [2021-04-15 01:12:17,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:12:17,258 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:12:17,259 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:12:17,259 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-04-15 01:12:17,259 INFO L428 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]=== [2021-04-15 01:12:17,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:12:17,259 INFO L82 PathProgramCache]: Analyzing trace with hash 431818348, now seen corresponding path program 54 times [2021-04-15 01:12:17,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:12:17,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379248019] [2021-04-15 01:12:17,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:12:17,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:12:17,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:12:17,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379248019] [2021-04-15 01:12:17,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:12:17,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:12:17,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604984284] [2021-04-15 01:12:17,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:12:17,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:12:17,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:12:17,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:12:17,993 INFO L87 Difference]: Start difference. First operand 2824 states and 7291 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:12:19,000 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-04-15 01:12:19,365 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-04-15 01:12:19,538 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-04-15 01:12:19,777 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2021-04-15 01:12:21,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:12:21,617 INFO L93 Difference]: Finished difference Result 3671 states and 9192 transitions. [2021-04-15 01:12:21,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-04-15 01:12:21,617 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:12:21,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:12:21,620 INFO L225 Difference]: With dead ends: 3671 [2021-04-15 01:12:21,620 INFO L226 Difference]: Without dead ends: 3414 [2021-04-15 01:12:21,620 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 3022.7ms TimeCoverageRelationStatistics Valid=578, Invalid=2614, Unknown=0, NotChecked=0, Total=3192 [2021-04-15 01:12:21,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3414 states. [2021-04-15 01:12:21,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3414 to 2884. [2021-04-15 01:12:21,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2884 states, 2883 states have (on average 2.5723204994797086) internal successors, (7416), 2883 states have internal predecessors, (7416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:12:21,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2884 states to 2884 states and 7416 transitions. [2021-04-15 01:12:21,652 INFO L78 Accepts]: Start accepts. Automaton has 2884 states and 7416 transitions. Word has length 113 [2021-04-15 01:12:21,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:12:21,652 INFO L480 AbstractCegarLoop]: Abstraction has 2884 states and 7416 transitions. [2021-04-15 01:12:21,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:12:21,652 INFO L276 IsEmpty]: Start isEmpty. Operand 2884 states and 7416 transitions. [2021-04-15 01:12:21,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:12:21,654 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:12:21,654 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:12:21,654 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-04-15 01:12:21,654 INFO L428 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]=== [2021-04-15 01:12:21,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:12:21,654 INFO L82 PathProgramCache]: Analyzing trace with hash -1899214104, now seen corresponding path program 55 times [2021-04-15 01:12:21,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:12:21,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453767879] [2021-04-15 01:12:21,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:12:21,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:12:22,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:12:22,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453767879] [2021-04-15 01:12:22,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:12:22,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:12:22,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86702940] [2021-04-15 01:12:22,346 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:12:22,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:12:22,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:12:22,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:12:22,346 INFO L87 Difference]: Start difference. First operand 2884 states and 7416 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:12:23,362 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-04-15 01:12:23,716 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-04-15 01:12:23,914 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2021-04-15 01:12:24,757 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2021-04-15 01:12:25,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:12:25,712 INFO L93 Difference]: Finished difference Result 3698 states and 9223 transitions. [2021-04-15 01:12:25,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-04-15 01:12:25,713 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:12:25,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:12:25,716 INFO L225 Difference]: With dead ends: 3698 [2021-04-15 01:12:25,716 INFO L226 Difference]: Without dead ends: 3501 [2021-04-15 01:12:25,716 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 2853.4ms TimeCoverageRelationStatistics Valid=518, Invalid=2452, Unknown=0, NotChecked=0, Total=2970 [2021-04-15 01:12:25,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3501 states. [2021-04-15 01:12:25,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3501 to 2887. [2021-04-15 01:12:25,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2887 states, 2886 states have (on average 2.571032571032571) internal successors, (7420), 2886 states have internal predecessors, (7420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:12:25,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2887 states to 2887 states and 7420 transitions. [2021-04-15 01:12:25,749 INFO L78 Accepts]: Start accepts. Automaton has 2887 states and 7420 transitions. Word has length 113 [2021-04-15 01:12:25,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:12:25,749 INFO L480 AbstractCegarLoop]: Abstraction has 2887 states and 7420 transitions. [2021-04-15 01:12:25,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:12:25,749 INFO L276 IsEmpty]: Start isEmpty. Operand 2887 states and 7420 transitions. [2021-04-15 01:12:25,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:12:25,751 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:12:25,751 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:12:25,751 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-04-15 01:12:25,751 INFO L428 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]=== [2021-04-15 01:12:25,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:12:25,752 INFO L82 PathProgramCache]: Analyzing trace with hash 769220814, now seen corresponding path program 56 times [2021-04-15 01:12:25,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:12:25,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398215294] [2021-04-15 01:12:25,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:12:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:12:26,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:12:26,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398215294] [2021-04-15 01:12:26,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:12:26,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:12:26,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611127837] [2021-04-15 01:12:26,522 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:12:26,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:12:26,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:12:26,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:12:26,523 INFO L87 Difference]: Start difference. First operand 2887 states and 7420 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:12:27,529 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-04-15 01:12:27,889 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-04-15 01:12:28,090 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2021-04-15 01:12:28,265 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2021-04-15 01:12:28,418 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-04-15 01:12:29,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:12:29,520 INFO L93 Difference]: Finished difference Result 3450 states and 8744 transitions. [2021-04-15 01:12:29,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 01:12:29,521 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:12:29,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:12:29,524 INFO L225 Difference]: With dead ends: 3450 [2021-04-15 01:12:29,524 INFO L226 Difference]: Without dead ends: 3260 [2021-04-15 01:12:29,525 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 2622.7ms TimeCoverageRelationStatistics Valid=441, Invalid=2109, Unknown=0, NotChecked=0, Total=2550 [2021-04-15 01:12:29,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3260 states. [2021-04-15 01:12:29,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3260 to 2877. [2021-04-15 01:12:29,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2877 states, 2876 states have (on average 2.57336578581363) internal successors, (7401), 2876 states have internal predecessors, (7401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:12:29,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2877 states to 2877 states and 7401 transitions. [2021-04-15 01:12:29,577 INFO L78 Accepts]: Start accepts. Automaton has 2877 states and 7401 transitions. Word has length 113 [2021-04-15 01:12:29,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:12:29,577 INFO L480 AbstractCegarLoop]: Abstraction has 2877 states and 7401 transitions. [2021-04-15 01:12:29,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:12:29,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2877 states and 7401 transitions. [2021-04-15 01:12:29,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:12:29,580 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:12:29,580 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:12:29,580 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-04-15 01:12:29,580 INFO L428 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]=== [2021-04-15 01:12:29,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:12:29,580 INFO L82 PathProgramCache]: Analyzing trace with hash -491951994, now seen corresponding path program 57 times [2021-04-15 01:12:29,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:12:29,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100281350] [2021-04-15 01:12:29,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:12:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:12:30,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:12:30,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100281350] [2021-04-15 01:12:30,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:12:30,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:12:30,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250567499] [2021-04-15 01:12:30,410 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:12:30,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:12:30,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:12:30,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:12:30,410 INFO L87 Difference]: Start difference. First operand 2877 states and 7401 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:12:31,556 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2021-04-15 01:12:31,989 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 62 [2021-04-15 01:12:32,193 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2021-04-15 01:12:33,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:12:33,971 INFO L93 Difference]: Finished difference Result 4016 states and 10178 transitions. [2021-04-15 01:12:33,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-04-15 01:12:33,972 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:12:33,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:12:33,977 INFO L225 Difference]: With dead ends: 4016 [2021-04-15 01:12:33,977 INFO L226 Difference]: Without dead ends: 3759 [2021-04-15 01:12:33,977 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 3033.0ms TimeCoverageRelationStatistics Valid=580, Invalid=2612, Unknown=0, NotChecked=0, Total=3192 [2021-04-15 01:12:33,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3759 states. [2021-04-15 01:12:34,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3759 to 3053. [2021-04-15 01:12:34,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3053 states, 3052 states have (on average 2.5969855832241153) internal successors, (7926), 3052 states have internal predecessors, (7926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:12:34,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3053 states to 3053 states and 7926 transitions. [2021-04-15 01:12:34,009 INFO L78 Accepts]: Start accepts. Automaton has 3053 states and 7926 transitions. Word has length 113 [2021-04-15 01:12:34,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:12:34,010 INFO L480 AbstractCegarLoop]: Abstraction has 3053 states and 7926 transitions. [2021-04-15 01:12:34,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:12:34,010 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states and 7926 transitions. [2021-04-15 01:12:34,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:12:34,012 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:12:34,012 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:12:34,012 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-04-15 01:12:34,012 INFO L428 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]=== [2021-04-15 01:12:34,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:12:34,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1182150778, now seen corresponding path program 58 times [2021-04-15 01:12:34,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:12:34,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406814624] [2021-04-15 01:12:34,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:12:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:12:34,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:12:34,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406814624] [2021-04-15 01:12:34,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:12:34,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:12:34,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042902411] [2021-04-15 01:12:34,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:12:34,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:12:34,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:12:34,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:12:34,836 INFO L87 Difference]: Start difference. First operand 3053 states and 7926 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:12:35,948 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2021-04-15 01:12:36,208 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-04-15 01:12:38,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:12:38,380 INFO L93 Difference]: Finished difference Result 4982 states and 12798 transitions. [2021-04-15 01:12:38,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-04-15 01:12:38,380 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:12:38,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:12:38,384 INFO L225 Difference]: With dead ends: 4982 [2021-04-15 01:12:38,384 INFO L226 Difference]: Without dead ends: 4591 [2021-04-15 01:12:38,384 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 3073.9ms TimeCoverageRelationStatistics Valid=621, Invalid=2919, Unknown=0, NotChecked=0, Total=3540 [2021-04-15 01:12:38,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4591 states. [2021-04-15 01:12:38,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4591 to 3405. [2021-04-15 01:12:38,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3405 states, 3404 states have (on average 2.596650998824912) internal successors, (8839), 3404 states have internal predecessors, (8839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:12:38,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3405 states to 3405 states and 8839 transitions. [2021-04-15 01:12:38,425 INFO L78 Accepts]: Start accepts. Automaton has 3405 states and 8839 transitions. Word has length 113 [2021-04-15 01:12:38,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:12:38,425 INFO L480 AbstractCegarLoop]: Abstraction has 3405 states and 8839 transitions. [2021-04-15 01:12:38,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:12:38,425 INFO L276 IsEmpty]: Start isEmpty. Operand 3405 states and 8839 transitions. [2021-04-15 01:12:38,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:12:38,428 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:12:38,429 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:12:38,429 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-04-15 01:12:38,429 INFO L428 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]=== [2021-04-15 01:12:38,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:12:38,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1502532060, now seen corresponding path program 59 times [2021-04-15 01:12:38,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:12:38,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387242024] [2021-04-15 01:12:38,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:12:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:12:39,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:12:39,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387242024] [2021-04-15 01:12:39,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:12:39,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:12:39,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666900603] [2021-04-15 01:12:39,290 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:12:39,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:12:39,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:12:39,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:12:39,291 INFO L87 Difference]: Start difference. First operand 3405 states and 8839 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:12:40,460 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2021-04-15 01:12:40,736 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-04-15 01:12:43,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:12:43,139 INFO L93 Difference]: Finished difference Result 4722 states and 12061 transitions. [2021-04-15 01:12:43,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-04-15 01:12:43,140 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:12:43,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:12:43,144 INFO L225 Difference]: With dead ends: 4722 [2021-04-15 01:12:43,144 INFO L226 Difference]: Without dead ends: 4536 [2021-04-15 01:12:43,144 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 3339.6ms TimeCoverageRelationStatistics Valid=642, Invalid=3140, Unknown=0, NotChecked=0, Total=3782 [2021-04-15 01:12:43,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4536 states. [2021-04-15 01:12:43,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4536 to 3350. [2021-04-15 01:12:43,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3350 states, 3349 states have (on average 2.5933114362496266) internal successors, (8685), 3349 states have internal predecessors, (8685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:12:43,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3350 states to 3350 states and 8685 transitions. [2021-04-15 01:12:43,185 INFO L78 Accepts]: Start accepts. Automaton has 3350 states and 8685 transitions. Word has length 113 [2021-04-15 01:12:43,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:12:43,185 INFO L480 AbstractCegarLoop]: Abstraction has 3350 states and 8685 transitions. [2021-04-15 01:12:43,185 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:12:43,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3350 states and 8685 transitions. [2021-04-15 01:12:43,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:12:43,188 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:12:43,188 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:12:43,188 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-04-15 01:12:43,188 INFO L428 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]=== [2021-04-15 01:12:43,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:12:43,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1349772148, now seen corresponding path program 60 times [2021-04-15 01:12:43,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:12:43,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451529331] [2021-04-15 01:12:43,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:12:43,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:12:44,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:12:44,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451529331] [2021-04-15 01:12:44,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:12:44,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:12:44,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887264378] [2021-04-15 01:12:44,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:12:44,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:12:44,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:12:44,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:12:44,042 INFO L87 Difference]: Start difference. First operand 3350 states and 8685 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:12:45,087 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-04-15 01:12:45,265 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2021-04-15 01:12:45,574 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-04-15 01:12:47,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:12:47,924 INFO L93 Difference]: Finished difference Result 4734 states and 12032 transitions. [2021-04-15 01:12:47,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-04-15 01:12:47,925 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:12:47,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:12:47,929 INFO L225 Difference]: With dead ends: 4734 [2021-04-15 01:12:47,929 INFO L226 Difference]: Without dead ends: 4297 [2021-04-15 01:12:47,929 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 3187.5ms TimeCoverageRelationStatistics Valid=582, Invalid=2958, Unknown=0, NotChecked=0, Total=3540 [2021-04-15 01:12:47,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4297 states. [2021-04-15 01:12:47,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4297 to 3108. [2021-04-15 01:12:47,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3108 states, 3107 states have (on average 2.582877373672353) internal successors, (8025), 3107 states have internal predecessors, (8025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:12:47,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3108 states to 3108 states and 8025 transitions. [2021-04-15 01:12:47,966 INFO L78 Accepts]: Start accepts. Automaton has 3108 states and 8025 transitions. Word has length 113 [2021-04-15 01:12:47,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:12:47,967 INFO L480 AbstractCegarLoop]: Abstraction has 3108 states and 8025 transitions. [2021-04-15 01:12:47,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:12:47,967 INFO L276 IsEmpty]: Start isEmpty. Operand 3108 states and 8025 transitions. [2021-04-15 01:12:47,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:12:47,969 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:12:47,969 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:12:47,969 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-04-15 01:12:47,969 INFO L428 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]=== [2021-04-15 01:12:47,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:12:47,970 INFO L82 PathProgramCache]: Analyzing trace with hash 2137921484, now seen corresponding path program 61 times [2021-04-15 01:12:47,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:12:47,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632168996] [2021-04-15 01:12:47,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:12:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:12:48,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:12:48,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632168996] [2021-04-15 01:12:48,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:12:48,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:12:48,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932906994] [2021-04-15 01:12:48,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:12:48,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:12:48,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:12:48,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:12:48,815 INFO L87 Difference]: Start difference. First operand 3108 states and 8025 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:12:50,000 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2021-04-15 01:12:50,285 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-04-15 01:12:50,767 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2021-04-15 01:12:52,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:12:52,633 INFO L93 Difference]: Finished difference Result 4043 states and 10280 transitions. [2021-04-15 01:12:52,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-04-15 01:12:52,633 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:12:52,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:12:52,637 INFO L225 Difference]: With dead ends: 4043 [2021-04-15 01:12:52,637 INFO L226 Difference]: Without dead ends: 3802 [2021-04-15 01:12:52,638 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 3176.5ms TimeCoverageRelationStatistics Valid=631, Invalid=2909, Unknown=0, NotChecked=0, Total=3540 [2021-04-15 01:12:52,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3802 states. [2021-04-15 01:12:52,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3802 to 3064. [2021-04-15 01:12:52,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3064 states, 3063 states have (on average 2.585047339209925) internal successors, (7918), 3063 states have internal predecessors, (7918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:12:52,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3064 states to 3064 states and 7918 transitions. [2021-04-15 01:12:52,676 INFO L78 Accepts]: Start accepts. Automaton has 3064 states and 7918 transitions. Word has length 113 [2021-04-15 01:12:52,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:12:52,677 INFO L480 AbstractCegarLoop]: Abstraction has 3064 states and 7918 transitions. [2021-04-15 01:12:52,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:12:52,677 INFO L276 IsEmpty]: Start isEmpty. Operand 3064 states and 7918 transitions. [2021-04-15 01:12:52,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:12:52,679 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:12:52,679 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:12:52,680 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-04-15 01:12:52,680 INFO L428 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]=== [2021-04-15 01:12:52,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:12:52,680 INFO L82 PathProgramCache]: Analyzing trace with hash -570189204, now seen corresponding path program 62 times [2021-04-15 01:12:52,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:12:52,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133123608] [2021-04-15 01:12:52,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:12:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:12:53,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:12:53,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133123608] [2021-04-15 01:12:53,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:12:53,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:12:53,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272655639] [2021-04-15 01:12:53,512 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:12:53,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:12:53,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:12:53,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:12:53,513 INFO L87 Difference]: Start difference. First operand 3064 states and 7918 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:12:54,740 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-04-15 01:12:55,654 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 57 [2021-04-15 01:12:56,059 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 58 [2021-04-15 01:12:57,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:12:57,232 INFO L93 Difference]: Finished difference Result 4664 states and 11839 transitions. [2021-04-15 01:12:57,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-04-15 01:12:57,232 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:12:57,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:12:57,236 INFO L225 Difference]: With dead ends: 4664 [2021-04-15 01:12:57,236 INFO L226 Difference]: Without dead ends: 4504 [2021-04-15 01:12:57,237 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 3086.8ms TimeCoverageRelationStatistics Valid=545, Invalid=2877, Unknown=0, NotChecked=0, Total=3422 [2021-04-15 01:12:57,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4504 states. [2021-04-15 01:12:57,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4504 to 3097. [2021-04-15 01:12:57,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3097 states, 3096 states have (on average 2.5843023255813953) internal successors, (8001), 3096 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) [2021-04-15 01:12:57,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3097 states to 3097 states and 8001 transitions. [2021-04-15 01:12:57,277 INFO L78 Accepts]: Start accepts. Automaton has 3097 states and 8001 transitions. Word has length 113 [2021-04-15 01:12:57,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:12:57,277 INFO L480 AbstractCegarLoop]: Abstraction has 3097 states and 8001 transitions. [2021-04-15 01:12:57,278 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:12:57,278 INFO L276 IsEmpty]: Start isEmpty. Operand 3097 states and 8001 transitions. [2021-04-15 01:12:57,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:12:57,280 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:12:57,280 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:12:57,280 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-04-15 01:12:57,280 INFO L428 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]=== [2021-04-15 01:12:57,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:12:57,281 INFO L82 PathProgramCache]: Analyzing trace with hash -480175806, now seen corresponding path program 63 times [2021-04-15 01:12:57,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:12:57,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011405970] [2021-04-15 01:12:57,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:12:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:12:58,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:12:58,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011405970] [2021-04-15 01:12:58,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:12:58,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:12:58,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407430558] [2021-04-15 01:12:58,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:12:58,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:12:58,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:12:58,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:12:58,069 INFO L87 Difference]: Start difference. First operand 3097 states and 8001 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:12:59,305 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-04-15 01:13:01,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:13:01,332 INFO L93 Difference]: Finished difference Result 4883 states and 12452 transitions. [2021-04-15 01:13:01,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-04-15 01:13:01,333 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:13:01,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:13:01,337 INFO L225 Difference]: With dead ends: 4883 [2021-04-15 01:13:01,338 INFO L226 Difference]: Without dead ends: 4632 [2021-04-15 01:13:01,338 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 2760.3ms TimeCoverageRelationStatistics Valid=522, Invalid=2558, Unknown=0, NotChecked=0, Total=3080 [2021-04-15 01:13:01,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2021-04-15 01:13:01,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 3284. [2021-04-15 01:13:01,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3284 states, 3283 states have (on average 2.5744745659457813) internal successors, (8452), 3283 states have internal predecessors, (8452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:13:01,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3284 states to 3284 states and 8452 transitions. [2021-04-15 01:13:01,380 INFO L78 Accepts]: Start accepts. Automaton has 3284 states and 8452 transitions. Word has length 113 [2021-04-15 01:13:01,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:13:01,380 INFO L480 AbstractCegarLoop]: Abstraction has 3284 states and 8452 transitions. [2021-04-15 01:13:01,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:01,380 INFO L276 IsEmpty]: Start isEmpty. Operand 3284 states and 8452 transitions. [2021-04-15 01:13:01,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:13:01,383 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:13:01,383 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:13:01,383 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-04-15 01:13:01,383 INFO L428 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]=== [2021-04-15 01:13:01,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:13:01,384 INFO L82 PathProgramCache]: Analyzing trace with hash 728249558, now seen corresponding path program 64 times [2021-04-15 01:13:01,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:13:01,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361973502] [2021-04-15 01:13:01,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:13:01,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:13:02,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:13:02,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361973502] [2021-04-15 01:13:02,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:13:02,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:13:02,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136779030] [2021-04-15 01:13:02,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:13:02,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:13:02,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:13:02,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:13:02,221 INFO L87 Difference]: Start difference. First operand 3284 states and 8452 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:05,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:13:05,462 INFO L93 Difference]: Finished difference Result 4729 states and 12035 transitions. [2021-04-15 01:13:05,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-04-15 01:13:05,462 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:13:05,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:13:05,467 INFO L225 Difference]: With dead ends: 4729 [2021-04-15 01:13:05,467 INFO L226 Difference]: Without dead ends: 4599 [2021-04-15 01:13:05,467 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 2839.3ms TimeCoverageRelationStatistics Valid=524, Invalid=2668, Unknown=0, NotChecked=0, Total=3192 [2021-04-15 01:13:05,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4599 states. [2021-04-15 01:13:05,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4599 to 3251. [2021-04-15 01:13:05,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3251 states, 3250 states have (on average 2.5735384615384613) internal successors, (8364), 3250 states have internal predecessors, (8364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:13:05,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3251 states to 3251 states and 8364 transitions. [2021-04-15 01:13:05,508 INFO L78 Accepts]: Start accepts. Automaton has 3251 states and 8364 transitions. Word has length 113 [2021-04-15 01:13:05,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:13:05,508 INFO L480 AbstractCegarLoop]: Abstraction has 3251 states and 8364 transitions. [2021-04-15 01:13:05,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:05,508 INFO L276 IsEmpty]: Start isEmpty. Operand 3251 states and 8364 transitions. [2021-04-15 01:13:05,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:13:05,511 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:13:05,511 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:13:05,511 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-04-15 01:13:05,511 INFO L428 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]=== [2021-04-15 01:13:05,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:13:05,511 INFO L82 PathProgramCache]: Analyzing trace with hash 373282856, now seen corresponding path program 65 times [2021-04-15 01:13:05,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:13:05,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569194465] [2021-04-15 01:13:05,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:13:05,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:13:06,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:13:06,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569194465] [2021-04-15 01:13:06,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:13:06,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:13:06,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682700507] [2021-04-15 01:13:06,315 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:13:06,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:13:06,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:13:06,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:13:06,315 INFO L87 Difference]: Start difference. First operand 3251 states and 8364 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:07,537 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-04-15 01:13:08,489 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2021-04-15 01:13:08,831 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2021-04-15 01:13:09,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:13:09,595 INFO L93 Difference]: Finished difference Result 4662 states and 11892 transitions. [2021-04-15 01:13:09,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-04-15 01:13:09,596 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:13:09,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:13:09,600 INFO L225 Difference]: With dead ends: 4662 [2021-04-15 01:13:09,600 INFO L226 Difference]: Without dead ends: 4308 [2021-04-15 01:13:09,600 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 2736.1ms TimeCoverageRelationStatistics Valid=490, Invalid=2480, Unknown=0, NotChecked=0, Total=2970 [2021-04-15 01:13:09,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4308 states. [2021-04-15 01:13:09,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4308 to 3042. [2021-04-15 01:13:09,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3042 states, 3041 states have (on average 2.5784281486353176) internal successors, (7841), 3041 states have internal predecessors, (7841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:13:09,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3042 states to 3042 states and 7841 transitions. [2021-04-15 01:13:09,638 INFO L78 Accepts]: Start accepts. Automaton has 3042 states and 7841 transitions. Word has length 113 [2021-04-15 01:13:09,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:13:09,638 INFO L480 AbstractCegarLoop]: Abstraction has 3042 states and 7841 transitions. [2021-04-15 01:13:09,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:09,638 INFO L276 IsEmpty]: Start isEmpty. Operand 3042 states and 7841 transitions. [2021-04-15 01:13:09,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:13:09,640 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:13:09,641 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:13:09,641 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-04-15 01:13:09,641 INFO L428 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]=== [2021-04-15 01:13:09,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:13:09,641 INFO L82 PathProgramCache]: Analyzing trace with hash 148426362, now seen corresponding path program 66 times [2021-04-15 01:13:09,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:13:09,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600398362] [2021-04-15 01:13:09,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:13:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:13:10,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:13:10,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600398362] [2021-04-15 01:13:10,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:13:10,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:13:10,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103413256] [2021-04-15 01:13:10,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:13:10,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:13:10,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:13:10,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:13:10,515 INFO L87 Difference]: Start difference. First operand 3042 states and 7841 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:11,735 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-04-15 01:13:12,165 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-04-15 01:13:12,522 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2021-04-15 01:13:13,067 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2021-04-15 01:13:14,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:13:14,106 INFO L93 Difference]: Finished difference Result 3991 states and 10110 transitions. [2021-04-15 01:13:14,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-04-15 01:13:14,106 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:13:14,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:13:14,110 INFO L225 Difference]: With dead ends: 3991 [2021-04-15 01:13:14,110 INFO L226 Difference]: Without dead ends: 3831 [2021-04-15 01:13:14,110 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 3104.4ms TimeCoverageRelationStatistics Valid=584, Invalid=2838, Unknown=0, NotChecked=0, Total=3422 [2021-04-15 01:13:14,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3831 states. [2021-04-15 01:13:14,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3831 to 3044. [2021-04-15 01:13:14,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3044 states, 3043 states have (on average 2.5777193558987843) internal successors, (7844), 3043 states have internal predecessors, (7844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:13:14,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3044 states to 3044 states and 7844 transitions. [2021-04-15 01:13:14,148 INFO L78 Accepts]: Start accepts. Automaton has 3044 states and 7844 transitions. Word has length 113 [2021-04-15 01:13:14,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:13:14,148 INFO L480 AbstractCegarLoop]: Abstraction has 3044 states and 7844 transitions. [2021-04-15 01:13:14,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:14,148 INFO L276 IsEmpty]: Start isEmpty. Operand 3044 states and 7844 transitions. [2021-04-15 01:13:14,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:13:14,150 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:13:14,151 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:13:14,151 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-04-15 01:13:14,151 INFO L428 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]=== [2021-04-15 01:13:14,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:13:14,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1265530196, now seen corresponding path program 67 times [2021-04-15 01:13:14,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:13:14,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112476472] [2021-04-15 01:13:14,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:13:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:13:15,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:13:15,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112476472] [2021-04-15 01:13:15,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:13:15,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:13:15,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296690423] [2021-04-15 01:13:15,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:13:15,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:13:15,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:13:15,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:13:15,078 INFO L87 Difference]: Start difference. First operand 3044 states and 7844 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:16,068 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-04-15 01:13:16,306 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-04-15 01:13:16,720 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-04-15 01:13:16,880 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-04-15 01:13:17,021 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-04-15 01:13:18,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:13:18,127 INFO L93 Difference]: Finished difference Result 3781 states and 9693 transitions. [2021-04-15 01:13:18,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-04-15 01:13:18,128 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:13:18,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:13:18,132 INFO L225 Difference]: With dead ends: 3781 [2021-04-15 01:13:18,132 INFO L226 Difference]: Without dead ends: 3632 [2021-04-15 01:13:18,132 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 2834.8ms TimeCoverageRelationStatistics Valid=487, Invalid=2375, Unknown=0, NotChecked=0, Total=2862 [2021-04-15 01:13:18,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3632 states. [2021-04-15 01:13:18,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3632 to 3042. [2021-04-15 01:13:18,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3042 states, 3041 states have (on average 2.578099309437685) internal successors, (7840), 3041 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) [2021-04-15 01:13:18,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3042 states to 3042 states and 7840 transitions. [2021-04-15 01:13:18,167 INFO L78 Accepts]: Start accepts. Automaton has 3042 states and 7840 transitions. Word has length 113 [2021-04-15 01:13:18,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:13:18,167 INFO L480 AbstractCegarLoop]: Abstraction has 3042 states and 7840 transitions. [2021-04-15 01:13:18,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:18,167 INFO L276 IsEmpty]: Start isEmpty. Operand 3042 states and 7840 transitions. [2021-04-15 01:13:18,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:13:18,169 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:13:18,169 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:13:18,170 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-04-15 01:13:18,170 INFO L428 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]=== [2021-04-15 01:13:18,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:13:18,170 INFO L82 PathProgramCache]: Analyzing trace with hash -209695320, now seen corresponding path program 68 times [2021-04-15 01:13:18,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:13:18,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017240443] [2021-04-15 01:13:18,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:13:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:13:19,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:13:19,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017240443] [2021-04-15 01:13:19,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:13:19,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:13:19,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235140422] [2021-04-15 01:13:19,074 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:13:19,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:13:19,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:13:19,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:13:19,074 INFO L87 Difference]: Start difference. First operand 3042 states and 7840 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:20,066 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-04-15 01:13:20,296 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-04-15 01:13:20,480 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-04-15 01:13:22,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:13:22,204 INFO L93 Difference]: Finished difference Result 4130 states and 10552 transitions. [2021-04-15 01:13:22,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-04-15 01:13:22,205 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:13:22,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:13:22,208 INFO L225 Difference]: With dead ends: 4130 [2021-04-15 01:13:22,209 INFO L226 Difference]: Without dead ends: 3879 [2021-04-15 01:13:22,209 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 2858.5ms TimeCoverageRelationStatistics Valid=521, Invalid=2559, Unknown=0, NotChecked=0, Total=3080 [2021-04-15 01:13:22,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3879 states. [2021-04-15 01:13:22,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3879 to 3207. [2021-04-15 01:13:22,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3207 states, 3206 states have (on average 2.5723643169058015) internal successors, (8247), 3206 states have internal predecessors, (8247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:13:22,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 8247 transitions. [2021-04-15 01:13:22,245 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 8247 transitions. Word has length 113 [2021-04-15 01:13:22,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:13:22,245 INFO L480 AbstractCegarLoop]: Abstraction has 3207 states and 8247 transitions. [2021-04-15 01:13:22,245 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:22,245 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 8247 transitions. [2021-04-15 01:13:22,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:13:22,247 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:13:22,247 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:13:22,247 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-04-15 01:13:22,248 INFO L428 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]=== [2021-04-15 01:13:22,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:13:22,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1819979778, now seen corresponding path program 69 times [2021-04-15 01:13:22,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:13:22,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982576564] [2021-04-15 01:13:22,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:13:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:13:23,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:13:23,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982576564] [2021-04-15 01:13:23,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:13:23,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:13:23,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096911041] [2021-04-15 01:13:23,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:13:23,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:13:23,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:13:23,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:13:23,148 INFO L87 Difference]: Start difference. First operand 3207 states and 8247 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:24,388 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-04-15 01:13:24,564 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-04-15 01:13:26,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:13:26,380 INFO L93 Difference]: Finished difference Result 3976 states and 10135 transitions. [2021-04-15 01:13:26,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-04-15 01:13:26,381 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:13:26,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:13:26,385 INFO L225 Difference]: With dead ends: 3976 [2021-04-15 01:13:26,385 INFO L226 Difference]: Without dead ends: 3846 [2021-04-15 01:13:26,385 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 2928.4ms TimeCoverageRelationStatistics Valid=523, Invalid=2669, Unknown=0, NotChecked=0, Total=3192 [2021-04-15 01:13:26,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3846 states. [2021-04-15 01:13:26,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3846 to 3174. [2021-04-15 01:13:26,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3174 states, 3173 states have (on average 2.5713835486920895) internal successors, (8159), 3173 states have internal predecessors, (8159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:13:26,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3174 states to 3174 states and 8159 transitions. [2021-04-15 01:13:26,435 INFO L78 Accepts]: Start accepts. Automaton has 3174 states and 8159 transitions. Word has length 113 [2021-04-15 01:13:26,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:13:26,435 INFO L480 AbstractCegarLoop]: Abstraction has 3174 states and 8159 transitions. [2021-04-15 01:13:26,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:26,435 INFO L276 IsEmpty]: Start isEmpty. Operand 3174 states and 8159 transitions. [2021-04-15 01:13:26,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:13:26,437 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:13:26,438 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:13:26,438 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-04-15 01:13:26,438 INFO L428 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]=== [2021-04-15 01:13:26,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:13:26,438 INFO L82 PathProgramCache]: Analyzing trace with hash -377316690, now seen corresponding path program 70 times [2021-04-15 01:13:26,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:13:26,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607797414] [2021-04-15 01:13:26,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:13:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:13:27,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:13:27,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607797414] [2021-04-15 01:13:27,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:13:27,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:13:27,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739985930] [2021-04-15 01:13:27,341 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:13:27,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:13:27,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:13:27,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:13:27,341 INFO L87 Difference]: Start difference. First operand 3174 states and 8159 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:28,645 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-04-15 01:13:28,828 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-04-15 01:13:29,525 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-04-15 01:13:30,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:13:30,670 INFO L93 Difference]: Finished difference Result 3909 states and 9992 transitions. [2021-04-15 01:13:30,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-04-15 01:13:30,671 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:13:30,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:13:30,675 INFO L225 Difference]: With dead ends: 3909 [2021-04-15 01:13:30,675 INFO L226 Difference]: Without dead ends: 3610 [2021-04-15 01:13:30,675 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 2895.7ms TimeCoverageRelationStatistics Valid=492, Invalid=2478, Unknown=0, NotChecked=0, Total=2970 [2021-04-15 01:13:30,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3610 states. [2021-04-15 01:13:30,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3610 to 3020. [2021-04-15 01:13:30,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3020 states, 3019 states have (on average 2.5786684332560452) internal successors, (7785), 3019 states have internal predecessors, (7785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:13:30,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3020 states to 3020 states and 7785 transitions. [2021-04-15 01:13:30,706 INFO L78 Accepts]: Start accepts. Automaton has 3020 states and 7785 transitions. Word has length 113 [2021-04-15 01:13:30,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:13:30,706 INFO L480 AbstractCegarLoop]: Abstraction has 3020 states and 7785 transitions. [2021-04-15 01:13:30,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:30,706 INFO L276 IsEmpty]: Start isEmpty. Operand 3020 states and 7785 transitions. [2021-04-15 01:13:30,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:13:30,708 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:13:30,708 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:13:30,709 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-04-15 01:13:30,709 INFO L428 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]=== [2021-04-15 01:13:30,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:13:30,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1184590354, now seen corresponding path program 71 times [2021-04-15 01:13:30,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:13:30,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135031872] [2021-04-15 01:13:30,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:13:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:13:31,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:13:31,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135031872] [2021-04-15 01:13:31,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:13:31,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:13:31,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811254300] [2021-04-15 01:13:31,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:13:31,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:13:31,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:13:31,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:13:31,652 INFO L87 Difference]: Start difference. First operand 3020 states and 7785 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:32,927 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-04-15 01:13:33,107 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-04-15 01:13:33,581 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2021-04-15 01:13:33,753 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-04-15 01:13:34,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:13:34,870 INFO L93 Difference]: Finished difference Result 3701 states and 9508 transitions. [2021-04-15 01:13:34,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-04-15 01:13:34,870 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:13:34,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:13:34,873 INFO L225 Difference]: With dead ends: 3701 [2021-04-15 01:13:34,873 INFO L226 Difference]: Without dead ends: 3499 [2021-04-15 01:13:34,873 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 2890.8ms TimeCoverageRelationStatistics Valid=487, Invalid=2375, Unknown=0, NotChecked=0, Total=2862 [2021-04-15 01:13:34,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3499 states. [2021-04-15 01:13:34,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3499 to 2965. [2021-04-15 01:13:34,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2965 states, 2964 states have (on average 2.5907557354925776) internal successors, (7679), 2964 states have internal predecessors, (7679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:13:34,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 7679 transitions. [2021-04-15 01:13:34,904 INFO L78 Accepts]: Start accepts. Automaton has 2965 states and 7679 transitions. Word has length 113 [2021-04-15 01:13:34,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:13:34,904 INFO L480 AbstractCegarLoop]: Abstraction has 2965 states and 7679 transitions. [2021-04-15 01:13:34,904 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:34,904 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states and 7679 transitions. [2021-04-15 01:13:34,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:13:34,906 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:13:34,906 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:13:34,906 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-04-15 01:13:34,906 INFO L428 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]=== [2021-04-15 01:13:34,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:13:34,906 INFO L82 PathProgramCache]: Analyzing trace with hash 995757262, now seen corresponding path program 72 times [2021-04-15 01:13:34,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:13:34,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693849611] [2021-04-15 01:13:34,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:13:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:13:35,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:13:35,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693849611] [2021-04-15 01:13:35,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:13:35,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:13:35,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765805598] [2021-04-15 01:13:35,776 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:13:35,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:13:35,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:13:35,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:13:35,776 INFO L87 Difference]: Start difference. First operand 2965 states and 7679 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:36,761 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2021-04-15 01:13:37,155 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-04-15 01:13:37,320 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2021-04-15 01:13:37,552 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2021-04-15 01:13:39,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:13:39,246 INFO L93 Difference]: Finished difference Result 3771 states and 9503 transitions. [2021-04-15 01:13:39,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-04-15 01:13:39,247 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:13:39,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:13:39,249 INFO L225 Difference]: With dead ends: 3771 [2021-04-15 01:13:39,249 INFO L226 Difference]: Without dead ends: 3530 [2021-04-15 01:13:39,250 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 3072.7ms TimeCoverageRelationStatistics Valid=604, Invalid=2818, Unknown=0, NotChecked=0, Total=3422 [2021-04-15 01:13:39,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3530 states. [2021-04-15 01:13:39,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3530 to 3016. [2021-04-15 01:13:39,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3016 states, 3015 states have (on average 2.5834162520729684) internal successors, (7789), 3015 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) [2021-04-15 01:13:39,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3016 states to 3016 states and 7789 transitions. [2021-04-15 01:13:39,279 INFO L78 Accepts]: Start accepts. Automaton has 3016 states and 7789 transitions. Word has length 113 [2021-04-15 01:13:39,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:13:39,279 INFO L480 AbstractCegarLoop]: Abstraction has 3016 states and 7789 transitions. [2021-04-15 01:13:39,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:39,280 INFO L276 IsEmpty]: Start isEmpty. Operand 3016 states and 7789 transitions. [2021-04-15 01:13:39,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:13:39,282 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:13:39,282 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:13:39,282 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-04-15 01:13:39,282 INFO L428 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]=== [2021-04-15 01:13:39,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:13:39,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1891332594, now seen corresponding path program 73 times [2021-04-15 01:13:39,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:13:39,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159743026] [2021-04-15 01:13:39,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:13:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:13:39,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:13:39,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159743026] [2021-04-15 01:13:39,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:13:39,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-04-15 01:13:39,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735340551] [2021-04-15 01:13:39,567 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-15 01:13:39,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:13:39,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-15 01:13:39,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-04-15 01:13:39,567 INFO L87 Difference]: Start difference. First operand 3016 states and 7789 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) [2021-04-15 01:13:40,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:13:40,167 INFO L93 Difference]: Finished difference Result 5470 states and 13603 transitions. [2021-04-15 01:13:40,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 01:13:40,167 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 [2021-04-15 01:13:40,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:13:40,173 INFO L225 Difference]: With dead ends: 5470 [2021-04-15 01:13:40,173 INFO L226 Difference]: Without dead ends: 5395 [2021-04-15 01:13:40,174 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 504.3ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-04-15 01:13:40,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5395 states. [2021-04-15 01:13:40,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5395 to 2769. [2021-04-15 01:13:40,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 2768 states have (on average 2.5653901734104045) internal successors, (7101), 2768 states have internal predecessors, (7101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:13:40,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 7101 transitions. [2021-04-15 01:13:40,220 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 7101 transitions. Word has length 113 [2021-04-15 01:13:40,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:13:40,220 INFO L480 AbstractCegarLoop]: Abstraction has 2769 states and 7101 transitions. [2021-04-15 01:13:40,220 INFO L481 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) [2021-04-15 01:13:40,220 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 7101 transitions. [2021-04-15 01:13:40,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:13:40,223 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:13:40,223 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:13:40,223 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-04-15 01:13:40,223 INFO L428 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]=== [2021-04-15 01:13:40,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:13:40,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1236197048, now seen corresponding path program 74 times [2021-04-15 01:13:40,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:13:40,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450239808] [2021-04-15 01:13:40,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:13:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:13:41,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:13:41,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450239808] [2021-04-15 01:13:41,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:13:41,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:13:41,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786215494] [2021-04-15 01:13:41,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:13:41,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:13:41,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:13:41,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:13:41,096 INFO L87 Difference]: Start difference. First operand 2769 states and 7101 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:42,134 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2021-04-15 01:13:42,311 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2021-04-15 01:13:42,620 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2021-04-15 01:13:44,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:13:44,102 INFO L93 Difference]: Finished difference Result 3420 states and 8707 transitions. [2021-04-15 01:13:44,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 01:13:44,103 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:13:44,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:13:44,107 INFO L225 Difference]: With dead ends: 3420 [2021-04-15 01:13:44,107 INFO L226 Difference]: Without dead ends: 3275 [2021-04-15 01:13:44,107 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 2576.8ms TimeCoverageRelationStatistics Valid=455, Invalid=2301, Unknown=0, NotChecked=0, Total=2756 [2021-04-15 01:13:44,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3275 states. [2021-04-15 01:13:44,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3275 to 2901. [2021-04-15 01:13:44,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2901 states, 2900 states have (on average 2.5651724137931033) internal successors, (7439), 2900 states have internal predecessors, (7439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:13:44,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2901 states to 2901 states and 7439 transitions. [2021-04-15 01:13:44,142 INFO L78 Accepts]: Start accepts. Automaton has 2901 states and 7439 transitions. Word has length 113 [2021-04-15 01:13:44,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:13:44,142 INFO L480 AbstractCegarLoop]: Abstraction has 2901 states and 7439 transitions. [2021-04-15 01:13:44,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:44,142 INFO L276 IsEmpty]: Start isEmpty. Operand 2901 states and 7439 transitions. [2021-04-15 01:13:44,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:13:44,145 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:13:44,145 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:13:44,145 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-04-15 01:13:44,145 INFO L428 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]=== [2021-04-15 01:13:44,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:13:44,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1094673778, now seen corresponding path program 75 times [2021-04-15 01:13:44,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:13:44,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797218386] [2021-04-15 01:13:44,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:13:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:13:45,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:13:45,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797218386] [2021-04-15 01:13:45,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:13:45,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:13:45,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614473293] [2021-04-15 01:13:45,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:13:45,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:13:45,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:13:45,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:13:45,043 INFO L87 Difference]: Start difference. First operand 2901 states and 7439 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:46,105 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2021-04-15 01:13:46,284 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2021-04-15 01:13:46,586 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2021-04-15 01:13:48,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:13:48,225 INFO L93 Difference]: Finished difference Result 3597 states and 9111 transitions. [2021-04-15 01:13:48,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-04-15 01:13:48,226 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:13:48,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:13:48,229 INFO L225 Difference]: With dead ends: 3597 [2021-04-15 01:13:48,229 INFO L226 Difference]: Without dead ends: 3346 [2021-04-15 01:13:48,230 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 2732.6ms TimeCoverageRelationStatistics Valid=487, Invalid=2375, Unknown=0, NotChecked=0, Total=2862 [2021-04-15 01:13:48,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3346 states. [2021-04-15 01:13:48,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3346 to 2934. [2021-04-15 01:13:48,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2934 states, 2933 states have (on average 2.5550630753494716) internal successors, (7494), 2933 states have internal predecessors, (7494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:13:48,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2934 states to 2934 states and 7494 transitions. [2021-04-15 01:13:48,265 INFO L78 Accepts]: Start accepts. Automaton has 2934 states and 7494 transitions. Word has length 113 [2021-04-15 01:13:48,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:13:48,265 INFO L480 AbstractCegarLoop]: Abstraction has 2934 states and 7494 transitions. [2021-04-15 01:13:48,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:48,265 INFO L276 IsEmpty]: Start isEmpty. Operand 2934 states and 7494 transitions. [2021-04-15 01:13:48,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:13:48,268 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:13:48,268 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:13:48,268 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-04-15 01:13:48,268 INFO L428 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]=== [2021-04-15 01:13:48,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:13:48,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1267275748, now seen corresponding path program 76 times [2021-04-15 01:13:48,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:13:48,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969204753] [2021-04-15 01:13:48,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:13:48,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:13:49,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:13:49,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969204753] [2021-04-15 01:13:49,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:13:49,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:13:49,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801050451] [2021-04-15 01:13:49,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:13:49,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:13:49,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:13:49,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:13:49,202 INFO L87 Difference]: Start difference. First operand 2934 states and 7494 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:50,242 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2021-04-15 01:13:50,411 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2021-04-15 01:13:50,712 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2021-04-15 01:13:52,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:13:52,350 INFO L93 Difference]: Finished difference Result 3443 states and 8694 transitions. [2021-04-15 01:13:52,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-04-15 01:13:52,350 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:13:52,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:13:52,353 INFO L225 Difference]: With dead ends: 3443 [2021-04-15 01:13:52,353 INFO L226 Difference]: Without dead ends: 3159 [2021-04-15 01:13:52,354 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 2859.1ms TimeCoverageRelationStatistics Valid=489, Invalid=2481, Unknown=0, NotChecked=0, Total=2970 [2021-04-15 01:13:52,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2021-04-15 01:13:52,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 2747. [2021-04-15 01:13:52,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2747 states, 2746 states have (on average 2.5659140568099055) internal successors, (7046), 2746 states have internal predecessors, (7046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:13:52,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2747 states to 2747 states and 7046 transitions. [2021-04-15 01:13:52,383 INFO L78 Accepts]: Start accepts. Automaton has 2747 states and 7046 transitions. Word has length 113 [2021-04-15 01:13:52,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:13:52,383 INFO L480 AbstractCegarLoop]: Abstraction has 2747 states and 7046 transitions. [2021-04-15 01:13:52,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:52,383 INFO L276 IsEmpty]: Start isEmpty. Operand 2747 states and 7046 transitions. [2021-04-15 01:13:52,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:13:52,385 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:13:52,385 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:13:52,385 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-04-15 01:13:52,386 INFO L428 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]=== [2021-04-15 01:13:52,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:13:52,386 INFO L82 PathProgramCache]: Analyzing trace with hash 317426084, now seen corresponding path program 77 times [2021-04-15 01:13:52,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:13:52,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304564380] [2021-04-15 01:13:52,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:13:52,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:13:53,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:13:53,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304564380] [2021-04-15 01:13:53,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:13:53,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:13:53,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095629789] [2021-04-15 01:13:53,262 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:13:53,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:13:53,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:13:53,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:13:53,262 INFO L87 Difference]: Start difference. First operand 2747 states and 7046 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:54,312 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2021-04-15 01:13:54,482 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2021-04-15 01:13:54,787 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2021-04-15 01:13:55,151 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2021-04-15 01:13:56,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:13:56,314 INFO L93 Difference]: Finished difference Result 3171 states and 8078 transitions. [2021-04-15 01:13:56,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 01:13:56,314 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:13:56,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:13:56,317 INFO L225 Difference]: With dead ends: 3171 [2021-04-15 01:13:56,317 INFO L226 Difference]: Without dead ends: 3013 [2021-04-15 01:13:56,317 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 2678.2ms TimeCoverageRelationStatistics Valid=467, Invalid=2289, Unknown=0, NotChecked=0, Total=2756 [2021-04-15 01:13:56,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3013 states. [2021-04-15 01:13:56,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3013 to 2736. [2021-04-15 01:13:56,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2736 states, 2735 states have (on average 2.5681901279707495) internal successors, (7024), 2735 states have internal predecessors, (7024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:13:56,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2736 states to 2736 states and 7024 transitions. [2021-04-15 01:13:56,345 INFO L78 Accepts]: Start accepts. Automaton has 2736 states and 7024 transitions. Word has length 113 [2021-04-15 01:13:56,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:13:56,346 INFO L480 AbstractCegarLoop]: Abstraction has 2736 states and 7024 transitions. [2021-04-15 01:13:56,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:56,346 INFO L276 IsEmpty]: Start isEmpty. Operand 2736 states and 7024 transitions. [2021-04-15 01:13:56,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:13:56,348 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:13:56,348 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:13:56,348 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-04-15 01:13:56,348 INFO L428 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]=== [2021-04-15 01:13:56,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:13:56,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1820426898, now seen corresponding path program 78 times [2021-04-15 01:13:56,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:13:56,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402209416] [2021-04-15 01:13:56,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:13:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:13:57,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:13:57,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402209416] [2021-04-15 01:13:57,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:13:57,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:13:57,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516105657] [2021-04-15 01:13:57,217 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:13:57,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:13:57,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:13:57,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:13:57,218 INFO L87 Difference]: Start difference. First operand 2736 states and 7024 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:13:58,236 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2021-04-15 01:13:58,402 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2021-04-15 01:13:58,808 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2021-04-15 01:13:59,041 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 68 [2021-04-15 01:14:00,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:14:00,066 INFO L93 Difference]: Finished difference Result 3197 states and 8122 transitions. [2021-04-15 01:14:00,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 01:14:00,067 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:14:00,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:14:00,069 INFO L225 Difference]: With dead ends: 3197 [2021-04-15 01:14:00,069 INFO L226 Difference]: Without dead ends: 2953 [2021-04-15 01:14:00,069 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 2598.8ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-04-15 01:14:00,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2953 states. [2021-04-15 01:14:00,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2953 to 2679. [2021-04-15 01:14:00,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2679 states, 2678 states have (on average 2.5810306198655715) internal successors, (6912), 2678 states have internal predecessors, (6912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:14:00,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2679 states to 2679 states and 6912 transitions. [2021-04-15 01:14:00,096 INFO L78 Accepts]: Start accepts. Automaton has 2679 states and 6912 transitions. Word has length 113 [2021-04-15 01:14:00,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:14:00,096 INFO L480 AbstractCegarLoop]: Abstraction has 2679 states and 6912 transitions. [2021-04-15 01:14:00,096 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:14:00,096 INFO L276 IsEmpty]: Start isEmpty. Operand 2679 states and 6912 transitions. [2021-04-15 01:14:00,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:14:00,098 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:14:00,098 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:14:00,098 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-04-15 01:14:00,098 INFO L428 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]=== [2021-04-15 01:14:00,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:14:00,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1681417292, now seen corresponding path program 79 times [2021-04-15 01:14:00,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:14:00,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017483892] [2021-04-15 01:14:00,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:14:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:14:00,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:14:00,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017483892] [2021-04-15 01:14:00,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:14:00,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:14:00,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913373376] [2021-04-15 01:14:00,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:14:00,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:14:00,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:14:00,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:14:00,857 INFO L87 Difference]: Start difference. First operand 2679 states and 6912 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:14:02,229 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-04-15 01:14:02,417 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-04-15 01:14:02,681 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2021-04-15 01:14:03,128 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-04-15 01:14:03,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:14:03,964 INFO L93 Difference]: Finished difference Result 3111 states and 7905 transitions. [2021-04-15 01:14:03,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 01:14:03,964 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:14:03,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:14:03,968 INFO L225 Difference]: With dead ends: 3111 [2021-04-15 01:14:03,968 INFO L226 Difference]: Without dead ends: 2924 [2021-04-15 01:14:03,968 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 2693.9ms TimeCoverageRelationStatistics Valid=424, Invalid=2026, Unknown=0, NotChecked=0, Total=2450 [2021-04-15 01:14:03,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2021-04-15 01:14:03,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 2692. [2021-04-15 01:14:04,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2692 states, 2691 states have (on average 2.5771088814567076) internal successors, (6935), 2691 states have internal predecessors, (6935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:14:04,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 6935 transitions. [2021-04-15 01:14:04,006 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 6935 transitions. Word has length 113 [2021-04-15 01:14:04,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:14:04,006 INFO L480 AbstractCegarLoop]: Abstraction has 2692 states and 6935 transitions. [2021-04-15 01:14:04,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:14:04,006 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 6935 transitions. [2021-04-15 01:14:04,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:14:04,009 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:14:04,009 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:14:04,009 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-04-15 01:14:04,009 INFO L428 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]=== [2021-04-15 01:14:04,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:14:04,016 INFO L82 PathProgramCache]: Analyzing trace with hash -649615160, now seen corresponding path program 80 times [2021-04-15 01:14:04,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:14:04,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716428681] [2021-04-15 01:14:04,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:14:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:14:04,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:14:04,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716428681] [2021-04-15 01:14:04,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:14:04,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:14:04,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3405457] [2021-04-15 01:14:04,780 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:14:04,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:14:04,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:14:04,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:14:04,781 INFO L87 Difference]: Start difference. First operand 2692 states and 6935 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:14:06,089 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-04-15 01:14:06,304 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2021-04-15 01:14:06,670 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2021-04-15 01:14:07,163 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2021-04-15 01:14:08,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:14:08,139 INFO L93 Difference]: Finished difference Result 3410 states and 8493 transitions. [2021-04-15 01:14:08,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-04-15 01:14:08,140 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:14:08,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:14:08,142 INFO L225 Difference]: With dead ends: 3410 [2021-04-15 01:14:08,142 INFO L226 Difference]: Without dead ends: 3213 [2021-04-15 01:14:08,143 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 2909.4ms TimeCoverageRelationStatistics Valid=518, Invalid=2452, Unknown=0, NotChecked=0, Total=2970 [2021-04-15 01:14:08,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3213 states. [2021-04-15 01:14:08,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3213 to 2695. [2021-04-15 01:14:08,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2695 states, 2694 states have (on average 2.5757238307349666) internal successors, (6939), 2694 states have internal predecessors, (6939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:14:08,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2695 states to 2695 states and 6939 transitions. [2021-04-15 01:14:08,169 INFO L78 Accepts]: Start accepts. Automaton has 2695 states and 6939 transitions. Word has length 113 [2021-04-15 01:14:08,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:14:08,169 INFO L480 AbstractCegarLoop]: Abstraction has 2695 states and 6939 transitions. [2021-04-15 01:14:08,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:14:08,170 INFO L276 IsEmpty]: Start isEmpty. Operand 2695 states and 6939 transitions. [2021-04-15 01:14:08,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:14:08,172 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:14:08,172 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:14:08,172 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-04-15 01:14:08,172 INFO L428 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]=== [2021-04-15 01:14:08,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:14:08,172 INFO L82 PathProgramCache]: Analyzing trace with hash 2018819758, now seen corresponding path program 81 times [2021-04-15 01:14:08,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:14:08,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991427140] [2021-04-15 01:14:08,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:14:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:14:08,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:14:08,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991427140] [2021-04-15 01:14:08,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:14:08,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:14:08,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021805801] [2021-04-15 01:14:08,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:14:08,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:14:08,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:14:08,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:14:08,922 INFO L87 Difference]: Start difference. First operand 2695 states and 6939 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:14:10,296 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2021-04-15 01:14:10,523 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-04-15 01:14:10,705 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-04-15 01:14:10,843 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-04-15 01:14:11,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:14:11,976 INFO L93 Difference]: Finished difference Result 3156 states and 8006 transitions. [2021-04-15 01:14:11,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 01:14:11,977 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:14:11,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:14:11,979 INFO L225 Difference]: With dead ends: 3156 [2021-04-15 01:14:11,979 INFO L226 Difference]: Without dead ends: 2966 [2021-04-15 01:14:11,979 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 2564.1ms TimeCoverageRelationStatistics Valid=443, Invalid=2107, Unknown=0, NotChecked=0, Total=2550 [2021-04-15 01:14:11,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2021-04-15 01:14:12,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 2685. [2021-04-15 01:14:12,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2685 states, 2684 states have (on average 2.579359165424739) internal successors, (6923), 2684 states have internal predecessors, (6923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:14:12,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 6923 transitions. [2021-04-15 01:14:12,005 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 6923 transitions. Word has length 113 [2021-04-15 01:14:12,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:14:12,005 INFO L480 AbstractCegarLoop]: Abstraction has 2685 states and 6923 transitions. [2021-04-15 01:14:12,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:14:12,005 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 6923 transitions. [2021-04-15 01:14:12,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:14:12,007 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:14:12,007 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:14:12,007 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-04-15 01:14:12,007 INFO L428 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]=== [2021-04-15 01:14:12,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:14:12,007 INFO L82 PathProgramCache]: Analyzing trace with hash 328963054, now seen corresponding path program 82 times [2021-04-15 01:14:12,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:14:12,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129326622] [2021-04-15 01:14:12,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:14:12,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:14:12,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:14:12,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129326622] [2021-04-15 01:14:12,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:14:12,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:14:12,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749717431] [2021-04-15 01:14:12,896 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:14:12,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:14:12,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:14:12,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:14:12,897 INFO L87 Difference]: Start difference. First operand 2685 states and 6923 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:14:14,331 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2021-04-15 01:14:14,513 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2021-04-15 01:14:14,780 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 68 [2021-04-15 01:14:15,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:14:15,894 INFO L93 Difference]: Finished difference Result 3088 states and 7866 transitions. [2021-04-15 01:14:15,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 01:14:15,895 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:14:15,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:14:15,897 INFO L225 Difference]: With dead ends: 3088 [2021-04-15 01:14:15,897 INFO L226 Difference]: Without dead ends: 2897 [2021-04-15 01:14:15,898 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 2639.2ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-04-15 01:14:15,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2021-04-15 01:14:15,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 2681. [2021-04-15 01:14:15,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2681 states, 2680 states have (on average 2.580223880597015) internal successors, (6915), 2680 states have internal predecessors, (6915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:14:15,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2681 states to 2681 states and 6915 transitions. [2021-04-15 01:14:15,923 INFO L78 Accepts]: Start accepts. Automaton has 2681 states and 6915 transitions. Word has length 113 [2021-04-15 01:14:15,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:14:15,923 INFO L480 AbstractCegarLoop]: Abstraction has 2681 states and 6915 transitions. [2021-04-15 01:14:15,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:14:15,924 INFO L276 IsEmpty]: Start isEmpty. Operand 2681 states and 6915 transitions. [2021-04-15 01:14:15,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:14:15,926 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:14:15,926 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:14:15,926 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-04-15 01:14:15,926 INFO L428 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]=== [2021-04-15 01:14:15,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:14:15,926 INFO L82 PathProgramCache]: Analyzing trace with hash 194079192, now seen corresponding path program 83 times [2021-04-15 01:14:15,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:14:15,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748793243] [2021-04-15 01:14:15,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:14:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:14:16,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:14:16,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748793243] [2021-04-15 01:14:16,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:14:16,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:14:16,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377707966] [2021-04-15 01:14:16,850 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:14:16,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:14:16,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:14:16,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:14:16,850 INFO L87 Difference]: Start difference. First operand 2681 states and 6915 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:14:18,088 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-04-15 01:14:18,231 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2021-04-15 01:14:18,450 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 64 [2021-04-15 01:14:20,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:14:20,596 INFO L93 Difference]: Finished difference Result 3459 states and 8634 transitions. [2021-04-15 01:14:20,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-04-15 01:14:20,597 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:14:20,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:14:20,599 INFO L225 Difference]: With dead ends: 3459 [2021-04-15 01:14:20,599 INFO L226 Difference]: Without dead ends: 3198 [2021-04-15 01:14:20,600 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 643 ImplicationChecksByTransitivity, 3319.5ms TimeCoverageRelationStatistics Valid=617, Invalid=2923, Unknown=0, NotChecked=0, Total=3540 [2021-04-15 01:14:20,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3198 states. [2021-04-15 01:14:20,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3198 to 2693. [2021-04-15 01:14:20,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2693 states, 2692 states have (on average 2.5783803863298664) internal successors, (6941), 2692 states have internal predecessors, (6941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:14:20,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2693 states to 2693 states and 6941 transitions. [2021-04-15 01:14:20,630 INFO L78 Accepts]: Start accepts. Automaton has 2693 states and 6941 transitions. Word has length 113 [2021-04-15 01:14:20,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:14:20,630 INFO L480 AbstractCegarLoop]: Abstraction has 2693 states and 6941 transitions. [2021-04-15 01:14:20,630 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:14:20,630 INFO L276 IsEmpty]: Start isEmpty. Operand 2693 states and 6941 transitions. [2021-04-15 01:14:20,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:14:20,632 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:14:20,632 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:14:20,632 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-04-15 01:14:20,633 INFO L428 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]=== [2021-04-15 01:14:20,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:14:20,633 INFO L82 PathProgramCache]: Analyzing trace with hash 252160804, now seen corresponding path program 84 times [2021-04-15 01:14:20,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:14:20,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003636438] [2021-04-15 01:14:20,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:14:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:14:21,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:14:21,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003636438] [2021-04-15 01:14:21,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:14:21,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:14:21,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585644879] [2021-04-15 01:14:21,557 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:14:21,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:14:21,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:14:21,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:14:21,558 INFO L87 Difference]: Start difference. First operand 2693 states and 6941 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:14:22,931 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2021-04-15 01:14:23,168 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 64 [2021-04-15 01:14:23,365 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 68 [2021-04-15 01:14:25,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:14:25,405 INFO L93 Difference]: Finished difference Result 3429 states and 8570 transitions. [2021-04-15 01:14:25,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-04-15 01:14:25,405 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:14:25,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:14:25,408 INFO L225 Difference]: With dead ends: 3429 [2021-04-15 01:14:25,408 INFO L226 Difference]: Without dead ends: 3188 [2021-04-15 01:14:25,408 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 3418.3ms TimeCoverageRelationStatistics Valid=631, Invalid=2909, Unknown=0, NotChecked=0, Total=3540 [2021-04-15 01:14:25,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3188 states. [2021-04-15 01:14:25,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3188 to 2705. [2021-04-15 01:14:25,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2705 states, 2704 states have (on average 2.572855029585799) internal successors, (6957), 2704 states have internal predecessors, (6957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:14:25,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2705 states to 2705 states and 6957 transitions. [2021-04-15 01:14:25,437 INFO L78 Accepts]: Start accepts. Automaton has 2705 states and 6957 transitions. Word has length 113 [2021-04-15 01:14:25,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:14:25,437 INFO L480 AbstractCegarLoop]: Abstraction has 2705 states and 6957 transitions. [2021-04-15 01:14:25,437 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:14:25,437 INFO L276 IsEmpty]: Start isEmpty. Operand 2705 states and 6957 transitions. [2021-04-15 01:14:25,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:14:25,439 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:14:25,439 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:14:25,439 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-04-15 01:14:25,440 INFO L428 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]=== [2021-04-15 01:14:25,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:14:25,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1660038244, now seen corresponding path program 85 times [2021-04-15 01:14:25,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:14:25,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511951324] [2021-04-15 01:14:25,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:14:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:14:25,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:14:25,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511951324] [2021-04-15 01:14:25,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:14:25,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-04-15 01:14:25,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953798276] [2021-04-15 01:14:25,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-15 01:14:25,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:14:25,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-15 01:14:25,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-04-15 01:14:25,757 INFO L87 Difference]: Start difference. First operand 2705 states and 6957 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) [2021-04-15 01:14:26,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:14:26,464 INFO L93 Difference]: Finished difference Result 4725 states and 12132 transitions. [2021-04-15 01:14:26,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 01:14:26,465 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 [2021-04-15 01:14:26,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:14:26,470 INFO L225 Difference]: With dead ends: 4725 [2021-04-15 01:14:26,470 INFO L226 Difference]: Without dead ends: 4719 [2021-04-15 01:14:26,470 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 600.0ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-04-15 01:14:26,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4719 states. [2021-04-15 01:14:26,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4719 to 2851. [2021-04-15 01:14:26,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2851 states, 2850 states have (on average 2.575438596491228) internal successors, (7340), 2850 states have internal predecessors, (7340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:14:26,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2851 states to 2851 states and 7340 transitions. [2021-04-15 01:14:26,509 INFO L78 Accepts]: Start accepts. Automaton has 2851 states and 7340 transitions. Word has length 113 [2021-04-15 01:14:26,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:14:26,509 INFO L480 AbstractCegarLoop]: Abstraction has 2851 states and 7340 transitions. [2021-04-15 01:14:26,509 INFO L481 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) [2021-04-15 01:14:26,509 INFO L276 IsEmpty]: Start isEmpty. Operand 2851 states and 7340 transitions. [2021-04-15 01:14:26,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:14:26,511 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:14:26,511 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:14:26,512 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-04-15 01:14:26,512 INFO L428 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]=== [2021-04-15 01:14:26,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:14:26,512 INFO L82 PathProgramCache]: Analyzing trace with hash 235696562, now seen corresponding path program 86 times [2021-04-15 01:14:26,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:14:26,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49321939] [2021-04-15 01:14:26,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:14:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:14:27,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:14:27,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49321939] [2021-04-15 01:14:27,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:14:27,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:14:27,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061296944] [2021-04-15 01:14:27,453 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:14:27,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:14:27,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:14:27,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:14:27,453 INFO L87 Difference]: Start difference. First operand 2851 states and 7340 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:14:28,918 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2021-04-15 01:14:29,117 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 66 [2021-04-15 01:14:29,401 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 68 [2021-04-15 01:14:31,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:14:31,227 INFO L93 Difference]: Finished difference Result 3522 states and 8785 transitions. [2021-04-15 01:14:31,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-04-15 01:14:31,227 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:14:31,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:14:31,231 INFO L225 Difference]: With dead ends: 3522 [2021-04-15 01:14:31,231 INFO L226 Difference]: Without dead ends: 3258 [2021-04-15 01:14:31,231 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 3230.8ms TimeCoverageRelationStatistics Valid=604, Invalid=2818, Unknown=0, NotChecked=0, Total=3422 [2021-04-15 01:14:31,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3258 states. [2021-04-15 01:14:31,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3258 to 2895. [2021-04-15 01:14:31,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2895 states, 2894 states have (on average 2.568762957843815) internal successors, (7434), 2894 states have internal predecessors, (7434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:14:31,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2895 states to 2895 states and 7434 transitions. [2021-04-15 01:14:31,273 INFO L78 Accepts]: Start accepts. Automaton has 2895 states and 7434 transitions. Word has length 113 [2021-04-15 01:14:31,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:14:31,274 INFO L480 AbstractCegarLoop]: Abstraction has 2895 states and 7434 transitions. [2021-04-15 01:14:31,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:14:31,274 INFO L276 IsEmpty]: Start isEmpty. Operand 2895 states and 7434 transitions. [2021-04-15 01:14:31,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:14:31,276 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:14:31,276 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:14:31,276 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-04-15 01:14:31,276 INFO L428 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]=== [2021-04-15 01:14:31,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:14:31,276 INFO L82 PathProgramCache]: Analyzing trace with hash 634870568, now seen corresponding path program 87 times [2021-04-15 01:14:31,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:14:31,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030036637] [2021-04-15 01:14:31,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:14:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:14:31,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:14:31,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030036637] [2021-04-15 01:14:31,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:14:31,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-04-15 01:14:31,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829377718] [2021-04-15 01:14:31,649 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-15 01:14:31,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:14:31,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-15 01:14:31,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-04-15 01:14:31,649 INFO L87 Difference]: Start difference. First operand 2895 states and 7434 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) [2021-04-15 01:14:32,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:14:32,373 INFO L93 Difference]: Finished difference Result 4220 states and 10358 transitions. [2021-04-15 01:14:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-04-15 01:14:32,373 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 [2021-04-15 01:14:32,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:14:32,377 INFO L225 Difference]: With dead ends: 4220 [2021-04-15 01:14:32,377 INFO L226 Difference]: Without dead ends: 4210 [2021-04-15 01:14:32,378 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 651.4ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-04-15 01:14:32,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4210 states. [2021-04-15 01:14:32,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4210 to 2923. [2021-04-15 01:14:32,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2923 states, 2922 states have (on average 2.563997262149213) internal successors, (7492), 2922 states have internal predecessors, (7492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:14:32,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2923 states to 2923 states and 7492 transitions. [2021-04-15 01:14:32,415 INFO L78 Accepts]: Start accepts. Automaton has 2923 states and 7492 transitions. Word has length 113 [2021-04-15 01:14:32,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:14:32,415 INFO L480 AbstractCegarLoop]: Abstraction has 2923 states and 7492 transitions. [2021-04-15 01:14:32,415 INFO L481 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) [2021-04-15 01:14:32,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2923 states and 7492 transitions. [2021-04-15 01:14:32,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:14:32,417 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:14:32,417 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:14:32,417 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-04-15 01:14:32,417 INFO L428 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]=== [2021-04-15 01:14:32,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:14:32,418 INFO L82 PathProgramCache]: Analyzing trace with hash -822940760, now seen corresponding path program 88 times [2021-04-15 01:14:32,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:14:32,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487918472] [2021-04-15 01:14:32,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:14:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:14:33,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:14:33,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487918472] [2021-04-15 01:14:33,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:14:33,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:14:33,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589781197] [2021-04-15 01:14:33,169 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:14:33,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:14:33,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:14:33,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:14:33,169 INFO L87 Difference]: Start difference. First operand 2923 states and 7492 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:14:34,532 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 60 [2021-04-15 01:14:34,707 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 64 [2021-04-15 01:14:34,938 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 66 [2021-04-15 01:14:36,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:14:36,081 INFO L93 Difference]: Finished difference Result 3126 states and 7857 transitions. [2021-04-15 01:14:36,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 01:14:36,081 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:14:36,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:14:36,084 INFO L225 Difference]: With dead ends: 3126 [2021-04-15 01:14:36,084 INFO L226 Difference]: Without dead ends: 2933 [2021-04-15 01:14:36,085 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 2639.1ms TimeCoverageRelationStatistics Valid=424, Invalid=2026, Unknown=0, NotChecked=0, Total=2450 [2021-04-15 01:14:36,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2021-04-15 01:14:36,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 2917. [2021-04-15 01:14:36,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2917 states, 2916 states have (on average 2.565843621399177) internal successors, (7482), 2916 states have internal predecessors, (7482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:14:36,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2917 states to 2917 states and 7482 transitions. [2021-04-15 01:14:36,115 INFO L78 Accepts]: Start accepts. Automaton has 2917 states and 7482 transitions. Word has length 113 [2021-04-15 01:14:36,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:14:36,116 INFO L480 AbstractCegarLoop]: Abstraction has 2917 states and 7482 transitions. [2021-04-15 01:14:36,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:14:36,116 INFO L276 IsEmpty]: Start isEmpty. Operand 2917 states and 7482 transitions. [2021-04-15 01:14:36,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:14:36,118 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:14:36,118 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:14:36,118 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-04-15 01:14:36,118 INFO L428 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]=== [2021-04-15 01:14:36,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:14:36,119 INFO L82 PathProgramCache]: Analyzing trace with hash -942222034, now seen corresponding path program 89 times [2021-04-15 01:14:36,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:14:36,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115562722] [2021-04-15 01:14:36,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:14:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:14:36,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:14:36,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115562722] [2021-04-15 01:14:36,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:14:36,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:14:36,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384265158] [2021-04-15 01:14:36,997 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:14:36,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:14:36,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:14:36,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:14:36,998 INFO L87 Difference]: Start difference. First operand 2917 states and 7482 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:14:38,032 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-04-15 01:14:38,277 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-04-15 01:14:40,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:14:40,041 INFO L93 Difference]: Finished difference Result 3394 states and 8563 transitions. [2021-04-15 01:14:40,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-04-15 01:14:40,042 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:14:40,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:14:40,045 INFO L225 Difference]: With dead ends: 3394 [2021-04-15 01:14:40,045 INFO L226 Difference]: Without dead ends: 3234 [2021-04-15 01:14:40,046 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 2738.0ms TimeCoverageRelationStatistics Valid=467, Invalid=2395, Unknown=0, NotChecked=0, Total=2862 [2021-04-15 01:14:40,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3234 states. [2021-04-15 01:14:40,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3234 to 2950. [2021-04-15 01:14:40,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2950 states, 2949 states have (on average 2.5652763648694474) internal successors, (7565), 2949 states have internal predecessors, (7565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:14:40,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2950 states to 2950 states and 7565 transitions. [2021-04-15 01:14:40,078 INFO L78 Accepts]: Start accepts. Automaton has 2950 states and 7565 transitions. Word has length 113 [2021-04-15 01:14:40,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:14:40,079 INFO L480 AbstractCegarLoop]: Abstraction has 2950 states and 7565 transitions. [2021-04-15 01:14:40,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:14:40,079 INFO L276 IsEmpty]: Start isEmpty. Operand 2950 states and 7565 transitions. [2021-04-15 01:14:40,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:14:40,081 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:14:40,082 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:14:40,082 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-04-15 01:14:40,082 INFO L428 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]=== [2021-04-15 01:14:40,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:14:40,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1702493298, now seen corresponding path program 90 times [2021-04-15 01:14:40,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:14:40,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534548616] [2021-04-15 01:14:40,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:14:40,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:14:40,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:14:40,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534548616] [2021-04-15 01:14:40,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:14:40,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:14:40,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174953988] [2021-04-15 01:14:40,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:14:40,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:14:40,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:14:40,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:14:40,948 INFO L87 Difference]: Start difference. First operand 2950 states and 7565 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:14:42,024 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-04-15 01:14:42,281 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-04-15 01:14:44,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:14:44,085 INFO L93 Difference]: Finished difference Result 3574 states and 9029 transitions. [2021-04-15 01:14:44,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-04-15 01:14:44,086 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:14:44,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:14:44,089 INFO L225 Difference]: With dead ends: 3574 [2021-04-15 01:14:44,089 INFO L226 Difference]: Without dead ends: 3429 [2021-04-15 01:14:44,090 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 2709.3ms TimeCoverageRelationStatistics Valid=467, Invalid=2395, Unknown=0, NotChecked=0, Total=2862 [2021-04-15 01:14:44,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3429 states. [2021-04-15 01:14:44,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3429 to 3104. [2021-04-15 01:14:44,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3104 states, 3103 states have (on average 2.5610699323235577) internal successors, (7947), 3103 states have internal predecessors, (7947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:14:44,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3104 states to 3104 states and 7947 transitions. [2021-04-15 01:14:44,123 INFO L78 Accepts]: Start accepts. Automaton has 3104 states and 7947 transitions. Word has length 113 [2021-04-15 01:14:44,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:14:44,123 INFO L480 AbstractCegarLoop]: Abstraction has 3104 states and 7947 transitions. [2021-04-15 01:14:44,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:14:44,123 INFO L276 IsEmpty]: Start isEmpty. Operand 3104 states and 7947 transitions. [2021-04-15 01:14:44,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:14:44,126 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:14:44,126 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:14:44,126 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-04-15 01:14:44,126 INFO L428 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]=== [2021-04-15 01:14:44,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:14:44,126 INFO L82 PathProgramCache]: Analyzing trace with hash 261603172, now seen corresponding path program 91 times [2021-04-15 01:14:44,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:14:44,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516936530] [2021-04-15 01:14:44,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:14:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:14:45,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:14:45,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516936530] [2021-04-15 01:14:45,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:14:45,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:14:45,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226356069] [2021-04-15 01:14:45,035 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:14:45,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:14:45,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:14:45,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:14:45,035 INFO L87 Difference]: Start difference. First operand 3104 states and 7947 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:14:46,110 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-04-15 01:14:46,359 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-04-15 01:14:48,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:14:48,229 INFO L93 Difference]: Finished difference Result 3751 states and 9433 transitions. [2021-04-15 01:14:48,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-04-15 01:14:48,230 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:14:48,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:14:48,233 INFO L225 Difference]: With dead ends: 3751 [2021-04-15 01:14:48,233 INFO L226 Difference]: Without dead ends: 3500 [2021-04-15 01:14:48,234 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 2902.0ms TimeCoverageRelationStatistics Valid=494, Invalid=2476, Unknown=0, NotChecked=0, Total=2970 [2021-04-15 01:14:48,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3500 states. [2021-04-15 01:14:48,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3500 to 3137. [2021-04-15 01:14:48,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3137 states, 3136 states have (on average 2.551658163265306) internal successors, (8002), 3136 states have internal predecessors, (8002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:14:48,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3137 states to 3137 states and 8002 transitions. [2021-04-15 01:14:48,268 INFO L78 Accepts]: Start accepts. Automaton has 3137 states and 8002 transitions. Word has length 113 [2021-04-15 01:14:48,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:14:48,268 INFO L480 AbstractCegarLoop]: Abstraction has 3137 states and 8002 transitions. [2021-04-15 01:14:48,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:14:48,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3137 states and 8002 transitions. [2021-04-15 01:14:48,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:14:48,271 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:14:48,271 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:14:48,271 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-04-15 01:14:48,271 INFO L428 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]=== [2021-04-15 01:14:48,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:14:48,271 INFO L82 PathProgramCache]: Analyzing trace with hash 89001202, now seen corresponding path program 92 times [2021-04-15 01:14:48,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:14:48,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135201516] [2021-04-15 01:14:48,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:14:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:14:49,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:14:49,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135201516] [2021-04-15 01:14:49,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:14:49,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:14:49,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923273179] [2021-04-15 01:14:49,245 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:14:49,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:14:49,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:14:49,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:14:49,246 INFO L87 Difference]: Start difference. First operand 3137 states and 8002 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:14:50,313 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-04-15 01:14:50,579 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-04-15 01:14:51,361 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-04-15 01:14:51,637 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2021-04-15 01:14:52,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:14:52,645 INFO L93 Difference]: Finished difference Result 3597 states and 9016 transitions. [2021-04-15 01:14:52,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-04-15 01:14:52,646 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:14:52,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:14:52,649 INFO L225 Difference]: With dead ends: 3597 [2021-04-15 01:14:52,649 INFO L226 Difference]: Without dead ends: 3258 [2021-04-15 01:14:52,650 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 3087.6ms TimeCoverageRelationStatistics Valid=498, Invalid=2582, Unknown=0, NotChecked=0, Total=3080 [2021-04-15 01:14:52,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3258 states. [2021-04-15 01:14:52,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3258 to 2895. [2021-04-15 01:14:52,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2895 states, 2894 states have (on average 2.5587422252937113) internal successors, (7405), 2894 states have internal predecessors, (7405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:14:52,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2895 states to 2895 states and 7405 transitions. [2021-04-15 01:14:52,680 INFO L78 Accepts]: Start accepts. Automaton has 2895 states and 7405 transitions. Word has length 113 [2021-04-15 01:14:52,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:14:52,680 INFO L480 AbstractCegarLoop]: Abstraction has 2895 states and 7405 transitions. [2021-04-15 01:14:52,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:14:52,680 INFO L276 IsEmpty]: Start isEmpty. Operand 2895 states and 7405 transitions. [2021-04-15 01:14:52,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:14:52,683 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:14:52,683 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:14:52,683 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-04-15 01:14:52,683 INFO L428 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]=== [2021-04-15 01:14:52,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:14:52,683 INFO L82 PathProgramCache]: Analyzing trace with hash 640649154, now seen corresponding path program 93 times [2021-04-15 01:14:52,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:14:52,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219452935] [2021-04-15 01:14:52,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:14:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:14:53,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:14:53,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219452935] [2021-04-15 01:14:53,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:14:53,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:14:53,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693455443] [2021-04-15 01:14:53,635 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:14:53,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:14:53,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:14:53,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:14:53,636 INFO L87 Difference]: Start difference. First operand 2895 states and 7405 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:14:54,702 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-04-15 01:14:54,960 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-04-15 01:14:55,369 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-04-15 01:14:56,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:14:56,885 INFO L93 Difference]: Finished difference Result 3120 states and 7837 transitions. [2021-04-15 01:14:56,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-04-15 01:14:56,886 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:14:56,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:14:56,889 INFO L225 Difference]: With dead ends: 3120 [2021-04-15 01:14:56,889 INFO L226 Difference]: Without dead ends: 2960 [2021-04-15 01:14:56,889 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 2957.8ms TimeCoverageRelationStatistics Valid=492, Invalid=2478, Unknown=0, NotChecked=0, Total=2970 [2021-04-15 01:14:56,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2021-04-15 01:14:56,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 2897. [2021-04-15 01:14:56,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2897 states, 2896 states have (on average 2.5580110497237567) internal successors, (7408), 2896 states have internal predecessors, (7408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:14:56,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2897 states to 2897 states and 7408 transitions. [2021-04-15 01:14:56,918 INFO L78 Accepts]: Start accepts. Automaton has 2897 states and 7408 transitions. Word has length 113 [2021-04-15 01:14:56,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:14:56,918 INFO L480 AbstractCegarLoop]: Abstraction has 2897 states and 7408 transitions. [2021-04-15 01:14:56,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:14:56,918 INFO L276 IsEmpty]: Start isEmpty. Operand 2897 states and 7408 transitions. [2021-04-15 01:14:56,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:14:56,920 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:14:56,921 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:14:56,921 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-04-15 01:14:56,921 INFO L428 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]=== [2021-04-15 01:14:56,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:14:56,921 INFO L82 PathProgramCache]: Analyzing trace with hash 698730766, now seen corresponding path program 94 times [2021-04-15 01:14:56,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:14:56,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419672704] [2021-04-15 01:14:56,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:14:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:14:57,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:14:57,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419672704] [2021-04-15 01:14:57,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:14:57,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:14:57,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166759139] [2021-04-15 01:14:57,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:14:57,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:14:57,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:14:57,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:14:57,855 INFO L87 Difference]: Start difference. First operand 2897 states and 7408 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:14:58,927 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-04-15 01:14:59,191 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-04-15 01:14:59,617 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-04-15 01:14:59,787 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 68 [2021-04-15 01:15:00,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:15:00,984 INFO L93 Difference]: Finished difference Result 3048 states and 7684 transitions. [2021-04-15 01:15:00,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-04-15 01:15:00,985 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:15:00,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:15:00,988 INFO L225 Difference]: With dead ends: 3048 [2021-04-15 01:15:00,988 INFO L226 Difference]: Without dead ends: 2899 [2021-04-15 01:15:00,988 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 2882.8ms TimeCoverageRelationStatistics Valid=487, Invalid=2375, Unknown=0, NotChecked=0, Total=2862 [2021-04-15 01:15:00,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2021-04-15 01:15:01,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 2895. [2021-04-15 01:15:01,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2895 states, 2894 states have (on average 2.5583966827919835) internal successors, (7404), 2894 states have internal predecessors, (7404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:15:01,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2895 states to 2895 states and 7404 transitions. [2021-04-15 01:15:01,030 INFO L78 Accepts]: Start accepts. Automaton has 2895 states and 7404 transitions. Word has length 113 [2021-04-15 01:15:01,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:15:01,030 INFO L480 AbstractCegarLoop]: Abstraction has 2895 states and 7404 transitions. [2021-04-15 01:15:01,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:01,030 INFO L276 IsEmpty]: Start isEmpty. Operand 2895 states and 7404 transitions. [2021-04-15 01:15:01,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:15:01,034 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:15:01,034 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:15:01,034 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-04-15 01:15:01,034 INFO L428 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]=== [2021-04-15 01:15:01,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:15:01,034 INFO L82 PathProgramCache]: Analyzing trace with hash 98036674, now seen corresponding path program 95 times [2021-04-15 01:15:01,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:15:01,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961103375] [2021-04-15 01:15:01,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:15:01,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:15:01,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:15:01,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961103375] [2021-04-15 01:15:01,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:15:01,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:15:01,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888265167] [2021-04-15 01:15:01,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:15:01,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:15:01,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:15:01,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:15:01,944 INFO L87 Difference]: Start difference. First operand 2895 states and 7404 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:03,138 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-04-15 01:15:03,432 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-04-15 01:15:03,711 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2021-04-15 01:15:05,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:15:05,571 INFO L93 Difference]: Finished difference Result 3311 states and 8326 transitions. [2021-04-15 01:15:05,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-04-15 01:15:05,572 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:15:05,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:15:05,575 INFO L225 Difference]: With dead ends: 3311 [2021-04-15 01:15:05,575 INFO L226 Difference]: Without dead ends: 3166 [2021-04-15 01:15:05,576 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 3095.1ms TimeCoverageRelationStatistics Valid=492, Invalid=2478, Unknown=0, NotChecked=0, Total=2970 [2021-04-15 01:15:05,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3166 states. [2021-04-15 01:15:05,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3166 to 3060. [2021-04-15 01:15:05,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3060 states, 3059 states have (on average 2.552468126838836) internal successors, (7808), 3059 states have internal predecessors, (7808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:15:05,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3060 states to 3060 states and 7808 transitions. [2021-04-15 01:15:05,609 INFO L78 Accepts]: Start accepts. Automaton has 3060 states and 7808 transitions. Word has length 113 [2021-04-15 01:15:05,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:15:05,610 INFO L480 AbstractCegarLoop]: Abstraction has 3060 states and 7808 transitions. [2021-04-15 01:15:05,610 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:05,610 INFO L276 IsEmpty]: Start isEmpty. Operand 3060 states and 7808 transitions. [2021-04-15 01:15:05,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:15:05,612 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:15:05,612 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:15:05,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-04-15 01:15:05,612 INFO L428 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]=== [2021-04-15 01:15:05,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:15:05,613 INFO L82 PathProgramCache]: Analyzing trace with hash 2062133144, now seen corresponding path program 96 times [2021-04-15 01:15:05,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:15:05,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036690512] [2021-04-15 01:15:05,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:15:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:15:06,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:15:06,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036690512] [2021-04-15 01:15:06,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:15:06,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:15:06,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132535912] [2021-04-15 01:15:06,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:15:06,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:15:06,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:15:06,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:15:06,715 INFO L87 Difference]: Start difference. First operand 3060 states and 7808 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:07,837 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-04-15 01:15:08,024 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-04-15 01:15:08,343 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-04-15 01:15:08,563 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2021-04-15 01:15:08,745 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2021-04-15 01:15:10,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:15:10,591 INFO L93 Difference]: Finished difference Result 3488 states and 8730 transitions. [2021-04-15 01:15:10,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-04-15 01:15:10,592 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:15:10,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:15:10,595 INFO L225 Difference]: With dead ends: 3488 [2021-04-15 01:15:10,595 INFO L226 Difference]: Without dead ends: 3237 [2021-04-15 01:15:10,596 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 3420.0ms TimeCoverageRelationStatistics Valid=521, Invalid=2559, Unknown=0, NotChecked=0, Total=3080 [2021-04-15 01:15:10,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3237 states. [2021-04-15 01:15:10,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3237 to 3093. [2021-04-15 01:15:10,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3093 states, 3092 states have (on average 2.5430142302716687) internal successors, (7863), 3092 states have internal predecessors, (7863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:15:10,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3093 states to 3093 states and 7863 transitions. [2021-04-15 01:15:10,629 INFO L78 Accepts]: Start accepts. Automaton has 3093 states and 7863 transitions. Word has length 113 [2021-04-15 01:15:10,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:15:10,630 INFO L480 AbstractCegarLoop]: Abstraction has 3093 states and 7863 transitions. [2021-04-15 01:15:10,630 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:10,630 INFO L276 IsEmpty]: Start isEmpty. Operand 3093 states and 7863 transitions. [2021-04-15 01:15:10,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:15:10,632 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:15:10,632 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:15:10,632 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-04-15 01:15:10,632 INFO L428 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]=== [2021-04-15 01:15:10,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:15:10,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1889531174, now seen corresponding path program 97 times [2021-04-15 01:15:10,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:15:10,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417551813] [2021-04-15 01:15:10,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:15:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:15:11,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:15:11,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417551813] [2021-04-15 01:15:11,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:15:11,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:15:11,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582539849] [2021-04-15 01:15:11,663 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:15:11,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:15:11,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:15:11,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:15:11,663 INFO L87 Difference]: Start difference. First operand 3093 states and 7863 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:12,855 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-04-15 01:15:13,153 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-04-15 01:15:13,362 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2021-04-15 01:15:15,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:15:15,461 INFO L93 Difference]: Finished difference Result 3334 states and 8313 transitions. [2021-04-15 01:15:15,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-04-15 01:15:15,462 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:15:15,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:15:15,465 INFO L225 Difference]: With dead ends: 3334 [2021-04-15 01:15:15,465 INFO L226 Difference]: Without dead ends: 3050 [2021-04-15 01:15:15,466 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 3431.5ms TimeCoverageRelationStatistics Valid=523, Invalid=2669, Unknown=0, NotChecked=0, Total=3192 [2021-04-15 01:15:15,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2021-04-15 01:15:15,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 2906. [2021-04-15 01:15:15,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2906 states, 2905 states have (on average 2.5524956970740105) internal successors, (7415), 2905 states have internal predecessors, (7415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:15:15,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2906 states to 2906 states and 7415 transitions. [2021-04-15 01:15:15,499 INFO L78 Accepts]: Start accepts. Automaton has 2906 states and 7415 transitions. Word has length 113 [2021-04-15 01:15:15,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:15:15,499 INFO L480 AbstractCegarLoop]: Abstraction has 2906 states and 7415 transitions. [2021-04-15 01:15:15,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:15,499 INFO L276 IsEmpty]: Start isEmpty. Operand 2906 states and 7415 transitions. [2021-04-15 01:15:15,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:15:15,501 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:15:15,502 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:15:15,502 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-04-15 01:15:15,502 INFO L428 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]=== [2021-04-15 01:15:15,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:15:15,502 INFO L82 PathProgramCache]: Analyzing trace with hash -820734290, now seen corresponding path program 98 times [2021-04-15 01:15:15,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:15:15,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701098148] [2021-04-15 01:15:15,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:15:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:15:16,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:15:16,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701098148] [2021-04-15 01:15:16,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:15:16,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:15:16,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671419347] [2021-04-15 01:15:16,503 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:15:16,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:15:16,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:15:16,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:15:16,503 INFO L87 Difference]: Start difference. First operand 2906 states and 7415 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:17,726 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-04-15 01:15:18,010 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-04-15 01:15:18,224 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2021-04-15 01:15:18,646 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 68 [2021-04-15 01:15:19,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:15:19,954 INFO L93 Difference]: Finished difference Result 3059 states and 7693 transitions. [2021-04-15 01:15:19,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-04-15 01:15:19,954 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:15:19,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:15:19,957 INFO L225 Difference]: With dead ends: 3059 [2021-04-15 01:15:19,958 INFO L226 Difference]: Without dead ends: 2890 [2021-04-15 01:15:19,958 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 3129.1ms TimeCoverageRelationStatistics Valid=487, Invalid=2375, Unknown=0, NotChecked=0, Total=2862 [2021-04-15 01:15:19,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2890 states. [2021-04-15 01:15:19,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2890 to 2884. [2021-04-15 01:15:19,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2884 states, 2883 states have (on average 2.557058619493583) internal successors, (7372), 2883 states have internal predecessors, (7372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:15:19,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2884 states to 2884 states and 7372 transitions. [2021-04-15 01:15:19,989 INFO L78 Accepts]: Start accepts. Automaton has 2884 states and 7372 transitions. Word has length 113 [2021-04-15 01:15:19,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:15:19,989 INFO L480 AbstractCegarLoop]: Abstraction has 2884 states and 7372 transitions. [2021-04-15 01:15:19,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:19,989 INFO L276 IsEmpty]: Start isEmpty. Operand 2884 states and 7372 transitions. [2021-04-15 01:15:19,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:15:19,992 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:15:19,992 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:15:19,992 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-04-15 01:15:19,992 INFO L428 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]=== [2021-04-15 01:15:19,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:15:19,992 INFO L82 PathProgramCache]: Analyzing trace with hash -10965868, now seen corresponding path program 99 times [2021-04-15 01:15:19,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:15:19,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424620218] [2021-04-15 01:15:19,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:15:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:15:21,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:15:21,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424620218] [2021-04-15 01:15:21,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:15:21,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:15:21,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985764942] [2021-04-15 01:15:21,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:15:21,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:15:21,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:15:21,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:15:21,062 INFO L87 Difference]: Start difference. First operand 2884 states and 7372 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:22,097 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-04-15 01:15:22,272 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-04-15 01:15:22,746 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2021-04-15 01:15:22,988 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 64 [2021-04-15 01:15:24,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:15:24,563 INFO L93 Difference]: Finished difference Result 3187 states and 7951 transitions. [2021-04-15 01:15:24,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 01:15:24,564 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:15:24,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:15:24,567 INFO L225 Difference]: With dead ends: 3187 [2021-04-15 01:15:24,567 INFO L226 Difference]: Without dead ends: 2990 [2021-04-15 01:15:24,568 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 3120.6ms TimeCoverageRelationStatistics Valid=455, Invalid=2301, Unknown=0, NotChecked=0, Total=2756 [2021-04-15 01:15:24,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2021-04-15 01:15:24,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2896. [2021-04-15 01:15:24,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2896 states, 2895 states have (on average 2.555440414507772) internal successors, (7398), 2895 states have internal predecessors, (7398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:15:24,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2896 states to 2896 states and 7398 transitions. [2021-04-15 01:15:24,600 INFO L78 Accepts]: Start accepts. Automaton has 2896 states and 7398 transitions. Word has length 113 [2021-04-15 01:15:24,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:15:24,600 INFO L480 AbstractCegarLoop]: Abstraction has 2896 states and 7398 transitions. [2021-04-15 01:15:24,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:24,600 INFO L276 IsEmpty]: Start isEmpty. Operand 2896 states and 7398 transitions. [2021-04-15 01:15:24,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:15:24,603 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:15:24,603 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:15:24,603 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-04-15 01:15:24,603 INFO L428 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]=== [2021-04-15 01:15:24,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:15:24,603 INFO L82 PathProgramCache]: Analyzing trace with hash 47115744, now seen corresponding path program 100 times [2021-04-15 01:15:24,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:15:24,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507851396] [2021-04-15 01:15:24,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:15:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:15:25,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:15:25,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507851396] [2021-04-15 01:15:25,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:15:25,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:15:25,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960039780] [2021-04-15 01:15:25,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:15:25,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:15:25,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:15:25,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:15:25,758 INFO L87 Difference]: Start difference. First operand 2896 states and 7398 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:26,906 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-04-15 01:15:27,348 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2021-04-15 01:15:27,589 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 64 [2021-04-15 01:15:27,793 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 68 [2021-04-15 01:15:29,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:15:29,065 INFO L93 Difference]: Finished difference Result 3097 states and 7760 transitions. [2021-04-15 01:15:29,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 01:15:29,066 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:15:29,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:15:29,069 INFO L225 Difference]: With dead ends: 3097 [2021-04-15 01:15:29,069 INFO L226 Difference]: Without dead ends: 2914 [2021-04-15 01:15:29,069 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 3100.0ms TimeCoverageRelationStatistics Valid=467, Invalid=2289, Unknown=0, NotChecked=0, Total=2756 [2021-04-15 01:15:29,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2021-04-15 01:15:29,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 2893. [2021-04-15 01:15:29,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2893 states, 2892 states have (on average 2.55567081604426) internal successors, (7391), 2892 states have internal predecessors, (7391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:15:29,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 7391 transitions. [2021-04-15 01:15:29,099 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 7391 transitions. Word has length 113 [2021-04-15 01:15:29,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:15:29,099 INFO L480 AbstractCegarLoop]: Abstraction has 2893 states and 7391 transitions. [2021-04-15 01:15:29,099 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:29,099 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 7391 transitions. [2021-04-15 01:15:29,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:15:29,102 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:15:29,102 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:15:29,102 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-04-15 01:15:29,102 INFO L428 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]=== [2021-04-15 01:15:29,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:15:29,102 INFO L82 PathProgramCache]: Analyzing trace with hash 30651502, now seen corresponding path program 101 times [2021-04-15 01:15:29,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:15:29,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017326773] [2021-04-15 01:15:29,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:15:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:15:30,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:15:30,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017326773] [2021-04-15 01:15:30,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:15:30,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:15:30,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033045420] [2021-04-15 01:15:30,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:15:30,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:15:30,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:15:30,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:15:30,107 INFO L87 Difference]: Start difference. First operand 2893 states and 7391 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:31,276 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-04-15 01:15:31,740 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2021-04-15 01:15:31,947 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 66 [2021-04-15 01:15:32,222 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 68 [2021-04-15 01:15:33,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:15:33,416 INFO L93 Difference]: Finished difference Result 3108 states and 7775 transitions. [2021-04-15 01:15:33,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 01:15:33,417 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:15:33,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:15:33,420 INFO L225 Difference]: With dead ends: 3108 [2021-04-15 01:15:33,420 INFO L226 Difference]: Without dead ends: 2914 [2021-04-15 01:15:33,421 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 2921.1ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-04-15 01:15:33,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2021-04-15 01:15:33,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 2888. [2021-04-15 01:15:33,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2888 states, 2887 states have (on average 2.554554901281607) internal successors, (7375), 2887 states have internal predecessors, (7375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:15:33,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 7375 transitions. [2021-04-15 01:15:33,456 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 7375 transitions. Word has length 113 [2021-04-15 01:15:33,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:15:33,456 INFO L480 AbstractCegarLoop]: Abstraction has 2888 states and 7375 transitions. [2021-04-15 01:15:33,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:33,456 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 7375 transitions. [2021-04-15 01:15:33,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:15:33,459 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:15:33,459 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:15:33,459 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-04-15 01:15:33,459 INFO L428 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]=== [2021-04-15 01:15:33,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:15:33,460 INFO L82 PathProgramCache]: Analyzing trace with hash -412354828, now seen corresponding path program 102 times [2021-04-15 01:15:33,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:15:33,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182008740] [2021-04-15 01:15:33,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:15:33,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:15:34,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:15:34,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182008740] [2021-04-15 01:15:34,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:15:34,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:15:34,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932177778] [2021-04-15 01:15:34,441 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:15:34,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:15:34,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:15:34,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:15:34,441 INFO L87 Difference]: Start difference. First operand 2888 states and 7375 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:35,653 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-04-15 01:15:35,866 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-04-15 01:15:36,206 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-04-15 01:15:37,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:15:37,905 INFO L93 Difference]: Finished difference Result 3290 states and 8260 transitions. [2021-04-15 01:15:37,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 01:15:37,906 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:15:37,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:15:37,909 INFO L225 Difference]: With dead ends: 3290 [2021-04-15 01:15:37,909 INFO L226 Difference]: Without dead ends: 3145 [2021-04-15 01:15:37,910 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 2912.4ms TimeCoverageRelationStatistics Valid=455, Invalid=2301, Unknown=0, NotChecked=0, Total=2756 [2021-04-15 01:15:37,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3145 states. [2021-04-15 01:15:37,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3145 to 3020. [2021-04-15 01:15:37,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3020 states, 3019 states have (on average 2.5548194766478964) internal successors, (7713), 3019 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) [2021-04-15 01:15:37,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3020 states to 3020 states and 7713 transitions. [2021-04-15 01:15:37,943 INFO L78 Accepts]: Start accepts. Automaton has 3020 states and 7713 transitions. Word has length 113 [2021-04-15 01:15:37,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:15:37,943 INFO L480 AbstractCegarLoop]: Abstraction has 3020 states and 7713 transitions. [2021-04-15 01:15:37,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:37,943 INFO L276 IsEmpty]: Start isEmpty. Operand 3020 states and 7713 transitions. [2021-04-15 01:15:37,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:15:37,946 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:15:37,946 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:15:37,946 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-04-15 01:15:37,946 INFO L428 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]=== [2021-04-15 01:15:37,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:15:37,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1551741642, now seen corresponding path program 103 times [2021-04-15 01:15:37,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:15:37,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918640321] [2021-04-15 01:15:37,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:15:37,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:15:38,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:15:38,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918640321] [2021-04-15 01:15:38,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:15:38,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:15:38,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418220663] [2021-04-15 01:15:38,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:15:38,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:15:38,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:15:38,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:15:38,924 INFO L87 Difference]: Start difference. First operand 3020 states and 7713 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:40,099 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-04-15 01:15:40,294 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-04-15 01:15:40,609 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-04-15 01:15:42,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:15:42,397 INFO L93 Difference]: Finished difference Result 3467 states and 8664 transitions. [2021-04-15 01:15:42,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-04-15 01:15:42,398 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:15:42,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:15:42,401 INFO L225 Difference]: With dead ends: 3467 [2021-04-15 01:15:42,401 INFO L226 Difference]: Without dead ends: 3216 [2021-04-15 01:15:42,402 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 3006.5ms TimeCoverageRelationStatistics Valid=487, Invalid=2375, Unknown=0, NotChecked=0, Total=2862 [2021-04-15 01:15:42,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3216 states. [2021-04-15 01:15:42,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3216 to 3053. [2021-04-15 01:15:42,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3053 states, 3052 states have (on average 2.54521625163827) internal successors, (7768), 3052 states have internal predecessors, (7768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:15:42,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3053 states to 3053 states and 7768 transitions. [2021-04-15 01:15:42,438 INFO L78 Accepts]: Start accepts. Automaton has 3053 states and 7768 transitions. Word has length 113 [2021-04-15 01:15:42,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:15:42,438 INFO L480 AbstractCegarLoop]: Abstraction has 3053 states and 7768 transitions. [2021-04-15 01:15:42,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:42,438 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states and 7768 transitions. [2021-04-15 01:15:42,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:15:42,441 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:15:42,441 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:15:42,441 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-04-15 01:15:42,441 INFO L428 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]=== [2021-04-15 01:15:42,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:15:42,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1379139672, now seen corresponding path program 104 times [2021-04-15 01:15:42,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:15:42,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19070094] [2021-04-15 01:15:42,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:15:42,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:15:43,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:15:43,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19070094] [2021-04-15 01:15:43,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:15:43,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:15:43,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989243293] [2021-04-15 01:15:43,548 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:15:43,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:15:43,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:15:43,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:15:43,548 INFO L87 Difference]: Start difference. First operand 3053 states and 7768 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:44,621 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-04-15 01:15:44,791 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-04-15 01:15:45,010 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-04-15 01:15:45,342 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-04-15 01:15:47,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:15:47,162 INFO L93 Difference]: Finished difference Result 3313 states and 8247 transitions. [2021-04-15 01:15:47,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-04-15 01:15:47,163 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:15:47,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:15:47,166 INFO L225 Difference]: With dead ends: 3313 [2021-04-15 01:15:47,166 INFO L226 Difference]: Without dead ends: 3029 [2021-04-15 01:15:47,166 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 3269.6ms TimeCoverageRelationStatistics Valid=489, Invalid=2481, Unknown=0, NotChecked=0, Total=2970 [2021-04-15 01:15:47,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3029 states. [2021-04-15 01:15:47,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3029 to 2866. [2021-04-15 01:15:47,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2866 states, 2865 states have (on average 2.554973821989529) internal successors, (7320), 2865 states have internal predecessors, (7320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:15:47,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2866 states to 2866 states and 7320 transitions. [2021-04-15 01:15:47,195 INFO L78 Accepts]: Start accepts. Automaton has 2866 states and 7320 transitions. Word has length 113 [2021-04-15 01:15:47,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:15:47,195 INFO L480 AbstractCegarLoop]: Abstraction has 2866 states and 7320 transitions. [2021-04-15 01:15:47,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:47,196 INFO L276 IsEmpty]: Start isEmpty. Operand 2866 states and 7320 transitions. [2021-04-15 01:15:47,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:15:47,198 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:15:47,198 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:15:47,198 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-04-15 01:15:47,198 INFO L428 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]=== [2021-04-15 01:15:47,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:15:47,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1331125792, now seen corresponding path program 105 times [2021-04-15 01:15:47,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:15:47,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196290175] [2021-04-15 01:15:47,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:15:47,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:15:48,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:15:48,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196290175] [2021-04-15 01:15:48,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:15:48,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:15:48,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556202293] [2021-04-15 01:15:48,099 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:15:48,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:15:48,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:15:48,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:15:48,099 INFO L87 Difference]: Start difference. First operand 2866 states and 7320 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:49,287 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-04-15 01:15:49,490 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-04-15 01:15:49,842 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-04-15 01:15:50,267 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 68 [2021-04-15 01:15:51,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:15:51,572 INFO L93 Difference]: Finished difference Result 3041 states and 7631 transitions. [2021-04-15 01:15:51,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 01:15:51,573 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:15:51,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:15:51,576 INFO L225 Difference]: With dead ends: 3041 [2021-04-15 01:15:51,576 INFO L226 Difference]: Without dead ends: 2883 [2021-04-15 01:15:51,576 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 2998.8ms TimeCoverageRelationStatistics Valid=469, Invalid=2287, Unknown=0, NotChecked=0, Total=2756 [2021-04-15 01:15:51,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2883 states. [2021-04-15 01:15:51,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2883 to 2855. [2021-04-15 01:15:51,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2855 states, 2854 states have (on average 2.5571128241065173) internal successors, (7298), 2854 states have internal predecessors, (7298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:15:51,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 7298 transitions. [2021-04-15 01:15:51,605 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 7298 transitions. Word has length 113 [2021-04-15 01:15:51,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:15:51,605 INFO L480 AbstractCegarLoop]: Abstraction has 2855 states and 7298 transitions. [2021-04-15 01:15:51,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:51,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 7298 transitions. [2021-04-15 01:15:51,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:15:51,607 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:15:51,607 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:15:51,607 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-04-15 01:15:51,607 INFO L428 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]=== [2021-04-15 01:15:51,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:15:51,607 INFO L82 PathProgramCache]: Analyzing trace with hash 171875022, now seen corresponding path program 106 times [2021-04-15 01:15:51,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:15:51,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433251904] [2021-04-15 01:15:51,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:15:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:15:52,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:15:52,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433251904] [2021-04-15 01:15:52,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:15:52,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:15:52,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332692309] [2021-04-15 01:15:52,502 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:15:52,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:15:52,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:15:52,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:15:52,503 INFO L87 Difference]: Start difference. First operand 2855 states and 7298 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:53,270 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2021-04-15 01:15:53,649 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-04-15 01:15:53,849 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-04-15 01:15:54,335 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 66 [2021-04-15 01:15:54,600 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 68 [2021-04-15 01:15:55,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:15:55,816 INFO L93 Difference]: Finished difference Result 3076 states and 7690 transitions. [2021-04-15 01:15:55,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 01:15:55,817 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:15:55,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:15:55,820 INFO L225 Difference]: With dead ends: 3076 [2021-04-15 01:15:55,820 INFO L226 Difference]: Without dead ends: 2823 [2021-04-15 01:15:55,820 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 2891.1ms TimeCoverageRelationStatistics Valid=452, Invalid=2200, Unknown=0, NotChecked=0, Total=2652 [2021-04-15 01:15:55,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2823 states. [2021-04-15 01:15:55,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2823 to 2789. [2021-04-15 01:15:55,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2789 states, 2788 states have (on average 2.5595408895265424) internal successors, (7136), 2788 states have internal predecessors, (7136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:15:55,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2789 states to 2789 states and 7136 transitions. [2021-04-15 01:15:55,849 INFO L78 Accepts]: Start accepts. Automaton has 2789 states and 7136 transitions. Word has length 113 [2021-04-15 01:15:55,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:15:55,849 INFO L480 AbstractCegarLoop]: Abstraction has 2789 states and 7136 transitions. [2021-04-15 01:15:55,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:15:55,849 INFO L276 IsEmpty]: Start isEmpty. Operand 2789 states and 7136 transitions. [2021-04-15 01:15:55,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:15:55,851 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:15:55,851 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:15:55,851 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-04-15 01:15:55,851 INFO L428 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]=== [2021-04-15 01:15:55,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:15:55,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1285233486, now seen corresponding path program 107 times [2021-04-15 01:15:55,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:15:55,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335869073] [2021-04-15 01:15:55,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:15:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:15:56,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:15:56,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335869073] [2021-04-15 01:15:56,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:15:56,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:15:56,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35183579] [2021-04-15 01:15:56,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:15:56,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:15:56,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:15:56,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:15:56,636 INFO L87 Difference]: Start difference. First operand 2789 states and 7136 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:15:57,707 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 55 [2021-04-15 01:15:58,062 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 58 [2021-04-15 01:15:58,234 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 62 [2021-04-15 01:15:58,479 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2021-04-15 01:15:59,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:15:59,597 INFO L93 Difference]: Finished difference Result 2982 states and 7478 transitions. [2021-04-15 01:15:59,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 01:15:59,598 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:15:59,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:15:59,600 INFO L225 Difference]: With dead ends: 2982 [2021-04-15 01:15:59,601 INFO L226 Difference]: Without dead ends: 2791 [2021-04-15 01:15:59,601 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 2654.0ms TimeCoverageRelationStatistics Valid=426, Invalid=2024, Unknown=0, NotChecked=0, Total=2450 [2021-04-15 01:15:59,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states. [2021-04-15 01:15:59,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 2787. [2021-04-15 01:15:59,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2786 states have (on average 2.5599425699928213) internal successors, (7132), 2786 states have internal predecessors, (7132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:15:59,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 7132 transitions. [2021-04-15 01:15:59,629 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 7132 transitions. Word has length 113 [2021-04-15 01:15:59,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:15:59,629 INFO L480 AbstractCegarLoop]: Abstraction has 2787 states and 7132 transitions. [2021-04-15 01:15:59,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:15:59,629 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 7132 transitions. [2021-04-15 01:15:59,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:15:59,631 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:15:59,631 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:15:59,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-04-15 01:15:59,631 INFO L428 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]=== [2021-04-15 01:15:59,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:15:59,631 INFO L82 PathProgramCache]: Analyzing trace with hash -592832274, now seen corresponding path program 108 times [2021-04-15 01:15:59,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:15:59,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728014141] [2021-04-15 01:15:59,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:15:59,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:16:00,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:16:00,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728014141] [2021-04-15 01:16:00,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:16:00,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:16:00,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666653675] [2021-04-15 01:16:00,462 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:16:00,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:16:00,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:16:00,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:16:00,462 INFO L87 Difference]: Start difference. First operand 2787 states and 7132 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:16:01,535 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 55 [2021-04-15 01:16:01,715 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 59 [2021-04-15 01:16:02,118 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 62 [2021-04-15 01:16:02,399 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2021-04-15 01:16:03,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:16:03,590 INFO L93 Difference]: Finished difference Result 2998 states and 7501 transitions. [2021-04-15 01:16:03,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 01:16:03,590 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:16:03,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:16:03,593 INFO L225 Difference]: With dead ends: 2998 [2021-04-15 01:16:03,593 INFO L226 Difference]: Without dead ends: 2809 [2021-04-15 01:16:03,593 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 2779.6ms TimeCoverageRelationStatistics Valid=426, Invalid=2024, Unknown=0, NotChecked=0, Total=2450 [2021-04-15 01:16:03,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2809 states. [2021-04-15 01:16:03,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2809 to 2785. [2021-04-15 01:16:03,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2785 states, 2784 states have (on average 2.5592672413793105) internal successors, (7125), 2784 states have internal predecessors, (7125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:16:03,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 7125 transitions. [2021-04-15 01:16:03,620 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 7125 transitions. Word has length 113 [2021-04-15 01:16:03,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:16:03,620 INFO L480 AbstractCegarLoop]: Abstraction has 2785 states and 7125 transitions. [2021-04-15 01:16:03,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:16:03,620 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 7125 transitions. [2021-04-15 01:16:03,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:16:03,622 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:16:03,622 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:16:03,622 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-04-15 01:16:03,622 INFO L428 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]=== [2021-04-15 01:16:03,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:16:03,622 INFO L82 PathProgramCache]: Analyzing trace with hash 623477196, now seen corresponding path program 109 times [2021-04-15 01:16:03,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:16:03,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746484522] [2021-04-15 01:16:03,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:16:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:16:04,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:16:04,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746484522] [2021-04-15 01:16:04,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:16:04,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:16:04,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728421816] [2021-04-15 01:16:04,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:16:04,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:16:04,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:16:04,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:16:04,602 INFO L87 Difference]: Start difference. First operand 2785 states and 7125 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:16:05,729 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 55 [2021-04-15 01:16:05,918 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 59 [2021-04-15 01:16:06,190 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2021-04-15 01:16:07,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:16:07,901 INFO L93 Difference]: Finished difference Result 3361 states and 8417 transitions. [2021-04-15 01:16:07,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-04-15 01:16:07,902 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:16:07,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:16:07,905 INFO L225 Difference]: With dead ends: 3361 [2021-04-15 01:16:07,905 INFO L226 Difference]: Without dead ends: 3110 [2021-04-15 01:16:07,905 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 3016.5ms TimeCoverageRelationStatistics Valid=487, Invalid=2375, Unknown=0, NotChecked=0, Total=2862 [2021-04-15 01:16:07,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3110 states. [2021-04-15 01:16:07,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3110 to 2950. [2021-04-15 01:16:07,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2950 states, 2949 states have (on average 2.554086130891828) internal successors, (7532), 2949 states have internal predecessors, (7532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:16:07,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2950 states to 2950 states and 7532 transitions. [2021-04-15 01:16:07,934 INFO L78 Accepts]: Start accepts. Automaton has 2950 states and 7532 transitions. Word has length 113 [2021-04-15 01:16:07,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:16:07,934 INFO L480 AbstractCegarLoop]: Abstraction has 2950 states and 7532 transitions. [2021-04-15 01:16:07,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:16:07,935 INFO L276 IsEmpty]: Start isEmpty. Operand 2950 states and 7532 transitions. [2021-04-15 01:16:07,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:16:07,937 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:16:07,937 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:16:07,937 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-04-15 01:16:07,937 INFO L428 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]=== [2021-04-15 01:16:07,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:16:07,937 INFO L82 PathProgramCache]: Analyzing trace with hash -986807262, now seen corresponding path program 110 times [2021-04-15 01:16:07,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:16:07,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610601839] [2021-04-15 01:16:07,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:16:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:16:08,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:16:08,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610601839] [2021-04-15 01:16:08,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:16:08,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:16:08,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926658166] [2021-04-15 01:16:08,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:16:08,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:16:08,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:16:08,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:16:08,917 INFO L87 Difference]: Start difference. First operand 2950 states and 7532 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:16:10,036 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 55 [2021-04-15 01:16:10,229 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 59 [2021-04-15 01:16:10,519 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2021-04-15 01:16:12,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:16:12,326 INFO L93 Difference]: Finished difference Result 3207 states and 8000 transitions. [2021-04-15 01:16:12,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-04-15 01:16:12,327 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:16:12,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:16:12,329 INFO L225 Difference]: With dead ends: 3207 [2021-04-15 01:16:12,329 INFO L226 Difference]: Without dead ends: 3077 [2021-04-15 01:16:12,329 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 3086.7ms TimeCoverageRelationStatistics Valid=489, Invalid=2481, Unknown=0, NotChecked=0, Total=2970 [2021-04-15 01:16:12,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2021-04-15 01:16:12,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 2917. [2021-04-15 01:16:12,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2917 states, 2916 states have (on average 2.5528120713305897) internal successors, (7444), 2916 states have internal predecessors, (7444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:16:12,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2917 states to 2917 states and 7444 transitions. [2021-04-15 01:16:12,358 INFO L78 Accepts]: Start accepts. Automaton has 2917 states and 7444 transitions. Word has length 113 [2021-04-15 01:16:12,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:16:12,358 INFO L480 AbstractCegarLoop]: Abstraction has 2917 states and 7444 transitions. [2021-04-15 01:16:12,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:16:12,358 INFO L276 IsEmpty]: Start isEmpty. Operand 2917 states and 7444 transitions. [2021-04-15 01:16:12,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:16:12,360 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:16:12,360 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:16:12,360 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-04-15 01:16:12,360 INFO L428 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]=== [2021-04-15 01:16:12,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:16:12,361 INFO L82 PathProgramCache]: Analyzing trace with hash 455855826, now seen corresponding path program 111 times [2021-04-15 01:16:12,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:16:12,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562480728] [2021-04-15 01:16:12,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:16:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:16:13,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:16:13,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562480728] [2021-04-15 01:16:13,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:16:13,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:16:13,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114237340] [2021-04-15 01:16:13,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:16:13,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:16:13,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:16:13,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:16:13,386 INFO L87 Difference]: Start difference. First operand 2917 states and 7444 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:16:14,570 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 55 [2021-04-15 01:16:14,752 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 59 [2021-04-15 01:16:15,070 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2021-04-15 01:16:16,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:16:16,873 INFO L93 Difference]: Finished difference Result 3140 states and 7857 transitions. [2021-04-15 01:16:16,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 01:16:16,874 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:16:16,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:16:16,876 INFO L225 Difference]: With dead ends: 3140 [2021-04-15 01:16:16,876 INFO L226 Difference]: Without dead ends: 2841 [2021-04-15 01:16:16,877 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 2991.3ms TimeCoverageRelationStatistics Valid=455, Invalid=2301, Unknown=0, NotChecked=0, Total=2756 [2021-04-15 01:16:16,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2841 states. [2021-04-15 01:16:16,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2841 to 2763. [2021-04-15 01:16:16,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 2.5597393193338163) internal successors, (7070), 2762 states have internal predecessors, (7070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:16:16,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 7070 transitions. [2021-04-15 01:16:16,903 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 7070 transitions. Word has length 113 [2021-04-15 01:16:16,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:16:16,903 INFO L480 AbstractCegarLoop]: Abstraction has 2763 states and 7070 transitions. [2021-04-15 01:16:16,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:16:16,903 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 7070 transitions. [2021-04-15 01:16:16,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:16:16,905 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:16:16,905 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:16:16,908 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-04-15 01:16:16,908 INFO L428 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]=== [2021-04-15 01:16:16,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:16:16,909 INFO L82 PathProgramCache]: Analyzing trace with hash -351417838, now seen corresponding path program 112 times [2021-04-15 01:16:16,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:16:16,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198075847] [2021-04-15 01:16:16,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:16:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:16:17,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:16:17,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198075847] [2021-04-15 01:16:17,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:16:17,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:16:17,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360263954] [2021-04-15 01:16:17,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:16:17,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:16:17,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:16:17,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:16:17,874 INFO L87 Difference]: Start difference. First operand 2763 states and 7070 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:16:19,041 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 55 [2021-04-15 01:16:19,222 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 59 [2021-04-15 01:16:19,523 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2021-04-15 01:16:19,911 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2021-04-15 01:16:20,510 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-04-15 01:16:21,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:16:21,310 INFO L93 Difference]: Finished difference Result 2935 states and 7377 transitions. [2021-04-15 01:16:21,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 01:16:21,310 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:16:21,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:16:21,313 INFO L225 Difference]: With dead ends: 2935 [2021-04-15 01:16:21,313 INFO L226 Difference]: Without dead ends: 2711 [2021-04-15 01:16:21,313 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 3001.3ms TimeCoverageRelationStatistics Valid=467, Invalid=2289, Unknown=0, NotChecked=0, Total=2756 [2021-04-15 01:16:21,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2711 states. [2021-04-15 01:16:21,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2711 to 2686. [2021-04-15 01:16:21,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2686 states, 2685 states have (on average 2.5780260707635008) internal successors, (6922), 2685 states have internal predecessors, (6922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:16:21,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2686 states to 2686 states and 6922 transitions. [2021-04-15 01:16:21,338 INFO L78 Accepts]: Start accepts. Automaton has 2686 states and 6922 transitions. Word has length 113 [2021-04-15 01:16:21,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:16:21,338 INFO L480 AbstractCegarLoop]: Abstraction has 2686 states and 6922 transitions. [2021-04-15 01:16:21,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:16:21,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2686 states and 6922 transitions. [2021-04-15 01:16:21,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:16:21,340 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:16:21,340 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:16:21,340 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-04-15 01:16:21,340 INFO L428 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]=== [2021-04-15 01:16:21,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:16:21,340 INFO L82 PathProgramCache]: Analyzing trace with hash 144634090, now seen corresponding path program 113 times [2021-04-15 01:16:21,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:16:21,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918852799] [2021-04-15 01:16:21,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:16:21,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:16:22,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:16:22,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918852799] [2021-04-15 01:16:22,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:16:22,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:16:22,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706163198] [2021-04-15 01:16:22,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:16:22,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:16:22,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:16:22,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:16:22,195 INFO L87 Difference]: Start difference. First operand 2686 states and 6922 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:16:23,608 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2021-04-15 01:16:23,807 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 62 [2021-04-15 01:16:24,107 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-04-15 01:16:25,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:16:25,316 INFO L93 Difference]: Finished difference Result 3058 states and 7679 transitions. [2021-04-15 01:16:25,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 01:16:25,317 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:16:25,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:16:25,319 INFO L225 Difference]: With dead ends: 3058 [2021-04-15 01:16:25,319 INFO L226 Difference]: Without dead ends: 2871 [2021-04-15 01:16:25,319 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 2754.2ms TimeCoverageRelationStatistics Valid=426, Invalid=2024, Unknown=0, NotChecked=0, Total=2450 [2021-04-15 01:16:25,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2021-04-15 01:16:25,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 2730. [2021-04-15 01:16:25,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2730 states, 2729 states have (on average 2.5727372663979478) internal successors, (7021), 2729 states have internal predecessors, (7021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:16:25,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2730 states to 2730 states and 7021 transitions. [2021-04-15 01:16:25,344 INFO L78 Accepts]: Start accepts. Automaton has 2730 states and 7021 transitions. Word has length 113 [2021-04-15 01:16:25,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:16:25,345 INFO L480 AbstractCegarLoop]: Abstraction has 2730 states and 7021 transitions. [2021-04-15 01:16:25,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:16:25,345 INFO L276 IsEmpty]: Start isEmpty. Operand 2730 states and 7021 transitions. [2021-04-15 01:16:25,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:16:25,347 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:16:25,347 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:16:25,347 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-04-15 01:16:25,347 INFO L428 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]=== [2021-04-15 01:16:25,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:16:25,347 INFO L82 PathProgramCache]: Analyzing trace with hash 2108568934, now seen corresponding path program 114 times [2021-04-15 01:16:25,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:16:25,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903886559] [2021-04-15 01:16:25,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:16:25,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:16:26,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:16:26,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903886559] [2021-04-15 01:16:26,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:16:26,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:16:26,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973224325] [2021-04-15 01:16:26,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:16:26,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:16:26,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:16:26,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:16:26,171 INFO L87 Difference]: Start difference. First operand 2730 states and 7021 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:16:27,560 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2021-04-15 01:16:27,823 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-04-15 01:16:28,205 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2021-04-15 01:16:28,352 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2021-04-15 01:16:28,575 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2021-04-15 01:16:29,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:16:29,332 INFO L93 Difference]: Finished difference Result 3144 states and 7849 transitions. [2021-04-15 01:16:29,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 01:16:29,333 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:16:29,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:16:29,335 INFO L225 Difference]: With dead ends: 3144 [2021-04-15 01:16:29,336 INFO L226 Difference]: Without dead ends: 2947 [2021-04-15 01:16:29,336 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 2791.8ms TimeCoverageRelationStatistics Valid=433, Invalid=2117, Unknown=0, NotChecked=0, Total=2550 [2021-04-15 01:16:29,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states. [2021-04-15 01:16:29,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 2733. [2021-04-15 01:16:29,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2733 states, 2732 states have (on average 2.571376281112738) internal successors, (7025), 2732 states have internal predecessors, (7025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:16:29,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2733 states to 2733 states and 7025 transitions. [2021-04-15 01:16:29,363 INFO L78 Accepts]: Start accepts. Automaton has 2733 states and 7025 transitions. Word has length 113 [2021-04-15 01:16:29,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:16:29,363 INFO L480 AbstractCegarLoop]: Abstraction has 2733 states and 7025 transitions. [2021-04-15 01:16:29,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:16:29,364 INFO L276 IsEmpty]: Start isEmpty. Operand 2733 states and 7025 transitions. [2021-04-15 01:16:29,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:16:29,365 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:16:29,366 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:16:29,366 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-04-15 01:16:29,366 INFO L428 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]=== [2021-04-15 01:16:29,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:16:29,366 INFO L82 PathProgramCache]: Analyzing trace with hash 482036556, now seen corresponding path program 115 times [2021-04-15 01:16:29,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:16:29,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906866820] [2021-04-15 01:16:29,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:16:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:16:30,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:16:30,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906866820] [2021-04-15 01:16:30,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:16:30,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:16:30,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168827198] [2021-04-15 01:16:30,250 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:16:30,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:16:30,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:16:30,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:16:30,251 INFO L87 Difference]: Start difference. First operand 2733 states and 7025 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:16:31,611 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2021-04-15 01:16:31,867 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-04-15 01:16:32,051 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-04-15 01:16:32,211 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-04-15 01:16:33,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:16:33,209 INFO L93 Difference]: Finished difference Result 3048 states and 7656 transitions. [2021-04-15 01:16:33,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 01:16:33,210 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:16:33,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:16:33,213 INFO L225 Difference]: With dead ends: 3048 [2021-04-15 01:16:33,213 INFO L226 Difference]: Without dead ends: 2858 [2021-04-15 01:16:33,213 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 2742.9ms TimeCoverageRelationStatistics Valid=427, Invalid=2023, Unknown=0, NotChecked=0, Total=2450 [2021-04-15 01:16:33,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2858 states. [2021-04-15 01:16:33,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2858 to 2723. [2021-04-15 01:16:33,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2723 states, 2722 states have (on average 2.5723732549595884) internal successors, (7002), 2722 states have internal predecessors, (7002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:16:33,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2723 states to 2723 states and 7002 transitions. [2021-04-15 01:16:33,241 INFO L78 Accepts]: Start accepts. Automaton has 2723 states and 7002 transitions. Word has length 113 [2021-04-15 01:16:33,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:16:33,241 INFO L480 AbstractCegarLoop]: Abstraction has 2723 states and 7002 transitions. [2021-04-15 01:16:33,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:16:33,241 INFO L276 IsEmpty]: Start isEmpty. Operand 2723 states and 7002 transitions. [2021-04-15 01:16:33,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:16:33,243 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:16:33,243 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:16:33,243 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-04-15 01:16:33,243 INFO L428 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]=== [2021-04-15 01:16:33,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:16:33,244 INFO L82 PathProgramCache]: Analyzing trace with hash -389314452, now seen corresponding path program 116 times [2021-04-15 01:16:33,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:16:33,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515386579] [2021-04-15 01:16:33,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:16:33,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:16:34,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:16:34,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515386579] [2021-04-15 01:16:34,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:16:34,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:16:34,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486872312] [2021-04-15 01:16:34,066 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:16:34,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:16:34,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:16:34,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:16:34,067 INFO L87 Difference]: Start difference. First operand 2723 states and 7002 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:16:35,427 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2021-04-15 01:16:35,868 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-04-15 01:16:36,151 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2021-04-15 01:16:36,321 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2021-04-15 01:16:36,726 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2021-04-15 01:16:37,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:16:37,772 INFO L93 Difference]: Finished difference Result 3426 states and 8413 transitions. [2021-04-15 01:16:37,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-04-15 01:16:37,773 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:16:37,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:16:37,776 INFO L225 Difference]: With dead ends: 3426 [2021-04-15 01:16:37,776 INFO L226 Difference]: Without dead ends: 3169 [2021-04-15 01:16:37,776 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 545 ImplicationChecksByTransitivity, 3284.1ms TimeCoverageRelationStatistics Valid=539, Invalid=2541, Unknown=0, NotChecked=0, Total=3080 [2021-04-15 01:16:37,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3169 states. [2021-04-15 01:16:37,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3169 to 2732. [2021-04-15 01:16:37,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2732 states, 2731 states have (on average 2.5682900036616623) internal successors, (7014), 2731 states have internal predecessors, (7014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:16:37,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2732 states to 2732 states and 7014 transitions. [2021-04-15 01:16:37,805 INFO L78 Accepts]: Start accepts. Automaton has 2732 states and 7014 transitions. Word has length 113 [2021-04-15 01:16:37,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:16:37,805 INFO L480 AbstractCegarLoop]: Abstraction has 2732 states and 7014 transitions. [2021-04-15 01:16:37,805 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:16:37,805 INFO L276 IsEmpty]: Start isEmpty. Operand 2732 states and 7014 transitions. [2021-04-15 01:16:37,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:16:37,807 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:16:37,807 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:16:37,807 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-04-15 01:16:37,808 INFO L428 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]=== [2021-04-15 01:16:37,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:16:37,808 INFO L82 PathProgramCache]: Analyzing trace with hash 729900322, now seen corresponding path program 117 times [2021-04-15 01:16:37,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:16:37,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401655407] [2021-04-15 01:16:37,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:16:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:16:38,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:16:38,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401655407] [2021-04-15 01:16:38,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:16:38,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:16:38,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178720161] [2021-04-15 01:16:38,629 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:16:38,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:16:38,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:16:38,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:16:38,630 INFO L87 Difference]: Start difference. First operand 2732 states and 7014 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:16:40,033 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2021-04-15 01:16:40,229 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-04-15 01:16:40,738 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2021-04-15 01:16:40,889 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2021-04-15 01:16:41,154 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2021-04-15 01:16:41,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:16:41,949 INFO L93 Difference]: Finished difference Result 3197 states and 7957 transitions. [2021-04-15 01:16:41,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-04-15 01:16:41,950 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:16:41,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:16:41,953 INFO L225 Difference]: With dead ends: 3197 [2021-04-15 01:16:41,953 INFO L226 Difference]: Without dead ends: 3000 [2021-04-15 01:16:41,953 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 2946.9ms TimeCoverageRelationStatistics Valid=452, Invalid=2200, Unknown=0, NotChecked=0, Total=2652 [2021-04-15 01:16:41,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2021-04-15 01:16:41,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 2735. [2021-04-15 01:16:41,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2735 states, 2734 states have (on average 2.5669348939283103) internal successors, (7018), 2734 states have internal predecessors, (7018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:16:41,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2735 states to 2735 states and 7018 transitions. [2021-04-15 01:16:41,981 INFO L78 Accepts]: Start accepts. Automaton has 2735 states and 7018 transitions. Word has length 113 [2021-04-15 01:16:41,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:16:41,981 INFO L480 AbstractCegarLoop]: Abstraction has 2735 states and 7018 transitions. [2021-04-15 01:16:41,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:16:41,981 INFO L276 IsEmpty]: Start isEmpty. Operand 2735 states and 7018 transitions. [2021-04-15 01:16:41,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:16:41,983 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:16:41,983 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:16:41,984 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-04-15 01:16:41,984 INFO L428 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]=== [2021-04-15 01:16:41,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:16:41,984 INFO L82 PathProgramCache]: Analyzing trace with hash -896632056, now seen corresponding path program 118 times [2021-04-15 01:16:41,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:16:41,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380780209] [2021-04-15 01:16:41,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:16:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:16:42,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:16:42,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380780209] [2021-04-15 01:16:42,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:16:42,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:16:42,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550113117] [2021-04-15 01:16:42,905 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:16:42,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:16:42,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:16:42,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:16:42,905 INFO L87 Difference]: Start difference. First operand 2735 states and 7018 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:16:44,314 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2021-04-15 01:16:44,506 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-04-15 01:16:44,695 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-04-15 01:16:44,966 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2021-04-15 01:16:46,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:16:46,046 INFO L93 Difference]: Finished difference Result 3101 states and 7764 transitions. [2021-04-15 01:16:46,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 01:16:46,047 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:16:46,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:16:46,050 INFO L225 Difference]: With dead ends: 3101 [2021-04-15 01:16:46,050 INFO L226 Difference]: Without dead ends: 2888 [2021-04-15 01:16:46,050 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 2928.4ms TimeCoverageRelationStatistics Valid=445, Invalid=2105, Unknown=0, NotChecked=0, Total=2550 [2021-04-15 01:16:46,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2021-04-15 01:16:46,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 2702. [2021-04-15 01:16:46,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2702 states, 2701 states have (on average 2.5738615327656422) internal successors, (6952), 2701 states have internal predecessors, (6952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:16:46,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2702 states to 2702 states and 6952 transitions. [2021-04-15 01:16:46,078 INFO L78 Accepts]: Start accepts. Automaton has 2702 states and 6952 transitions. Word has length 113 [2021-04-15 01:16:46,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:16:46,078 INFO L480 AbstractCegarLoop]: Abstraction has 2702 states and 6952 transitions. [2021-04-15 01:16:46,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:16:46,078 INFO L276 IsEmpty]: Start isEmpty. Operand 2702 states and 6952 transitions. [2021-04-15 01:16:46,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:16:46,080 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:16:46,080 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:16:46,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-04-15 01:16:46,080 INFO L428 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]=== [2021-04-15 01:16:46,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:16:46,081 INFO L82 PathProgramCache]: Analyzing trace with hash -583411926, now seen corresponding path program 119 times [2021-04-15 01:16:46,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:16:46,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199598002] [2021-04-15 01:16:46,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:16:46,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:16:47,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:16:47,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199598002] [2021-04-15 01:16:47,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:16:47,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:16:47,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392790014] [2021-04-15 01:16:47,097 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:16:47,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:16:47,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:16:47,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:16:47,098 INFO L87 Difference]: Start difference. First operand 2702 states and 6952 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:16:48,390 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 57 [2021-04-15 01:16:48,577 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2021-04-15 01:16:48,759 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2021-04-15 01:16:49,046 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 68 [2021-04-15 01:16:50,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:16:50,202 INFO L93 Difference]: Finished difference Result 3005 states and 7562 transitions. [2021-04-15 01:16:50,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 01:16:50,203 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:16:50,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:16:50,205 INFO L225 Difference]: With dead ends: 3005 [2021-04-15 01:16:50,206 INFO L226 Difference]: Without dead ends: 2808 [2021-04-15 01:16:50,206 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 2921.8ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-04-15 01:16:50,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2808 states. [2021-04-15 01:16:50,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2808 to 2692. [2021-04-15 01:16:50,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2692 states, 2691 states have (on average 2.5756224451876624) internal successors, (6931), 2691 states have internal predecessors, (6931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:16:50,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 6931 transitions. [2021-04-15 01:16:50,233 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 6931 transitions. Word has length 113 [2021-04-15 01:16:50,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:16:50,233 INFO L480 AbstractCegarLoop]: Abstraction has 2692 states and 6931 transitions. [2021-04-15 01:16:50,233 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:16:50,233 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 6931 transitions. [2021-04-15 01:16:50,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:16:50,235 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:16:50,235 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:16:50,235 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-04-15 01:16:50,235 INFO L428 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]=== [2021-04-15 01:16:50,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:16:50,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1643759532, now seen corresponding path program 120 times [2021-04-15 01:16:50,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:16:50,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733377783] [2021-04-15 01:16:50,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:16:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:16:51,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:16:51,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733377783] [2021-04-15 01:16:51,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:16:51,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:16:51,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426187814] [2021-04-15 01:16:51,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:16:51,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:16:51,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:16:51,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:16:51,119 INFO L87 Difference]: Start difference. First operand 2692 states and 6931 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:16:52,534 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2021-04-15 01:16:52,759 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 62 [2021-04-15 01:16:53,048 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-04-15 01:16:54,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:16:54,291 INFO L93 Difference]: Finished difference Result 2962 states and 7441 transitions. [2021-04-15 01:16:54,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 01:16:54,292 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:16:54,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:16:54,296 INFO L225 Difference]: With dead ends: 2962 [2021-04-15 01:16:54,296 INFO L226 Difference]: Without dead ends: 2775 [2021-04-15 01:16:54,296 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 2867.3ms TimeCoverageRelationStatistics Valid=426, Invalid=2024, Unknown=0, NotChecked=0, Total=2450 [2021-04-15 01:16:54,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2775 states. [2021-04-15 01:16:54,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2775 to 2705. [2021-04-15 01:16:54,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2705 states, 2704 states have (on average 2.5717455621301775) internal successors, (6954), 2704 states have internal predecessors, (6954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:16:54,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2705 states to 2705 states and 6954 transitions. [2021-04-15 01:16:54,336 INFO L78 Accepts]: Start accepts. Automaton has 2705 states and 6954 transitions. Word has length 113 [2021-04-15 01:16:54,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:16:54,336 INFO L480 AbstractCegarLoop]: Abstraction has 2705 states and 6954 transitions. [2021-04-15 01:16:54,336 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:16:54,336 INFO L276 IsEmpty]: Start isEmpty. Operand 2705 states and 6954 transitions. [2021-04-15 01:16:54,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:16:54,340 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:16:54,340 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:16:54,340 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-04-15 01:16:54,340 INFO L428 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]=== [2021-04-15 01:16:54,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:16:54,340 INFO L82 PathProgramCache]: Analyzing trace with hash -687272920, now seen corresponding path program 121 times [2021-04-15 01:16:54,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:16:54,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384860359] [2021-04-15 01:16:54,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:16:54,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:16:55,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:16:55,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384860359] [2021-04-15 01:16:55,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:16:55,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:16:55,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948992481] [2021-04-15 01:16:55,192 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:16:55,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:16:55,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:16:55,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:16:55,192 INFO L87 Difference]: Start difference. First operand 2705 states and 6954 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:16:56,390 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 53 [2021-04-15 01:16:56,547 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2021-04-15 01:16:56,792 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-04-15 01:16:57,178 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2021-04-15 01:16:57,325 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2021-04-15 01:16:57,563 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2021-04-15 01:16:58,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:16:58,311 INFO L93 Difference]: Finished difference Result 3035 states and 7590 transitions. [2021-04-15 01:16:58,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 01:16:58,312 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:16:58,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:16:58,314 INFO L225 Difference]: With dead ends: 3035 [2021-04-15 01:16:58,314 INFO L226 Difference]: Without dead ends: 2838 [2021-04-15 01:16:58,314 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 2845.2ms TimeCoverageRelationStatistics Valid=433, Invalid=2117, Unknown=0, NotChecked=0, Total=2550 [2021-04-15 01:16:58,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2838 states. [2021-04-15 01:16:58,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2838 to 2708. [2021-04-15 01:16:58,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2708 states, 2707 states have (on average 2.5703731067602513) internal successors, (6958), 2707 states have internal predecessors, (6958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:16:58,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2708 states to 2708 states and 6958 transitions. [2021-04-15 01:16:58,340 INFO L78 Accepts]: Start accepts. Automaton has 2708 states and 6958 transitions. Word has length 113 [2021-04-15 01:16:58,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:16:58,340 INFO L480 AbstractCegarLoop]: Abstraction has 2708 states and 6958 transitions. [2021-04-15 01:16:58,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:16:58,340 INFO L276 IsEmpty]: Start isEmpty. Operand 2708 states and 6958 transitions. [2021-04-15 01:16:58,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:16:58,342 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:16:58,342 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:16:58,342 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-04-15 01:16:58,343 INFO L428 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]=== [2021-04-15 01:16:58,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:16:58,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1981161998, now seen corresponding path program 122 times [2021-04-15 01:16:58,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:16:58,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976495513] [2021-04-15 01:16:58,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:16:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:16:59,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:16:59,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976495513] [2021-04-15 01:16:59,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:16:59,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:16:59,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490320244] [2021-04-15 01:16:59,219 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:16:59,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:16:59,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:16:59,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:16:59,220 INFO L87 Difference]: Start difference. First operand 2708 states and 6958 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:17:00,612 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2021-04-15 01:17:00,858 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-04-15 01:17:01,050 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-04-15 01:17:01,209 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-04-15 01:17:02,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:17:02,386 INFO L93 Difference]: Finished difference Result 2945 states and 7405 transitions. [2021-04-15 01:17:02,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 01:17:02,387 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:17:02,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:17:02,389 INFO L225 Difference]: With dead ends: 2945 [2021-04-15 01:17:02,389 INFO L226 Difference]: Without dead ends: 2755 [2021-04-15 01:17:02,389 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 2944.9ms TimeCoverageRelationStatistics Valid=443, Invalid=2107, Unknown=0, NotChecked=0, Total=2550 [2021-04-15 01:17:02,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2021-04-15 01:17:02,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2698. [2021-04-15 01:17:02,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2698 states, 2697 states have (on average 2.5739710789766406) internal successors, (6942), 2697 states have internal predecessors, (6942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:17:02,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2698 states to 2698 states and 6942 transitions. [2021-04-15 01:17:02,414 INFO L78 Accepts]: Start accepts. Automaton has 2698 states and 6942 transitions. Word has length 113 [2021-04-15 01:17:02,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:17:02,414 INFO L480 AbstractCegarLoop]: Abstraction has 2698 states and 6942 transitions. [2021-04-15 01:17:02,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:17:02,414 INFO L276 IsEmpty]: Start isEmpty. Operand 2698 states and 6942 transitions. [2021-04-15 01:17:02,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:17:02,416 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:17:02,416 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:17:02,416 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-04-15 01:17:02,416 INFO L428 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]=== [2021-04-15 01:17:02,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:17:02,417 INFO L82 PathProgramCache]: Analyzing trace with hash 291305294, now seen corresponding path program 123 times [2021-04-15 01:17:02,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:17:02,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230033559] [2021-04-15 01:17:02,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:17:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:17:03,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:17:03,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230033559] [2021-04-15 01:17:03,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:17:03,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:17:03,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975331655] [2021-04-15 01:17:03,432 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:17:03,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:17:03,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:17:03,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:17:03,432 INFO L87 Difference]: Start difference. First operand 2698 states and 6942 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:17:04,766 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-04-15 01:17:04,925 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2021-04-15 01:17:05,126 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2021-04-15 01:17:05,428 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 68 [2021-04-15 01:17:06,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:17:06,653 INFO L93 Difference]: Finished difference Result 2939 states and 7402 transitions. [2021-04-15 01:17:06,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 01:17:06,653 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:17:06,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:17:06,656 INFO L225 Difference]: With dead ends: 2939 [2021-04-15 01:17:06,656 INFO L226 Difference]: Without dead ends: 2748 [2021-04-15 01:17:06,657 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 2979.2ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-04-15 01:17:06,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2748 states. [2021-04-15 01:17:06,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2748 to 2694. [2021-04-15 01:17:06,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2694 states, 2693 states have (on average 2.5748236167842555) internal successors, (6934), 2693 states have internal predecessors, (6934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:17:06,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2694 states to 2694 states and 6934 transitions. [2021-04-15 01:17:06,701 INFO L78 Accepts]: Start accepts. Automaton has 2694 states and 6934 transitions. Word has length 113 [2021-04-15 01:17:06,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:17:06,701 INFO L480 AbstractCegarLoop]: Abstraction has 2694 states and 6934 transitions. [2021-04-15 01:17:06,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:17:06,701 INFO L276 IsEmpty]: Start isEmpty. Operand 2694 states and 6934 transitions. [2021-04-15 01:17:06,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:17:06,703 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:17:06,703 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:17:06,703 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-04-15 01:17:06,703 INFO L428 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]=== [2021-04-15 01:17:06,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:17:06,704 INFO L82 PathProgramCache]: Analyzing trace with hash 156421432, now seen corresponding path program 124 times [2021-04-15 01:17:06,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:17:06,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007186694] [2021-04-15 01:17:06,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:17:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:17:07,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:17:07,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007186694] [2021-04-15 01:17:07,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:17:07,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:17:07,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881076728] [2021-04-15 01:17:07,787 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:17:07,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:17:07,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:17:07,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:17:07,787 INFO L87 Difference]: Start difference. First operand 2694 states and 6934 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:17:09,223 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-04-15 01:17:09,397 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2021-04-15 01:17:09,688 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 64 [2021-04-15 01:17:10,088 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2021-04-15 01:17:11,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:17:11,332 INFO L93 Difference]: Finished difference Result 3027 states and 7590 transitions. [2021-04-15 01:17:11,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 01:17:11,333 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:17:11,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:17:11,336 INFO L225 Difference]: With dead ends: 3027 [2021-04-15 01:17:11,336 INFO L226 Difference]: Without dead ends: 2830 [2021-04-15 01:17:11,336 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 3251.7ms TimeCoverageRelationStatistics Valid=455, Invalid=2301, Unknown=0, NotChecked=0, Total=2756 [2021-04-15 01:17:11,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2830 states. [2021-04-15 01:17:11,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2830 to 2706. [2021-04-15 01:17:11,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2706 states, 2705 states have (on average 2.5730129390018486) internal successors, (6960), 2705 states have internal predecessors, (6960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:17:11,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2706 states to 2706 states and 6960 transitions. [2021-04-15 01:17:11,365 INFO L78 Accepts]: Start accepts. Automaton has 2706 states and 6960 transitions. Word has length 113 [2021-04-15 01:17:11,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:17:11,365 INFO L480 AbstractCegarLoop]: Abstraction has 2706 states and 6960 transitions. [2021-04-15 01:17:11,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:17:11,366 INFO L276 IsEmpty]: Start isEmpty. Operand 2706 states and 6960 transitions. [2021-04-15 01:17:11,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:17:11,368 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:17:11,368 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:17:11,368 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-04-15 01:17:11,368 INFO L428 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]=== [2021-04-15 01:17:11,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:17:11,368 INFO L82 PathProgramCache]: Analyzing trace with hash 214503044, now seen corresponding path program 125 times [2021-04-15 01:17:11,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:17:11,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040059683] [2021-04-15 01:17:11,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:17:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:17:12,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:17:12,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040059683] [2021-04-15 01:17:12,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:17:12,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:17:12,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028796025] [2021-04-15 01:17:12,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:17:12,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:17:12,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:17:12,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:17:12,438 INFO L87 Difference]: Start difference. First operand 2706 states and 6960 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:17:13,880 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-04-15 01:17:14,053 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2021-04-15 01:17:14,351 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 64 [2021-04-15 01:17:14,573 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 68 [2021-04-15 01:17:14,739 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-04-15 01:17:16,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:17:16,033 INFO L93 Difference]: Finished difference Result 2937 states and 7399 transitions. [2021-04-15 01:17:16,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 01:17:16,034 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:17:16,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:17:16,037 INFO L225 Difference]: With dead ends: 2937 [2021-04-15 01:17:16,037 INFO L226 Difference]: Without dead ends: 2754 [2021-04-15 01:17:16,037 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 3275.8ms TimeCoverageRelationStatistics Valid=469, Invalid=2287, Unknown=0, NotChecked=0, Total=2756 [2021-04-15 01:17:16,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2021-04-15 01:17:16,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 2703. [2021-04-15 01:17:16,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2703 states, 2702 states have (on average 2.573279052553664) internal successors, (6953), 2702 states have internal predecessors, (6953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:17:16,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2703 states to 2703 states and 6953 transitions. [2021-04-15 01:17:16,066 INFO L78 Accepts]: Start accepts. Automaton has 2703 states and 6953 transitions. Word has length 113 [2021-04-15 01:17:16,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:17:16,066 INFO L480 AbstractCegarLoop]: Abstraction has 2703 states and 6953 transitions. [2021-04-15 01:17:16,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:17:16,066 INFO L276 IsEmpty]: Start isEmpty. Operand 2703 states and 6953 transitions. [2021-04-15 01:17:16,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:17:16,068 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:17:16,068 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:17:16,068 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-04-15 01:17:16,068 INFO L428 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]=== [2021-04-15 01:17:16,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:17:16,068 INFO L82 PathProgramCache]: Analyzing trace with hash 198038802, now seen corresponding path program 126 times [2021-04-15 01:17:16,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:17:16,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226361680] [2021-04-15 01:17:16,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:17:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:17:17,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:17:17,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226361680] [2021-04-15 01:17:17,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:17:17,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:17:17,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601818923] [2021-04-15 01:17:17,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:17:17,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:17:17,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:17:17,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:17:17,153 INFO L87 Difference]: Start difference. First operand 2703 states and 6953 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:17:18,592 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-04-15 01:17:18,772 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2021-04-15 01:17:19,015 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 66 [2021-04-15 01:17:19,352 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 68 [2021-04-15 01:17:19,850 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-04-15 01:17:20,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:17:20,702 INFO L93 Difference]: Finished difference Result 2934 states and 7392 transitions. [2021-04-15 01:17:20,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 01:17:20,703 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:17:20,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:17:20,705 INFO L225 Difference]: With dead ends: 2934 [2021-04-15 01:17:20,705 INFO L226 Difference]: Without dead ends: 2740 [2021-04-15 01:17:20,706 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 3322.5ms TimeCoverageRelationStatistics Valid=452, Invalid=2200, Unknown=0, NotChecked=0, Total=2652 [2021-04-15 01:17:20,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2021-04-15 01:17:20,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 2698. [2021-04-15 01:17:20,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2698 states, 2697 states have (on average 2.5732295142751207) internal successors, (6940), 2697 states have internal predecessors, (6940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:17:20,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2698 states to 2698 states and 6940 transitions. [2021-04-15 01:17:20,735 INFO L78 Accepts]: Start accepts. Automaton has 2698 states and 6940 transitions. Word has length 113 [2021-04-15 01:17:20,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:17:20,735 INFO L480 AbstractCegarLoop]: Abstraction has 2698 states and 6940 transitions. [2021-04-15 01:17:20,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:17:20,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2698 states and 6940 transitions. [2021-04-15 01:17:20,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:17:20,737 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:17:20,737 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:17:20,737 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-04-15 01:17:20,737 INFO L428 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]=== [2021-04-15 01:17:20,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:17:20,738 INFO L82 PathProgramCache]: Analyzing trace with hash -860598520, now seen corresponding path program 127 times [2021-04-15 01:17:20,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:17:20,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054108477] [2021-04-15 01:17:20,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:17:20,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:17:21,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:17:21,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054108477] [2021-04-15 01:17:21,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:17:21,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:17:21,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257627052] [2021-04-15 01:17:21,707 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:17:21,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:17:21,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:17:21,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:17:21,707 INFO L87 Difference]: Start difference. First operand 2698 states and 6940 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:17:23,203 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 53 [2021-04-15 01:17:23,376 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 58 [2021-04-15 01:17:23,596 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 62 [2021-04-15 01:17:23,894 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 64 [2021-04-15 01:17:25,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:17:25,148 INFO L93 Difference]: Finished difference Result 2917 states and 7353 transitions. [2021-04-15 01:17:25,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 01:17:25,149 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:17:25,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:17:25,151 INFO L225 Difference]: With dead ends: 2917 [2021-04-15 01:17:25,151 INFO L226 Difference]: Without dead ends: 2685 [2021-04-15 01:17:25,152 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 3059.6ms TimeCoverageRelationStatistics Valid=426, Invalid=2024, Unknown=0, NotChecked=0, Total=2450 [2021-04-15 01:17:25,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2021-04-15 01:17:25,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 2653. [2021-04-15 01:17:25,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2653 states, 2652 states have (on average 2.576923076923077) internal successors, (6834), 2652 states have internal predecessors, (6834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:17:25,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2653 states to 2653 states and 6834 transitions. [2021-04-15 01:17:25,178 INFO L78 Accepts]: Start accepts. Automaton has 2653 states and 6834 transitions. Word has length 113 [2021-04-15 01:17:25,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:17:25,178 INFO L480 AbstractCegarLoop]: Abstraction has 2653 states and 6834 transitions. [2021-04-15 01:17:25,178 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:17:25,178 INFO L276 IsEmpty]: Start isEmpty. Operand 2653 states and 6834 transitions. [2021-04-15 01:17:25,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:17:25,181 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:17:25,181 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:17:25,181 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-04-15 01:17:25,181 INFO L428 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]=== [2021-04-15 01:17:25,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:17:25,181 INFO L82 PathProgramCache]: Analyzing trace with hash 542710634, now seen corresponding path program 128 times [2021-04-15 01:17:25,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:17:25,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825541602] [2021-04-15 01:17:25,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:17:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:17:25,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:17:25,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825541602] [2021-04-15 01:17:25,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:17:25,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-04-15 01:17:25,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435169868] [2021-04-15 01:17:25,516 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-15 01:17:25,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:17:25,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-15 01:17:25,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-04-15 01:17:25,517 INFO L87 Difference]: Start difference. First operand 2653 states and 6834 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) [2021-04-15 01:17:26,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:17:26,323 INFO L93 Difference]: Finished difference Result 3316 states and 8263 transitions. [2021-04-15 01:17:26,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-04-15 01:17:26,324 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 [2021-04-15 01:17:26,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:17:26,327 INFO L225 Difference]: With dead ends: 3316 [2021-04-15 01:17:26,327 INFO L226 Difference]: Without dead ends: 3316 [2021-04-15 01:17:26,327 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 685.8ms TimeCoverageRelationStatistics Valid=214, Invalid=716, Unknown=0, NotChecked=0, Total=930 [2021-04-15 01:17:26,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3316 states. [2021-04-15 01:17:26,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3316 to 2703. [2021-04-15 01:17:26,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2703 states, 2702 states have (on average 2.5640266469282014) internal successors, (6928), 2702 states have internal predecessors, (6928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:17:26,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2703 states to 2703 states and 6928 transitions. [2021-04-15 01:17:26,357 INFO L78 Accepts]: Start accepts. Automaton has 2703 states and 6928 transitions. Word has length 113 [2021-04-15 01:17:26,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:17:26,357 INFO L480 AbstractCegarLoop]: Abstraction has 2703 states and 6928 transitions. [2021-04-15 01:17:26,358 INFO L481 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) [2021-04-15 01:17:26,358 INFO L276 IsEmpty]: Start isEmpty. Operand 2703 states and 6928 transitions. [2021-04-15 01:17:26,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:17:26,360 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:17:26,360 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:17:26,360 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-04-15 01:17:26,360 INFO L428 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]=== [2021-04-15 01:17:26,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:17:26,360 INFO L82 PathProgramCache]: Analyzing trace with hash 401300424, now seen corresponding path program 129 times [2021-04-15 01:17:26,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:17:26,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284551414] [2021-04-15 01:17:26,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:17:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:17:27,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:17:27,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284551414] [2021-04-15 01:17:27,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:17:27,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:17:27,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904287657] [2021-04-15 01:17:27,294 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:17:27,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:17:27,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:17:27,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:17:27,295 INFO L87 Difference]: Start difference. First operand 2703 states and 6928 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:17:28,317 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 52 [2021-04-15 01:17:28,492 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-04-15 01:17:28,904 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 60 [2021-04-15 01:17:29,130 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 64 [2021-04-15 01:17:29,438 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 66 [2021-04-15 01:17:29,607 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-04-15 01:17:30,112 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2021-04-15 01:17:30,271 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-04-15 01:17:31,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:17:31,772 INFO L93 Difference]: Finished difference Result 3310 states and 8133 transitions. [2021-04-15 01:17:31,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-04-15 01:17:31,773 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:17:31,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:17:31,775 INFO L225 Difference]: With dead ends: 3310 [2021-04-15 01:17:31,775 INFO L226 Difference]: Without dead ends: 3053 [2021-04-15 01:17:31,775 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 3858.7ms TimeCoverageRelationStatistics Valid=578, Invalid=2614, Unknown=0, NotChecked=0, Total=3192 [2021-04-15 01:17:31,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3053 states. [2021-04-15 01:17:31,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3053 to 2763. [2021-04-15 01:17:31,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 2.553584359160029) internal successors, (7053), 2762 states have internal predecessors, (7053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:17:31,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 7053 transitions. [2021-04-15 01:17:31,803 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 7053 transitions. Word has length 113 [2021-04-15 01:17:31,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:17:31,803 INFO L480 AbstractCegarLoop]: Abstraction has 2763 states and 7053 transitions. [2021-04-15 01:17:31,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:17:31,803 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 7053 transitions. [2021-04-15 01:17:31,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:17:31,805 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:17:31,805 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:17:31,805 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-04-15 01:17:31,805 INFO L428 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]=== [2021-04-15 01:17:31,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:17:31,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1929732028, now seen corresponding path program 130 times [2021-04-15 01:17:31,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:17:31,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395712888] [2021-04-15 01:17:31,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:17:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:17:32,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:17:32,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395712888] [2021-04-15 01:17:32,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:17:32,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:17:32,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994386425] [2021-04-15 01:17:32,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:17:32,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:17:32,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:17:32,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:17:32,671 INFO L87 Difference]: Start difference. First operand 2763 states and 7053 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:17:33,773 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 52 [2021-04-15 01:17:33,958 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-04-15 01:17:34,418 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 60 [2021-04-15 01:17:34,677 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 62 [2021-04-15 01:17:35,132 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2021-04-15 01:17:35,314 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2021-04-15 01:17:35,764 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2021-04-15 01:17:36,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:17:36,994 INFO L93 Difference]: Finished difference Result 3337 states and 8164 transitions. [2021-04-15 01:17:36,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-04-15 01:17:36,994 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:17:36,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:17:36,997 INFO L225 Difference]: With dead ends: 3337 [2021-04-15 01:17:36,997 INFO L226 Difference]: Without dead ends: 3140 [2021-04-15 01:17:36,997 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 3643.5ms TimeCoverageRelationStatistics Valid=518, Invalid=2452, Unknown=0, NotChecked=0, Total=2970 [2021-04-15 01:17:37,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3140 states. [2021-04-15 01:17:37,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 2766. [2021-04-15 01:17:37,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2765 states have (on average 2.5522603978300182) internal successors, (7057), 2765 states have internal predecessors, (7057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:17:37,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 7057 transitions. [2021-04-15 01:17:37,025 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 7057 transitions. Word has length 113 [2021-04-15 01:17:37,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:17:37,026 INFO L480 AbstractCegarLoop]: Abstraction has 2766 states and 7057 transitions. [2021-04-15 01:17:37,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:17:37,026 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 7057 transitions. [2021-04-15 01:17:37,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:17:37,028 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:17:37,028 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:17:37,028 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-04-15 01:17:37,028 INFO L428 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]=== [2021-04-15 01:17:37,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:17:37,028 INFO L82 PathProgramCache]: Analyzing trace with hash 738702890, now seen corresponding path program 131 times [2021-04-15 01:17:37,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:17:37,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211935835] [2021-04-15 01:17:37,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:17:37,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:17:37,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:17:37,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211935835] [2021-04-15 01:17:37,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:17:37,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:17:37,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406075141] [2021-04-15 01:17:37,966 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:17:37,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:17:37,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:17:37,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:17:37,967 INFO L87 Difference]: Start difference. First operand 2766 states and 7057 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:17:39,160 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 52 [2021-04-15 01:17:39,360 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-04-15 01:17:39,867 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 60 [2021-04-15 01:17:40,146 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 62 [2021-04-15 01:17:40,375 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 66 [2021-04-15 01:17:40,580 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-04-15 01:17:40,836 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-04-15 01:17:41,115 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-04-15 01:17:42,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:17:42,096 INFO L93 Difference]: Finished difference Result 3089 states and 7685 transitions. [2021-04-15 01:17:42,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 01:17:42,097 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:17:42,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:17:42,100 INFO L225 Difference]: With dead ends: 3089 [2021-04-15 01:17:42,100 INFO L226 Difference]: Without dead ends: 2899 [2021-04-15 01:17:42,100 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 3468.5ms TimeCoverageRelationStatistics Valid=441, Invalid=2109, Unknown=0, NotChecked=0, Total=2550 [2021-04-15 01:17:42,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2021-04-15 01:17:42,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 2756. [2021-04-15 01:17:42,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2756 states, 2755 states have (on average 2.554627949183303) internal successors, (7038), 2755 states have internal predecessors, (7038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:17:42,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2756 states to 2756 states and 7038 transitions. [2021-04-15 01:17:42,128 INFO L78 Accepts]: Start accepts. Automaton has 2756 states and 7038 transitions. Word has length 113 [2021-04-15 01:17:42,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:17:42,128 INFO L480 AbstractCegarLoop]: Abstraction has 2756 states and 7038 transitions. [2021-04-15 01:17:42,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:17:42,128 INFO L276 IsEmpty]: Start isEmpty. Operand 2756 states and 7038 transitions. [2021-04-15 01:17:42,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:17:42,130 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:17:42,130 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:17:42,130 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-04-15 01:17:42,130 INFO L428 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]=== [2021-04-15 01:17:42,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:17:42,130 INFO L82 PathProgramCache]: Analyzing trace with hash -522469918, now seen corresponding path program 132 times [2021-04-15 01:17:42,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:17:42,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83266132] [2021-04-15 01:17:42,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:17:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:17:43,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:17:43,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83266132] [2021-04-15 01:17:43,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:17:43,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:17:43,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980315153] [2021-04-15 01:17:43,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:17:43,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:17:43,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:17:43,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:17:43,157 INFO L87 Difference]: Start difference. First operand 2756 states and 7038 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:17:44,343 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-04-15 01:17:44,536 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-04-15 01:17:44,760 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 59 [2021-04-15 01:17:45,422 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 62 [2021-04-15 01:17:45,697 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 64 [2021-04-15 01:17:46,340 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-04-15 01:17:47,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:17:47,942 INFO L93 Difference]: Finished difference Result 3655 states and 9119 transitions. [2021-04-15 01:17:47,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-04-15 01:17:47,943 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:17:47,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:17:47,946 INFO L225 Difference]: With dead ends: 3655 [2021-04-15 01:17:47,946 INFO L226 Difference]: Without dead ends: 3398 [2021-04-15 01:17:47,946 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 3897.8ms TimeCoverageRelationStatistics Valid=580, Invalid=2612, Unknown=0, NotChecked=0, Total=3192 [2021-04-15 01:17:47,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3398 states. [2021-04-15 01:17:47,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3398 to 2932. [2021-04-15 01:17:47,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2932 states, 2931 states have (on average 2.5803480040941658) internal successors, (7563), 2931 states have internal predecessors, (7563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:17:47,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2932 states to 2932 states and 7563 transitions. [2021-04-15 01:17:47,976 INFO L78 Accepts]: Start accepts. Automaton has 2932 states and 7563 transitions. Word has length 113 [2021-04-15 01:17:47,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:17:47,976 INFO L480 AbstractCegarLoop]: Abstraction has 2932 states and 7563 transitions. [2021-04-15 01:17:47,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:17:47,976 INFO L276 IsEmpty]: Start isEmpty. Operand 2932 states and 7563 transitions. [2021-04-15 01:17:47,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:17:47,978 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:17:47,978 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:17:47,978 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-04-15 01:17:47,978 INFO L428 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]=== [2021-04-15 01:17:47,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:17:47,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1212668702, now seen corresponding path program 133 times [2021-04-15 01:17:47,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:17:47,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003604691] [2021-04-15 01:17:47,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:17:47,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:17:49,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:17:49,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003604691] [2021-04-15 01:17:49,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:17:49,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:17:49,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306762668] [2021-04-15 01:17:49,059 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:17:49,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:17:49,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:17:49,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:17:49,060 INFO L87 Difference]: Start difference. First operand 2932 states and 7563 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:17:50,183 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-04-15 01:17:50,356 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-04-15 01:17:50,564 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 59 [2021-04-15 01:17:50,920 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 61 [2021-04-15 01:17:51,117 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-04-15 01:17:51,753 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-04-15 01:17:51,971 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-04-15 01:17:52,865 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2021-04-15 01:17:54,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:17:54,148 INFO L93 Difference]: Finished difference Result 4621 states and 11739 transitions. [2021-04-15 01:17:54,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-04-15 01:17:54,149 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:17:54,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:17:54,153 INFO L225 Difference]: With dead ends: 4621 [2021-04-15 01:17:54,153 INFO L226 Difference]: Without dead ends: 4230 [2021-04-15 01:17:54,153 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 4221.1ms TimeCoverageRelationStatistics Valid=621, Invalid=2919, Unknown=0, NotChecked=0, Total=3540 [2021-04-15 01:17:54,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4230 states. [2021-04-15 01:17:54,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4230 to 3284. [2021-04-15 01:17:54,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3284 states, 3283 states have (on average 2.581784952787085) internal successors, (8476), 3283 states have internal predecessors, (8476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:17:54,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3284 states to 3284 states and 8476 transitions. [2021-04-15 01:17:54,191 INFO L78 Accepts]: Start accepts. Automaton has 3284 states and 8476 transitions. Word has length 113 [2021-04-15 01:17:54,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:17:54,192 INFO L480 AbstractCegarLoop]: Abstraction has 3284 states and 8476 transitions. [2021-04-15 01:17:54,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:17:54,192 INFO L276 IsEmpty]: Start isEmpty. Operand 3284 states and 8476 transitions. [2021-04-15 01:17:54,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:17:54,195 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:17:54,195 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:17:54,195 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-04-15 01:17:54,195 INFO L428 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]=== [2021-04-15 01:17:54,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:17:54,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1472014136, now seen corresponding path program 134 times [2021-04-15 01:17:54,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:17:54,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951271117] [2021-04-15 01:17:54,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:17:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:17:55,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:17:55,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951271117] [2021-04-15 01:17:55,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:17:55,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:17:55,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638124034] [2021-04-15 01:17:55,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:17:55,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:17:55,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:17:55,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:17:55,339 INFO L87 Difference]: Start difference. First operand 3284 states and 8476 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:17:56,517 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-04-15 01:17:56,700 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-04-15 01:17:56,916 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 59 [2021-04-15 01:17:57,256 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 61 [2021-04-15 01:17:57,987 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-04-15 01:17:58,523 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-04-15 01:17:58,658 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-04-15 01:18:00,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:18:00,429 INFO L93 Difference]: Finished difference Result 4361 states and 11002 transitions. [2021-04-15 01:18:00,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-04-15 01:18:00,430 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:18:00,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:18:00,434 INFO L225 Difference]: With dead ends: 4361 [2021-04-15 01:18:00,434 INFO L226 Difference]: Without dead ends: 4175 [2021-04-15 01:18:00,434 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 4469.5ms TimeCoverageRelationStatistics Valid=642, Invalid=3140, Unknown=0, NotChecked=0, Total=3782 [2021-04-15 01:18:00,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4175 states. [2021-04-15 01:18:00,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4175 to 3229. [2021-04-15 01:18:00,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3229 states, 3228 states have (on average 2.5780669144981414) internal successors, (8322), 3228 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) [2021-04-15 01:18:00,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3229 states to 3229 states and 8322 transitions. [2021-04-15 01:18:00,475 INFO L78 Accepts]: Start accepts. Automaton has 3229 states and 8322 transitions. Word has length 113 [2021-04-15 01:18:00,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:18:00,475 INFO L480 AbstractCegarLoop]: Abstraction has 3229 states and 8322 transitions. [2021-04-15 01:18:00,475 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:18:00,475 INFO L276 IsEmpty]: Start isEmpty. Operand 3229 states and 8322 transitions. [2021-04-15 01:18:00,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:18:00,478 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:18:00,478 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:18:00,478 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-04-15 01:18:00,478 INFO L428 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]=== [2021-04-15 01:18:00,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:18:00,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1380290072, now seen corresponding path program 135 times [2021-04-15 01:18:00,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:18:00,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164292728] [2021-04-15 01:18:00,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:18:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:18:01,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:18:01,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164292728] [2021-04-15 01:18:01,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:18:01,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:18:01,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318582754] [2021-04-15 01:18:01,690 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:18:01,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:18:01,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:18:01,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:18:01,691 INFO L87 Difference]: Start difference. First operand 3229 states and 8322 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:18:02,942 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-04-15 01:18:03,143 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-04-15 01:18:03,395 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 59 [2021-04-15 01:18:03,808 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 61 [2021-04-15 01:18:04,794 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2021-04-15 01:18:05,177 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-04-15 01:18:05,358 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2021-04-15 01:18:05,503 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-04-15 01:18:07,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:18:07,137 INFO L93 Difference]: Finished difference Result 4373 states and 10973 transitions. [2021-04-15 01:18:07,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-04-15 01:18:07,138 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:18:07,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:18:07,142 INFO L225 Difference]: With dead ends: 4373 [2021-04-15 01:18:07,142 INFO L226 Difference]: Without dead ends: 3936 [2021-04-15 01:18:07,143 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 4456.6ms TimeCoverageRelationStatistics Valid=582, Invalid=2958, Unknown=0, NotChecked=0, Total=3540 [2021-04-15 01:18:07,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3936 states. [2021-04-15 01:18:07,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3936 to 2987. [2021-04-15 01:18:07,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2987 states, 2986 states have (on average 2.565974547890154) internal successors, (7662), 2986 states have internal predecessors, (7662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:18:07,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2987 states to 2987 states and 7662 transitions. [2021-04-15 01:18:07,180 INFO L78 Accepts]: Start accepts. Automaton has 2987 states and 7662 transitions. Word has length 113 [2021-04-15 01:18:07,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:18:07,180 INFO L480 AbstractCegarLoop]: Abstraction has 2987 states and 7662 transitions. [2021-04-15 01:18:07,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:18:07,180 INFO L276 IsEmpty]: Start isEmpty. Operand 2987 states and 7662 transitions. [2021-04-15 01:18:07,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:18:07,183 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:18:07,183 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:18:07,183 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-04-15 01:18:07,183 INFO L428 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]=== [2021-04-15 01:18:07,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:18:07,183 INFO L82 PathProgramCache]: Analyzing trace with hash 2107403560, now seen corresponding path program 136 times [2021-04-15 01:18:07,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:18:07,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140561208] [2021-04-15 01:18:07,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:18:07,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:18:08,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:18:08,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140561208] [2021-04-15 01:18:08,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:18:08,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:18:08,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373353364] [2021-04-15 01:18:08,352 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:18:08,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:18:08,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:18:08,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:18:08,353 INFO L87 Difference]: Start difference. First operand 2987 states and 7662 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:18:09,579 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-04-15 01:18:09,763 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-04-15 01:18:09,968 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 59 [2021-04-15 01:18:10,355 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 61 [2021-04-15 01:18:11,018 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 64 [2021-04-15 01:18:11,665 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-04-15 01:18:11,820 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-04-15 01:18:13,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:18:13,435 INFO L93 Difference]: Finished difference Result 3682 states and 9221 transitions. [2021-04-15 01:18:13,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-04-15 01:18:13,436 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:18:13,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:18:13,440 INFO L225 Difference]: With dead ends: 3682 [2021-04-15 01:18:13,440 INFO L226 Difference]: Without dead ends: 3441 [2021-04-15 01:18:13,440 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 4121.7ms TimeCoverageRelationStatistics Valid=631, Invalid=2909, Unknown=0, NotChecked=0, Total=3540 [2021-04-15 01:18:13,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3441 states. [2021-04-15 01:18:13,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3441 to 2943. [2021-04-15 01:18:13,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2943 states, 2942 states have (on average 2.5679809653297077) internal successors, (7555), 2942 states have internal predecessors, (7555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:18:13,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2943 states to 2943 states and 7555 transitions. [2021-04-15 01:18:13,473 INFO L78 Accepts]: Start accepts. Automaton has 2943 states and 7555 transitions. Word has length 113 [2021-04-15 01:18:13,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:18:13,473 INFO L480 AbstractCegarLoop]: Abstraction has 2943 states and 7555 transitions. [2021-04-15 01:18:13,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:18:13,474 INFO L276 IsEmpty]: Start isEmpty. Operand 2943 states and 7555 transitions. [2021-04-15 01:18:13,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:18:13,476 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:18:13,476 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:18:13,476 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-04-15 01:18:13,476 INFO L428 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]=== [2021-04-15 01:18:13,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:18:13,476 INFO L82 PathProgramCache]: Analyzing trace with hash -600707128, now seen corresponding path program 137 times [2021-04-15 01:18:13,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:18:13,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670860848] [2021-04-15 01:18:13,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:18:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:18:14,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:18:14,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670860848] [2021-04-15 01:18:14,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:18:14,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:18:14,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261567147] [2021-04-15 01:18:14,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:18:14,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:18:14,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:18:14,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:18:14,562 INFO L87 Difference]: Start difference. First operand 2943 states and 7555 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:18:15,769 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-04-15 01:18:15,962 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-04-15 01:18:16,271 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-04-15 01:18:17,190 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2021-04-15 01:18:17,498 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 57 [2021-04-15 01:18:17,680 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2021-04-15 01:18:18,005 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 58 [2021-04-15 01:18:19,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:18:19,545 INFO L93 Difference]: Finished difference Result 4087 states and 10188 transitions. [2021-04-15 01:18:19,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-04-15 01:18:19,545 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:18:19,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:18:19,549 INFO L225 Difference]: With dead ends: 4087 [2021-04-15 01:18:19,549 INFO L226 Difference]: Without dead ends: 3927 [2021-04-15 01:18:19,550 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 4126.0ms TimeCoverageRelationStatistics Valid=545, Invalid=2877, Unknown=0, NotChecked=0, Total=3422 [2021-04-15 01:18:19,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3927 states. [2021-04-15 01:18:19,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3927 to 2943. [2021-04-15 01:18:19,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2943 states, 2942 states have (on average 2.566281441196465) internal successors, (7550), 2942 states have internal predecessors, (7550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:18:19,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2943 states to 2943 states and 7550 transitions. [2021-04-15 01:18:19,587 INFO L78 Accepts]: Start accepts. Automaton has 2943 states and 7550 transitions. Word has length 113 [2021-04-15 01:18:19,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:18:19,587 INFO L480 AbstractCegarLoop]: Abstraction has 2943 states and 7550 transitions. [2021-04-15 01:18:19,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:18:19,587 INFO L276 IsEmpty]: Start isEmpty. Operand 2943 states and 7550 transitions. [2021-04-15 01:18:19,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:18:19,590 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:18:19,590 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:18:19,590 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-04-15 01:18:19,590 INFO L428 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]=== [2021-04-15 01:18:19,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:18:19,590 INFO L82 PathProgramCache]: Analyzing trace with hash -510693730, now seen corresponding path program 138 times [2021-04-15 01:18:19,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:18:19,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583753754] [2021-04-15 01:18:19,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:18:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:18:20,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:18:20,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583753754] [2021-04-15 01:18:20,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:18:20,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:18:20,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864958831] [2021-04-15 01:18:20,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:18:20,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:18:20,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:18:20,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:18:20,622 INFO L87 Difference]: Start difference. First operand 2943 states and 7550 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:18:21,775 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-04-15 01:18:21,963 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-04-15 01:18:22,251 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-04-15 01:18:22,722 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2021-04-15 01:18:22,917 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2021-04-15 01:18:23,484 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2021-04-15 01:18:25,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:18:25,071 INFO L93 Difference]: Finished difference Result 4306 states and 10801 transitions. [2021-04-15 01:18:25,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-04-15 01:18:25,072 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:18:25,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:18:25,077 INFO L225 Difference]: With dead ends: 4306 [2021-04-15 01:18:25,077 INFO L226 Difference]: Without dead ends: 4055 [2021-04-15 01:18:25,077 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 3747.3ms TimeCoverageRelationStatistics Valid=522, Invalid=2558, Unknown=0, NotChecked=0, Total=3080 [2021-04-15 01:18:25,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4055 states. [2021-04-15 01:18:25,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4055 to 3130. [2021-04-15 01:18:25,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3130 states, 3129 states have (on average 2.557046979865772) internal successors, (8001), 3129 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) [2021-04-15 01:18:25,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3130 states to 3130 states and 8001 transitions. [2021-04-15 01:18:25,118 INFO L78 Accepts]: Start accepts. Automaton has 3130 states and 8001 transitions. Word has length 113 [2021-04-15 01:18:25,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:18:25,118 INFO L480 AbstractCegarLoop]: Abstraction has 3130 states and 8001 transitions. [2021-04-15 01:18:25,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:18:25,118 INFO L276 IsEmpty]: Start isEmpty. Operand 3130 states and 8001 transitions. [2021-04-15 01:18:25,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:18:25,121 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:18:25,121 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:18:25,121 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-04-15 01:18:25,121 INFO L428 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]=== [2021-04-15 01:18:25,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:18:25,121 INFO L82 PathProgramCache]: Analyzing trace with hash 697731634, now seen corresponding path program 139 times [2021-04-15 01:18:25,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:18:25,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288566271] [2021-04-15 01:18:25,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:18:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:18:26,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:18:26,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288566271] [2021-04-15 01:18:26,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:18:26,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:18:26,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027385950] [2021-04-15 01:18:26,236 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:18:26,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:18:26,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:18:26,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:18:26,237 INFO L87 Difference]: Start difference. First operand 3130 states and 8001 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:18:27,532 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-04-15 01:18:27,734 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-04-15 01:18:28,056 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-04-15 01:18:28,534 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2021-04-15 01:18:28,730 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2021-04-15 01:18:29,340 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2021-04-15 01:18:29,698 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2021-04-15 01:18:30,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:18:30,987 INFO L93 Difference]: Finished difference Result 4152 states and 10384 transitions. [2021-04-15 01:18:30,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-04-15 01:18:30,988 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:18:30,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:18:30,992 INFO L225 Difference]: With dead ends: 4152 [2021-04-15 01:18:30,992 INFO L226 Difference]: Without dead ends: 4022 [2021-04-15 01:18:30,993 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 3894.2ms TimeCoverageRelationStatistics Valid=524, Invalid=2668, Unknown=0, NotChecked=0, Total=3192 [2021-04-15 01:18:31,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4022 states. [2021-04-15 01:18:31,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4022 to 3097. [2021-04-15 01:18:31,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3097 states, 3096 states have (on average 2.5558785529715764) internal successors, (7913), 3096 states have internal predecessors, (7913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:18:31,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3097 states to 3097 states and 7913 transitions. [2021-04-15 01:18:31,033 INFO L78 Accepts]: Start accepts. Automaton has 3097 states and 7913 transitions. Word has length 113 [2021-04-15 01:18:31,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:18:31,033 INFO L480 AbstractCegarLoop]: Abstraction has 3097 states and 7913 transitions. [2021-04-15 01:18:31,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:18:31,033 INFO L276 IsEmpty]: Start isEmpty. Operand 3097 states and 7913 transitions. [2021-04-15 01:18:31,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:18:31,036 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:18:31,036 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:18:31,036 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-04-15 01:18:31,036 INFO L428 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]=== [2021-04-15 01:18:31,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:18:31,036 INFO L82 PathProgramCache]: Analyzing trace with hash 342764932, now seen corresponding path program 140 times [2021-04-15 01:18:31,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:18:31,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203462134] [2021-04-15 01:18:31,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:18:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:18:32,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:18:32,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203462134] [2021-04-15 01:18:32,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:18:32,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:18:32,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210767945] [2021-04-15 01:18:32,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:18:32,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:18:32,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:18:32,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:18:32,072 INFO L87 Difference]: Start difference. First operand 3097 states and 7913 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:18:33,375 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-04-15 01:18:33,670 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-04-15 01:18:34,090 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2021-04-15 01:18:34,880 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2021-04-15 01:18:35,044 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2021-04-15 01:18:35,296 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2021-04-15 01:18:36,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:18:36,264 INFO L93 Difference]: Finished difference Result 4085 states and 10241 transitions. [2021-04-15 01:18:36,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-04-15 01:18:36,265 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:18:36,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:18:36,270 INFO L225 Difference]: With dead ends: 4085 [2021-04-15 01:18:36,270 INFO L226 Difference]: Without dead ends: 3731 [2021-04-15 01:18:36,270 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 3446.1ms TimeCoverageRelationStatistics Valid=490, Invalid=2480, Unknown=0, NotChecked=0, Total=2970 [2021-04-15 01:18:36,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3731 states. [2021-04-15 01:18:36,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3731 to 2888. [2021-04-15 01:18:36,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2888 states, 2887 states have (on average 2.55975060616557) internal successors, (7390), 2887 states have internal predecessors, (7390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:18:36,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 7390 transitions. [2021-04-15 01:18:36,304 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 7390 transitions. Word has length 113 [2021-04-15 01:18:36,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:18:36,304 INFO L480 AbstractCegarLoop]: Abstraction has 2888 states and 7390 transitions. [2021-04-15 01:18:36,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:18:36,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 7390 transitions. [2021-04-15 01:18:36,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:18:36,307 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:18:36,307 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:18:36,307 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-04-15 01:18:36,307 INFO L428 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]=== [2021-04-15 01:18:36,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:18:36,307 INFO L82 PathProgramCache]: Analyzing trace with hash 117908438, now seen corresponding path program 141 times [2021-04-15 01:18:36,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:18:36,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340911801] [2021-04-15 01:18:36,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:18:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:18:37,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:18:37,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340911801] [2021-04-15 01:18:37,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:18:37,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:18:37,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096968582] [2021-04-15 01:18:37,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:18:37,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:18:37,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:18:37,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:18:37,278 INFO L87 Difference]: Start difference. First operand 2888 states and 7390 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:18:38,417 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-04-15 01:18:38,607 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-04-15 01:18:38,926 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-04-15 01:18:39,537 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 60 [2021-04-15 01:18:39,980 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2021-04-15 01:18:40,271 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2021-04-15 01:18:40,632 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2021-04-15 01:18:41,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:18:41,968 INFO L93 Difference]: Finished difference Result 3555 states and 8843 transitions. [2021-04-15 01:18:41,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-04-15 01:18:41,968 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:18:41,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:18:41,971 INFO L225 Difference]: With dead ends: 3555 [2021-04-15 01:18:41,971 INFO L226 Difference]: Without dead ends: 3395 [2021-04-15 01:18:41,972 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 3883.3ms TimeCoverageRelationStatistics Valid=584, Invalid=2838, Unknown=0, NotChecked=0, Total=3422 [2021-04-15 01:18:41,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3395 states. [2021-04-15 01:18:41,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3395 to 2890. [2021-04-15 01:18:41,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2890 states, 2889 states have (on average 2.5590169608861197) internal successors, (7393), 2889 states have internal predecessors, (7393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:18:42,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2890 states to 2890 states and 7393 transitions. [2021-04-15 01:18:42,001 INFO L78 Accepts]: Start accepts. Automaton has 2890 states and 7393 transitions. Word has length 113 [2021-04-15 01:18:42,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:18:42,001 INFO L480 AbstractCegarLoop]: Abstraction has 2890 states and 7393 transitions. [2021-04-15 01:18:42,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:18:42,001 INFO L276 IsEmpty]: Start isEmpty. Operand 2890 states and 7393 transitions. [2021-04-15 01:18:42,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:18:42,003 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:18:42,004 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:18:42,004 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-04-15 01:18:42,004 INFO L428 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]=== [2021-04-15 01:18:42,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:18:42,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1235012272, now seen corresponding path program 142 times [2021-04-15 01:18:42,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:18:42,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079364211] [2021-04-15 01:18:42,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:18:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:18:43,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:18:43,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079364211] [2021-04-15 01:18:43,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:18:43,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:18:43,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013831827] [2021-04-15 01:18:43,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:18:43,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:18:43,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:18:43,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:18:43,163 INFO L87 Difference]: Start difference. First operand 2890 states and 7393 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:18:44,368 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-04-15 01:18:44,558 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-04-15 01:18:44,870 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-04-15 01:18:45,516 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 60 [2021-04-15 01:18:45,720 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 64 [2021-04-15 01:18:45,906 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-04-15 01:18:46,460 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-04-15 01:18:47,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:18:47,496 INFO L93 Difference]: Finished difference Result 3345 states and 8426 transitions. [2021-04-15 01:18:47,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-04-15 01:18:47,497 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:18:47,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:18:47,499 INFO L225 Difference]: With dead ends: 3345 [2021-04-15 01:18:47,500 INFO L226 Difference]: Without dead ends: 3196 [2021-04-15 01:18:47,500 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 3668.6ms TimeCoverageRelationStatistics Valid=487, Invalid=2375, Unknown=0, NotChecked=0, Total=2862 [2021-04-15 01:18:47,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3196 states. [2021-04-15 01:18:47,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3196 to 2888. [2021-04-15 01:18:47,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2888 states, 2887 states have (on average 2.5594042258399723) internal successors, (7389), 2887 states have internal predecessors, (7389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:18:47,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 7389 transitions. [2021-04-15 01:18:47,529 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 7389 transitions. Word has length 113 [2021-04-15 01:18:47,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:18:47,529 INFO L480 AbstractCegarLoop]: Abstraction has 2888 states and 7389 transitions. [2021-04-15 01:18:47,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:18:47,529 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 7389 transitions. [2021-04-15 01:18:47,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:18:47,531 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:18:47,531 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:18:47,531 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-04-15 01:18:47,531 INFO L428 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]=== [2021-04-15 01:18:47,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:18:47,532 INFO L82 PathProgramCache]: Analyzing trace with hash -240213244, now seen corresponding path program 143 times [2021-04-15 01:18:47,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:18:47,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907022054] [2021-04-15 01:18:47,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:18:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:18:48,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:18:48,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907022054] [2021-04-15 01:18:48,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:18:48,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:18:48,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459661107] [2021-04-15 01:18:48,738 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:18:48,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:18:48,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:18:48,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:18:48,739 INFO L87 Difference]: Start difference. First operand 2888 states and 7389 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:18:49,926 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-04-15 01:18:50,115 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-04-15 01:18:50,416 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-04-15 01:18:50,649 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 61 [2021-04-15 01:18:50,817 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-04-15 01:18:51,440 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-04-15 01:18:53,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:18:53,100 INFO L93 Difference]: Finished difference Result 3694 states and 9285 transitions. [2021-04-15 01:18:53,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-04-15 01:18:53,101 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:18:53,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:18:53,104 INFO L225 Difference]: With dead ends: 3694 [2021-04-15 01:18:53,104 INFO L226 Difference]: Without dead ends: 3443 [2021-04-15 01:18:53,105 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 3968.6ms TimeCoverageRelationStatistics Valid=521, Invalid=2559, Unknown=0, NotChecked=0, Total=3080 [2021-04-15 01:18:53,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3443 states. [2021-04-15 01:18:53,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3443 to 3053. [2021-04-15 01:18:53,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3053 states, 3052 states have (on average 2.5543905635648754) internal successors, (7796), 3052 states have internal predecessors, (7796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:18:53,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3053 states to 3053 states and 7796 transitions. [2021-04-15 01:18:53,138 INFO L78 Accepts]: Start accepts. Automaton has 3053 states and 7796 transitions. Word has length 113 [2021-04-15 01:18:53,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:18:53,138 INFO L480 AbstractCegarLoop]: Abstraction has 3053 states and 7796 transitions. [2021-04-15 01:18:53,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:18:53,138 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states and 7796 transitions. [2021-04-15 01:18:53,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:18:53,142 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:18:53,142 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:18:53,142 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-04-15 01:18:53,142 INFO L428 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]=== [2021-04-15 01:18:53,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:18:53,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1850497702, now seen corresponding path program 144 times [2021-04-15 01:18:53,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:18:53,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270215044] [2021-04-15 01:18:53,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:18:53,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:18:54,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:18:54,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270215044] [2021-04-15 01:18:54,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:18:54,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:18:54,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587322951] [2021-04-15 01:18:54,336 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:18:54,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:18:54,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:18:54,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:18:54,336 INFO L87 Difference]: Start difference. First operand 3053 states and 7796 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:18:55,535 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-04-15 01:18:55,735 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-04-15 01:18:56,070 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-04-15 01:18:56,314 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 61 [2021-04-15 01:18:56,495 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-04-15 01:18:57,148 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-04-15 01:18:57,530 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-04-15 01:18:58,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:18:58,698 INFO L93 Difference]: Finished difference Result 3540 states and 8868 transitions. [2021-04-15 01:18:58,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-04-15 01:18:58,699 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:18:58,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:18:58,702 INFO L225 Difference]: With dead ends: 3540 [2021-04-15 01:18:58,702 INFO L226 Difference]: Without dead ends: 3410 [2021-04-15 01:18:58,703 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 3947.5ms TimeCoverageRelationStatistics Valid=523, Invalid=2669, Unknown=0, NotChecked=0, Total=3192 [2021-04-15 01:18:58,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3410 states. [2021-04-15 01:18:58,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3410 to 3020. [2021-04-15 01:18:58,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3020 states, 3019 states have (on average 2.5531632991056643) internal successors, (7708), 3019 states have internal predecessors, (7708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:18:58,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3020 states to 3020 states and 7708 transitions. [2021-04-15 01:18:58,732 INFO L78 Accepts]: Start accepts. Automaton has 3020 states and 7708 transitions. Word has length 113 [2021-04-15 01:18:58,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:18:58,732 INFO L480 AbstractCegarLoop]: Abstraction has 3020 states and 7708 transitions. [2021-04-15 01:18:58,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:18:58,732 INFO L276 IsEmpty]: Start isEmpty. Operand 3020 states and 7708 transitions. [2021-04-15 01:18:58,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:18:58,734 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:18:58,734 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:18:58,734 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-04-15 01:18:58,734 INFO L428 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]=== [2021-04-15 01:18:58,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:18:58,734 INFO L82 PathProgramCache]: Analyzing trace with hash -407834614, now seen corresponding path program 145 times [2021-04-15 01:18:58,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:18:58,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194753917] [2021-04-15 01:18:58,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:18:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:18:59,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:18:59,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194753917] [2021-04-15 01:18:59,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:18:59,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:18:59,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105547273] [2021-04-15 01:18:59,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:18:59,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:18:59,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:18:59,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:18:59,821 INFO L87 Difference]: Start difference. First operand 3020 states and 7708 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:19:00,910 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-04-15 01:19:01,083 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-04-15 01:19:01,376 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-04-15 01:19:01,623 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 61 [2021-04-15 01:19:01,799 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-04-15 01:19:02,085 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-04-15 01:19:02,577 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-04-15 01:19:02,866 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-04-15 01:19:03,110 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2021-04-15 01:19:04,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:19:04,176 INFO L93 Difference]: Finished difference Result 3473 states and 8725 transitions. [2021-04-15 01:19:04,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-04-15 01:19:04,177 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:19:04,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:19:04,180 INFO L225 Difference]: With dead ends: 3473 [2021-04-15 01:19:04,180 INFO L226 Difference]: Without dead ends: 3174 [2021-04-15 01:19:04,180 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3790.1ms TimeCoverageRelationStatistics Valid=492, Invalid=2478, Unknown=0, NotChecked=0, Total=2970 [2021-04-15 01:19:04,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3174 states. [2021-04-15 01:19:04,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3174 to 2866. [2021-04-15 01:19:04,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2866 states, 2865 states have (on average 2.5598603839441534) internal successors, (7334), 2865 states have internal predecessors, (7334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:19:04,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2866 states to 2866 states and 7334 transitions. [2021-04-15 01:19:04,212 INFO L78 Accepts]: Start accepts. Automaton has 2866 states and 7334 transitions. Word has length 113 [2021-04-15 01:19:04,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:19:04,212 INFO L480 AbstractCegarLoop]: Abstraction has 2866 states and 7334 transitions. [2021-04-15 01:19:04,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:19:04,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2866 states and 7334 transitions. [2021-04-15 01:19:04,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:19:04,214 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:19:04,214 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:19:04,214 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-04-15 01:19:04,214 INFO L428 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]=== [2021-04-15 01:19:04,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:19:04,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1215108278, now seen corresponding path program 146 times [2021-04-15 01:19:04,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:19:04,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190870034] [2021-04-15 01:19:04,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:19:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:19:05,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:19:05,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190870034] [2021-04-15 01:19:05,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:19:05,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:19:05,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273622649] [2021-04-15 01:19:05,470 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:19:05,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:19:05,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:19:05,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:19:05,471 INFO L87 Difference]: Start difference. First operand 2866 states and 7334 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:19:06,654 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-04-15 01:19:06,839 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-04-15 01:19:07,146 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-04-15 01:19:07,383 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 61 [2021-04-15 01:19:07,976 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 64 [2021-04-15 01:19:08,157 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-04-15 01:19:08,656 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-04-15 01:19:09,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:19:09,639 INFO L93 Difference]: Finished difference Result 3265 states and 8241 transitions. [2021-04-15 01:19:09,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-04-15 01:19:09,640 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:19:09,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:19:09,642 INFO L225 Difference]: With dead ends: 3265 [2021-04-15 01:19:09,642 INFO L226 Difference]: Without dead ends: 3063 [2021-04-15 01:19:09,643 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 3806.5ms TimeCoverageRelationStatistics Valid=487, Invalid=2375, Unknown=0, NotChecked=0, Total=2862 [2021-04-15 01:19:09,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3063 states. [2021-04-15 01:19:09,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3063 to 2811. [2021-04-15 01:19:09,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2811 states, 2810 states have (on average 2.5722419928825624) internal successors, (7228), 2810 states have internal predecessors, (7228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:19:09,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2811 states to 2811 states and 7228 transitions. [2021-04-15 01:19:09,670 INFO L78 Accepts]: Start accepts. Automaton has 2811 states and 7228 transitions. Word has length 113 [2021-04-15 01:19:09,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:19:09,671 INFO L480 AbstractCegarLoop]: Abstraction has 2811 states and 7228 transitions. [2021-04-15 01:19:09,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:19:09,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2811 states and 7228 transitions. [2021-04-15 01:19:09,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:19:09,673 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:19:09,673 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:19:09,673 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-04-15 01:19:09,673 INFO L428 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]=== [2021-04-15 01:19:09,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:19:09,673 INFO L82 PathProgramCache]: Analyzing trace with hash 965239338, now seen corresponding path program 147 times [2021-04-15 01:19:09,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:19:09,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606809307] [2021-04-15 01:19:09,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:19:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:19:10,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:19:10,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606809307] [2021-04-15 01:19:10,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:19:10,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:19:10,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336447553] [2021-04-15 01:19:10,827 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:19:10,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:19:10,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:19:10,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:19:10,828 INFO L87 Difference]: Start difference. First operand 2811 states and 7228 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:19:12,037 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2021-04-15 01:19:12,233 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2021-04-15 01:19:12,745 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-04-15 01:19:12,972 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 66 [2021-04-15 01:19:13,285 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 68 [2021-04-15 01:19:15,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:19:15,691 INFO L93 Difference]: Finished difference Result 3377 states and 8356 transitions. [2021-04-15 01:19:15,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-04-15 01:19:15,691 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:19:15,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:19:15,694 INFO L225 Difference]: With dead ends: 3377 [2021-04-15 01:19:15,694 INFO L226 Difference]: Without dead ends: 3136 [2021-04-15 01:19:15,694 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 4145.5ms TimeCoverageRelationStatistics Valid=604, Invalid=2818, Unknown=0, NotChecked=0, Total=3422 [2021-04-15 01:19:15,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3136 states. [2021-04-15 01:19:15,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3136 to 2862. [2021-04-15 01:19:15,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2862 states, 2861 states have (on average 2.564837469416288) internal successors, (7338), 2861 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) [2021-04-15 01:19:15,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2862 states to 2862 states and 7338 transitions. [2021-04-15 01:19:15,723 INFO L78 Accepts]: Start accepts. Automaton has 2862 states and 7338 transitions. Word has length 113 [2021-04-15 01:19:15,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:19:15,723 INFO L480 AbstractCegarLoop]: Abstraction has 2862 states and 7338 transitions. [2021-04-15 01:19:15,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:19:15,723 INFO L276 IsEmpty]: Start isEmpty. Operand 2862 states and 7338 transitions. [2021-04-15 01:19:15,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:19:15,725 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:19:15,725 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:19:15,725 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-04-15 01:19:15,725 INFO L428 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]=== [2021-04-15 01:19:15,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:19:15,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1921850518, now seen corresponding path program 148 times [2021-04-15 01:19:15,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:19:15,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745372866] [2021-04-15 01:19:15,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:19:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:19:16,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:19:16,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745372866] [2021-04-15 01:19:16,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:19:16,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-04-15 01:19:16,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417536941] [2021-04-15 01:19:16,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-04-15 01:19:16,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:19:16,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-04-15 01:19:16,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-04-15 01:19:16,118 INFO L87 Difference]: Start difference. First operand 2862 states and 7338 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) [2021-04-15 01:19:17,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:19:17,070 INFO L93 Difference]: Finished difference Result 3665 states and 8841 transitions. [2021-04-15 01:19:17,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-04-15 01:19:17,071 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 [2021-04-15 01:19:17,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:19:17,074 INFO L225 Difference]: With dead ends: 3665 [2021-04-15 01:19:17,074 INFO L226 Difference]: Without dead ends: 3590 [2021-04-15 01:19:17,075 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 756.3ms TimeCoverageRelationStatistics Valid=214, Invalid=716, Unknown=0, NotChecked=0, Total=930 [2021-04-15 01:19:17,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3590 states. [2021-04-15 01:19:17,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3590 to 2615. [2021-04-15 01:19:17,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2615 states, 2614 states have (on average 2.543993879112471) internal successors, (6650), 2614 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) [2021-04-15 01:19:17,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2615 states to 2615 states and 6650 transitions. [2021-04-15 01:19:17,106 INFO L78 Accepts]: Start accepts. Automaton has 2615 states and 6650 transitions. Word has length 113 [2021-04-15 01:19:17,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:19:17,106 INFO L480 AbstractCegarLoop]: Abstraction has 2615 states and 6650 transitions. [2021-04-15 01:19:17,106 INFO L481 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) [2021-04-15 01:19:17,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2615 states and 6650 transitions. [2021-04-15 01:19:17,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:19:17,108 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:19:17,108 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:19:17,108 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-04-15 01:19:17,108 INFO L428 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]=== [2021-04-15 01:19:17,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:19:17,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1205679124, now seen corresponding path program 149 times [2021-04-15 01:19:17,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:19:17,109 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773472544] [2021-04-15 01:19:17,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:19:17,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:19:18,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:19:18,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773472544] [2021-04-15 01:19:18,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:19:18,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:19:18,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978882024] [2021-04-15 01:19:18,292 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:19:18,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:19:18,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:19:18,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:19:18,293 INFO L87 Difference]: Start difference. First operand 2615 states and 6650 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:19:19,502 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2021-04-15 01:19:19,694 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2021-04-15 01:19:19,906 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-04-15 01:19:20,262 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-04-15 01:19:21,367 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2021-04-15 01:19:22,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:19:22,289 INFO L93 Difference]: Finished difference Result 3026 states and 7560 transitions. [2021-04-15 01:19:22,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 01:19:22,290 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:19:22,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:19:22,292 INFO L225 Difference]: With dead ends: 3026 [2021-04-15 01:19:22,293 INFO L226 Difference]: Without dead ends: 2881 [2021-04-15 01:19:22,293 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 3523.5ms TimeCoverageRelationStatistics Valid=455, Invalid=2301, Unknown=0, NotChecked=0, Total=2756 [2021-04-15 01:19:22,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2021-04-15 01:19:22,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2747. [2021-04-15 01:19:22,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2747 states, 2746 states have (on average 2.5447924253459577) internal successors, (6988), 2746 states have internal predecessors, (6988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:19:22,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2747 states to 2747 states and 6988 transitions. [2021-04-15 01:19:22,320 INFO L78 Accepts]: Start accepts. Automaton has 2747 states and 6988 transitions. Word has length 113 [2021-04-15 01:19:22,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:19:22,320 INFO L480 AbstractCegarLoop]: Abstraction has 2747 states and 6988 transitions. [2021-04-15 01:19:22,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:19:22,320 INFO L276 IsEmpty]: Start isEmpty. Operand 2747 states and 6988 transitions. [2021-04-15 01:19:22,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:19:22,322 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:19:22,322 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:19:22,322 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-04-15 01:19:22,322 INFO L428 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]=== [2021-04-15 01:19:22,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:19:22,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1125191702, now seen corresponding path program 150 times [2021-04-15 01:19:22,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:19:22,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891746021] [2021-04-15 01:19:22,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:19:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:19:23,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:19:23,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891746021] [2021-04-15 01:19:23,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:19:23,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:19:23,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034313352] [2021-04-15 01:19:23,465 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:19:23,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:19:23,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:19:23,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:19:23,465 INFO L87 Difference]: Start difference. First operand 2747 states and 6988 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:19:24,593 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2021-04-15 01:19:24,774 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2021-04-15 01:19:24,974 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-04-15 01:19:25,284 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-04-15 01:19:25,936 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-04-15 01:19:27,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:19:27,381 INFO L93 Difference]: Finished difference Result 3203 states and 7964 transitions. [2021-04-15 01:19:27,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-04-15 01:19:27,383 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:19:27,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:19:27,385 INFO L225 Difference]: With dead ends: 3203 [2021-04-15 01:19:27,385 INFO L226 Difference]: Without dead ends: 2952 [2021-04-15 01:19:27,386 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 3553.7ms TimeCoverageRelationStatistics Valid=487, Invalid=2375, Unknown=0, NotChecked=0, Total=2862 [2021-04-15 01:19:27,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2952 states. [2021-04-15 01:19:27,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2952 to 2780. [2021-04-15 01:19:27,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2780 states, 2779 states have (on average 2.5343648794530407) internal successors, (7043), 2779 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:19:27,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2780 states to 2780 states and 7043 transitions. [2021-04-15 01:19:27,416 INFO L78 Accepts]: Start accepts. Automaton has 2780 states and 7043 transitions. Word has length 113 [2021-04-15 01:19:27,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:19:27,416 INFO L480 AbstractCegarLoop]: Abstraction has 2780 states and 7043 transitions. [2021-04-15 01:19:27,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:19:27,416 INFO L276 IsEmpty]: Start isEmpty. Operand 2780 states and 7043 transitions. [2021-04-15 01:19:27,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:19:27,418 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:19:27,418 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:19:27,418 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-04-15 01:19:27,419 INFO L428 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]=== [2021-04-15 01:19:27,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:19:27,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1297793672, now seen corresponding path program 151 times [2021-04-15 01:19:27,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:19:27,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440954336] [2021-04-15 01:19:27,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:19:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:19:28,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:19:28,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440954336] [2021-04-15 01:19:28,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:19:28,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:19:28,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081547060] [2021-04-15 01:19:28,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:19:28,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:19:28,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:19:28,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:19:28,690 INFO L87 Difference]: Start difference. First operand 2780 states and 7043 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:19:29,944 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2021-04-15 01:19:30,136 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2021-04-15 01:19:30,347 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-04-15 01:19:30,702 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-04-15 01:19:30,864 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-04-15 01:19:31,393 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-04-15 01:19:31,724 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-04-15 01:19:32,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:19:32,973 INFO L93 Difference]: Finished difference Result 3049 states and 7547 transitions. [2021-04-15 01:19:32,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-04-15 01:19:32,975 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:19:32,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:19:32,977 INFO L225 Difference]: With dead ends: 3049 [2021-04-15 01:19:32,977 INFO L226 Difference]: Without dead ends: 2765 [2021-04-15 01:19:32,977 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 3914.4ms TimeCoverageRelationStatistics Valid=489, Invalid=2481, Unknown=0, NotChecked=0, Total=2970 [2021-04-15 01:19:32,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2765 states. [2021-04-15 01:19:32,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2765 to 2593. [2021-04-15 01:19:33,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2593 states, 2592 states have (on average 2.544367283950617) internal successors, (6595), 2592 states have internal predecessors, (6595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:19:33,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2593 states to 2593 states and 6595 transitions. [2021-04-15 01:19:33,004 INFO L78 Accepts]: Start accepts. Automaton has 2593 states and 6595 transitions. Word has length 113 [2021-04-15 01:19:33,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:19:33,004 INFO L480 AbstractCegarLoop]: Abstraction has 2593 states and 6595 transitions. [2021-04-15 01:19:33,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:19:33,004 INFO L276 IsEmpty]: Start isEmpty. Operand 2593 states and 6595 transitions. [2021-04-15 01:19:33,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:19:33,006 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:19:33,006 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:19:33,006 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-04-15 01:19:33,006 INFO L428 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]=== [2021-04-15 01:19:33,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:19:33,006 INFO L82 PathProgramCache]: Analyzing trace with hash 286908160, now seen corresponding path program 152 times [2021-04-15 01:19:33,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:19:33,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516553905] [2021-04-15 01:19:33,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:19:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:19:34,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:19:34,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516553905] [2021-04-15 01:19:34,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:19:34,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:19:34,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114185044] [2021-04-15 01:19:34,380 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:19:34,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:19:34,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:19:34,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:19:34,380 INFO L87 Difference]: Start difference. First operand 2593 states and 6595 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:19:35,626 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2021-04-15 01:19:35,821 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2021-04-15 01:19:36,043 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-04-15 01:19:36,405 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-04-15 01:19:36,881 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 68 [2021-04-15 01:19:38,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:19:38,469 INFO L93 Difference]: Finished difference Result 2777 states and 6931 transitions. [2021-04-15 01:19:38,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-04-15 01:19:38,470 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:19:38,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:19:38,472 INFO L225 Difference]: With dead ends: 2777 [2021-04-15 01:19:38,472 INFO L226 Difference]: Without dead ends: 2619 [2021-04-15 01:19:38,472 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 3850.3ms TimeCoverageRelationStatistics Valid=467, Invalid=2289, Unknown=0, NotChecked=0, Total=2756 [2021-04-15 01:19:38,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2619 states. [2021-04-15 01:19:38,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2619 to 2582. [2021-04-15 01:19:38,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2582 states, 2581 states have (on average 2.546687330492057) internal successors, (6573), 2581 states have internal predecessors, (6573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:19:38,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2582 states to 2582 states and 6573 transitions. [2021-04-15 01:19:38,498 INFO L78 Accepts]: Start accepts. Automaton has 2582 states and 6573 transitions. Word has length 113 [2021-04-15 01:19:38,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:19:38,498 INFO L480 AbstractCegarLoop]: Abstraction has 2582 states and 6573 transitions. [2021-04-15 01:19:38,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:19:38,498 INFO L276 IsEmpty]: Start isEmpty. Operand 2582 states and 6573 transitions. [2021-04-15 01:19:38,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:19:38,500 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:19:38,500 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:19:38,500 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-04-15 01:19:38,500 INFO L428 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]=== [2021-04-15 01:19:38,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:19:38,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1789908974, now seen corresponding path program 153 times [2021-04-15 01:19:38,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:19:38,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260197350] [2021-04-15 01:19:38,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:19:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:19:39,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:19:39,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260197350] [2021-04-15 01:19:39,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:19:39,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-04-15 01:19:39,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555425304] [2021-04-15 01:19:39,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-04-15 01:19:39,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:19:39,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-04-15 01:19:39,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-04-15 01:19:39,794 INFO L87 Difference]: Start difference. First operand 2582 states and 6573 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:19:41,139 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2021-04-15 01:19:41,352 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2021-04-15 01:19:41,588 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-04-15 01:19:42,240 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 66 [2021-04-15 01:19:42,567 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 68 [2021-04-15 01:19:43,132 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-04-15 01:19:44,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:19:44,155 INFO L93 Difference]: Finished difference Result 2803 states and 6975 transitions. [2021-04-15 01:19:44,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 01:19:44,156 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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 [2021-04-15 01:19:44,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:19:44,158 INFO L225 Difference]: With dead ends: 2803 [2021-04-15 01:19:44,158 INFO L226 Difference]: Without dead ends: 2559 [2021-04-15 01:19:44,159 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 3747.4ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-04-15 01:19:44,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2021-04-15 01:19:44,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 2525. [2021-04-15 01:19:44,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2525 states, 2524 states have (on average 2.559825673534073) internal successors, (6461), 2524 states have internal predecessors, (6461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-15 01:19:44,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2525 states to 2525 states and 6461 transitions. [2021-04-15 01:19:44,183 INFO L78 Accepts]: Start accepts. Automaton has 2525 states and 6461 transitions. Word has length 113 [2021-04-15 01:19:44,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:19:44,183 INFO L480 AbstractCegarLoop]: Abstraction has 2525 states and 6461 transitions. [2021-04-15 01:19:44,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 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) [2021-04-15 01:19:44,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2525 states and 6461 transitions. [2021-04-15 01:19:44,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:19:44,186 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:19:44,186 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:19:44,186 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-04-15 01:19:44,186 INFO L428 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]=== [2021-04-15 01:19:44,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:19:44,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1650899368, now seen corresponding path program 154 times [2021-04-15 01:19:44,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:19:44,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887671694] [2021-04-15 01:19:44,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:19:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:19:45,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:19:45,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887671694] [2021-04-15 01:19:45,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:19:45,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:19:45,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206227420] [2021-04-15 01:19:45,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:19:45,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:19:45,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:19:45,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:19:45,211 INFO L87 Difference]: Start difference. First operand 2525 states and 6461 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:19:46,216 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2021-04-15 01:19:46,566 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 52 [2021-04-15 01:19:47,069 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 55 [2021-04-15 01:19:47,276 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 60 [2021-04-15 01:19:47,523 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 64 [2021-04-15 01:19:47,884 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 66 [2021-04-15 01:19:48,066 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-04-15 01:19:48,227 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-04-15 01:19:48,472 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-04-15 01:19:49,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-15 01:19:49,468 INFO L93 Difference]: Finished difference Result 2817 states and 7030 transitions. [2021-04-15 01:19:49,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 01:19:49,469 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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 [2021-04-15 01:19:49,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-15 01:19:49,471 INFO L225 Difference]: With dead ends: 2817 [2021-04-15 01:19:49,471 INFO L226 Difference]: Without dead ends: 2630 [2021-04-15 01:19:49,472 INFO L807 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 3557.3ms TimeCoverageRelationStatistics Valid=424, Invalid=2026, Unknown=0, NotChecked=0, Total=2450 [2021-04-15 01:19:49,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2630 states. [2021-04-15 01:19:49,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2630 to 2538. [2021-04-15 01:19:49,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2538 states, 2537 states have (on average 2.555774536854553) internal successors, (6484), 2537 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) [2021-04-15 01:19:49,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2538 states to 2538 states and 6484 transitions. [2021-04-15 01:19:49,495 INFO L78 Accepts]: Start accepts. Automaton has 2538 states and 6484 transitions. Word has length 113 [2021-04-15 01:19:49,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-15 01:19:49,496 INFO L480 AbstractCegarLoop]: Abstraction has 2538 states and 6484 transitions. [2021-04-15 01:19:49,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:19:49,496 INFO L276 IsEmpty]: Start isEmpty. Operand 2538 states and 6484 transitions. [2021-04-15 01:19:49,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-04-15 01:19:49,498 INFO L543 BasicCegarLoop]: Found error trace [2021-04-15 01:19:49,498 INFO L551 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-15 01:19:49,498 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-04-15 01:19:49,498 INFO L428 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]=== [2021-04-15 01:19:49,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-15 01:19:49,498 INFO L82 PathProgramCache]: Analyzing trace with hash -680133084, now seen corresponding path program 155 times [2021-04-15 01:19:49,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-15 01:19:49,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741985826] [2021-04-15 01:19:49,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-15 01:19:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-15 01:19:50,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-15 01:19:50,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741985826] [2021-04-15 01:19:50,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-15 01:19:50,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-04-15 01:19:50,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484905377] [2021-04-15 01:19:50,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-04-15 01:19:50,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-15 01:19:50,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-04-15 01:19:50,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2021-04-15 01:19:50,460 INFO L87 Difference]: Start difference. First operand 2538 states and 6484 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 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) [2021-04-15 01:19:51,386 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2021-04-15 01:19:51,701 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 52 [2021-04-15 01:19:52,156 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 55 [2021-04-15 01:19:52,336 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 60 [2021-04-15 01:19:52,671 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 62 [2021-04-15 01:19:52,871 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-04-15 01:19:53,040 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-04-15 01:19:53,232 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2021-04-15 01:19:53,454 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2021-04-15 01:19:54,056 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2021-04-15 01:19:54,920 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 Received shutdown request... [2021-04-15 01:19:55,184 WARN L222 SmtUtils]: Removed 8 from assertion stack [2021-04-15 01:19:55,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-04-15 01:19:55,185 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-04-15 01:19:55,185 WARN L545 AbstractCegarLoop]: Verification canceled [2021-04-15 01:19:55,188 WARN L224 ceAbstractionStarter]: Timeout [2021-04-15 01:19:55,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 01:19:55 BasicIcfg [2021-04-15 01:19:55,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-15 01:19:55,189 INFO L168 Benchmark]: Toolchain (without parser) took 729952.78 ms. Allocated memory was 255.9 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 230.9 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 154.5 MB. Max. memory is 16.0 GB. [2021-04-15 01:19:55,189 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-15 01:19:55,189 INFO L168 Benchmark]: CACSL2BoogieTranslator took 938.84 ms. Allocated memory was 255.9 MB in the beginning and 367.0 MB in the end (delta: 111.1 MB). Free memory was 230.9 MB in the beginning and 311.5 MB in the end (delta: -80.7 MB). Peak memory consumption was 56.3 MB. Max. memory is 16.0 GB. [2021-04-15 01:19:55,189 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.05 ms. Allocated memory is still 367.0 MB. Free memory was 311.5 MB in the beginning and 308.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-04-15 01:19:55,189 INFO L168 Benchmark]: Boogie Preprocessor took 70.91 ms. Allocated memory is still 367.0 MB. Free memory was 308.4 MB in the beginning and 305.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-15 01:19:55,189 INFO L168 Benchmark]: RCFGBuilder took 635.65 ms. Allocated memory is still 367.0 MB. Free memory was 305.3 MB in the beginning and 323.6 MB in the end (delta: -18.4 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-04-15 01:19:55,189 INFO L168 Benchmark]: TraceAbstraction took 728214.63 ms. Allocated memory was 367.0 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 322.6 MB in the beginning and 1.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 136.6 MB. Max. memory is 16.0 GB. [2021-04-15 01:19:55,190 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 938.84 ms. Allocated memory was 255.9 MB in the beginning and 367.0 MB in the end (delta: 111.1 MB). Free memory was 230.9 MB in the beginning and 311.5 MB in the end (delta: -80.7 MB). Peak memory consumption was 56.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 86.05 ms. Allocated memory is still 367.0 MB. Free memory was 311.5 MB in the beginning and 308.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 70.91 ms. Allocated memory is still 367.0 MB. Free memory was 308.4 MB in the beginning and 305.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 635.65 ms. Allocated memory is still 367.0 MB. Free memory was 305.3 MB in the beginning and 323.6 MB in the end (delta: -18.4 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 728214.63 ms. Allocated memory was 367.0 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 322.6 MB in the beginning and 1.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 136.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1693). Cancelled while BasicCegarLoop was constructing difference of abstraction (2538states) and FLOYD_HOARE automaton (currently 29 states, 26 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 36 for 16ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1693). Cancelled while BasicCegarLoop was constructing difference of abstraction (2538states) and FLOYD_HOARE automaton (currently 29 states, 26 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 36 for 16ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1693). Cancelled while BasicCegarLoop was constructing difference of abstraction (2538states) and FLOYD_HOARE automaton (currently 29 states, 26 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 36 for 16ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1693). Cancelled while BasicCegarLoop was constructing difference of abstraction (2538states) and FLOYD_HOARE automaton (currently 29 states, 26 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 36 for 16ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1693). Cancelled while BasicCegarLoop was constructing difference of abstraction (2538states) and FLOYD_HOARE automaton (currently 29 states, 26 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 36 for 16ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1693). Cancelled while BasicCegarLoop was constructing difference of abstraction (2538states) and FLOYD_HOARE automaton (currently 29 states, 26 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 36 for 16ms.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 140 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 728112.5ms, OverallIterations: 194, TraceHistogramMax: 1, EmptinessCheckTime: 630.8ms, AutomataDifference: 565172.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 324.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 35479 SDtfs, 168050 SDslu, 400953 SDs, 0 SdLazy, 247366 SolverSat, 17680 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 124924.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10554 GetRequests, 740 SyntacticMatches, 568 SemanticMatches, 9245 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79694 ImplicationChecksByTransitivity, 491686.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8013occurred in iteration=4, InterpolantAutomatonStates: 5740, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 8890.8ms AutomataMinimizationTime, 193 MinimizatonAttempts, 160182 StatesRemovedByMinimization, 190 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 341.1ms SsaConstructionTime, 2707.8ms SatisfiabilityAnalysisTime, 148467.6ms InterpolantComputationTime, 21437 NumberOfCodeBlocks, 21437 NumberOfCodeBlocksAsserted, 194 NumberOfCheckSat, 21243 ConstructedInterpolants, 0 QuantifiedInterpolants, 447856 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 194 InterpolantComputations, 194 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